9 results on '"Dongcai Ye"'
Search Results
2. [Mn(PaPy2Q)(NO)]ClO4, a Near-Infrared Light activated release of Nitric Oxide drug as a nitric oxide donor for therapy of human prostate cancer cells in vitro and in vivo
- Author
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Yuwan Zhao, Zhuo Li, Huancheng Tang, Shanhong Lin, Wenfeng Zeng, Dongcai Ye, Xin Zeng, Qiuming Luo, Jianwei Li, Zhixian Ao, Jierong Mo, Lixin Chen, Yiqiu Yang, Yunsheng Huang, and Jianjun Liu
- Subjects
Prostate cancer ,NO prodrug ,Near-infrared light sensitive ,Nude mouse xenograft ,Therapeutics. Pharmacology ,RM1-950 - Abstract
This study was the first to investigate the synthesis of near-infrared light-sensitive NO prodrug [Mn(PaPy2Q)(NO)]ClO4, and detection the amount of NO released by the drug in different time and near infrared light (10 mW, 20 mW). It showed that with the increase of light power, the time required for the drug to release NO was shortened, and we selected 20 mW, 10 min as a follow-up study of light power and irradiation time while ensuring the near-infrared light did not affect tumor cells. The cells were irradiated with 20 mW of near-infrared light for 10 min at 6 h after treatment with the drug on PC-3, LNCaP and 22RV1 cells, and NO concentration and cell survival rate were tested at 12 h, 24 h and 48 h. Experiments showed that NO concentration remained stable within 48 h and [Mn(PaPy2Q)(NO)]ClO4 inhibited the proliferation of cells in a concentration and time-dependent manner. Then we also found that [Mn(PaPy2Q)(NO)]ClO4 increased the expression of apoptosis-related proteins (PARP, Bax, Caspase 3/9), inhibited the expression of BCl-2 and increased the activity level of Caspase 3/7, which showed [Mn(PaPy2Q)(NO)]ClO4 promoted prostate cancer cells apoptosis. Next, the results in xenograft mouse model showed that [Mn(PaPy2Q)(NO)]ClO4 also had anti-prostate cancer effects in vivo, and the NO concentration increased in the tumor after near-infrared light irradiation. After [Mn(PaPy2Q)(NO)]ClO4 treatment 6 weeks, tumor volume was significantly reduced, Ki67 and BrdU protein expression was significantly reduced. TUNEL assay results showed that [Mn(PaPy2Q)(NO)]ClO4 could promote the apoptosis of solid tumors in vivo and in a concentration-dependent manner.
- Published
- 2021
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3. Metformin in combination with JS-K inhibits growth of renal cell carcinoma cells via reactive oxygen species activation and inducing DNA breaks
- Author
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Qiuming Luo, Zhixian Ao, Dongcai Ye, Jianjun Liu, Jianwei Li, Yuwan Zhao, Lixin Chen, and Jierong Mo
- Subjects
0301 basic medicine ,renal cell carcinoma ,DNA damage ,Nitric oxide ,Flow cytometry ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,medicine ,DNA breaks ,chemistry.chemical_classification ,Reactive oxygen species ,biology ,medicine.diagnostic_test ,JS-K ,Cell growth ,ROS ,Molecular biology ,Proliferating cell nuclear antigen ,Blot ,030104 developmental biology ,Oncology ,chemistry ,Apoptosis ,030220 oncology & carcinogenesis ,biology.protein ,metformin ,Research Paper - Abstract
Metformin (MET) is taken as a principal medication for remedying Type 2 diabetes mellitus. Its anti-tumor effect has been reported increasingly, but the precise mechanism of it remains unclear. This study aims to explore the efficacy of MET and MET combined with nitric oxide donor prodrug JS-K on the proliferation, apoptosis, and DNA damage in human renal cell carcinoma (RCC) cells, and investigate the possible molecular mechanism involved. The cell proliferation was tested through methyl-tetrazolium assay and cell apoptosis was ascertained by flow cytometry. The dihydroethidium and JC-1 fluorescent methods were used to detect Reactive oxygen species (ROS) and mitochondrial transmembrane potential (Δψm), respectively. Proteins associated with apoptosis and DNA damage were evaluated by Western blotting. Results showed that MET and JS-K could suppress cell growth, and the inhibition concentration 50 of treatment with MET combined with JS-K (MET + JS-K) showed more toxicity than individual agents on RCC cells. This augmented toxicity was associated with intracellular reactive oxygen species (ROS) level, mitochondrial membrane potential alteration, and induced DNA breaks. The results of Western blotting showed that the expression level of pro-apoptotic proteins, such as Bax, Bak, caspase-3, and caspase-9, was up-regulated, and the anti-apoptotic protein Bcl-2 was down-regulated after treatment using MET alone and MET + JS-K, correspondingly. Moreover, MET + JS-K inhibited the expression of cellular PCNA and Rad51, and immunofluorescence analysis of γH2AX proved that MET + JS-K enhanced DNA damage. In summary, the results of this research indicated that MET and JS-K inhibited RCC cell growth by activating ROS, targeting mitochondria-dependent apoptotic pathways, and inducing DNA breaks.
