Chimeric antigen receptor T cell denoted as CAR-T therapy has realized incredible therapeutic advancements for B cell malignancy ***,its therapeutic validity has yet to be successfully achieved in solid *** from hemat...
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Chimeric antigen receptor T cell denoted as CAR-T therapy has realized incredible therapeutic advancements for B cell malignancy ***,its therapeutic validity has yet to be successfully achieved in solid *** from hematological cancers,solid tumors are characterized by dysregulated blood vessels,dense extracellular matrix,and filled with immunosuppressive signals,which together result in CAR-T cells’insufficient infiltration and rapid *** insufficient recognition of tumor cells and tumor heterogeneity eventually causes cancer *** addition,CAR-T therapy also raises safety concerns,including potential cytokine release storm,on-target/off-tumor toxicities,and neuro-system side *** we comprehensively review various targeting aspects,including CAR-T cell design,tumor modulation,and delivery *** believe it is essential to rationally design a combinatory CAR-T therapy via constructing optimized CAR-T cells,directly manipulating tumor tissue microenvironments,and selecting the most suitable delivery strategy to achieve the optimal outcome in both safety and efficacy.
Mesenchymal stromal cells(MSCs) are adult multipotent stem cells residing as pericytes in various tissues and organs where they can differentiate into specialized cells to replace dying cells and damaged tissues. Thes...
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Mesenchymal stromal cells(MSCs) are adult multipotent stem cells residing as pericytes in various tissues and organs where they can differentiate into specialized cells to replace dying cells and damaged tissues. These cells are commonly found at injury sites and in tumors that are known to behave like "wounds that do not heal." In this article, we discuss the mechanisms of MSCs in migrating, homing, and repairing injured tissues. We also review a number of reports showing that tumor microenvironment triggers plasticity mechanisms in MSCs to induce malignant neoplastic tissue formation, maintenance, and chemoresistance, as well as tumor growth. The antitumor properties and therapeutic potential of MSCs are also discussed.
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