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Choi EM, Park SY, Suh KS, Chon S. Apigenin attenuates tetrabromobisphenol A-induced cytotoxicity in neuronal SK-N-MC cells. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2023; 58:152-162. [PMID: 36843298 DOI: 10.1080/10934529.2023.2182581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Tetrabromobisphenol A (TBBPA) is a reactive brominated flame retardant widely used in various industrial and household products. This compound is persistent in the environment and accumulates in living organisms through the food chain, and is toxic to animals and human beings. Studies have shown that TBBPA is toxic to various human cell lines, including neuronal cells. Apigenin is a dietary flavonoid that exhibits various beneficial health effects on biological activities, including antioxidant, anti-inflammatory, and neuroprotective effects. This study investigated the cytoprotective effects of apigenin against TBBPA-mediated cytotoxicity in SK-N-MC cells. Our results demonstrated that treatment of SK-N-MC cells with apigenin increased the cell viability, which was decreased by TBBPA, and reduced apoptosis and autophagy induced by TBBPA. Although we did not observe any change in the levels of IL-1β and nitrite in cultured cells after TBBPA treatment, apigenin was found to decrease the production of these pro-inflammatory mediators. Apigenin decreased the intracellular Ca2+ concentration, NOX4 level, oxidative stress, and mitochondrial membrane potential loss and increased the mitochondrial biogenesis and nuclear Nrf2 levels that were reduced by TBBPA. Finally, apigenin treatment decreased Akt and ERK induction in cells exposed to TBBPA. Based on these results, apigenin could be a promising candidate for designing natural drugs to treat or prevent TBBPA-related neurological disorders.
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Affiliation(s)
- Eun Mi Choi
- Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - So Young Park
- Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
- Department of Endocrinology & Metabolism, Kyung Hee University Hospital, Seoul, Republic of Korea
| | - Kwang Sik Suh
- Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Suk Chon
- Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
- Department of Endocrinology & Metabolism, Kyung Hee University Hospital, Seoul, Republic of Korea
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2
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Long non-coding RNA NUT family member 2A-antisense RNA 1 sponges microRNA-613 to increase the resistance of gastric cancer cells to matrine through regulating oxidative stress and vascular endothelial growth factor A. Aging (Albany NY) 2022; 14:5153-5162. [PMID: 35771149 PMCID: PMC9271296 DOI: 10.18632/aging.204135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/14/2022] [Indexed: 12/12/2022]
Abstract
Matrine has been shown to play a role in the suppression of gastric cancer (GC) tumorigenesis. However, whether long non-coding RNA NUT family member 2A-antisense RNA 1 (NUTM2A-AS1) is involved in matrine-induced inhibition of GC remains unknown. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, cell colony formation, and terminal deoxynucleotidyl transferase dUTP nick-end labeling assays were employed to determine the proliferation, viability, and apoptosis of GC cells, respectively. The Cancer Genome Atlas database suggested an association between NUTM2A-AS1 and GC. The reverse transcription-quantitative polymerase chain reaction was used to quantify relative levels of NUTM2A-AS1, miR-613, and vascular endothelial growth factor A (VEGFA). Reactive oxygen species generation, glutathione content, and superoxide dismutase activity were determined by corresponding reagents or assay kits. NUTM2A-AS1 knockdown led to attenuated cell viability and proliferation, as well as to enhanced apoptosis of N87 and AGS cells treated with matrine. These changes were prevented by an inhibitor of microRNA (miR)-613. Importantly, NUTM2A-AS1 expression was positively associated with tumor progression in patients with GC. NUTM2A-AS1 and miR-613 regulated the generation of reactive oxygen species, the content of glutathione, and the activity of superoxide dismutase. VEGFA served as an important effector for the NUTM2A-AS1/miR-613-regulated resistance of GC cells to matrine. These results reveal a novel mechanism of matrine resistance in GC.