- Published
- 2020
4. [Mn(PaPy2Q)(NO)]ClO4, a Near-Infrared Light activated release of Nitric Oxide drug as a nitric oxide donor for therapy of human prostate cancer cells in vitro and in vivo
- Author
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Zhuo Li, Wenfeng Zeng, Yiqiu Yang, Jianwei Li, Xin Zeng, Huancheng Tang, Yuwan Zhao, Yun-Sheng Huang, Shanhong Lin, Zhixian Ao, Jianjun Liu, Dongcai Ye, Lixin Chen, Qiuming Luo, and Jierong Mo
- Subjects
0301 basic medicine ,Pharmacology ,Prostate cancer ,Poly ADP ribose polymerase ,Caspase 3 ,General Medicine ,RM1-950 ,Prodrug ,Molecular biology ,Nitric oxide ,03 medical and health sciences ,chemistry.chemical_compound ,030104 developmental biology ,0302 clinical medicine ,chemistry ,Apoptosis ,In vivo ,Nude mouse xenograft ,030220 oncology & carcinogenesis ,LNCaP ,Cancer cell ,NO prodrug ,Therapeutics. Pharmacology ,Near-infrared light sensitive - Abstract
This study was the first to investigate the synthesis of near-infrared light-sensitive NO prodrug [Mn(PaPy2Q)(NO)]ClO4, and detection the amount of NO released by the drug in different time and near infrared light (10 mW, 20 mW). It showed that with the increase of light power, the time required for the drug to release NO was shortened, and we selected 20 mW, 10 min as a follow-up study of light power and irradiation time while ensuring the near-infrared light did not affect tumor cells. The cells were irradiated with 20 mW of near-infrared light for 10 min at 6 h after treatment with the drug on PC-3, LNCaP and 22RV1 cells, and NO concentration and cell survival rate were tested at 12 h, 24 h and 48 h. Experiments showed that NO concentration remained stable within 48 h and [Mn(PaPy2Q)(NO)]ClO4 inhibited the proliferation of cells in a concentration and time-dependent manner. Then we also found that [Mn(PaPy2Q)(NO)]ClO4 increased the expression of apoptosis-related proteins (PARP, Bax, Caspase 3/9), inhibited the expression of BCl-2 and increased the activity level of Caspase 3/7, which showed [Mn(PaPy2Q)(NO)]ClO4 promoted prostate cancer cells apoptosis. Next, the results in xenograft mouse model showed that [Mn(PaPy2Q)(NO)]ClO4 also had anti-prostate cancer effects in vivo, and the NO concentration increased in the tumor after near-infrared light irradiation. After [Mn(PaPy2Q)(NO)]ClO4 treatment 6 weeks, tumor volume was significantly reduced, Ki67 and BrdU protein expression was significantly reduced. TUNEL assay results showed that [Mn(PaPy2Q)(NO)]ClO4 could promote the apoptosis of solid tumors in vivo and in a concentration-dependent manner.
