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Gao Y, Wen P, Shao C, Ye C, Chen Y, You J, Su Z. CDC20 Holds Novel Regulation Mechanism in RPA1 during Different Stages of DNA Damage to Induce Radio-Chemoresistance. Int J Mol Sci 2024; 25:8383. [PMID: 39125953 PMCID: PMC11312485 DOI: 10.3390/ijms25158383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 07/25/2024] [Accepted: 07/28/2024] [Indexed: 08/12/2024] Open
Abstract
Targeting CDC20 can enhance the radiosensitivity of tumor cells, but the function and mechanism of CDC20 on DNA damage repair response remains vague. To examine that issue, tumor cell lines, including KYSE200, KYSE450, and HCT116, were utilized to detect the expression, function, and underlying mechanism of CDC20 in radio-chemoresistance. Western blot and immunofluorescence staining were employed to confirm CDC20 expression and location, and radiation could upregulate the expression of CDC20 in the cell nucleus. The homologous recombination (HR) and non-homologous end joining (NHEJ) reporter gene systems were utilized to explore the impact of CDC20 on DNA damage repair, indicating that CDC20 could promote HR repair and radio/chemo-resistance. In the early stages of DNA damage, CDC20 stabilizes the RPA1 protein through protein-protein interactions, activating the ATR-mediated signaling cascade, thereby aiding in genomic repair. In the later stages, CDC20 assists in the subsequent steps of damage repair by the ubiquitin-mediated degradation of RPA1. CCK-8 and colony formation assay were used to detect the function of CDC20 in cell vitality and proliferation, and targeting CDC20 can exacerbate the increase in DNA damage levels caused by cisplatin or etoposide. A tumor xenograft model was conducted in BALB/c-nu/nu mice to confirm the function of CDC20 in vivo, confirming the in vitro results. In conclusion, this study provides further validation of the potential clinical significance of CDC20 as a strategy to overcome radio-chemoresistance via uncovering a novel role of CDC20 in regulating RPA1 during DNA damage repair.
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Affiliation(s)
- Yang Gao
- Department of Histology and Embryology, Shantou University Medical College, Shantou 515041, China; (Y.G.); (C.S.); (C.Y.); (Y.C.); (J.Y.)
| | - Pengbo Wen
- School of Medical Information and Engineering, Xuzhou Medical University, Xuzhou 221002, China;
| | - Chenran Shao
- Department of Histology and Embryology, Shantou University Medical College, Shantou 515041, China; (Y.G.); (C.S.); (C.Y.); (Y.C.); (J.Y.)
| | - Cheng Ye
- Department of Histology and Embryology, Shantou University Medical College, Shantou 515041, China; (Y.G.); (C.S.); (C.Y.); (Y.C.); (J.Y.)
| | - Yuji Chen
- Department of Histology and Embryology, Shantou University Medical College, Shantou 515041, China; (Y.G.); (C.S.); (C.Y.); (Y.C.); (J.Y.)
| | - Junyu You
- Department of Histology and Embryology, Shantou University Medical College, Shantou 515041, China; (Y.G.); (C.S.); (C.Y.); (Y.C.); (J.Y.)
| | - Zhongjing Su
- Department of Histology and Embryology, Shantou University Medical College, Shantou 515041, China; (Y.G.); (C.S.); (C.Y.); (Y.C.); (J.Y.)
