Astrocytic Vesicle Mobility in Health and Disease

Autor: Nina Vardjan, Matjaž Stenovec, Saša Trkov, Mateja Gabrijel, Jernej Jorgačevski, Marko Kreft, Maja Potokar, Robert Zorec
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: International Journal of Molecular Sciences, Vol 14, Iss 6, Pp 11238-11258 (2013)
International journal of molecular sciences, vol. 14, no. 6, pp. 11238-11258, 2013.
International Journal of Molecular Sciences
ISSN: 1422-0067
1661-6596
Popis: Astrocytes are no longer considered subservient to neurons, and are, instead, now understood to play an active role in brain signaling. The intercellular communication of astrocytes with neurons and other non-neuronal cells involves the exchange of molecules by exocytotic and endocytotic processes through the trafficking of intracellular vesicles. Recent studies of single vesicle mobility in astrocytes have prompted new views of how astrocytes contribute to information processing in nervous tissue. Here, we review the trafficking of several types of membrane-bound vesicles that are specifically involved in the processes of (i) intercellular communication by gliotransmitters (glutamate, adenosine 5'-triphosphate, atrial natriuretic peptide), (ii) plasma membrane exchange of transporters and receptors (EAAT2, MHC-II), and (iii) the involvement of vesicle mobility carrying aquaporins (AQP4) in water homeostasis. The properties of vesicle traffic in astrocytes are discussed in respect to networking with neighboring cells in physiologic and pathologic conditions, such as amyotrophic lateral sclerosis, multiple sclerosis, and states in which astrocytes contribute to neuroinflammatory conditions.
Databáze: OpenAIRE