- Published
- 2021
5. [Mn(PaPy2Q)(NO)]ClO
- Author
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Yuwan, Zhao, Zhuo, Li, Huancheng, Tang, Shanhong, Lin, Wenfeng, Zeng, Dongcai, Ye, Xin, Zeng, Qiuming, Luo, Jianwei, Li, Zhixian, Ao, Jierong, Mo, Lixin, Chen, Yiqiu, Yang, Yunsheng, Huang, and Jianjun, Liu
- Subjects
Male ,Antimetabolites ,Cell Survival ,Infrared Rays ,Prostatic Neoplasms ,Antineoplastic Agents ,Nitric Oxide ,Xenograft Model Antitumor Assays ,Mice ,Ki-67 Antigen ,Bromodeoxyuridine ,Cell Line, Tumor ,Animals ,Humans ,Nitric Oxide Donors ,Prodrugs ,Apoptosis Regulatory Proteins - Abstract
This study was the first to investigate the synthesis of near-infrared light-sensitive NO prodrug [Mn(PaPy2Q)(NO)]ClO
- Published
- 2020
6. Pterostilbene Inhibits Human Renal Cell Carcinoma Cells Growth and Induces DNA Damage
- Author
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Qiuming Luo, Dongcai Ye, Yuwan Zhao, Jianwei Li, and Jianjun Liu
- Subjects
0301 basic medicine ,Cell Survival ,MAP Kinase Signaling System ,Pharmaceutical Science ,Apoptosis ,urologic and male genital diseases ,Cell morphology ,03 medical and health sciences ,0302 clinical medicine ,Cell Line, Tumor ,Stilbenes ,Humans ,Viability assay ,Protein kinase B ,Carcinoma, Renal Cell ,Cell Proliferation ,Pharmacology ,biology ,Chemistry ,Caspase 3 ,Cell Cycle ,General Medicine ,Cell Cycle Checkpoints ,Cell cycle ,Antineoplastic Agents, Phytogenic ,Caspase 9 ,Proliferating cell nuclear antigen ,030104 developmental biology ,Cell culture ,030220 oncology & carcinogenesis ,Cancer cell ,Cancer research ,biology.protein ,Proto-Oncogene Proteins c-akt ,DNA Damage ,Signal Transduction - Abstract
Pterostilbene (PTE) has inhibitory effect on a wide array of tumors. However, the therapeutic potential of PTE in renal cancer cells and the underlying mechanisms have not been evaluated. In this study, the aim is to demonstrate the growth inhibitory and the underlying mechanisms of PTE on human renal cell carcinoma (RCC) cells in vitro. By cell viability, cell morphology and colony formation assays, we found that PTE significantly suppressed the proliferation of RCC cells, while had little toxicity to the normal renal cell line HK-2. Flow cytometry assay revealed that PTE potently induced the apoptosis of RCC cells in a concentration-dependent manner, which was also testified by up-regulation of the pro-apoptosis-related protein (Cyto C, Bad, Bak, Bax, Cleaved-caspase 3, Cleaved-caspase 9, Cleaved-poly(ADP-ribose)polymerase (PARP)) and down-regulation of the anti-apoptosis-related protein Bcl-2. Moreover, cell cycle being arrested in S phase and down-regulation of p-Akt and p-extracellular signal-regulated kinase (ERK)1/2 were observed following treatment with PTE in RCC cells, indicating that PTE exerted remarkable anti-tumor activity in RCC cells possibly via cell cycle arrest and inactivation of Akt and ERK1/2 signaling pathways. Immunofluorescence analysis of γH2AX and detecting the expression levels of γH2AX, proliferating cell nuclear antigen (PCNA) and Rad51 by Western blot showed that PTE induced the DNA damages response in RCC cells. Taken together, the results of the present study demonstrated that PTE was a potential preventive and therapeutic agent for human renal cell carcinoma.