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Lv JL, Tan YJ, Ren YS, Ma R, Wang X, Wang SY, Liu WQ, Zheng QS, Yao JC, Tian J, Li J. Procyanidin C1 inhibits tumor growth and metastasis in colon cancer via modulating miR-501-3p/HIGD1A axis. J Adv Res 2024; 60:215-231. [PMID: 37479180 PMCID: PMC11156609 DOI: 10.1016/j.jare.2023.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/04/2023] [Accepted: 07/18/2023] [Indexed: 07/23/2023] Open
Abstract
INTRODUCTION Although colon (COAD) and rectal adenocarcinoma (READ) combined to refer to colorectal cancer (CRC), substantial clinical evidence urged that CRC should be treated as two different cancers due to compared with READ, COAD showed higher morbidity and worse 5-year survival. OBJECTIVES This study has tried to screen for the crucial gene that caused the worse prognosis and investigate its mechanism for mediating tumor growth and metastases in COAD. Meanwhile, the potential anti-COAD compound implicated in this mechanism was identified and testified from 1,855 food-borne chemical kits. This study aims to bring a new perspective to the development of new anti-COAD drugs and personalized medicine for patients with COAD. METHODS AND RESULTS The survival-related hub genes in COAD and READ were screened out from The Cancer Genome Atlas (TCGA) database and the results showed that HIGD1A, lower expressed in COAD than in READ, was associated with poor prognosis in COAD patients, but not in READ. Over-expressed HIGD1A suppressed CRC cell proliferation, invasion, and migration in vitro and in vivo. Meanwhile, the different expressed microRNA profiles between COAD and READ showed that miR-501-3p was highly expressed in COAD and inhibited HIGD1A expression by targeting 3'UTR of HIGD1A. MiR-501-3p mimics promoted cell proliferation and metastasis in CRC cells. In addition, Procyanidin C1 (PCC1), a kind of natural polyphenol has been verified as a potential miR-501-3p inhibitor. In vitro and in vivo, PCC1 promoted HIGD1A expression by suppressing miR-501-3p and resulted in inhibited tumor growth and metastasis. CONCLUSION The present study verified that miR-501-3p/HIGD1A axis mediated tumor growth and metastasis in COAD. PCC1, a flavonoid that riched in food exerts anti-COAD effects by inhibiting miR-501-3p and results in the latter losing the ability to suppress HIGD1A expression. Subsequently, unfettered HIGD1A inhibited tumor growth and metastasis in COAD.
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Affiliation(s)
- Jun-Lin Lv
- School of Integrated Traditional Chinese and Western Medicine, Binzhou Medical University, 264003 Yantai, China
| | - Yu-Jun Tan
- School of Life Science, Jiangsu Normal University, 221116 Xuzhou, China
| | - Yu-Shan Ren
- Department of Immunology, Medicine & Pharmacy Research Center, Binzhou Medical University, 264003 Yantai, China
| | - Ru Ma
- School of Integrated Traditional Chinese and Western Medicine, Binzhou Medical University, 264003 Yantai, China
| | - Xiao Wang
- Department of Immunology, Medicine & Pharmacy Research Center, Binzhou Medical University, 264003 Yantai, China
| | - Shu-Yan Wang
- Department of Immunology, Medicine & Pharmacy Research Center, Binzhou Medical University, 264003 Yantai, China
| | - Wan-Qing Liu
- School of Integrated Traditional Chinese and Western Medicine, Binzhou Medical University, 264003 Yantai, China
| | - Qiu-Sheng Zheng
- School of Integrated Traditional Chinese and Western Medicine, Binzhou Medical University, 264003 Yantai, China
| | - Jing-Chun Yao
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co., Ltd, 276000 Linyi, China.
| | - Jun Tian
- School of Life Science, Jiangsu Normal University, 221116 Xuzhou, China.
| | - Jie Li
- School of Integrated Traditional Chinese and Western Medicine, Binzhou Medical University, 264003 Yantai, China.
