Cell Structure and Function
Online ISSN : 1347-3700
Print ISSN : 0386-7196
ISSN-L : 0386-7196
REVIEW
Lysosome and Lysosome-related Organelles Responsible for Specialized Functions in Higher Organisms, with Special Emphasis on Vacuolar-type proton ATPase
Ge-Hong Sun-WadaYoh WadaMasamitsu Futai
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JOURNALS FREE ACCESS

2003 Volume 28 Issue 5 Pages 455-463

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Abstract

Mammals contain various cells differentiated in both morphology and function, which play vital roles in tissue-specific functions. Late endosome/lysosome and lysosomal-related organelles are involved in these specialized functions including antigen presentation, bone remodeling and hormone regulation. To fulfill these diverse roles, lysosomes are present at different levels in different tissues and cell types; however, their morphology within these different tissues varies and the regulation of their activities differs with lysosomal compartments in some cells also functioning as secretory compartments. The luminal acidification of these organelles is closely correlated with their functions. This review will discuss the functions of lysosomes and lysosomal-related organelles, with particular emphasis on the major proton pump, the vacuolar-type proton ATPase (V-ATPase), which is responsible for luminal acidification.

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© 2003 by Japan Society for Cell Biology
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