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Fu Z, Jiang S, Sun Y, Zheng S, Zong L, Li P. Cut&tag: a powerful epigenetic tool for chromatin profiling. Epigenetics 2024; 19:2293411. [PMID: 38105608 PMCID: PMC10730171 DOI: 10.1080/15592294.2023.2293411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/05/2023] [Indexed: 12/19/2023] Open
Abstract
Analysis of transcription factors and chromatin modifications at the genome-wide level provides insights into gene regulatory processes, such as transcription, cell differentiation and cellular response. Chromatin immunoprecipitation is the most popular and powerful approach for mapping chromatin, and other enzyme-tethering techniques have recently become available for living cells. Among these, Cleavage Under Targets and Tagmentation (CUT&Tag) is a relatively novel chromatin profiling method that has rapidly gained popularity in the field of epigenetics since 2019. It has also been widely adapted to map chromatin modifications and TFs in different species, illustrating the association of these chromatin epitopes with various physiological and pathological processes. Scalable single-cell CUT&Tag can be combined with distinct platforms to distinguish cellular identity, epigenetic features and even spatial chromatin profiling. In addition, CUT&Tag has been developed as a strategy for joint profiling of the epigenome, transcriptome or proteome on the same sample. In this review, we will mainly consolidate the applications of CUT&Tag and its derivatives on different platforms, give a detailed explanation of the pros and cons of this technique as well as the potential development trends and applications in the future.
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Affiliation(s)
- Zhijun Fu
- BGI Tech Solutions Co, Ltd. BGI-Shenzhen, Shenzhen, China
| | - Sanjie Jiang
- BGI Tech Solutions Co, Ltd. BGI-Shenzhen, Shenzhen, China
| | - Yiwen Sun
- BGI Tech Solutions Co, Ltd. BGI-Shenzhen, Shenzhen, China
| | - Shanqiao Zheng
- BGI Tech Solutions Co, Ltd. BGI-Shenzhen, Shenzhen, China
| | - Liang Zong
- BGI Tech Solutions Co, Ltd. BGI-Wuhan, Wuhan, China
| | - Peipei Li
- BGI Tech Solutions Co, Ltd. BGI-Shenzhen, Shenzhen, China
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Chen X, Yao N, Mao Y, Xiao D, Huang Y, Zhang X, Wang Y. Activation of the Wnt/β-catenin/CYP1B1 pathway alleviates oxidative stress and protects the blood-brain barrier under cerebral ischemia/reperfusion conditions. Neural Regen Res 2024; 19:1541-1547. [PMID: 38051897 PMCID: PMC10883507 DOI: 10.4103/1673-5374.386398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 06/20/2023] [Indexed: 12/07/2023] Open
Abstract
Abstract
JOURNAL/nrgr/04.03/01300535-202407000-00033/figure1/v/2023-11-20T171125Z/r/image-tiff
Accumulating evidence suggests that oxidative stress and the Wnt/β-catenin pathway participate in stroke-induced disruption of the blood-brain barrier. However, the potential links between them following ischemic stroke remain largely unknown. The present study found that cerebral ischemia leads to oxidative stress and repression of the Wnt/β-catenin pathway. Meanwhile, Wnt/β-catenin pathway activation by the pharmacological inhibitor, TWS119, relieved oxidative stress, increased the levels of cytochrome P450 1B1 (CYP1B1) and tight junction-associated proteins (zonula occludens-1 [ZO-1], occludin and claudin-5), as well as brain microvascular density in cerebral ischemia rats. Moreover, rat brain microvascular endothelial cells that underwent oxygen glucose deprivation/reoxygenation displayed intense oxidative stress, suppression of the Wnt/β-catenin pathway, aggravated cell apoptosis, downregulated CYP1B1 and tight junction protein levels, and inhibited cell proliferation and migration. Overexpression of β-catenin or knockdown of β-catenin and CYP1B1 genes in rat brain microvascular endothelial cells at least partly ameliorated or exacerbated these effects, respectively. In addition, small interfering RNA-mediated β-catenin silencing decreased CYP1B1 expression, whereas CYP1B1 knockdown did not change the levels of glycogen synthase kinase 3β, Wnt-3a, and β-catenin proteins in rat brain microvascular endothelial cells after oxygen glucose deprivation/reoxygenation. Thus, the data suggest that CYP1B1 can be regulated by Wnt/β-catenin signaling, and activation of the Wnt/β-catenin/CYP1B1 pathway contributes to alleviation of oxidative stress, increased tight junction levels, and protection of the blood-brain barrier against ischemia/hypoxia-induced injury.