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Zhang H, Li X, Liu Z, Lin Z, Huang K, Wang Y, Chen Y, Liao L, Wu L, Xie Z, Hou J, Zhang X, Liu H. Elevated expression of HIGD1A drives hepatocellular carcinoma progression by regulating polyamine metabolism through c-Myc-ODC1 nexus. Cancer Metab 2024; 12:7. [PMID: 38395945 PMCID: PMC10893642 DOI: 10.1186/s40170-024-00334-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Hypoxia contributes to cancer progression through various molecular mechanisms and hepatocellular carcinoma (HCC) is one of the most hypoxic malignancies. Hypoxia-inducible gene domain protein-1a (HIGD1A) is typically induced via epigenetic regulation and promotes tumor cell survival during hypoxia. However, the role of HIGD1A in HCC remains unknown. METHODS HIGD1A expression was determined in 24 pairs of human HCC samples and para-tumorous tissues. Loss-of-function experiments were conducted both in vivo and in vitro to explore the role of HIGD1A in HCC proliferation and metastasis. RESULTS Increased HIGD1A expression was found in HCC tissues and cell lines, which was induced by hypoxia or low-glucose condition. Moreover, HIGD1A knockdown in HCC cells arrested the cell cycle at the G2/M phase and promoted hypoxia-induced cell apoptosis, resulting in great inhibition of cell proliferation, migration, and invasion, as well as tumor xenograft formation. Interestingly, these anti-tumor effects were not observed in normal hepatocyte cell line L02. Further, HIGD1A knockdown suppressed the expression of ornithine decarboxylase 1 (ODC1), a rate-limiting enzyme of polyamine metabolism under c-Myc regulation. HIGD1A was found to bind with the c-Myc promoter region, and its knockdown decreased the levels of polyamine metabolites. Consistently, the inhibitory effect on HCC phenotype by HIGD1A silencing could be reversed by overexpression of c-Myc or supplementation of polyamines. CONCLUSIONS Our results demonstrated that HIGD1A activated c-Myc-ODC1 nexus to regulate polyamine synthesis and to promote HCC survival and malignant phenotype, implying that HIGD1A might represent a novel therapeutic target for HCC.
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Affiliation(s)
- Haixing Zhang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaoran Li
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ziying Liu
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zimo Lin
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Kuiyuan Huang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yiran Wang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yu Chen
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Leyi Liao
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Leyuan Wu
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhanglian Xie
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jinlin Hou
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Xiaoyong Zhang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Hongyan Liu
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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González-Arzola K, Díaz-Quintana A. Mitochondrial Factors in the Cell Nucleus. Int J Mol Sci 2023; 24:13656. [PMID: 37686461 PMCID: PMC10563088 DOI: 10.3390/ijms241713656] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/31/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023] Open
Abstract
The origin of eukaryotic organisms involved the integration of mitochondria into the ancestor cell, with a massive gene transfer from the original proteobacterium to the host nucleus. Thus, mitochondrial performance relies on a mosaic of nuclear gene products from a variety of genomes. The concerted regulation of their synthesis is necessary for metabolic housekeeping and stress response. This governance involves crosstalk between mitochondrial, cytoplasmic, and nuclear factors. While anterograde and retrograde regulation preserve mitochondrial homeostasis, the mitochondria can modulate a wide set of nuclear genes in response to an extensive variety of conditions, whose response mechanisms often merge. In this review, we summarise how mitochondrial metabolites and proteins-encoded either in the nucleus or in the organelle-target the cell nucleus and exert different actions modulating gene expression and the chromatin state, or even causing DNA fragmentation in response to common stress conditions, such as hypoxia, oxidative stress, unfolded protein stress, and DNA damage.
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Affiliation(s)
- Katiuska González-Arzola
- Centro Andaluz de Biología Molecular y Medicina Regenerativa—CABIMER, Consejo Superior de Investigaciones Científicas—Universidad de Sevilla—Universidad Pablo de Olavide, 41092 Seville, Spain
- Departamento de Bioquímica Vegetal y Biología Molecular, Universidad de Sevilla, 41012 Seville, Spain
| | - Antonio Díaz-Quintana
- Departamento de Bioquímica Vegetal y Biología Molecular, Universidad de Sevilla, 41012 Seville, Spain
- Instituto de Investigaciones Químicas—cicCartuja, Universidad de Sevilla—C.S.I.C, 41092 Seville, Spain
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Park SS, Kwon MR, Ju EJ, Shin SH, Park J, Ko EJ, Son GW, Lee HW, Kim YJ, Moon GJ, Park Y, Song SY, Jeong S, Choi EK. Targeting phosphomevalonate kinase enhances radiosensitivity via ubiquitination of the replication protein A1 in lung cancer cells. Cancer Sci 2023; 114:3583-3594. [PMID: 37650703 PMCID: PMC10475767 DOI: 10.1111/cas.15896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 06/08/2023] [Accepted: 06/14/2023] [Indexed: 09/01/2023] Open
Abstract
Radiotherapy (RT) plays an important role in localized lung cancer treatments. Although RT locally targets and controls malignant lesions, RT resistance prevents RT from being an effective treatment for lung cancer. In this study, we identified phosphomevalonate kinase (PMVK) as a novel radiosensitizing target and explored its underlying mechanism. We found that cell viability and survival fraction after RT were significantly decreased by PMVK knockdown in lung cancer cell lines. RT increased apoptosis, DNA damage, and G2/M phase arrest after PMVK knockdown. Also, after PMVK knockdown, radiosensitivity was increased by inhibiting the DNA repair pathway, homologous recombination, via downregulation of replication protein A1 (RPA1). RPA1 downregulation was induced through the ubiquitin-proteasome system. Moreover, a stable shRNA PMVK mouse xenograft model verified the radiosensitizing effects of PMVK in vivo. Furthermore, PMVK expression was increased in lung cancer tissues and significantly correlated with patient survival and recurrence. Our results demonstrate that PMVK knockdown enhances radiosensitivity through an impaired HR repair pathway by RPA1 ubiquitination in lung cancer, suggesting that PMVK knockdown may offer an effective therapeutic strategy to improve the therapeutic efficacy of RT.
