Minimal information for studies of extracellular vesicles 2018 (MISEV2018): a position statement of the International Society for Extracellular Vesicles and update of the MISEV2014 guidelines — TEI-tagged view

Clotilde Théry, Kenneth W. Witwer, Elena Aïkawa, María José Alcaraz, Johnathon D. Anderson, Ramaroson Andriantsitohaina, Anna Antoniou, Tanina Arab, Fabienne Archer, Georgia K. Atkin‐Smith, D. Craig Ayre, Jean‐Marie Bach, Daniel Bachurski, Hossein Baharvand, Leonora Balaj, Shawn Baldacchino, Natalie Bauer, Amy A. Baxter, Mary Bebawy, Carla Beckham, Apolonija Bedina Zavec, Abderrahim Benmoussa, Anna C. Berardi, Paolo Bergese, Ewa Bielska, Cherie Blenkiron, Sylwia Bobis‐Wozowicz, Éric Boilard, Wilfrid Boireau, Antonella Bongiovanni, Francesc E. Borràs, Steffi Bösch, Chantal M. Boulanger, Xandra O. Breakefield, Andrew Breglio, Meadhbh Á. Brennan, David R. Brigstock, Alain Brisson, Marike L. D. Broekman, Jacqueline Bromberg, Paulina Bryl‐Górecka, Shilpa Buch, Amy H. Buck, Dylan Burger, Sara Busatto, Dominik Buschmann, Benedetta Bussolati, Edit I. Buzás, James Brian Byrd, Giovanni Camussi, David R. F. Carter, Sarah Caruso, Lawrence W. Chamley, Yu‐Ting Chang, Chihchen Chen, Daiwen Chen, Lesley Cheng, Andrew R. Chin, Aled Clayton, Stefano Piatto Clerici, Alex Cocks, Emanuele Cocucci, Robert J. Coffey, Anabela Cordeiro‐da‐Silva, Yvonne Couch, Frank A. W. Coumans, Beth Coyle, Rossella Crescitelli, Miriã Ferreira Criado, Crislyn D’Souza‐Schorey, Saumya Das, Amrita Datta Chaudhuri, Paola de Candia, Eliezer F De Santana, Olivier De Wever, Hernando A. del Portillo, Tanguy Demaret, Sarah Deville, Andrew Devitt, Bert Dhondt, Dolores Di Vizio, Lothar C. Dieterich, Vincenza Dolo, Ana Paula Domínguez Rubio, Massimo Dominici, Maurício Rocha Dourado, Tom A. P. Driedonks, Filipe V. Duarte, Heather M. Duncan, Ramon M. Eichenberger, Karin M. Ekström, Samir EL Andaloussi, Céline Élie-Caille, Uta Erdbrügger, Juan Manuel Falcón‐Pérez, Farah Fatima, Jason E. Fish, Miguel Flores‐Bellver, András Försönits, Annie Frelet‐Barrand, Fabia Fricke, Gregor Fuhrmann, Susanne Gabrielsson, Ana Gámez‐Valero, Chris Gardiner, Kathrin Gärtner, Raphaël Gaudin, Yong Song Gho, Bernd Giebel, Caroline Gilbert, Mario Gimona, Ilaria Giusti, Deborah C. I. Goberdhan, André Görgens, Sharon M. Gorski, David W. Greening, Julia Christina Gross, Alice Gualerzi, Gopal N. Gupta, Dakota Gustafson, Aase Handberg, Reka A. Haraszti, Paul Harrison, Hargita Hegyesi, An Hendrix, Andrew F. Hill, Fred H. Hochberg, Karl F. Hoffmann, Beth Holder, Harry Holthöfer, Baharak Hosseinkhani, Guoku Hu, Yiyao Huang, Veronica Huber, Stuart Hunt, Ahmed Ibrahim, Tsuneya Ikezu, Jameel M. Inal, Mustafa Işın, Alena Ivanova, Hannah K. Jackson, Søren Jacobsen, Steven M. Jay, Muthuvel Jayachandran, Guido Jenster, Lanzhou Jiang, Suzanne M. Johnson, Jennifer Jones, Ambrose Jong, Tijana Jovanović‐Talisman, Stephanie Jung, Raghu Kalluri, Shin‐ichi Kano, Sukhbir Kaur, Yumi Kawamura, Evan T. Keller, Delaram Khamari, Elena Khomyakova, Anastasia Khvorova, Peter