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Maurici CE, Colenbier R, Wylleman B, Brancato L, van Zwol E, Van den Bossche J, Timmermans JP, Giovannetti E, Mori da Cunha MGMC, Bogers J. Hyperthermia Enhances Efficacy of Chemotherapeutic Agents in Pancreatic Cancer Cell Lines. Biomolecules 2022; 12:651. [PMID: 35625581 PMCID: PMC9138677 DOI: 10.3390/biom12050651] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/21/2022] [Accepted: 04/26/2022] [Indexed: 02/01/2023] Open
Abstract
Chemotherapy (CT) is the standard care for advanced pancreatic ductal adenocarcinoma (PDAC); however, with limited efficacy. Hyperthermia (HT) treatment has been suggested as a sensitizer to improve outcomes. However, the direct effect of the HT and CT combination is not fully understood. Therefore, we aim to assess the direct cytotoxic effect of HT in PDAC cells as monotherapy or in combination with chemotherapeutics. Different temperatures (37-, 40.5-, 41-, and 41.5 °C) and durations (6-, 12-, and 24 h) were tested in PDAC cell lines (BxPC-3, Capan-1, Capan-2, PANC-1, and MIA-PaCa-2). Different concentrations of gemcitabine, 5-fluorouracil, and cisplatin were also tested in these conditions. The impact on cell metabolic activity was determined by an MTS assay. Enhancement of chemosensitivity was assessed by a reduction in half-maximal inhibitory concentration (IC50). HT and chemotherapeutics interactions were classified as antagonistic, additive, or synergistic using the combination index. HT inhibited cell proliferation in a cell type, temperature, and duration-dependent manner. The induction of apoptosis was seen after 6 h of HT treatment, eventually followed by secondary necrosis. The HT and CT combination led to an IC50 reduction of the tested CT. At 12 h of HT, this effect was between 25 to 90% and reached a 95% reduction at 24 h. The additive or synergistic effect was demonstrated in all cell lines and chemotherapeutics, although, again, this depended on cell type, duration, and temperature. HT is cytotoxic and enhances the therapeutic effectiveness of gemcitabine, 5-fluorouracil, and cisplatin on PDAC cells. This result was further confirmed by the decrease in the expression of RRM2, TS, and ERCC1 in BxPC-3 and Capan-2 cells. These observations warrant further study in specific subsets of PDAC patients to improve their clinical outcomes.
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Affiliation(s)
- Costanza E. Maurici
- ElmediX NV, 2800 Mechelen, Belgium; (C.E.M.); (B.W.); (L.B.); (E.v.Z.); (J.V.d.B.); (M.G.M.C.M.d.C.)
| | - Robin Colenbier
- Laboratory of Cell Biology and Histology, Faculty of Medicine and Health Sciences, University of Antwerp, 2610 Antwerp, Belgium; (R.C.); (J.-P.T.)
- Cancer Center Amsterdam, Department of Medical Oncology, Amsterdam UMC, 1006 Amsterdam, The Netherlands;
| | - Britta Wylleman
- ElmediX NV, 2800 Mechelen, Belgium; (C.E.M.); (B.W.); (L.B.); (E.v.Z.); (J.V.d.B.); (M.G.M.C.M.d.C.)
| | - Luigi Brancato
- ElmediX NV, 2800 Mechelen, Belgium; (C.E.M.); (B.W.); (L.B.); (E.v.Z.); (J.V.d.B.); (M.G.M.C.M.d.C.)
| | - Eke van Zwol
- ElmediX NV, 2800 Mechelen, Belgium; (C.E.M.); (B.W.); (L.B.); (E.v.Z.); (J.V.d.B.); (M.G.M.C.M.d.C.)
| | - Johan Van den Bossche
- ElmediX NV, 2800 Mechelen, Belgium; (C.E.M.); (B.W.); (L.B.); (E.v.Z.); (J.V.d.B.); (M.G.M.C.M.d.C.)
| | - Jean-Pierre Timmermans
- Laboratory of Cell Biology and Histology, Faculty of Medicine and Health Sciences, University of Antwerp, 2610 Antwerp, Belgium; (R.C.); (J.-P.T.)
| | - Elisa Giovannetti
- Cancer Center Amsterdam, Department of Medical Oncology, Amsterdam UMC, 1006 Amsterdam, The Netherlands;
- Cancer Pharmacology Lab, Fondazione Pisana per la Scienza, 56017 Pisa, Italy
| | | | - Johannes Bogers
- ElmediX NV, 2800 Mechelen, Belgium; (C.E.M.); (B.W.); (L.B.); (E.v.Z.); (J.V.d.B.); (M.G.M.C.M.d.C.)
