[CML] Shiga toxin 1 induces apoptosis in the human myelogenous leukemia cell line THP-1 by a caspase-8-dependent, tumor necrosis facto

[Rob]

Shiga toxins (Stxs) induce apoptosis in a variety of cell types. Here, we show that Stx1 induces apoptosis in the undifferentiated myelogenous leukemia cell line THP-1 in the absence of tumor necrosis factor alpha (TNF-alpha) or death receptor (TNF receptor or Fas) _expression_. Caspase-8 and -3 inhibitors blocked, and caspase-6 and -9 inhibitors partially blocked, Stx1-induced apoptosis. Stx1 induced the mitochondrial pathway of apoptosis, as activation of caspase-8 triggered the (i) cleavage of Bid, (ii) disruption of mitochondrial membrane potential, and (iii) release of cytochrome c into the cytoplasm.   http://cmlhope.com/?q=node/80 New! Sign up for local CML support group meetings in your local community at http://cml.meetup.com Apply for Commercial Real Estate loans online and submit your deal to dozens of hungry lenders in just minutes. Loan programs for all types of business and commercial real estate. Apply anytime at http://realestatezoo.com CML (Chronic Myelogenous Leukemia Support List) --------------------------------- Part Of CMLHope.Com An International Community Of CML Patients For more information: http://cmlhope.com Post Message: cml@yahoogroups.com Subscribe:  [EMAIL PROTECTED] Unsubscribe:  [EMAIL PROTECTED] Change To No Mail/Web: [EMAIL PROTECTED] Change To Digest: [EMAIL PROTECTED] Change To Email: [EMAIL PROTECTED] List Help: [EMAIL PROTECTED]  CML Group Web Site http://groups.yahoo.com/group/CML YAHOO! GROUPS LINKS  Visit your group "CML" on the web.    To unsubscribe from this group, send an email to:  [EMAIL PROTECTED]    Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.