Miaomiao Ye, Tingxian Liu, Liqing Miao, Huihui Ji, Zhihui Xu, Huihui Wang, Jian'an Zhang, Xueqiong Zhu
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引用次数: 0
Abstract
Background: Cisplatin (DDP) is an efficacious and widely applied chemotherapeutic drug for cervical cancer patients who are diagnosed as metastatic and inoperable, or desiring fertility preservation. Tumor necrosis factor (TNF)-related apoptosis inducing ligand (TRAIL) selectively triggers cancer cells apoptosis by binding to cognate death receptors (DR4 and DR5). Mesenchymal stem cells-derived exosomes (MSCs-Exo) have been regarded as ideal drug carriers on account of their nanoscale, low toxicity, low immunogenicity, high stability, biodegradability, and abundant sources.
Methods: Human chorion-derived mesenchymal stem cells (hCD-MSCs) were isolated by adherent culture method. TRAIL-engineered hCD-MSCs (hCD-MSCsTRAIL) were constructed by lentivirus transfection, and its secreted Exo (hCD-MSCs-ExoTRAIL) were acquired by differential centrifugation and confirmed to overexpress TRAIL by western blotting. Next, nanoscale drug delivery systems (DDP & hCD-MSCs-ExoTRAIL) were fabricated by loading DDP into hCD-MSCs-ExoTRAIL via electroporation. The CCK-8 assay and flow cytometry were conducted to explore the proliferation and apoptosis of cervical cancer cells (SiHa and HeLa), respectively. Cervical cancer-bearing nude mice were constructed to examine the antitumor activity and biosafety of DDP & hCD-MSCs-ExoTRAIL in vivo.
Results: Compared with hCD-MSCs-Exo, hCD-MSCs-ExoTRAIL weakened proliferation and enhanced apoptosis of cervical cancer cells. DDP & hCD-MSCs-ExoTRAIL were proved to retard cervical cancer cell proliferation and propel cell apoptosis more effectively than DDP or hCD-MSCs-ExoTRAIL alone in vitro. In cervical cancer-bearing mice, DDP & hCD-MSCs-ExoTRAIL evidently hampered tumor growth, and its role in inducing apoptosis was mechanistically associated with JNK/p-c-Jun activation and survivin suppression. Moreover, DDP & hCD-MSCs-ExoTRAIL showed favorable biosafety in vivo.
Conclusions: DDP & hCD-MSCs-ExoTRAIL nanoparticles exhibited great promise for cervical cancer treatment as an Exo-based chemo-gene combinational therapy in clinical practice.
期刊介绍：
Stem Cell Research & Therapy serves as a leading platform for translational research in stem cell therapies. This international, peer-reviewed journal publishes high-quality open-access research articles, with a focus on basic, translational, and clinical research in stem cell therapeutics and regenerative therapies. Coverage includes animal models and clinical trials. Additionally, the journal offers reviews, viewpoints, commentaries, and reports.
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