Kierulf, Kwang Pyo Kim, Thomas Kislinger, Mikael Klingeborn, David J. Klinke, Miroslaw Kornek, Maja Kosanović, Árpád Ferenc Kovács, Eva‐Maria Krämer‐Albers, Susanne Krasemann, Mirja Krause, Igor V. Kurochkin, Gina D. Kusuma, Sören Kuypers, Saara Laitinen, Scott M. Langevin, Lucia R. Languino, Joanne Lannigan, Cecilia Lässer, Louise C. Laurent, Grégory Lavieu, Elisa Lázaro‐Ibáñez, Soazig Le Lay, Myung‐Shin Lee, Yi Lee, Débora S. Lemos, Metka Lenassi, Aleksandra Leszczynska, Isaac T. S. Li, Ke Liao, Sten F.W.M. Libregts, Erzsébet Ligeti, Rebecca Lim, Sai Kiang Lim, Aija Linē, Karen Linnemannstöns, Alicia Llorente, Catherine Lombard, Magdalena J. Lorenowicz, Ákos M. Lőrincz, Jan Lötvall, Jason Lovett, Michelle C. Lowry, Xavier Loyer, Quan Lu, Barbara Łukomska, Taral R. Lunavat, Sybren L. N. Maas, Harmeet Malhi, Antonio Marcilla, Jacopo Mariani, Javier Mariscal, Elena S. Martens‐Uzunova, Lorena Martín‐Jaular, Maria Carmen Martínez, Vilma R. Martins, Mathilde Mathieu, Suresh Mathivanan, Marco Maugeri, Lynda K. McGinnis, Mark J. McVey, David G. Meckes, Katie Meehan, Inge Mertens, Valentina R. Minciacchi, Andreas Möller, Maléne Møller Jørgensen, Aizea Morales‐Kastresana, Jess Morhayim, François Mullier, Maurizio Muraca, Luca Musante, Veronika Mussack, Dillon C. Muth, Kathryn H. Myburgh, Tanbir Najrana, Muhammad Nawaz, Irina Nazarenko, Peter Nejsum, Christian Néri, Tommaso Neri, Rienk Nieuwland, Leonardo Nimrichter, John P. Nolan, Esther Nm Nolte-'t Hoen, Nicole Noren Hooten, Lorraine O’Driscoll, Tina O’Grady, Ana O’Loghlen, Takahiro Ochiya, Martin Olivier, Alberto Ortíz, Luis A. Ortiz, Xabier Osteikoetxea, Ole Østergaard, Matías Ostrowski, Jaesung Park, D. Michiel Pegtel, Héctor Peinado, Francesca Perut, Michael W. Pfaffl, Donald G. Phinney, Bartijn C. H. Pieters, Ryan Pink, David S. Pisetsky, Elke Pogge von Strandmann, Iva Polakovičová, Ivan K. H. Poon, Bonita H. Powell, Ilaria Prada, Lynn Pulliam, Peter J. Quesenberry, Annalisa Radeghieri, Robert L. Raffaı̈, Stefania Raimondo, Janusz Rak, Marcel I. Ramirez, Graça Raposo, Morsi Rayyan, Neta Regev‐Rudzki, Franz Ricklefs, Paul D. Robbins, David D. Roberts, Sílvia C. Rodrigues, Eva Rohde, Sophie Rome, Kasper M.A. Rouschop, Aurelia Rughetti, Ashley E. Russell, Paula Saá, Susmita Sahoo, Edison Salas‐Huenuleo, Catherine Sánchez, Julie A. Saugstad, Meike J. Saul, Raymond M. Schiffelers, Raphaël Schneider, Tine Hiorth Schøyen, Aaron Scott, Eriomina Shahaj, Shivani Sharma, Olga Shatnyeva, Faezeh Shekari, Ganesh Vilas Shelke, Ashok K. Shetty, Kiyotaka Shiba, Pia Siljander, Andreia Silva, Agata Skowronek, Orman L. Snyder, Rodrigo Pedro Soares, Barbara W. Sódar, Carolina Soekmadji, Javier Sotillo, Philip D. Stahl, Willem Stoorvogel, Shannon L. Stott, Erwin Strasser, Simon Swift, Hidetoshi Tahara, Muneesh Tewari, Kate Timms, Swasti Tiwari, Rochelle Tixeira, Mercedes Tkach, Wei Seong Toh, Richard Tomasini, Ana Cláudia Torrecilhas, Juan Pablo Tosar, Vasilis Toxavidis, Lorena Urbanelli, Pieter Vader, Bas WM van Balkom, Susanne G van der Grein, Jan Van