T Regulatory Cells in B-Cell Malignancy : Tumor Support or Kiss of Death?

• It is well established that T regulatory cells (Tregs) counteract tumor immunity. However, conflicting results describing the role of Tregs in hematological tumors warrant further investigations to clarify the interactions between Tregs and the tumor. B-cell malignancy derives from different stages of B-cell development and differentiation in which T-cells play a profound role. The transformed B-cell may still be in need of T-cell help to thrive but simultaneously they may be recognized and destroyed by cytotoxic lymphocytes. Recent reports demonstrate that Tregs can suppress and even kill B-cells as part of their normal function to rescue the body from autoimmunity. An emerging body of evidence points out that Tregs inhibit tumor-specific T-cells but may also have a role in suppressing the progression of the B-cell tumor. In this review, we discuss the origin and function of Tregs and their role in patients with B-cell tumors.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Hematologi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Hematology (hsv//eng)

Nyckelord

B-cell leukaemia

B-cell lymphoma

cytotoxic regulatory cells

immune regulation

T regulatory cells

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