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Affiliation(s)
- Seok Soon Park
- ASAN Medical Center, Asan Institute for Life SciencesSeoulKorea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, ASAN Medical CenterSeoulKorea
| | - Mi Ri Kwon
- ASAN Medical Center, Asan Institute for Life SciencesSeoulKorea
- Department of Medical Science, Asan Medical Center, Asan Medical Institute of Convergence Science and TechnologyUniversity of Ulsan College of MedicineSeoulKorea
| | - Eun Jin Ju
- ASAN Medical Center, Asan Institute for Life SciencesSeoulKorea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, ASAN Medical CenterSeoulKorea
| | - Seol Hwa Shin
- ASAN Medical Center, Asan Institute for Life SciencesSeoulKorea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, ASAN Medical CenterSeoulKorea
| | - Jin Park
- ASAN Medical Center, Asan Institute for Life SciencesSeoulKorea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, ASAN Medical CenterSeoulKorea
| | - Eun Jung Ko
- ASAN Medical Center, Asan Institute for Life SciencesSeoulKorea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, ASAN Medical CenterSeoulKorea
| | - Ga Won Son
- ASAN Medical Center, Asan Institute for Life SciencesSeoulKorea
- Department of Medical Science, Asan Medical Center, Asan Medical Institute of Convergence Science and TechnologyUniversity of Ulsan College of MedicineSeoulKorea
| | - Hye Won Lee
- ASAN Medical Center, Asan Institute for Life SciencesSeoulKorea
- Department of Medical Science, Asan Medical Center, Asan Medical Institute of Convergence Science and TechnologyUniversity of Ulsan College of MedicineSeoulKorea
| | - Yeon Joo Kim
- Department of Radiation Oncology, ASAN Medical CenterUniversity of Ulsan College of MedicineSeoulKorea
| | - Gyeong Joon Moon
- Department of Convergence Medicine, ASAN Medical CenterUniversity of Ulsan College of MedicineSeoulKorea
- Center for Cell Therapy, ASAN Medical CenterSeoulKorea
| | - Yun‐Yong Park
- Department of Life ScienceChung‐Ang UniversitySeoulKorea
| | - Si Yeol Song
- Asan Preclinical Evaluation Center for Cancer Therapeutix, ASAN Medical CenterSeoulKorea
- Department of Radiation Oncology, ASAN Medical CenterUniversity of Ulsan College of MedicineSeoulKorea
| | - Seong‐Yun Jeong
- ASAN Medical Center, Asan Institute for Life SciencesSeoulKorea
- Asan Preclinical Evaluation Center for Cancer Therapeutix, ASAN Medical CenterSeoulKorea
- Department of Convergence Medicine, ASAN Medical CenterUniversity of Ulsan College of MedicineSeoulKorea
| | - Eun Kyung Choi
- Asan Preclinical Evaluation Center for Cancer Therapeutix, ASAN Medical CenterSeoulKorea
- Department of Radiation Oncology, ASAN Medical CenterUniversity of Ulsan College of MedicineSeoulKorea
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Li BY, Peng WQ, Liu Y, Guo L, Tang QQ. HIGD1A links SIRT1 activity to adipose browning by inhibiting the ROS/DNA damage pathway. Cell Rep 2023; 42:112731. [PMID: 37393616 DOI: 10.1016/j.celrep.2023.112731] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/28/2023] [Accepted: 06/16/2023] [Indexed: 07/04/2023] Open
Abstract
Energy-dissipating adipocytes have the potential to improve metabolic health. Here, we identify hypoxia-induced gene domain protein-1a (HIGD1A), a mitochondrial inner membrane protein, as a positive regulator of adipose browning. HIGD1A is induced in thermogenic fats by cold exposure. Peroxisome proliferator-activated receptor gamma (PPARγ) transactivates HIGD1A expression synergistically with peroxisome proliferators-activated receptor γ coactivator α (PGC1α). HIGD1A knockdown inhibits adipocyte browning, whereas HIGD1A upregulation promotes the browning process. Mechanistically, HIGD1A deficiency impairs mitochondrial respiration to increase reactive oxygen species (ROS) level. This increases NAD+ consumption for DNA damage repair and curtails the NAD+/NADH ratio, which inhibits sirtuin1 (SIRT1) activity, thereby compromising adipocyte browning. Conversely, overexpression of HIGD1A blunts the above process to promote adaptive thermogenesis. Furthermore, mice with HIGD1A knockdown in inguinal and brown fat have impaired thermogenesis and are prone to diet-induced obesity (DIO). Overexpression of HIGD1A favors adipose tissue browning, ultimately preventing DIO and metabolic disorders. Thus, the mitochondrial protein HIGD1A links SIRT1 activity to adipocyte browning by inhibiting ROS levels.