Deun, Martijn J. C. van Herwijnen, Kendall Van Keuren‐Jensen, Guillaume van Niel, Martin E. van Royen, André J. van Wijnen, M. Helena Vasconcelos, Ivan J. Vechetti, Tiago Degani Veit, Laura J. Vella, Émilie Velot, Frederik J. Verweij, Beate Vestad, Jose L. Viñas, Tamás Visnovitz, Krisztina V Vukman, Jessica Wahlgren, Dionysios C. Watson, Marca H. M. Wauben, Alissa M. Weaver, Jason Webber, Viktoria Weber, Ann M. Wehman, Daniel J. Weiss, Joshua A Welsh, Sebastian Wendt, Åsa M. Wheelock, Zoltán Wiener, Leonie Witte, Joy Wolfram, Angeliki Xagorari, Patrícia Xander, Jing Xu, Xiaomei Yan, María Yáñez‐Mó, Hang Yin, Yuana Yuana, Valentina Zappulli, Jana Zárubová, Vytautas Žėkas, Jianye Zhang, Zezhou Zhao, Lei Zheng, Alexander R. Zheutlin, Antje M. Zickler, Pascale Zimmermann, Angela M. Zivkovic, Davide Zocco, Ewa Zuba‐Surma · 2018 · biology · doi:10.1080/20013078.2018.1535750 · TEI xml · tagged edition · index · concepts · authors
Where this record's text came from. 2026-08-22 and 2026-08-26 schema-0.3 passes: every quote verified as an exact substring of the staged text and anchored at merge time; concept terms verified present; every edge endpoint an existing node. Update, 11 September 2026: title completed from Crossref (https://doi.org/10.1080/20013078.2018.1535750); it had been cut at 150 characters by an internal tool 'display_name[:150]',
7 quotations on this page contain a reference number where the paper printed a superscript. This journal style prints citations as raised numerals — parameters12,13 — and the extraction flattened them into the line, so the sentence reads parameters 12 , 13 . The digits are citation markers and not part of what the author wrote. The quotes keep them for the same reason they keep every other extraction fault: a quote is reproduced exactly or it proves nothing.
Other fields define these differently the same word, defined another way in another discipline
Consensus 6 fields · exosome 2 fields
Tags on this paper every tag the record carries, whether or not the words occur in the text below — a number is how many papers in the corpus carry that tag; a tag with no number is unique to this paper
extracellular vesicle operational terms biogenesis pathway small EVs3 extracellular particle exosome3 microvesicle2 expert-consensus69
Method, as described: an ISEV position statement, each section carrying a recorded consensus vote of the society's survey respondents

Our tag layer for this paper

Cross-disciplinary analysis
content-tags & facets: phenomenon · claim-type · cross-domain-transfer · mechanism · claim-relation · replication-status · limitation — grounded in the full text
phenomenonparticles naturally released from the cell, delimited by a lipid bilayer, that cannot replicate - and whose subcellular origin cannot be read off the particle— “ISEV endorses “extracellular vesicle” (EV) as the generic term for particles naturally released from the cell that are delimited by a lipid bilayer and cannot replicate, i.e. do not contain a functional nucleus.”
