Relocalization of Cathepsin D and Cytochrome c Early in Apoptosis Revealed by Immunoelectron Microscopy
نویسندگان
چکیده
منابع مشابه
Centrin scaffold in Chlamydomonas reinhardtii revealed by immunoelectron microscopy.
In the flagellate green alga Chlamydomonas reinhardtii the Ca(2+)-binding EF-hand protein centrin is encoded by a single-copy gene. Previous studies have localized the protein to four distinct structures in the flagellar apparatus: the nucleus-basal body connector, the distal connecting fiber, the flagellar transitional region, and the axoneme. To explain the disjunctive distribution of centrin...
متن کاملRegulatory role of cathepsin D in apoptosis.
Cathepsin D (CTSD, EC 3.4.23.5) is well known aspartyl protease. Among different role in cell physiology, a new function of this enzyme is examined. Cathepsin D is an important regulator of apoptotic pathways in cells. It acts at different stage of intrinsic and extrinsic pathway of apoptosis. Cathepsin D can either induce apoptosis in presence of cytotoxic factors, but in certain studies an in...
متن کاملLocalization of the low-Mr subunit of cytochrome b558 in human blood phagocytes by immunoelectron microscopy.
Cytochrome b558 is a membrane-bound component of the NADPH-oxidase system in phagocytes and consists of a low-Mr subunit of 22 to 23 Kd and a high-Mr subunit of 75 to 90 Kd. The present study on the subcellular localization of the low Mr subunit of cytochrome b558 (p22-phox) in resting human peripheral blood phagocytes was based on immunogold labeling with monoclonal antibody (MoAb) 449, recent...
متن کاملNuage Components and Their Contents in Mammalian Spermatogenic Cells, as Revealed by Immunoelectron Microscopy
The nuage is a germ cell-specific organelle that has been studied for more than a hundred years. It was first discovered in spermatogenic cells as a perinuclear granule stained by basic dyes and visualized using a light microscope. Morphological studies using electron microscopes demonstrated that ”chromatoid body (CB)” is a nuage component in spermatids, and that “inter-mitochondrial cement (I...
متن کاملInvolvement of cathepsin D in chemotherapy-induced cytochrome c release, caspase activation, and cell death.
Treatment of cells with chemotherapy drugs activates the intrinsic mitochondrial pathway of apoptosis and the caspase protease cascade. Recently, the lysosomal protease cathepsin D has been implicated in apoptosis caused by oxidative stress, inhibition of protein kinase C, and stimulation of the TNFR1 and Fas death receptors. However, the role of cathepsin D in chemotherapy-induced cell death h...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Laboratory Investigation
سال: 2001
ISSN: 0023-6837,1530-0307
DOI: 10.1038/labinvest.3780222