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Affiliation(s)
- Bai-Yu Li
- Key Laboratory of Metabolism and Molecular Medicine of the Ministry of Education, Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences and Department of Endocrinology and Metabolism of Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Wan-Qiu Peng
- Key Laboratory of Metabolism and Molecular Medicine of the Ministry of Education, Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences and Department of Endocrinology and Metabolism of Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yang Liu
- Key Laboratory of Metabolism and Molecular Medicine of the Ministry of Education, Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences and Department of Endocrinology and Metabolism of Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Liang Guo
- School of Exercise and Health and Shanghai Frontiers Science Research Base of Exercise and Metabolic Health, Shanghai University of Sport, Shanghai 200438, China.
| | - Qi-Qun Tang
- Key Laboratory of Metabolism and Molecular Medicine of the Ministry of Education, Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences and Department of Endocrinology and Metabolism of Zhongshan Hospital, Fudan University, Shanghai 200032, China.
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Sun YM, Zhang YM, Shi HL, Yang S, Zhao YL, Liu HJ, Li C, Liu HL, Yang JP, Song J, Sun GZ, Yang JK. Enhancer-driven transcription of MCM8 by E2F4 promotes ATR pathway activation and glioma stem cell characteristics. Hereditas 2023; 160:29. [PMID: 37349788 DOI: 10.1186/s41065-023-00292-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/13/2023] [Indexed: 06/24/2023] Open
Abstract
BACKGROUND Glioma stem cells (GSCs) are responsible for glioma recurrence and drug resistance, yet the mechanisms underlying their maintenance remains unclear. This study aimed to identify enhancer-controlled genes involved in GSCs maintenance and elucidate the mechanisms underlying their regulation. METHODS We analyzed RNA-seq data and H3K27ac ChIP-seq data from GSE119776 to identify differentially expressed genes and enhancers, respectively. Gene Ontology analysis was performed for functional enrichment. Transcription factors were predicted using the Toolkit for Cistrome Data Browser. Prognostic analysis and gene expression correlation was conducted using the Chinese Glioma Genome Atlas (CGGA) data. Two GSC cell lines, GSC-A172 and GSC-U138MG, were isolated from A172 and U138MG cell lines. qRT-PCR was used to detect gene transcription levels. ChIP-qPCR was used to detect H3K27ac of enhancers, and binding of E2F4 to target gene enhancers. Western blot was used to analyze protein levels of p-ATR and γH2AX. Sphere formation, limiting dilution and cell growth assays were used to analyze GSCs growth and self-renewal. RESULTS We found that upregulated genes in GSCs were associated with ataxia-telangiectasia-mutated-and-Rad3-related kinase (ATR) pathway activation, and that seven enhancer-controlled genes related to ATR pathway activation (LIN9, MCM8, CEP72, POLA1, DBF4, NDE1, and CDKN2C) were identified. Expression of these genes corresponded to poor prognosis in glioma patients. E2F4 was identified as a transcription factor that regulates enhancer-controlled genes related to the ATR pathway activation, with MCM8 having the highest hazard ratio among genes positively correlated with E2F4 expression. E2F4 bound to MCM8 enhancers to promote its transcription. Overexpression of MCM8 partially restored the inhibition of GSCs self-renewal, cell growth, and the ATR pathway activation caused by E2F4 knockdown. CONCLUSION Our study demonstrated that E2F4-mediated enhancer activation of MCM8 promotes the ATR pathway activation and GSCs characteristics. These findings offer promising targets for the development of new therapies for gliomas.