claim-typemethod— “Therefore, unless authors can establish specific markers of subcellular origin that are reliable within their experimental system(s), authors are urged to consider use of operational terms for EV subtypes”
method — evidence— “Consensus: 94% of MISEV2018 Survey respondents endorsed this nomenclature recommendation. The remainder were evenly split between dissent and a preference for no nomenclature recommendation.”
object of study — evidence— “ISEV endorses “extracellular vesicle” (EV) as the generic term for particles naturally released from the cell that are delimited by a lipid bilayer and cannot replicate, i.e. do not contain a functional nucleus.”
research question — evidence— “Since consensus has not yet emerged on specific markers of EV subtypes, such as endosome-origin “exosomes” and plasma membrane-derived “ectosomes” (microparticles/microvesicles) [ 3 , 4 ] assigning an EV to a particular biogenesis pathway remains extraordinarily difficult unless, e.g. the EV is caught in the act of release by live imaging…
contribution — evidence— “Therefore, unless authors can establish specific markers of subcellular origin that are reliable within their experimental system(s), authors are urged to consider use of operational terms for EV subtypes”
mechanismTHE ONLY INSTRUMENT THAT COULD SETTLE THE DEFINITION IS NAMED, AND IT IS NOT AN ASSAY ON THE SAMPLE: assigning an EV to a biogenesis pathway `remains extraordinarily difficult unless, e.g. the EV is caught in the act of release by live imaging techniques`. The defining property is a history and must be WATCHED, not measured— “Since consensus has not yet emerged on specific markers of EV subtypes, such as endosome-origin “exosomes” and plasma membrane-derived “ectosomes” (microparticles/microvesicles) [ 3 , 4 ] assigning an EV to a particular biogenesis pathway remains extraordinarily difficult unless, e.g. the EV is caught in the act of release by live imaging…mechanisms[0]
critiques 'exosome' and 'microvesicle' as category labels, on the ground that they are historically burdened by manifold, contradictory definitions and inaccurate expectations of unique biogenesis— “in the place of terms such as exosome and microvesicle that are historically burdened by both manifold, contradictory definitions and inaccurate expectations of unique biogenesis.”claim_relations[0]
extends MISEV2014, updated here - and itself updated by MISEV2023, which deletes the word 'naturally' from the definition below— “ISEV endorses “extracellular vesicle” (EV) as the generic term for particles naturally released from the cell that are delimited by a lipid bilayer and cannot replicate, i.e. do not contain a functional nucleus.”claim_relations[1]
critiques assigning an EV to a biogenesis pathway from a preparation, since that assignment needs the vesicle caught in the act of release by live imaging— “Since consensus has not yet emerged on specific markers of EV subtypes, such as endosome-origin “exosomes” and plasma membrane-derived “ectosomes” (microparticles/microvesicles) [ 3 , 4 ] assigning an EV to a particular biogenesis pathway remains extraordinarily difficult unless, e.g. the EV is caught in the act of release by live imaging…claim_relations[2]
senseextracellular vesicle, 2018 - `particles naturally released from the cell that are delimited by a lipid bilayer and cannot replicate`. THE WORD `naturally` OCCURS EXACTLY ONCE IN THIS DOCUMENT, here, and MISEV2023 minutes its removal `to avoid unintended exclusion of engineered EVs`. A category boundary edited in public, one word, five years apart, and both texts are now in this corpus— “ISEV endorses “extracellular vesicle” (EV) as the generic term for particles naturally released from the cell that are delimited by a lipid bilayer and cannot replicate, i.e. do not contain a functional nucleus.”senses[0]
senseoperational term - a name that states what was MEASURED: size (sEV under 100 or 200 nm, m/lEV over 200 nm), density, biochemical composition, or cell of origin. THE FIELD RETREATS FROM A HISTORY TO A DIAMETER, with the ranges required to be stated— “physical characteristics of EVs, such as size (“small EVs” (sEVs) and “medium/large EVs” (m/lEVs), with ranges defined, for instance, respectively, < 100nm or < 200nm [small], or > 200nm [large and/or medium]) or density (low, middle, high, with each range defined)”senses[1]