- Published
- 2020
7. Metformin in combination with JS-K inhibits growth of renal cell carcinoma cells via reactive oxygen species activation and inducing DNA breaks: Erratum
- Author
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Yuwan Zhao, Qiuming Luo, Jierong Mo, Jianwei Li, Dongcai Ye, Zhixian Ao, Lixin Chen, and Jianjun Liu
- Subjects
Oncology - Published
- 2022
8. Combination of metformin and paclitaxel suppresses proliferation and induces apoptosis of human prostate cancer cells via oxidative stress and targeting the mitochondria-dependent pathway
- Author
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Dongcai Ye, Jianjun Liu, Huancheng Tang, Yuwan Zhao, and Xin Zeng
- Subjects
reactive oxygen species ,0301 basic medicine ,Cancer Research ,Cell growth ,apoptosis ,Articles ,Mitochondrion ,prostate cancer ,paclitaxel ,03 medical and health sciences ,chemistry.chemical_compound ,030104 developmental biology ,0302 clinical medicine ,Oncology ,chemistry ,Annexin ,Apoptosis ,030220 oncology & carcinogenesis ,Cancer cell ,LNCaP ,Cancer research ,MTT assay ,Propidium iodide ,metformin - Abstract
Previous studies have reported that metformin (MET) has anticancer activity. In combination with chemotherapeutic drugs, MET reduces the dosage of chemotherapeutic drugs required and enhances anticancer efficacy. In the present study, the combination of MET and paclitaxel (PTX) in three human prostate cancer (PCa) cell lines (22RV1, PC-3 and LNCaP) was evaluated to investigate the effects on proliferation and apoptosis of PCa cells. The present study explored whether their effects were associated with reactive oxygen species (ROS). An MTT assay and microscopy were used to study the effect of MET + PTX on cell growth. Half maximal inhibitory concentration (IC50) values were obtained for MET (12.281±1.089 mM for 22RV1, 2.248±0.352 mM for PC-3 cells and 3.610±0.577 mM for LNCaP cells) and PTX (13.170±1.12 nM for PC-3 cells) at 48 h. Since the survival rate of 22RV1 and LNCaP cells did not decrease linearly with increasing PTX concentration, it is difficult to estimate accurate IC50; therefore, only IC50 values for PTX in PC-3 cells were given. When treating the cells with 5 mM MET, the IC50 of PTX decreased to 5.423±0.734 nM for PC-3 cells. Annexin V and propidium iodide staining was used to investigate apoptosis by flow cytometry. The apoptotic mechanisms of MET + PTX in PCa were investigated by detecting the expression of apoptosis-related proteins, activities of caspase-3/7, intracellular ROS accumulation, mitochondrial membrane potential, and intracellular levels of adenosine 5′-triphosphate (ATP). MET + PTX induced PCa apoptosis and ROS accumulation, and decreased mitochondrial membrane potential and intracellular levels of ATP. Taken together, these results indicated that MET + PTX suppressed PCa cell proliferation in a dose- and time-dependent manner. In addition, MET + PTX induced apoptosis by increasing ROS levels, reducing mitochondrial membrane potential, and activating mitochondrial-dependent apoptotic pathways.
- Published
- 2018
9. Resveratrol inhibits proliferation, migration and invasion via Akt and ERK1/2 signaling pathways in renal cell carcinoma cells
- Author
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Dongcai Ye, Yuwan Zhao, Xin Zeng, Jianjun Liu, and Huancheng Tang
- Subjects
0301 basic medicine ,MAP Kinase Signaling System ,Vimentin ,Resveratrol ,Cell morphology ,Cell Line ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Cell Movement ,Cell Line, Tumor ,Stilbenes ,Humans ,Neoplasm Invasiveness ,Protein kinase B ,Carcinoma, Renal Cell ,Cell Proliferation ,Pharmacology ,biology ,Cell growth ,Chemistry ,General Medicine ,Cadherins ,Kidney Neoplasms ,Gene Expression Regulation, Neoplastic ,030104 developmental biology ,Matrix Metalloproteinase 9 ,Cell culture ,030220 oncology & carcinogenesis ,Cancer cell ,Cancer research ,biology.protein ,Matrix Metalloproteinase 2 ,Signal transduction ,Proto-Oncogene Proteins c-akt ,Signal Transduction - Abstract
Recent studies have shown that resveratrol (RES) inhibits cancer cell growth, migration and invasion. Here, we evaluated RES in two human renal cell carcinoma (RCC) cell lines, ACHN and A498. We investigated the effects of RES on proliferation, cell morphology, colony formation, migration, and invasion. We used a proliferation assay to demonstrate that RES inhibited cell growth with IC50 values 132.9±1.064μM in ACHN, and 112.8±1.191μM in A498, respectively. Using inverted contrast microscopy, we showed that RES reduced cell-to-cell contact and inhibited formation of filopodia. A wound healing assay showed that RES inhibited migration of RCC cells. A Transwell assay showed that RES inhibited RCC migration and invasion. Western blot analysis showed that RES suppresses expression of N-cadherin, Vimentin, Snail, MMP-2, MMP-9, p-Akt and p-ERK1/2, but increased expression of E-cadherin and TIMP-1. In the presence of PD98059, the inhibitor of ERK1/2 pathway, we repeated all of the above experiments, showed that RES acted via the ERK1/2 pathway. Taken together, our results suggested that RES suppressed RCC cell proliferation, migration, and invasion in a concentration- and time-dependent manner. These effects likely resulted from inactivation of the Akt and ERK1/2 signaling pathways.
- Published
- 2017
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