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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Critical Reviews™ in Immunology
Импакт фактор: 1.352 5-летний Импакт фактор: 3.347 SJR: 1.022 SNIP: 0.55 CiteScore™: 2.19

ISSN Печать: 1040-8401
ISSN Онлайн: 2162-6472

Выпуски:
Том 39, 2019 Том 38, 2018 Том 37, 2017 Том 36, 2016 Том 35, 2015 Том 34, 2014 Том 33, 2013 Том 32, 2012 Том 31, 2011 Том 30, 2010 Том 29, 2009 Том 28, 2008 Том 27, 2007 Том 26, 2006 Том 25, 2005 Том 24, 2004 Том 23, 2003 Том 22, 2002 Том 21, 2001 Том 20, 2000 Том 19, 1999 Том 18, 1998 Том 17, 1997 Том 16, 1996 Том 15, 1995 Том 14, 1994

Critical Reviews™ in Immunology

DOI: 10.1615/CritRevImmunol.v29.i3.20
pages 203-217

Exosome Release by Primary B Cells

Alexander McLellan
Department of Microbiology and Immunology, University of Otago, Dunedin, NZ 9054

Краткое описание

Exosomes are subcellular nanoparticles derived from the endosomal pathway. It is now becoming clear that a potential major in vivo source of exosomes is the B cell. Although it has been widely assumed that exosome release is a constitutive activity of most cell types, recent work has emphasized the role of cellular activation in the release of exosomes from primary cells. Like other lymphocytes, B cells undergo extensive cellular physiologic changes during the process of differentiation into effector cells. One newly identified feature of this process is exosome synthesis, which is initiated following the receipt of activation signals, particularly T-cell "help" via CD40 and IL-4 signaling. B-cell-derived exosomes contain immunoglobulin, which traffics antigen bound by the surface B-cell receptor (BCR) into the endosomal/exosomal pathway and finally into the extracellular space. Exosomes have been implicated in viral transmission, cell signaling, and antigen presentation, as well as in the disposal of effete or defective cellular components. However, the possible targets of B-cell-derived exosomes remain unknown. This review focuses on the synthesis and release of exosomes derived from activated and malignant B cells and explores the possible functions of B-cell-derived exosomes in immune function.

Ключевые слова: B cells, CD40, IL-4, exosomes

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