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Wang H, Luo Y, Ran R, Li X, Ling H, Wen F, Yu T. IDO1 Modulates the Sensitivity of Epithelial Ovarian Cancer Cells to Cisplatin through ROS/p53-Dependent Apoptosis. Int J Mol Sci 2022; 23:ijms231912002. [PMID: 36233312 PMCID: PMC9569641 DOI: 10.3390/ijms231912002] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/03/2022] [Accepted: 10/07/2022] [Indexed: 11/16/2022] Open
Abstract
Indoleamine 2,3-dioxygenase 1 (IDO1) is a heme-containing dioxygenase that may play a part in chemoresistance in ovarian cancer. However, its role in cisplatin (DDP) resistance is unclear. Here, the expression level of IDO1 in tumors in platinum-resistant (n = 22) and -sensitive (n = 46) ovarian cancer patients was determined, and then how IDO1 modulated DDP resistance was explored in vitro and in vivo. The IDO1 expression level in platinum-resistant patients was higher than that in -sensitive patients, and a higher IDO1 level was correlated with poor prognosis in type II cancer patients. Up-regulating IDO1 decreased DDP-induced apoptosis in SKOV3 cells via inhibiting the ROS/p53 cell-death pathway, thereby attenuating cytotoxicity of DDP. Silencing IDO1 enhanced p53-dependent apoptosis by increasing ROS accumulation, thereby enhancing DDP against SKOV3 cells. Down-knocking IDO1 augmented the action of DDP in vivo. These data demonstrated that silencing IDO1 enhanced the efficacy of DDP by intensifying p53-dependent apoptosis, and that targeting IDO1 can be a strategy to modulate DDP-based chemotherapy for epithelial ovarian cancer.
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NUCKS1 is a highly modified, chromatin-associated protein involved in a diverse set of biological and pathophysiological processes. Biochem J 2022; 479:1205-1220. [PMID: 35695515 PMCID: PMC10016235 DOI: 10.1042/bcj20220075] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/17/2022] [Accepted: 05/26/2022] [Indexed: 11/17/2022]
Abstract
The Nuclear Casein and Cyclin-dependent Kinase Substrate 1 (NUCKS1) protein is highly conserved in vertebrates, predominantly localized to the nucleus and one of the most heavily modified proteins in the human proteome. NUCKS1 expression is high in stem cells and the brain, developmentally regulated in mice and associated with several diverse malignancies in humans, including cancer, metabolic syndrome and Parkinson's disease. NUCKS1 function has been linked to modulating chromatin architecture and transcription, DNA repair and cell cycle regulation. In this review, we summarize and discuss the published information on NUCKS1 and highlight the questions that remain to be addressed to better understand the complex biology of this multifaceted protein.
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Yun B, King M, Draz MS, Kline T, Rodriguez-Palacios A. Oxidative reactivity across kingdoms in the gut: Host immunity, stressed microbiota and oxidized foods. Free Radic Biol Med 2022; 178:97-110. [PMID: 34843918 DOI: 10.1016/j.freeradbiomed.2021.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/05/2021] [Accepted: 11/08/2021] [Indexed: 02/07/2023]
Abstract
Reactive oxygen species play a major role in the induction of programmed cell death and numerous diseases. Production of reactive oxygen species is ubiquitous in biological systems such as humans, bacteria, fungi/yeasts, and plants. Although reactive oxygen species are known to cause diseases, little is known about the importance of the combined oxidative stress burden in the gut. Understanding the dynamics and the level of oxidative stress 'reactivity' across kingdoms could help ascertain the combined consequences of free radical accumulation in the gut lumen. Here, we present fundamental similarities of oxidative stress derived from the host immune cells, bacteria, yeasts, plants, and the therein-derived diets, which often accentuate the burden of free radicals by accumulation during storage and cooking conditions. Given the described similarities, oxidative stress could be better understood and minimized by monitoring the levels of oxidative stress in the feces to identify pro-inflammatory factors. However, we illustrate that dietary studies rarely monitor oxidative stress markers in the feces, and therefore our knowledge on fecal oxidative stress monitoring is limited. A more holistic approach to understanding oxidative stress 'reactivity' in the gut could help improve strategies to use diet and microbiota to prevent intestinal diseases.
