Abstract:
:Calcium signals are crucial for diverse cellular functions including adhesion, differentiation, proliferation, effector functions and gene expression. After engagement of the B cell receptor, the intracellular calcium ion (Ca(2+)) concentration is increased promoting the activation of various signaling cascades. While elevated Ca(2+) in the cytosol initially comes from the endoplasmic reticulum (ER), a continuous influx of extracellular Ca(2+) is required to maintain the increased level of cytosolic Ca(2+). Store-operated Ca(2+) entry manages this process, which is regulated by an ER calcium sensor, stromal interaction molecule (STIM). STIM proteins sense changes in the levels of Ca(2+) stored within the ER lumen and regulates the Ca(2+)-release activated Ca(2+) channel in the plasma membrane. This review focuses on the signaling pathways leading to Ca(2+) influx and the role of Ca(2+) signals in B cell functions.
journal_name
Mol Immunoljournal_title
Molecular immunologyauthors
Baba Y,Matsumoto M,Kurosaki Tdoi
10.1016/j.molimm.2013.10.006subject
Has Abstractpub_date
2014-12-01 00:00:00pages
339-43issue
2eissn
0161-5890issn
1872-9142pii
S0161-5890(13)00532-4journal_volume
62pub_type
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