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Affiliation(s)
- Xingyong Chen
- Department of Neurology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian Province, China
| | - Nannan Yao
- Department of Neurology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian Province, China
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, Hebei Province, China
| | - Yanguang Mao
- Department of Neurology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian Province, China
| | - Dongyun Xiao
- Department of Neurology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian Province, China
| | - Yiyi Huang
- Department of Neurology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian Province, China
| | - Xu Zhang
- Department of Neurology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian Province, China
| | - Yinzhou Wang
- Department of Neurology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian Province, China
- Fujian Academy of Medical Science, Fuzhou, Fujian Province, China
- Key Testing Laboratory of Fujian Province, Fuzhou, Fujian Province, China
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3
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Feng C, Tian Q, Tang X, Yu J, Li H, Geng C, Xu L. microRNA-9a-5p disrupts the ELAVL1/VEGF axis to alleviate traumatic brain injury. Exp Neurol 2024; 375:114721. [PMID: 38342180 DOI: 10.1016/j.expneurol.2024.114721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/07/2023] [Accepted: 02/08/2024] [Indexed: 02/13/2024]
Abstract
Plasma microRNA (miR)-9 has been identified as a promising diagnostic biomarker for traumatic brain injury (TBI). This study aims to investigate the possible role and mechanisms of miR-9a-5p affecting TBI. Microarray-based gene expression profiling of TBI was used for screening differentially expressed miRNAs and genes. TBI rat models were established. miR-9a-5p, ELAVL1 and VEGF expression in the brain tissue of TBI rats was detected. The relationship among miR-9a-5p, ELAVL1 and VEGF was tested. TBI modeled rats were injected with miR-9a-5p-, ELAVL1 or VEGF-related sequences to identify their effects on TBI. miR-9a-5p was poorly expressed in the brain tissue of rats with TBI. ELAVL1 was a downstream target gene of miR-9a-5p, which could negatively regulate its expression. Enforced miR-9a-5p expression prevented brain tissue damage in TBI rats by targeting ELAVL1. Meanwhile, ELAVL1 could increase the expression of VEGF, which was highly expressed in the brain tissue of rats with TBI. In addition, ectopically expressed miR-9a-5p alleviated brain tissue damage in TBI rats by downregulating the ELAVL1/VEGF axis. Overall, miR-9a-5p can potentially reduce brain tissue damage in TBI rats by targeting ELAVL1 and down-regulating VEGF expression.
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Affiliation(s)
- Chenxi Feng
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou 215000, PR China
| | - Qiuyan Tian
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou 215000, PR China
| | - Xiaojuan Tang
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou 215000, PR China
| | - Jian Yu
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou 215000, PR China
| | - Hong Li
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou 215000, PR China
| | - Changxing Geng
- School of Mechanical and Electrical Engineering, Soochow University, Suzhou 215000, PR China.
| | - Lixiao Xu
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou 215000, PR China.
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Li J, Gao P, Qin M, Wang J, Luo Y, Deng P, Hao R, Zhang L, He M, Chen C, Lu Y, Ma Q, Li M, Tan M, Wang L, Yue Y, Wang H, Tian L, Xie J, Chen M, Yu Z, Zhou Z, Pi H. Long-term cadmium exposure induces epithelial-mesenchymal transition in breast cancer cells by activating CYP1B1-mediated glutamine metabolic reprogramming in BT474 cells and MMTV-Erbb2 mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170773. [PMID: 38336054 DOI: 10.1016/j.scitotenv.2024.170773] [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: 12/07/2023] [Revised: 02/04/2024] [Accepted: 02/04/2024] [Indexed: 02/12/2024]
Abstract
Cadmium (Cd) exposure is known to enhance breast cancer (BC) progression. Cd promotes epithelial-mesenchymal transition (EMT) in BC cells, facilitating BC cell aggressiveness and invasion, but the underlying molecular mechanisms are unclear. Hence, transgenic MMTV-Erbb2 mice (6 weeks) were orally administered Cd (3.6 mg/L, approximately equal to 19.64 μΜ) for 23 weeks, and BC cells (BT474 cells) were exposed to Cd (0, 0.1, 1 or 10 μΜ) for 72 h to investigate the effect of Cd exposure on EMT in BC cells. Chronic Cd exposure dramatically expedited tumor metastasis to multiple organs; decreased E-cadherin density; and increased Vimentin, N-cadherin, ZEB1, and Twist density in the tumor tissues of MMTV-Erbb2 mice. Notably, transcriptomic analysis of BC tumors revealed cytochrome P450 1B1 (CYP1B1) as a key factor that regulates EMT progression in Cd-treated MMTV-Erbb2 mice. Moreover, Cd increased CYP1B1 expression in MMTV-Erbb2 mouse BC tumors and in BT474 cells, and CYP1B1 inhibition decreased Cd-induced BC cell malignancy and EMT in BT474 cells. Importantly, the promotion of EMT by CYP1B1 in Cd-treated BC cells was presumably controlled by glutamine metabolism. This study offers novel perspectives into the effect of environmental Cd exposure on driving BC progression and metastasis, and this study provides important guidance for comprehensively assessing the ecological and health risks of Cd.
