Abstract:<div>Abstract<p>Elevated numbers of regulatory T cells (Treg) in patient tumors are known to inhibit efficient antitumor T-cell responses. To study the mechanisms controlling tumor rejection, we assessed different mouse models for Treg depletion. In Foxp3DTR knock-in mice, about 99% Treg depletion was achieved, resulting in complete rejection of transplanted HCmel12 melanomas in a CD8<sup>+</sup> T-cell–dependent way. In contrast, about 90% Treg depletion obtained in BAC transgenic Foxp… Show more
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