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Affiliation(s)
- Bahda Yun
- Division of Gastroenterology & Liver Disease, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Maria King
- Division of Gastroenterology & Liver Disease, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Mohamed S Draz
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Terence Kline
- Veterinary Technology Program, Cuyahoga Community College, Cleveland, OH, USA
| | - Alex Rodriguez-Palacios
- Division of Gastroenterology & Liver Disease, Case Western Reserve University School of Medicine, Cleveland, OH, USA; Germ-free and Gut Microbiome Core, Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA; University Hospitals Research and Education Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA.
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4
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Hume S, Grou CP, Lascaux P, D'Angiolella V, Legrand AJ, Ramadan K, Dianov GL. The NUCKS1-SKP2-p21/p27 axis controls S phase entry. Nat Commun 2021; 12:6959. [PMID: 34845229 PMCID: PMC8630071 DOI: 10.1038/s41467-021-27124-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 11/02/2021] [Indexed: 11/13/2022] Open
Abstract
Efficient entry into S phase of the cell cycle is necessary for embryonic development and tissue homoeostasis. However, unscheduled S phase entry triggers DNA damage and promotes oncogenesis, underlining the requirement for strict control. Here, we identify the NUCKS1-SKP2-p21/p27 axis as a checkpoint pathway for the G1/S transition. In response to mitogenic stimulation, NUCKS1, a transcription factor, is recruited to chromatin to activate expression of SKP2, the F-box component of the SCFSKP2 ubiquitin ligase, leading to degradation of p21 and p27 and promoting progression into S phase. In contrast, DNA damage induces p53-dependent transcriptional repression of NUCKS1, leading to SKP2 downregulation, p21/p27 upregulation, and cell cycle arrest. We propose that the NUCKS1-SKP2-p21/p27 axis integrates mitogenic and DNA damage signalling to control S phase entry. The Cancer Genome Atlas (TCGA) data reveal that this mechanism is hijacked in many cancers, potentially allowing cancer cells to sustain uncontrolled proliferation.
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Affiliation(s)
- Samuel Hume
- Medical Research Council Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, OX3 7DQ, Oxford, UK
| | - Claudia P Grou
- Medical Research Council Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, OX3 7DQ, Oxford, UK
| | - Pauline Lascaux
- Medical Research Council Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, OX3 7DQ, Oxford, UK
| | - Vincenzo D'Angiolella
- Medical Research Council Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, OX3 7DQ, Oxford, UK
| | - Arnaud J Legrand
- Medical Research Council Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, OX3 7DQ, Oxford, UK.
- Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, SW3 6JB, UK.
| | - Kristijan Ramadan
- Medical Research Council Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, OX3 7DQ, Oxford, UK.
| | - Grigory L Dianov
- Medical Research Council Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, OX3 7DQ, Oxford, UK.
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Lavrentieva 10, 630090, Novosibirsk, Russia.
- Novosibirsk State University, Novosibirsk, Russian Federation, 630090, Russia.
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5
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Han T, Hu X, Li K, Zhang D, Zhang Y, Li J. Bifidobacterium infantis Maintains Genome Stability in Ulcerative Colitis via Regulating Anaphase-Promoting Complex Subunit 7. Front Microbiol 2021; 12:761113. [PMID: 34795654 PMCID: PMC8593188 DOI: 10.3389/fmicb.2021.761113] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 10/08/2021] [Indexed: 12/12/2022] Open
Abstract
Probiotics represents a promising intestinal microbiota-targeted therapeutic method for the treatment of ulcerative colitis (UC). Several lines of evidence implicate that Bifidobacterium infantis serves as a probiotic strain with proven efficacy in maintaining the remission of UC. However, the exact mechanisms underlying the beneficial effects of B. infantis on UC progression have yet to be elucidated. Herein, we provide evidence that B. infantis acts as a key predisposing factor for the maintenance of host genome stability. First, we showed that the fecal microbiota transplantation (FMT) of UC-derived feces contributes to more severely DNA damage in dextran sodium sulfate (DSS)-induced mice likely due to mucosa-associated microbiota alterations, as reflected by the rapid appearance of DNA double strand breaks (DSBs), a typical marker of genome instability. Genomic DNA damage analysis of colon tissues derived from healthy controls, patients with UC or dysplasia, and colitis associated cancer (CAC) patients, revealed an enhanced level of DSBs with aggravation in the degree of the intestinal mucosal lesions. To evaluate whether B. infantis modulates the host genome stability, we employed the DSS-induced colitis model and a TNFα-induced intestinal epithelial cell model. Following the administration of C57BL/6 mice with B. infantis via oral gavage, we found that the development of DSS-induced colitis in mice was significantly alleviated, in contrast to the colitis model group. Notably, B. infantis administration decreased DSB levels in both DSS-induced colitis and TNF-treated colonial cell model. Accordingly, our bioinformatic and functional studies demonstrated that B. infantis altered signal pathways involved in ubiquitin-mediated proteolysis, transcriptional misregulation in cancer, and the bacterial invasion of epithelial cells. Mechanistically, B. infantis upregulated anaphase-promoting complex subunit 7 (APC7), which was significantly suppressed in colitis condition, to activate the DNA repair pathway and alter the genome stability, while downregulation of APC7 abolished the efficiency of B. infantis treatment to induce a decrease in the level of DSBs in TNFα-induced colonial cells. Collectively, our results support that B. infantis orchestrates a molecular network involving in APC7 and genome stability, to control UC development at the clinical, biological, and mechanistic levels. Supplying B. infantis and targeting its associated pathway will yield valuable insight into the clinical management of UC patients.