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Affiliation(s)
- Jingdian Li
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Peng Gao
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Mingke Qin
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Junhua Wang
- Nuclear Medicine Department, General Hospital of Tibet Military Area Command, Lhasa 850000, Xizang, China
| | - Yan Luo
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Ping Deng
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Rongrong Hao
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Lei Zhang
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Mindi He
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Chunhai Chen
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Yonghui Lu
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Qinlong Ma
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Min Li
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Miduo Tan
- Department of Breast Surgery, Central Hospital of Zhuzhou City, Central South University, Zhuzhou 412000, Hunan, China
| | - Liting Wang
- Biomedical Analysis Center, Army Medical University, Chongqing 400038, China
| | - Yang Yue
- Bioinformatics Center of Academy of Military Medical Sciences, Beijing 100850, China
| | - Hui Wang
- Nuclear Medicine Department, General Hospital of Tibet Military Area Command, Lhasa 850000, Xizang, China
| | - Li Tian
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Jia Xie
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Mengyan Chen
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Zhengping Yu
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China.
| | - Zhou Zhou
- Center for Neurointelligence, School of Medicine, Chongqing University, Chongqing 400030, China.
| | - Huifeng Pi
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Army Medical University (Third Military Medical University), Chongqing 400038, China; State key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing 400038, China.
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5
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Zuo C, Fan P, Yang Y, Hu C. MiR-488-3p facilitates wound healing through CYP1B1-mediated Wnt/β-catenin signaling pathway by targeting MeCP2. J Diabetes Investig 2024; 15:145-158. [PMID: 37961023 PMCID: PMC10804895 DOI: 10.1111/jdi.14099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/15/2023] [Accepted: 09/28/2023] [Indexed: 11/15/2023] Open
Abstract
INTRODUCTION Diabetic wounds are difficult to heal, but the pathogenesis is unknown. MicroRNAs (miRNAs) are thought to play important roles in wound healing. The effect of miR-488-3p in wound healing was studied in this article. MATERIALS AND METHODS The gene methylation was measured by methylation specific PCR (MSP) assay. A dual-luciferase reporter assay was adopted to analyze the interaction between miR-488-3p and MeCP2. RESULTS Cytochrome P450 1B1 (CYP1B1) is a monooxygenase belonging to the cytochrome P450 family that aids in wound healing. Our findings showed that the miR-488-3p and CYP1B1 expression levels were much lower in wound tissues of diabetics with skin defects, but the methyl-CpG-binding protein 2 (MeCP2) level was significantly higher than that in control skin tissues. MiR-488-3p overexpression increased cell proliferation and migration, as well as HUVEC angiogenesis, while inhibiting apoptosis, according to function experiments. In vitro, MeCP2 inhibited wound healing by acting as a target of miR-488-3p. We later discovered that MeCP2 inhibited CYP1B1 expression by enhancing its methylation state. In addition, CYP1B1 knockdown inhibited wound healing. Furthermore, MeCP2 overexpression abolished the promoting effect of miR-488-3p on wound healing. It also turned out that CYP1B1 promoted wound healing by activating the Wnt4/β-catenin pathway. Animal experiments also showed that miR-488-3p overexpression could accelerate wound healing in diabetic male SD rats. CONCLUSIONS MiR-488-3p is a potential therapeutic target for diabetic wound healing since it improved wound healing by activating the CYP1B1-mediated Wnt4/-catenin signaling cascade via MeCP2.