- Laboratory of Cell Biology and Histology, Faculty of Medicine and Health Sciences, University of Antwerp, 2610 Antwerp, Belgium; (R.C.); (J.-P.T.)
- Applied Molecular Biology Research Group (AMBIOR), University of Antwerp, 2610 Antwerp, Belgium
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Shi F, Luo D, Zhou X, Sun Q, Shen P, Wang S. Combined effects of hyperthermia and chemotherapy on the regulate autophagy of oral squamous cell carcinoma cells under a hypoxic microenvironment. Cell Death Dis 2021; 7:227. [PMID: 34465721 PMCID: PMC8408236 DOI: 10.1038/s41420-021-00538-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/24/2021] [Accepted: 05/29/2021] [Indexed: 02/07/2023]
Abstract
Autophagy has a complex dual role in tumor survival or cell death owning to that is an evolutionarily conserved catabolic mechanism and provides the cells with a sustainable source of biomolecules and energy for the maintenance of homeostasis under stressful conditions such as tumor microenvironment. Hyperthermia is a rapidly growing field in cancer therapy and many advances have been made in understanding and applying the mechanisms of hyperthermia. The shallow oral and maxillofacial position and its abundant blood supply are favorable for the use of hyperthermia. However, the relationship between hyperthermia and autophagy has not been examined of oral squamous cell carcinoma (OSCC) in the tumor hypoxia microenvironment. Here, the expression level of autophagy relative genes is examined to explore autophagy effect on the responses of hyperthermia, hypoxia, and innutrition tumor microenvironment. It is founded that hyperthermia and hypoxia cause autophagy in starvation conditions; further, in hypoxia and innutrition tumor microenvironment, hyperthermia combines YC-1 and 3-MA could inhibit HIF-1α/BNIP3/Beclin1 signal pathway and decrease the secretion of HMGB1; moreover, the cell apoptosis rate increases with an inhibited of cell migration capacity. Thus, the present study demonstrated that combined use of YC-1 and 3-MA might increase the death of tumor cells in physiological and hyperthermic conditions, which could be relevant with the inhibition of autophagy in OSCC tumor cells under hypoxia microenvironment in vitro, which offers new insight into the therapy of OSCC and its application in treating others study carcinomas.
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Affiliation(s)
- Fan Shi
- grid.410645.20000 0001 0455 0905School of Stomatology of Qingdao University, Qingdao, China ,grid.440323.2Department of Oral and Maxillofacial Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Dan Luo
- grid.410645.20000 0001 0455 0905School of Stomatology of Qingdao University, Qingdao, China ,grid.440323.2Department of Oral and Maxillofacial Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Xuexiao Zhou
- grid.410645.20000 0001 0455 0905School of Stomatology of Qingdao University, Qingdao, China ,grid.440323.2Department of Oral and Maxillofacial Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Qiaozhen Sun
- grid.410645.20000 0001 0455 0905School of Stomatology of Qingdao University, Qingdao, China ,grid.440323.2Department of Oral and Maxillofacial Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Pei Shen
- grid.410645.20000 0001 0455 0905School of Stomatology of Qingdao University, Qingdao, China ,grid.440323.2Department of Oral and Maxillofacial Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Shengzhi Wang
- grid.440323.2Department of Oral and Maxillofacial Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China ,grid.412521.1Institute for Translational Medicine, Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao, China
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PPARδ is a regulator of autophagy by its phosphorylation. Oncogene 2020; 39:4844-4853. [PMID: 32439863 DOI: 10.1038/s41388-020-1329-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 02/06/2023]
Abstract
In response to nutrient deficiency, autophagy degrades cytoplasmic materials and organelles in lysosomes, which is nutrient recycling, whereas activation of EGFR mediates autophagy suppression in response to growth factors. It is unclear whether PPARδ could be the regulator of autophagy in response to active EGFR. Here we found that EGFR induced PPARδ phosphorylation at tyrosine-108 leading to increased binding of LC3 to PPARδ by its LIR (LC3 interacting region) motif, consequently, inhibited autophagic flux. Conversely, EGFR inhibitor treatment reversed this event. Furthermore, EGFR-mediated PPARδ phosphorylation at tyrosine-108 led to autophagy inhibition and tumor growth. These findings suggest that PPARδ serves as a regulator of autophagy by its phosphorylation.