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Affiliation(s)
- Taotao Han
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Gut Microbiota Translational Medicine Research, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaomin Hu
- Key Laboratory of Gut Microbiota Translational Medicine Research, Chinese Academy of Medical Sciences, Beijing, China.,State Key Laboratory of Complex Severe and Rare Diseases, Department of Medical Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Kemin Li
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Gut Microbiota Translational Medicine Research, Chinese Academy of Medical Sciences, Beijing, China
| | - Di Zhang
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Gut Microbiota Translational Medicine Research, Chinese Academy of Medical Sciences, Beijing, China
| | - Yan Zhang
- Institute of Cardiovascular Sciences and Key Laboratory of Molecular Cardiovascular Sciences, School of Basic Medical Sciences, Ministry of Education, Peking University Health Science Center, Beijing, China
| | - Jingnan Li
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Gut Microbiota Translational Medicine Research, Chinese Academy of Medical Sciences, Beijing, China
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Curcumin Improves Epithelial Barrier Integrity of Caco-2 Monolayers by Inhibiting Endoplasmic Reticulum Stress and Subsequent Apoptosis. Gastroenterol Res Pract 2021; 2021:5570796. [PMID: 34659400 PMCID: PMC8514927 DOI: 10.1155/2021/5570796] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 09/01/2021] [Accepted: 09/21/2021] [Indexed: 02/06/2023] Open
Abstract
Curcumin is a natural polyphenol and is supposed to possess antioxidant, anti-inflammatory, anticancer, and antiapoptotic properties. Although some studies have reported the therapeutic effects of curcumin on ulcerative colitis (UC), the specific mechanism remains unclear. An in vitro coculture model of Caco-2 and differentiated THP-1 cells was established. After administration of curcumin (10 μM), Western blot analysis was performed to evaluate the protein levels of tight junction (TJ) proteins zonula occludens- (ZO-) 1 and claudin-1. Annexin V-APC/7-AAD assays and flow cytometry were conducted to assess Caco-2 cell apoptosis. The expression levels of oxidative stress and endoplasmic reticulum stress- (ERS-) related molecules were determined by Western blot analysis. Curcumin administration significantly upregulated ZO-1 and claudin-1 protein levels and reduced Caco-2 cell apoptosis. The protein levels of oxidative stress markers inducible nitric oxide synthase (iNOS) and γH2AX and ERS-induced apoptosis-related molecules C/EBP homologous protein (CHOP) and cleaved caspase-12 were significantly downregulated upon curcumin treatment. Furthermore, curcumin administration greatly blocked the protein kinase-like endoplasmic reticulum kinase- (PERK-) eukaryotic translation initiation factor 2α- (eIF2α-) activating transcription factor 4- (ATF4-) CHOP signaling pathway. Curcumin enhanced intestinal epithelial barrier integrity in the in vitro coculture model by upregulating TJ protein expressions and reducing intestinal epithelial cell apoptosis. The potential mechanisms may be suppression of ERS and subsequent apoptosis.
