Abstract:
:There is sufficient evidence to suggest that tumor growth elicits specific immune responses, including CD8(+) and CD4(+) T cell responses that may delay tumor growth and could potentially be harnessed to eradicate cancer. Nevertheless the frequent outcome of cancer is lethality associated with uncontrolled growth and dissemination of tumor cells. The failure of the immune response may be naturally programmed and related to a specific subpopulation of CD4(+)CD25(+) regulatory T cells, whose function is to protect us against autoimmunity. Recent investigations have shed light on the in vivo behavior and functions of these cells. It is becoming evident that a major impact of these cells is on the cytolytic action of specific CD8(+) T cells that target the tumor. Inhibition of cytotoxicity is dependent on TGF-beta signaling by the effector cells. Thus, targeting immune regulation may provide a promising approach to the immune therapy of cancer. This approach however could also have unexpected deleterious consequences, as surprising new observations indicate that regulatory T cells can also delay tumor growth by independent mechanisms that relate to their cross talk with the innate immune response to cancer.
journal_name
Semin Cancer Bioljournal_title
Seminars in cancer biologyauthors
Khazaie K,von Boehmer Hdoi
10.1016/j.semcancer.2005.11.006keywords:
subject
Has Abstractpub_date
2006-04-01 00:00:00pages
124-36issue
2eissn
1044-579Xissn
1096-3650pii
S1044-579X(05)00076-3journal_volume
16pub_type
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journal_title:Seminars in cancer biology
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journal_title:Seminars in cancer biology
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journal_title:Seminars in cancer biology
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journal_title:Seminars in cancer biology
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journal_title:Seminars in cancer biology
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journal_title:Seminars in cancer biology
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journal_title:Seminars in cancer biology
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journal_title:Seminars in cancer biology
pub_type: 杂志文章,评审
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