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Affiliation(s)
- Chenchen Zuo
- Department of Plastic Surgery, Xiangya HospitalCentral South UniversityChangshaHunanChina
| | - Pengju Fan
- Department of Plastic Surgery, Xiangya HospitalCentral South UniversityChangshaHunanChina
| | - Ying Yang
- Department of Plastic Surgery, Xiangya HospitalCentral South UniversityChangshaHunanChina
| | - Chengjun Hu
- Department of Plastic Surgery, Xiangya HospitalCentral South UniversityChangshaHunanChina
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Zhang W, Xiao Y, Zhou Q, Zhu X, Zhang Y, Xiang Q, Wu S, Song X, Zhao J, Yuan R, Xiao B, Li L. KNSTRN Is a Prognostic Biomarker That Is Correlated with Immune Infiltration in Breast Cancer and Promotes Cell Cycle and Proliferation. Biochem Genet 2024:10.1007/s10528-023-10615-2. [PMID: 38198023 DOI: 10.1007/s10528-023-10615-2] [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: 09/25/2023] [Accepted: 11/29/2023] [Indexed: 01/11/2024]
Abstract
Kinetochore-localized astrin/SPAG5-binding protein (KNSTRN) promotes the progression of bladder cancer and lung adenocarcinoma. However, its expression and biological function in breast cancer remain largely unknown. Therefore, this study aimed to analyze KNSTRN expression, prognoses, correlation with immune infiltration, expression-associated genes, and regulated signaling pathways to characterize its role in regulating the cell cycle using both bioinformatics and in vitro functional experiments. Analyses of The Cancer Genome Atlas, Gene Expression Omnibus, TIMER, and The Human Protein Atlas databases revealed a significant upregulation of KNSTRN transcript and protein levels in breast cancer. Kaplan-Meier survival analyses demonstrated a significant association between high expression of KNSTRN and poor overall survival, relapse-free survival, post-progression survival, and distant metastases-free survival in patients with breast cancer. Furthermore, multivariate Cox regression analyses confirmed that KNSTRN is an independent prognostic factor for breast cancer. Immune infiltration analysis indicated a positive correlation between KNSTRN expression and T regulatory cell infiltration while showing a negative correlation with Tgd and natural killer cell infiltration. Gene set enrichment analysis along with single-cell transcriptome data analysis suggested that KNSTRN promoted cell cycle progression by regulating the expression of key cell cycle proteins. The overexpression and silencing of KNSTRN in vitro, respectively, promoted and inhibited the proliferation of breast cancer cells. The overexpression of KNSTRN enhanced the expression of key cell cycle regulators, including CDK4, CDK6, and cyclin D3, thereby accelerating the G1/S phase transition and leading to aberrant proliferation of breast cancer cells. In conclusion, our study demonstrates that KNSTRN functions as an oncogene in breast cancer by regulating immune response, promoting G1/S transition, and facilitating breast cancer cell proliferation. Moreover, KNSTRN has potential as a molecular biomarker for diagnostic and prognostic prediction in breast cancer.
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Affiliation(s)
- Wenwu Zhang
- Department of Laboratory Medicine, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
- Department of Laboratory Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215008, China
| | - Yuhan Xiao
- School of Public Health, Dali University, Dali, 671000, China
| | - Quan Zhou
- Department of Laboratory Medicine, General Hospital of Southern Theater Command of People's Liberation Army (PLA), Guangzhou, 510010, China
| | - Xin Zhu
- Department of Laboratory Medicine, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Yanxia Zhang
- Department of Laboratory Medicine, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Qin Xiang
- Department of Laboratory Medicine, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Shunhong Wu
- Department of Laboratory Medicine, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Xiaoyu Song
- Department of Laboratory Medicine, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Junxiu Zhao
- School of Public Health, Dali University, Dali, 671000, China
| | - Ruanfei Yuan
- Department of Laboratory Medicine, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Bin Xiao
- Department of Laboratory Medicine, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China.
| | - Linhai Li
- Department of Laboratory Medicine, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China.
- Department of Laboratory Medicine, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215008, China.