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7
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Wen X, Xu X, Luo X, Yin J, Liang C, Zhu J, Nong X, Zhu X, Ning F, Gu S, Xiong S, Fu J, Zhu D, Dai Z, Lv D, Lin Z, Lin J, Li Y, Ma G, Wang Y. Nucks1 gene polymorphism rs823114 is associated with the positive symptoms and neurocognitive function of patients with schizophrenia in parts of southern China. Psychiatr Genet 2021; 31:119-125. [PMID: 34030174 PMCID: PMC8265546 DOI: 10.1097/ypg.0000000000000285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 04/23/2021] [Indexed: 01/14/2023]
Abstract
Nuclear casein kinase and cyclin-dependent kinase substrate 1 (nucks1) are considered a potential susceptibility gene for certain neurological diseases, such as Parkinson's disease (PD). In our study, we genotyped three single nucleotide polymorphisms (SNPs) (rs4951261, rs823114 and rs951366) of the nucks1 gene in 774 schizophrenic patients and 819 healthy controls using the improved multiplex ligation detection reaction (imLDR) technique. Furthermore, we also studied the relationship between the above SNPs and the clinical psychiatric symptoms and neurocognitive function of the patients. Genotype distributions and allele frequencies of these SNPs showed no significant differences and were found between patients and healthy controls. However, in an analysis of the positive symptom score of rs823114 among male patients, we found that the score of the A/A genotype was lower than that of the G/A+G/G genotypes (P = 0.001, P(corr) = 0.003]. Additionally, we also found that among the female patients, G allele carriers with rs823114 had lower semantic fluency scores than subjects with the A/A genotype (P = 0.010, P(corr) = 0.030]. Our data show for the first time that rs823114 polymorphism of nucks1 may affect positive symptoms and neurocognitive function in patients with schizophrenia in parts of southern China.
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Affiliation(s)
- Xia Wen
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjian
- Maternal and Children’s Health Research Institute, Shunde Women and Children’s Hospital, Guangdong Medical University, Foshan
| | - Xusan Xu
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjian
- Maternal and Children’s Health Research Institute, Shunde Women and Children’s Hospital, Guangdong Medical University, Foshan
| | - Xudong Luo
- Department of Psychiatry, Affiliated Hospital of Guangdong Medical University, Zhanjiang
| | - Jinwen Yin
- Department of Psychiatry, Affiliated Hospital of Guangdong Medical University, Zhanjiang
| | - Chunmei Liang
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjian
| | | | | | - Xiudeng Zhu
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjian
| | - Fan Ning
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjian
| | - Shanshan Gu
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjian
| | - Susu Xiong
- Department of Psychiatry, Affiliated Hospital of Guangdong Medical University, Zhanjiang
| | - Jiawu Fu
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjian
| | - Dongjian Zhu
- Department of Psychiatry, Affiliated Hospital of Guangdong Medical University, Zhanjiang
| | - Zhun Dai
- Department of Psychiatry, Affiliated Hospital of Guangdong Medical University, Zhanjiang
| | - Dong Lv
- Department of Psychiatry, Affiliated Hospital of Guangdong Medical University, Zhanjiang
| | - Zhixiong Lin
- Department of Psychiatry, Affiliated Hospital of Guangdong Medical University, Zhanjiang
| | - Juda Lin
- Department of Psychiatry, Affiliated Hospital of Guangdong Medical University, Zhanjiang
| | - You Li
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjian
| | - Guoda Ma
- Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjian
- Maternal and Children’s Health Research Institute, Shunde Women and Children’s Hospital, Guangdong Medical University, Foshan
| | - Yajun Wang
- Medical Genetics Laboratory, Shunde Women and Children’s Hospital, Guangdong Medical University, Foshan, China
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8
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Ozawa N, Yokobori T, Osone K, Katayama C, Suga K, Komine C, Shibasaki Y, Shiraishi T, Okada T, Kato R, Ogawa H, Sano A, Sakai M, Sohda M, Ojima H, Miyazaki T, Motegi Y, Ide M, Yao T, Kuwano H, Shirabe K, Saeki H. PD-L1 upregulation is associated with activation of the DNA double-strand break repair pathway in patients with colitic cancer. Sci Rep 2021; 11:13077. [PMID: 34158547 PMCID: PMC8219733 DOI: 10.1038/s41598-021-92530-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 06/11/2021] [Indexed: 02/07/2023] Open
Abstract
Ulcerative colitis (UC) is a DNA damage-associated chronic inflammatory disease; the DNA double-strand break (DSB) repair pathway participates in UC-associated dysplasia/colitic cancer carcinogenesis. The DSB/interferon regulatory factor-1 (IRF-1) pathway can induce PD-L1 expression transcriptionally. However, the association of PD-L1/DSB/IRF-1 with sporadic colorectal cancer (SCRC), and UC-associated dysplasia/colitic cancer, remains elusive. Therefore, we investigated the significance of the PD-L1/DSB repair pathway using samples from 17 SCRC and 12 UC patients with rare UC-associated dysplasia/colitic cancer cases by immunohistochemical analysis. We compared PD-L1 expression between patients with SCRC and UC-associated dysplasia/colitic cancer and determined the association between PD-L1 and the CD8+ T-cell/DSB/IRF-1 axis in UC-associated dysplasia/colitic cancer. PD-L1 expression in UC and UC-associated dysplasia/colitic cancer was higher than in normal mucosa or SCRC, and in CD8-positive T lymphocytes in UC-associated dysplasia/colitic cancer than in SCRC. Moreover, PD-L1 upregulation was associated with γH2AX (DSB marker) and IRF-1 upregulation in UC-associated dysplasia/colitic cancer. IRF-1 upregulation was associated with γH2AX upregulation in UC-associated dysplasia/colitic cancer but not in SCRC. Multicolour immunofluorescence staining validated γH2AX/IRF-1/PD-L1 co-expression in colitic cancer tissue sections. Thus, immune cell-induced inflammation might activate the DSB/IRF-1 axis, potentially serving as the primary regulatory mechanism of PD-L1 expression in UC-associated carcinogenesis.