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Affiliation(s)
- Yu-Meng Sun
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Yi-Meng Zhang
- Medical Department, The First Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Hai-Liang Shi
- Department of Neurosurgery, Hebei General Hospital, Shijiazhuang, 050000, Hebei, China
| | - Song Yang
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Yin-Long Zhao
- Department of Anesthesiology and Intensive Care, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Hong-Jiang Liu
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Chen Li
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Hong-Lei Liu
- Department of Neurosurgery, Shijiazhuang Third Hospital, Shijiazhuang, 050011, Hebei, China
| | - Ji-Peng Yang
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Jian Song
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Guo-Zhu Sun
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Jian-Kai Yang
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China.
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Zhang Y, Wang R, Liu R, Xie S, Jiao F, Li Y, Xin J, Zhang H, Wang Z, Yan Y. Delivery of miR-3529-3p using MnO 2 -SiO 2 -APTES nanoparticles combined with phototherapy suppresses lung adenocarcinoma progression by targeting HIGD1A. Thorac Cancer 2023; 14:913-928. [PMID: 36808485 PMCID: PMC10067359 DOI: 10.1111/1759-7714.14823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 02/04/2023] [Accepted: 02/06/2023] [Indexed: 02/22/2023] Open
Abstract
BACKGROUND The present study aimed to investigate the function of miR-3529-3p in lung adenocarcinoma and MnO2 -SiO2 -APTES (MSA) as a promising multifunctional delivery agent for lung adenocarcinoma therapy. METHODS Expression levels of miR-3529-3p were evaluated in lung carcinoma cells and tissues by qRT-PCR. The effects of miR-3529-3p on apoptosis, proliferation, metastasis and neovascularization were assessed by CCK-8, FACS, transwell and wound healing assays, tube formation and xenografts experiments. Luciferase reporter assays, western blot, qRT-PCR and mitochondrial complex assay were used to determine the targeting relationship between miR-3529-3p and hypoxia-inducible gene domain family member 1A (HIGD1A). MSA was fabricated using MnO2 nanoflowers, and its heating curves, temperature curves, IC50, and delivery efficiency were examined. The hypoxia and reactive oxygen species (ROS) production was investigated by nitro reductase probing, DCFH-DA staining and FACS. RESULTS MiR-3529-3p expression was reduced in lung carcinoma tissues and cells. Transfection of miR-3529-3p could promote apoptosis and suppress cell proliferation, migration and angiogenesis. As a target of miR-3529-3p, HIGD1A expression was downregulated, through which miR-3529-3p could disrupt the activities of complexes III and IV of the respiratory chain. The multifunctional nanoparticle MSA could not only efficiently deliver miR-3529-3p into cells, but also enhance the antitumor function of miR-3529-3p. The underlying mechanism may be that MSA alleviates hypoxia and has synergistic effects in cellular ROS promotion with miR-3529-3p. CONCLUSIONS Our results establish the antioncogenic role of miR-3529-3p, and demonstrate that miR-3529-3p delivered by MSA has enhanced tumor suppressive effects, probably through elevating ROS production and thermogenesis.