senseexosome / microvesicle, 2018 - terms to be used IN THE PLACE OF NOTHING: the document asks authors to put operational terms `in the place of` these, and if that is unavoidable, to define them `clearly and prominently at the beginning of each publication`. A vocabulary conceding that its words carry no shared meaning— “If it is deemed unavoidable to use these or newly coined terms, they should be defined clearly and prominently at the beginning of each publication”senses[2]
senseextracellular particle (EP) - the honest fallback. Where EV identity cannot be confirmed to this document's minimal requirements, the claim of vesicularity is dropped rather than asserted weakly— “If confirmation of EV identity cannot be achieved according to the minimal requirements of this MISEV2018 publication, other terms such as extracellular particle (EP) might be more appropriate.”senses[3]
sense`exosome` / `microvesicle` - RETIRED BY A CONSORTIUM, AND THE STATED REASON IS TWO FAULTS AT ONCE: `terms such as exosome and microvesicle that are historically burdened by both manifold, contradictory definitions and inaccurate expectations of unique biogenesis.` The first fault is that the word means different things to different authors; the second is that it means something the experiment did not show. A name can be ambiguous without being presumptuous, and these are charged with both.— “in the place of terms such as exosome and microvesicle that are historically burdened by both manifold, contradictory definitions and inaccurate expectations of unique biogenesis.”senses[4]
senseTHE REPLACEMENT IS A CHANGE OF KIND, NOT A CHANGE OF WORD: an ORIGIN-based vocabulary is swapped for a MEASUREMENT-based one. `operational terms for EV subtypes that refer to a) physical characteristics ... such as size (“small EVs” (sEVs) ...) or density ...; b) biochemical composition ...; or c) descriptions of conditions or cell of origin ... in the place of terms such as exosome and microvesicle`. Every replacement names something the experimenter can measure; the retired terms named where the vesicle came from.— “Therefore, unless authors can establish specific markers of subcellular origin that are reliable within their experimental system(s), authors are urged to consider use of operational terms for EV subtypes that refer to a) physical characteristics of EVs, such as size (“small EVs” (sEVs) and “medium/large EVs” (m/lEVs), with ranges defined…senses[5]
controlthe nomenclature recommendation was put to the society's survey and the result printed with it - 94% endorsed, and the remainder split evenly between dissent and a preference for NO nomenclature recommendation at all — held— “Consensus: 94% of MISEV2018 Survey respondents endorsed this nomenclature recommendation. The remainder were evenly split between dissent and a preference for no nomenclature recommendation.” — rules out a committee's preference presented as the field's position, and it reports the shape of the dissent rather than only its size— “Consensus: 94% of MISEV2018 Survey respondents endorsed this nomenclature recommendation. The remainder were evenly split between dissent and a preference for no nomenclature recommendation.”controls[0]
controlwhether a marker exists that would let an author keep using a biogenesis-based subtype name — failed— “We find ourselves at an exciting scientific frontier; where such markers are not yet available, we encourage their development and publication, using the principles of this document as a guide.” — rules out nothing - consensus has not emerged on specific markers of EV subtypes, and the document says where such markers are not yet available it can only encourage their development— “Since consensus has not yet emerged on specific markers of EV subtypes, such as endosome-origin “exosomes” and plasma membrane-derived “ectosomes” (microparticles/microvesicles) [ 3 , 4 ] assigning an EV to a particular biogenesis pathway remains extraordinarily difficult unless, e.g. the EV is caught in the act of release by live imaging…controls[1]
controlauthors who must use a burdened term anyway are required to define it clearly and prominently at the beginning of each publication — absent-declared-unreported— “If it is deemed unavoidable to use these or newly coined terms, they should be defined clearly and prominently at the beginning of each publication” — rules out a paper inheriting one of the manifold contradictory definitions silently, so that a reader cannot tell which one is meant— “If it is deemed unavoidable to use these or newly coined terms, they should be defined clearly and prominently at the beginning of each publication”controls[2]
