Ursodeoxycholic Acid Platinum(IV) Conjugates as Antiproliferative and Antimetastatic Agents: Remodel the Tumor Microenvironment through Suppressing JAK2/STAT3 Signaling
Yan Chen, Ming Zhang, Zhifang Liu, Ning Zhang, Qingpeng Wang
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引用次数: 0
Abstract
Tumor microenvironment (TME) is a pivotal factor driving the tumor metastasis and leading to the failure of tumor therapy. Here, a series of ursodeoxycholic acid platinum(IV) conjugates with potency in remodeling the TME through suppressing JAK2/STAT3 signaling was developed. A candidate was screened out, which displayed potent antiproliferative and antimetastatic performance both in vitro and in vivo. It displayed superior pharmacokinetic properties compared to cisplatin. Serious DNA injury was induced, and then mitochondria-mediated apoptosis was initiated through the Bcl-2/Bax/Caspase3 pathway. The JAK2/STAT3 and TGF-β1 signaling pathways were remarkably inhibited, and pro-death autophagy was subsequently promoted. The inflammatory and hypoxic TME was suppressed by downregulating COX-2, MMP9, and HIF-1α, which resulted in inhibited angiogenesis in tumors by inhibiting the HIF-1α/VEGFA axis. Additionally, the immunosuppressive TME was reversed by blocking the immune checkpoint PD-L1, further improving the density of CD3+ and CD8+ tumor-infiltrating lymphocytes, and promoting macrophage polarization from M2- to M1-type.
期刊介绍:
The Journal of Medicinal Chemistry is a prestigious biweekly peer-reviewed publication that focuses on the multifaceted field of medicinal chemistry. Since its inception in 1959 as the Journal of Medicinal and Pharmaceutical Chemistry, it has evolved to become a cornerstone in the dissemination of research findings related to the design, synthesis, and development of therapeutic agents.
The Journal of Medicinal Chemistry is recognized for its significant impact in the scientific community, as evidenced by its 2022 impact factor of 7.3. This metric reflects the journal's influence and the importance of its content in shaping the future of drug discovery and development. The journal serves as a vital resource for chemists, pharmacologists, and other researchers interested in the molecular mechanisms of drug action and the optimization of therapeutic compounds.