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Jentsch M, Snyder P, Sheng C, Cristiano E, Loewer A. p53 dynamics in single cells are temperature-sensitive. Sci Rep 2020; 10:1481. [PMID: 32001771 PMCID: PMC6992775 DOI: 10.1038/s41598-020-58267-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 01/13/2020] [Indexed: 12/13/2022] Open
Abstract
Cells need to preserve genome integrity despite varying cellular and physical states. p53, the guardian of the genome, plays a crucial role in the cellular response to DNA damage by triggering cell cycle arrest, apoptosis or senescence. Mutations in p53 or alterations in its regulatory network are major driving forces in tumorigenesis. As multiple studies indicate beneficial effects for hyperthermic treatments during radiation- or chemotherapy of human cancers, we aimed to understand how p53 dynamics after genotoxic stress are modulated by changes in temperature across a physiological relevant range. To this end, we employed a combination of time-resolved live-cell microscopy and computational analysis techniques to characterise the p53 response in thousands of individual cells. Our results demonstrate that p53 dynamics upon ionizing radiation are temperature dependent. In the range of 33 °C to 39 °C, pulsatile p53 dynamics are modulated in their frequency. Above 40 °C, which corresponds to mild hyperthermia in a clinical setting, we observed a reversible phase transition towards sustained hyperaccumulation of p53 disrupting its canonical response to DNA double strand breaks. Moreover, we provide evidence that mild hyperthermia alone is sufficient to induce a p53 response in the absence of genotoxic stress. These insights highlight how the p53-mediated DNA damage response is affected by alterations in the physical state of a cell and how this can be exploited by appropriate timing of combination therapies to increase the efficiency of cancer treatments.
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Affiliation(s)
- Marcel Jentsch
- Department of Biology, Technische Universität Darmstadt, Darmstadt, Germany
| | - Petra Snyder
- Department of Biology, Technische Universität Darmstadt, Darmstadt, Germany
| | - Caibin Sheng
- Department of Biology, Technische Universität Darmstadt, Darmstadt, Germany
- Novartis Institutes for Biomedical Research, Oncology Disease Area, Basel, Switzerland
| | - Elena Cristiano
- Department of Biology, Technische Universität Darmstadt, Darmstadt, Germany
| | - Alexander Loewer
- Department of Biology, Technische Universität Darmstadt, Darmstadt, Germany.
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Chiang CF, Hsu YH, Liu CC, Liang PC, Miaw SC, Lin WL. Pulsed-wave Ultrasound Hyperthermia Enhanced Nanodrug Delivery Combined with Chloroquine Exerts Effective Antitumor Response and Postpones Recurrence. Sci Rep 2019; 9:12448. [PMID: 31462676 PMCID: PMC6713759 DOI: 10.1038/s41598-019-47345-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 06/28/2019] [Indexed: 12/23/2022] Open
Abstract
Autophagy is found to serve as a surviving mechanism for cancer cells. Inhibiting autophagy has been considered as an adjuvant anti-cancer strategy. In this study, we investigated the anti-tumor effect of combining pulsed-wave ultrasound hyperthermia (pUH) enhanced PEGylated liposomal doxorubicin (PLD) delivery with an autophagy inhibitor chloroquine (CQ). BALB/c mice bearing subcutaneous 4T1 tumor received intravenous injection of PLD (10 mg/kg) plus 15-minute on-tumor pUH on Day 5 after tumor implantation and were then fed with CQ (50 mg/kg daily) thereafter. Prolonged suppression of tumor growth was attained with PLD + pUH + CQ treatment, whereas in PLD + pUH group tumors quickly recurred after an initial inhibition. Treatment with CQ monotherapy had no benefit compared to the control group. Immunohistochemical staining and Western blotting showed that autophagy of cancer cells was blocked for the mice receiving CQ. It indicates that PLD + pUH + CQ is a promising strategy to treat cancer for a long-term inhibition.