controlif EV identity cannot be confirmed to the minimal requirements, the claim itself is withdrawn - 'extracellular particle' replaces 'extracellular vesicle' — absent-declared-unreported— “If confirmation of EV identity cannot be achieved according to the minimal requirements of this MISEV2018 publication, other terms such as extracellular particle (EP) might be more appropriate.” — rules out a vesicular claim resting on a preparation that was never shown to contain vesicles— “If confirmation of EV identity cannot be achieved according to the minimal requirements of this MISEV2018 publication, other terms such as extracellular particle (EP) might be more appropriate.”controls[3]
weight'exosome' and 'microvesicle' as category labels, on the ground that they are historically burdened by manifold, contradictory definitions and inaccurate expectations of unique biogenesis — 0.95— “in the place of terms such as exosome and microvesicle that are historically burdened by both manifold, contradictory definitions and inaccurate expectations of unique biogenesis.”claim_relations[0]
weightMISEV2014, updated here - and itself updated by MISEV2023, which deletes the word 'naturally' from the definition below — 0.9— “ISEV endorses “extracellular vesicle” (EV) as the generic term for particles naturally released from the cell that are delimited by a lipid bilayer and cannot replicate, i.e. do not contain a functional nucleus.”claim_relations[1]
weightassigning an EV to a biogenesis pathway from a preparation, since that assignment needs the vesicle caught in the act of release by live imaging — 0.85— “Since consensus has not yet emerged on specific markers of EV subtypes, such as endosome-origin “exosomes” and plasma membrane-derived “ectosomes” (microparticles/microvesicles) [ 3 , 4 ] assigning an EV to a particular biogenesis pathway remains extraordinarily difficult unless, e.g. the EV is caught in the act of release by live imaging…claim_relations[2]
auditsmall EVs —contrasted-with→ exosome — Audit 2026-09-28: DOUBTFUL - read against its span and kept, but authors are urged to use operational terms such as small EVs; contrasted-with is loose.— “Therefore, unless authors can establish specific markers of subcellular origin that are reliable within their experimental system(s), authors are urged to consider use of operational terms for EV subtypes that refer to a) physical characteristics of EVs, such as size (“small EVs” (sEVs) and “medium/large EVs” (m/lEVs), with ranges defined…concept_edges[0]
notesmall EVs —contrasted-with→ exosome — The consortium proposes the first IN THE PLACE OF the second. Not 'same-as': the point of the recommendation is that 'small EVs' claims LESS than 'exosome' did, so they are not interchangeable.— “Therefore, unless authors can establish specific markers of subcellular origin that are reliable within their experimental system(s), authors are urged to consider use of operational terms for EV subtypes that refer to a) physical characteristics of EVs, such as size (“small EVs” (sEVs) and “medium/large EVs” (m/lEVs), with ranges defined…concept_edges[0]
auditoperational terms —contrasted-with→ exosome — Audit 2026-09-28: DOUBTFUL - read against its span and kept, but the same span; contrasted-with is loose.— “Therefore, unless authors can establish specific markers of subcellular origin that are reliable within their experimental system(s), authors are urged to consider use of operational terms for EV subtypes that refer to a) physical characteristics of EVs, such as size (“small EVs” (sEVs) and “medium/large EVs” (m/lEVs), with ranges defined…concept_edges[1]
noteoperational terms —contrasted-with→ exosome — The contrast is between two KINDS of name - operational versus biogenetic - and the paper draws it explicitly with 'in the place of'.— “Therefore, unless authors can establish specific markers of subcellular origin that are reliable within their experimental system(s), authors are urged to consider use of operational terms for EV subtypes that refer to a) physical characteristics of EVs, such as size (“small EVs” (sEVs) and “medium/large EVs” (m/lEVs), with ranges defined…concept_edges[1]
outcomecontrol — held— “Consensus: 94% of MISEV2018 Survey respondents endorsed this nomenclature recommendation. The remainder were evenly split between dissent and a preference for no nomenclature recommendation.”controls[0]