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Affiliation(s)
- Naoya Ozawa
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Takehiko Yokobori
- Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research (GIAR), 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan.
| | - Katsuya Osone
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Chika Katayama
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Kunihiko Suga
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Chika Komine
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Yuta Shibasaki
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Takuya Shiraishi
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Takuhisa Okada
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Ryuji Kato
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Hiroomi Ogawa
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Akihiko Sano
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Makoto Sakai
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Makoto Sohda
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Hitoshi Ojima
- Department of Gastroenterological Surgery, Gunma Prefectural Cancer Center, Ohta, Gunma, Japan
| | - Tatsuya Miyazaki
- Department of Gastroenterological Surgery, Maebashi Red Cross Hospital, Maebashi, Gunma, Japan
| | - Yoko Motegi
- Department of Gastroenterological Surgery, Maebashi Red Cross Hospital, Maebashi, Gunma, Japan
| | - Munenori Ide
- Department of Pathology Diagnosis, Maebashi Red Cross Hospital, Maebashi, Gunma, Japan
| | - Takashi Yao
- Department of Human Pathology, Graduate School of Medicine, Juntendo University, Bunkyo City, Tokyo, Japan
| | - Hiroyuki Kuwano
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Ken Shirabe
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Hiroshi Saeki
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
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Zhou J, Guo X, Chen W, Wang L, Jin Y. Targeting survivin sensitizes cervical cancer cells to radiation treatment. Bioengineered 2020; 11:130-140. [PMID: 31959045 PMCID: PMC6984589 DOI: 10.1080/21655979.2020.1717297] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Survivin is an inhibitor of apoptosis protein that functions to inhibit apoptosis, promote proliferation, and enhance invasion. It is selectively up-regulated in many human tumors and implicated in cellular radiation response through its role in apoptosis, cell division, and DNA damage response. This study aimed to investigate the effect and mechanisms of targeting survivin radiosensitivity in cervical cancer C33A cells. Here, the authors designed a small interfering RNA (siRNA) or plasmid-based small hairpin RNA (shRNA) targeting survivin and tested its effects on radiosensitivity to ionizing radiation (IR) treatment of C33A cells in vitro, as well as on the tumorigenicity of C33A cells in nude mice in vivo. Transient transfection of survivin siRNA into C33A cells suppressed survivin expression, induced cell apoptosis and G2/M arrest and reduced cell proliferation, clone formation ability after IR, followed by p53 upregulated modulator of apoptosis (PUMA) upregulation. But, transient transfection of survivin siRNA alone has no significant effect on cell growth and apoptosis. To confirm that PUMA upregulation is necessary for survivin silencing -induced radiosensitivity to IR treatment, the effect of targeting PUMA in survivin sliencing cells was observed. The results showed that targeting PUMA in survivin sliencing cells rescued C33A cells’ radioresistance. Furthermore, knocking down survivin expression combined with IR treatment significantly slowed tumor growth and promoted tumor cell apoptosis in C33A xenografted tumors. It was concluded that survivin played a role in radiotherapy resistance. Targeting survivin increased the radiosensitivity of C33A cells through induction of PUMA expression.
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Affiliation(s)
- Jing Zhou
- Department of Radiotherapy, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Xiaojing Guo
- Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Weifen Chen
- Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Liming Wang
- Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yonglong Jin
- Department of Radiotherapy, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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