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Affiliation(s)
- Ying Zhang
- Department of Biochemistry and Molecular BiologyBinzhou Medical UniversityYantaiP. R. China
- Oncology DepartmentBinzhou Medical University HospitalBinzhouP. R. China
| | - Ran‐Ran Wang
- Department of Biochemistry and Molecular BiologyBinzhou Medical UniversityYantaiP. R. China
| | - Rui Liu
- Department of Biochemistry and Molecular BiologyBinzhou Medical UniversityYantaiP. R. China
| | - Shu‐Yang Xie
- Department of Biochemistry and Molecular BiologyBinzhou Medical UniversityYantaiP. R. China
| | - Fei Jiao
- Department of Biochemistry and Molecular BiologyBinzhou Medical UniversityYantaiP. R. China
| | - You‐Jie Li
- Department of Biochemistry and Molecular BiologyBinzhou Medical UniversityYantaiP. R. China
| | - Jiaxuan Xin
- Department of Biochemistry and Molecular BiologyBinzhou Medical UniversityYantaiP. R. China
| | - Han Zhang
- Department of Biochemistry and Molecular BiologyBinzhou Medical UniversityYantaiP. R. China
| | - Zhenbo Wang
- Oncology DepartmentBinzhou Medical University HospitalBinzhouP. R. China
| | - Yun‐Fei Yan
- Department of Biochemistry and Molecular BiologyBinzhou Medical UniversityYantaiP. R. China
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Jia YZ, Liu J, Wang GQ, Pan H, Huang TZ, Liu R, Zhang Y. HIG1 domain family member 1A is a crucial regulator of disorders associated with hypoxia. Mitochondrion 2023; 69:171-182. [PMID: 36804467 DOI: 10.1016/j.mito.2023.02.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 02/06/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023]
Abstract
Mitochondria play a central role in cellular energy conversion, metabolism, and cell proliferation. The regulation of mitochondrial function by HIGD1A, which is located on the inner membrane of the mitochondria, is essential to maintain cell survival under hypoxic conditions. In recent years, there have been shown other cellular pathways and mechanisms involving HIGD1A diametrically or through its interaction. As a novel regulator, HIGD1A maintains mitochondrial integrity and enhances cell viability under hypoxic conditions, increasing cell resistance to hypoxia. HIGD1A mainly targets cytochrome c oxidase by regulating downstream signaling pathways, which affects the ATP generation system and subsequently alters mitochondrial respiratory function. In addition, HIGD1A plays a dual role in cell survival in distinct degree hypoxia regions of the tumor. Under mild and moderate anoxic areas, HIGD1A acts as a positive regulator to promote cell growth. However, HIGD1A plays a role in inhibiting cell growth but retaining cellular activity under severe anoxic areas. We speculate that HIGD1A engages in tumor recurrence and drug resistance mechanisms. This review will focus on data concerning how HIGD1A regulates cell viability under hypoxic conditions. Therefore, HIGD1A could be a potential therapeutic target for hypoxia-related diseases.
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Affiliation(s)
- Yin-Zhao Jia
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jing Liu
- Key Laboratory of Coal Science and Technology of Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Geng-Qiao Wang
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Hao Pan
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Tie-Zeng Huang
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ran Liu
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yong Zhang
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Wang R, Shang Y, Chen B, Xu F, Zhang J, Zhang Z, Zhao X, Wan X, Xu A, Wu L, Zhao G. Protein disulfide isomerase blocks the interaction of LC3II-PHB2 and promotes mTOR signaling to regulate autophagy and radio/chemo-sensitivity. Cell Death Dis 2022; 13:851. [PMID: 36202782 PMCID: PMC9537141 DOI: 10.1038/s41419-022-05302-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 11/08/2022]
Abstract
Protein disulfide isomerase (PDI) is an endoplasmic reticulum (ER) enzyme that mediates the formation of disulfide bonds, and is also a therapeutic target for cancer treatment. Our previous studies found that PDI mediates apoptotic signaling by inducing mitochondrial dysfunction. Considering that mitochondrial dysfunction is a major contributor to autophagy, how PDI regulates autophagy remains unclear. Here, we provide evidence that high expression of PDI in colorectal cancer tumors significantly increases the risk of metastasis and poor prognosis of cancer patients. PDI inhibits radio/chemo-induced cell death by regulating autophagy signaling. Mechanistically, the combination of PDI and GRP78 was enhanced after ER stress, which inhibits the degradation of AKT by GRP78, and eventually activates the mTOR pathway to inhibit autophagy initiation. In parallel, PDI can directly interact with the mitophagy receptor PHB2 in mitochondrial, then competitively blocks the binding of LC3II and PHB2 and inhibits the mitophagy signaling. Collectively, our results identify that PDI can reduce radio/chemo-sensitivity by regulating autophagy, which could be served as a potential target for radio/chemo-therapy.
