Abstract:
:Neutrophils have the shortest half-life among circulating leucocytes and rapidly undergo apoptosis in vitro. The homologous Bcl-2 and Bax proteins have opposing effects, with Bcl-2 extending cellular survival and Bax promoting cell death following an apoptotic stimulus. We determined Bcl-2 to Bax expression ratios in peripheral blood lymphocytes, monocytes and granulocytes and related them to the susceptibility of these cells to anti-Fas (anti-CD95)-induced apoptosis. Here, we show that Bax/Bcl-2 ratios are high in granulocytes and relatively low in monocytes and lymphocytes. Furthermore, we show a relation between this ratio in the different leucocyte subsets and their susceptibility to anti-Fas-induced apoptosis, with granulocytes showing the highest susceptibility, followed by monocytes and lymphocytes. It is concluded that the balance between Bcl-2 and Bax forms an apoptotic rheostat, which seems to determine sensitivity to apoptosis.
journal_name
Clin Exp Immunoljournal_title
Clinical and experimental immunologyauthors
Van Der Vliet HJ,Wever PC,Van Diepen FN,Yong SL,Ten Berge IJdoi
10.1111/j.1365-2249.1997.tb08335.xsubject
Has Abstractpub_date
1997-11-01 00:00:00pages
324-8issue
2eissn
0009-9104issn
1365-2249journal_volume
110pub_type
杂志文章abstract::The introduction of 25 mg of a new protein antigen into the diets of mice produced transient increases in PVP clearance which reached a maximum 60 hr after the change of diet and had disappeared by 4 days. At the same time the immune responsiveness to unrelated antigens given parenterally was also raised transiently, ...
journal_title:Clinical and experimental immunology
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journal_title:Clinical and experimental immunology
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abstract::Complement C6 has a common charge polymorphism designated A and B with gene frequencies of 0.65 and 0.35. The probable molecular basis for this is a Glu (C6A) for Ala (C6B) substitution at amino acid position 98, and is detected by digestion with the restriction enzyme Dde I of a polymerase chain reaction (PCR)-amplif...
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journal_title:Clinical and experimental immunology
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