Journal
SEMINARS IN THROMBOSIS AND HEMOSTASIS
Volume 30, Issue 5, Pages 537-547Publisher
THIEME MEDICAL PUBL INC
DOI: 10.1055/s-2004-835674
Keywords
platelet dense granules; storage pool deficiency; Hermansky-Pudlak syndrome; lysosome-related organelles; intracellular vesicle formation
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Funding
- Intramural NIH HHS [Z01 HG000215, Z01 HG200322] Funding Source: Medline
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Platelet dense granules form using mechanisms shared by melanosomes in melanocytes and by subsets of lysosomes in more generalized cells. Consequently, disorders of platelet dense granules can reveal how organelles form and move within cells. Models for the study of new vesicle formation include isolated delta-storage pool deficiency, combined alphadelta-storage pool deficiency, Hermansky-Pudlak syndrome (HPS), Chediak-Higashi syndrome, Griscelli syndrome, thrombocytopenia absent radii syndrome, and Wiskott-Aldrich syndrome. The molecular bases of dense granule deficiency are known for the seven subtypes of HPS, as well as for Chediak-Higashi syndrome, Griscelli syndrome, and Wiskott-Aldrich syndrome. The gene products involved in these disorders help elucidate the generalized process of the formation of vesicles from extant membranes such as the Golgi.
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