outcomecontrol — failed— “Since consensus has not yet emerged on specific markers of EV subtypes, such as endosome-origin “exosomes” and plasma membrane-derived “ectosomes” (microparticles/microvesicles) [ 3 , 4 ] assigning an EV to a particular biogenesis pathway remains extraordinarily difficult unless, e.g. the EV is caught in the act of release by live imaging…— “We find ourselves at an exciting scientific frontier; where such markers are not yet available, we encourage their development and publication, using the principles of this document as a guide.”controls[1]
outcomecontrol — absent-declared-unreported— “If it is deemed unavoidable to use these or newly coined terms, they should be defined clearly and prominently at the beginning of each publication”controls[2]
outcomecontrol — absent-declared-unreported— “If confirmation of EV identity cannot be achieved according to the minimal requirements of this MISEV2018 publication, other terms such as extracellular particle (EP) might be more appropriate.”controls[3]
limitationconsensus has not emerged on specific markers of EV subtypes - endosome-origin `exosomes` and plasma-membrane-derived `ectosomes` - so the subtype names cannot be supported by any marker in routine use— “Since consensus has not yet emerged on specific markers of EV subtypes, such as endosome-origin “exosomes” and plasma membrane-derived “ectosomes” (microparticles/microvesicles) [ 3 , 4 ] assigning an EV to a particular biogenesis pathway remains extraordinarily difficult unless, e.g. the EV is caught in the act of release by live imaging…limitations[0]
limitationTHE FIELD'S OWN WORDS FOR ITS OWN TERMS: `exosome` and `microvesicle` are `historically burdened by both manifold, contradictory definitions and inaccurate expectations of unique biogenesis`— “in the place of terms such as exosome and microvesicle that are historically burdened by both manifold, contradictory definitions and inaccurate expectations of unique biogenesis.”limitations[1]
limitationwhere the markers this document asks for do not exist, it says so and asks the field to develop them - `where such markers are not yet available, we encourage their development and publication`— “We find ourselves at an exciting scientific frontier; where such markers are not yet available, we encourage their development and publication, using the principles of this document as a guide.”limitations[2]
limitationthe fallback if EV identity cannot be confirmed at all is to STOP CLAIMING IT: `other terms such as extracellular particle (EP) might be more appropriate`— “If confirmation of EV identity cannot be achieved according to the minimal requirements of this MISEV2018 publication, other terms such as extracellular particle (EP) might be more appropriate.”limitations[3]
Content tags
content-observations: finding · quantity · variable · definition · key-term — grounded in the full text
finding— “Since consensus has not yet emerged on specific markers of EV subtypes, such as endosome-origin “exosomes” and plasma membrane-derived “ectosomes” (microparticles/microvesicles) [ 3 , 4 ] assigning an EV to a particular biogenesis pathway remains extraordinarily difficult unless, e.g. the EV is caught in the act of release by live imaging…content_tags.findings[0]
finding— “in the place of terms such as exosome and microvesicle that are historically burdened by both manifold, contradictory definitions and inaccurate expectations of unique biogenesis.”content_tags.findings[1]
finding— “physical characteristics of EVs, such as size (“small EVs” (sEVs) and “medium/large EVs” (m/lEVs), with ranges defined, for instance, respectively, < 100nm or < 200nm [small], or > 200nm [large and/or medium]) or density (low, middle, high, with each range defined)”content_tags.findings[2]
findingcontent_tags.findings[3]
findingcontent_tags.findings[4]
findingcontent_tags.findings[5]
quantityper cent of MISEV2018 survey respondents endorsed the nomenclature recommendation - the vote to stop using the field's own subtype namescontent_tags.quantities[0]
quantitythe size boundary between `small EVs` and `medium/large EVs`, with each range required to be stated by the authors who use the term
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
content_tags.quantities[1]
variablesize
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
content_tags.variables[0]
variabledensity
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
content_tags.variables[1]
definitionextracellular vesicle
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
content_tags.definitions[0]
definitionoperational terms
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
content_tags.definitions[1]
Concepts
terms this paper carries, each with the sentence it was cut from — the layer that joins one paper to another. Terms with no quote yet are on CONCEPTS.html.
