Driving CARs on the uneven road of antigen heterogeneity in solid tumors.

Driving CARs on the uneven road of antigen heterogeneity in solid tumors.
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DOI:
10.1016/j.coi.2018.03.002
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发表时间:
2018-04
影响因子:
7
通讯作者:
Adusumilli PS
Adusumilli PS
中科院分区:
医学2区
文献类型:
--
作者:
Chen N;Li X;Chintala NK;Tano ZE;Adusumilli PS

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Uniform and strong expression of CD19, a cell surface antigen, on cells of B-cell lineage is unique to hematologic malignancies. Tumor-associated antigen (TAA) targets in solid tumors exhibit heterogeneity with regards to intensity and distribution, posing a challenge for chimeric antigen receptor (CAR) T-cell therapy. Novel CAR designs, such as dual TAA-targeted CARs, tandem CARs, and switchable CARs, in conjunction with inhibitory CARs, are being investigated as means to overcome antigen heterogeneity. In addition to heterogeneity in cancer-cell antigen expression, the key determinants for antitumor responses are CAR expression levels and affinity in T cells. Herein, we review CAR T-cell therapy clinical trials for patients with lung or pancreatic cancers, and provide detailed translational strategies to overcome antigen heterogeneity.
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