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Affiliation(s)
- Chi-Feng Chiang
- Department of Biomedical Engineering, National Taiwan University, Taipei, Taiwan
| | - Yu-Hone Hsu
- Division of Neurosurgery, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Chih-Chun Liu
- Department of Biomedical Engineering, National Taiwan University, Taipei, Taiwan.,Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Po-Chin Liang
- Department of Biomedical Engineering, National Taiwan University, Taipei, Taiwan.,Department of Radiology, Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan
| | - Shi-Chuen Miaw
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Win-Li Lin
- Department of Biomedical Engineering, National Taiwan University, Taipei, Taiwan. .,Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli, Taiwan.
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Jiang S, Zhao Y, Zhang T, Lan J, Yang J, Yuan L, Zhang Q, Pan K, Zhang K. Galantamine inhibits β-amyloid-induced cytostatic autophagy in PC12 cells through decreasing ROS production. Cell Prolif 2018; 51:e12427. [PMID: 29292543 DOI: 10.1111/cpr.12427] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 11/24/2017] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES Alzheimer's disease (AD) is one of the most prevalent brain diseases among the elderly, majority of which is caused by abnormal deposition of amyloid beta-peptide (Aβ). Galantamine, currently the first-line drug in treatment of AD, has been shown to diminish Aβ-induced neurotoxicity and exert favourable neuroprotective effects, but the detail mechanisms remain unclear. MATERIALS AND METHODS Effects of galantamine on Aβ-induced cytotoxicity were checked by MTT, clone formation and apoptosis assays. The protein variations and reactive oxygen species (ROS) production were measured by western blotting analysis and dichloro-dihydro-fluorescein diacetate assay, respectively. RESULTS Galantamine reversed Aβ-induced cell growth inhibition and apoptosis in neuron cells PC12. Aβ activated the entire autophagy flux and accumulation of autophagosomes, and the inhibition of autophagy decreased the protein level of cleaved-caspase-3 and Aβ-induced cytotoxicity. Meanwhile, galantamine suppressed Aβ-mediated autophagy flux and accumulation of autophagosomes. Moreover, Aβ upregulated ROS accumulation, while ROS scavengers N-acetyl-l-cysteine impaired Aβ-mediated autophagy. Further investigation showed that galantamine downregulated NOX4 expression to inhibit Aβ-mediated ROS accumulation and autophagy. CONCLUSIONS Galantamine inhibits Aβ-induced cytostatic autophagy through decreasing ROS accumulation, providing new insights into deep understanding of AD progression and molecular basis of galantamine in neuroprotection.
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Affiliation(s)
- Sheng Jiang
- School of Basic Medical Sciences, Chengdu Medical College, Chengdu, China
| | - Ye Zhao
- School of Biomedical Sciences, Chengdu Medical College, Chengdu, China
| | - Tao Zhang
- School of Biomedical Sciences, Chengdu Medical College, Chengdu, China
| | - Jingbin Lan
- School of Basic Medical Sciences, Chengdu Medical College, Chengdu, China
| | - Jing Yang
- School of Biomedical Sciences, Chengdu Medical College, Chengdu, China
| | - Longhui Yuan
- School of Biomedical Sciences, Chengdu Medical College, Chengdu, China
| | - Qiyu Zhang
- School of Biomedical Sciences, Chengdu Medical College, Chengdu, China
| | - Kejian Pan
- School of Biomedical Sciences, Chengdu Medical College, Chengdu, China
| | - Kun Zhang
- School of Biomedical Sciences, Chengdu Medical College, Chengdu, China
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