conceptextracellular vesicle — not defined in this paper's own words; the generic term ISEV endorses - released from the cell, bilayer-delimited, unable to replicate
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[0]
conceptoperational terms — not defined in this paper's own words; names built from the measured property rather than the presumed origin - the document's instruction to its field
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[1]
conceptbiogenesis pathway — not defined in this paper's own words; the route of production that the subtype names assert, and which cannot be assigned without catching the vesicle in the act of release
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[2]
conceptsmall EVs — not defined in this paper's own words; an operational size class, under 100 or 200 nm, with the range required to be stated
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[3]
conceptextracellular particle — not defined in this paper's own words; the term to fall back to when EV identity cannot be confirmed - a claim about presence, not about a membrane
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[4]
conceptexosome — not defined in this paper's own words; a biogenesis-based name MISEV2018 asks the field to stop using by default - not because it names nothing, but because it names too many incompatible things and implies an origin the data usually cannot support
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[5]
conceptmicrovesicle — not defined in this paper's own words; the second name retired in the same clause and for the same two reasons: contradictory definitions, and an unearned implication about biogenesis
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
concepts[6]
Statistics — cross-field join keys
field-invariant statistical terms, used in their statistical sense (gated on a number / symbol / test). A p-value or a standard deviation means the SAME thing in physics, biology, psychology and sociology — so these are the strongest cross-field join keys. Grounded verbatim.
Consensus
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
content_tags.statistics[0]
Second readings
a facet read a second time, independently, from its own sentence — and whether the two readings agree
claim typemethod — a second reading reaching the same value; recorded: method
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
alternatives.claim_type
methodconsensus-guideline — a second reading DIFFERING from the recorded value; recorded: expert-consensus
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
alternatives.method
phenomenonextracellular vesicles and the minimal information researchers must report when studying them — a second reading DIFFERING from the recorded value; recorded: particles naturally released from the cell, delimited by a lipid bilayer, that cannot replicate - and whose subcellular
Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher.
alternatives.phenomenon

When we have changed our mind. Some entries in the table begin with a word in capitals and the reason for it. EVIDENCE CORRECTED — the finding still stands, but we had quoted the wrong sentence from the paper, and the quotation has been replaced with the right one. RETRACTED — the entry itself was wrong; it stays on the page, marked, with the reason, rather than being deleted. WITHDRAWN AND REPLACED — the entry was wrong, and a corrected version of it appears in the entries below. Each mark carries its own reason, in brackets, because the reasons differ from one entry to the next. An entry we have WITHDRAWN is removed from this page and kept in the record, with its reason. A line reading Audit and a date is a later re-reading of the entry against its whole sentence: DOUBTFUL means it was kept, and the reason says what is loose about it. Quotation marks inside the tagger's sentence. Where a tag is the tagger's own sentence, a phrase in quotation marks inside it is borrowed from the paper — the tagger's wording around it is not. The paper's own sentence is the evidence quote for that row; on this page it is withheld with the article, and the article is at its publisher. Nothing inside quotation marks anywhere on this page is ours: if it is quoted, it is the paper's. Whose words a concept carries. A concept entry records a term the paper itself uses, so the term, the sense given for it, and its evidence are the paper's own words, quoted where the paper fixes them. This is the opposite of a sense entry in the tag table, which is the tagger's sentence about how the paper uses a term. Where a concept entry could not be grounded in the paper's words, the entry says so on its own row.

Tag layer © the Meta-Tagging Project, CC BY 4.0. The paper text is © its authors/publisher and is linked, not reproduced. Excerpts shown are short quotations for identification and verification. · back to index · concepts · authors · עברית
© 2026 Shir Sivroni · ORCID 0009-0000-2597-2824