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Affiliation(s)
- Ruru Wang
- grid.9227.e0000000119573309High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Chinese Academy of Sciences, Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031 China ,grid.59053.3a0000000121679639University of Science and Technology of China, Hefei, Anhui 230026 China
| | - Yajing Shang
- grid.9227.e0000000119573309High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Chinese Academy of Sciences, Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031 China ,grid.186775.a0000 0000 9490 772XAnhui Medical University, Hefei, Anhui 230032 China
| | - Bin Chen
- grid.9227.e0000000119573309High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Chinese Academy of Sciences, Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031 China ,grid.59053.3a0000000121679639University of Science and Technology of China, Hefei, Anhui 230026 China
| | - Feng Xu
- grid.9227.e0000000119573309High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Chinese Academy of Sciences, Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031 China ,grid.59053.3a0000000121679639University of Science and Technology of China, Hefei, Anhui 230026 China
| | - Jie Zhang
- grid.9227.e0000000119573309High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Chinese Academy of Sciences, Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031 China ,grid.59053.3a0000000121679639University of Science and Technology of China, Hefei, Anhui 230026 China
| | - Zhaoyang Zhang
- grid.9227.e0000000119573309High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Chinese Academy of Sciences, Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031 China ,grid.59053.3a0000000121679639University of Science and Technology of China, Hefei, Anhui 230026 China
| | - Xipeng Zhao
- grid.9227.e0000000119573309High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Chinese Academy of Sciences, Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031 China ,grid.252245.60000 0001 0085 4987Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601 China
| | - Xiangbo Wan
- grid.488525.6The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510275 China
| | - An Xu
- grid.9227.e0000000119573309High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Chinese Academy of Sciences, Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031 China
| | - Lijun Wu
- grid.9227.e0000000119573309High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Chinese Academy of Sciences, Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031 China ,grid.252245.60000 0001 0085 4987Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601 China
| | - Guoping Zhao
- grid.9227.e0000000119573309High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Chinese Academy of Sciences, Anhui Province Key Laboratory of Environmental Toxicology and Pollution Control Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031 China
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11
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Replicative Stress Coincides with Impaired Nuclear DNA Damage Response in COX4-1 Deficiency. Int J Mol Sci 2022; 23:ijms23084149. [PMID: 35456968 PMCID: PMC9029573 DOI: 10.3390/ijms23084149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/05/2022] [Accepted: 04/07/2022] [Indexed: 11/25/2022] Open
Abstract
Cytochrome c oxidase (COX), a multimeric protein complex, is the final electron acceptor in the mitochondrial electron transfer chain. Primary COX deficiency, caused by mutations in either mitochondrial DNA or nuclear-encoded genes, is a heterogenous group of mitochondrial diseases with a wide range of presentations, ranging from fatal infantile to subtler. We previously reported a patient with primary COX deficiency due to a pathogenic variant in COX4I1 (encoding the common isoform of COX subunit 4, COX4-1), who presented with bone marrow failure, genomic instability, and short stature, mimicking Fanconi anemia (FA). In the present study, we demonstrated that accumulative DNA damage coincided primarily with proliferative cells in the patient’s fibroblasts and in COX4i1 knockdown cells. Expression analysis implicated a reduction in DNA damage response pathways, which was verified by demonstrating impaired recovery from genotoxic insult and decreased DNA repair. The premature senescence of the COX4-1-deficient cells prevented us from undertaking additional studies; nevertheless, taken together, our results indicate replicative stress and impaired nuclear DNA damage response in COX4-1 deficiency. Interestingly, our in vitro findings recapitulated the patient’s presentation and present status.
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