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7
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Liu L, Zhao WY, Zheng XY. ZNF746 promotes M2 macrophage polarisation and favours tumour progression in breast cancer via the Jagged1/Notch pathway. Cell Signal 2023; 112:110892. [PMID: 37730102 DOI: 10.1016/j.cellsig.2023.110892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/29/2023] [Accepted: 09/16/2023] [Indexed: 09/22/2023]
Abstract
Breast cancer (BC) is a major threat to women's health. BC is a heterogeneous disease and treatment strategies and outcomes differ between subtypes. Investigating the molecular mechanisms of BC will help to identify potential therapeutic targets and develop new therapies. Here we report that zinc finger protein 746 (ZNF746), a Krüppel-associated box and zinc finger protein, exhibits tumour-promoting properties in BC. Functional experiments (cell growth, colony formation, cell cycle analysis, and transwell analysis) were used to evaluate the proliferation, migration, and invasion capacity of BC cells. Immunohistochemistry was performed to detect the expression of ZNF746, CD163 (M2 macrophage marker), and HES1 (Notch target) in BC tissues. ZNF746 was highly expressed in BC tissues compared to adjacent paired non-tumour tissues. Patients with M1 BC had higher expression of ZNF746 compared to patients with non-metastatic (M0) BC, and higher expression of ZNF746 was associated with poorer overall survival. The immunohistochemical results showed a positive correlation between the expression of ZNF746 and the expression of CD163 or HES1. ZNF746 promoted BC cell proliferation, migration, and invasion and increased the expression of molecules essential for monocyte recruitment and differentiation (CCL2 and CSF1). Furthermore, THP-1 monocytes cultured in the conditioned medium derived from BC cells overexpressing ZNF746 exhibited enhanced M2 polarisation. In contrast, ZNF746 knockdown reduced BC cell proliferation, migration, and invasion and suppressed M2 polarisation. Mechanistically, ZNF746 promoted the activation of the Jagged1/Notch pathway, and the Jagged1 siRNA-mediated blockade of this pathway prevented the tumour-promoting functions of ZNF746. In conclusion, this study uncovers the role of ZNF746 in promoting M2 macrophage polarisation and suggests that ZNF746 may be a promising therapeutic target for limiting BC progression.
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Affiliation(s)
- Lu Liu
- Department of Breast Surgery, the First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Wen-Yue Zhao
- Department of Thoracic Surgery, the First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xin-Yu Zheng
- Department of Breast Surgery, the First Hospital of China Medical University, Shenyang, Liaoning, China.
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Gupta J, Ahmed AT, Tayyib NA, Zabibah RS, Shomurodov Q, Kadheim MN, Alsaikhan F, Ramaiah P, Chinnasamy L, Samarghandian S. A state-of-art of underlying molecular mechanisms and pharmacological interventions/nanotherapeutics for cisplatin resistance in gastric cancer. Biomed Pharmacother 2023; 166:115337. [PMID: 37659203 DOI: 10.1016/j.biopha.2023.115337] [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: 06/19/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 09/04/2023] Open
Abstract
The fourth common reason of death among patients is gastric cancer (GC) and it is a dominant tumor type in Ease Asia. One of the problems in GC therapy is chemoresistance. Cisplatin (CP) is a platinum compound that causes DNA damage in reducing tumor progression and viability of cancer cells. However, due to hyperactivation of drug efflux pumps, dysregulation of genes and interactions in tumor microenvironment, tumor cells can develop resistance to CP chemotherapy. The current review focuses on the CP resistance emergence in GC cells with emphasizing on molecular pathways, pharmacological compounds for reversing chemoresistance and the role of nanostructures. Changes in cell death mechanisms such as upregulation of pro-survival autophagy can prevent CP-mediated apoptosis that results in drug resistance. Moreover, increase in metastasis via EMT induction induces CP resistance. Dysregulation of molecular pathways such as PTEN, PI3K/Akt, Nrf2 and others result in changes in CP response of GC cells. Non-coding RNAs determine CP response of GC cells and application of pharmacological compounds with activity distinct of CP can result in sensitivity in tumor cells. Due to efficacy of exosomes in transferring bioactive molecules such as RNA and DNA molecules among GC cells, exosomes can also result in CP resistance. One of the newest progresses in overcoming CP resistance in GC is application of nanoplatforms for delivery of CP in GC therapy that they can increase accumulation of CP at tumor site and by suppressing carcinogenic factors and overcoming biological barriers, they increase CP toxicity on cancer cells.
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Affiliation(s)
- Jitendra Gupta
- Institute of Pharmaceutical Research, GLA University, Mathura 281406, U.P., India
| | | | - Nahla A Tayyib
- Faculty of Nursing, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Rahman S Zabibah
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Qakhramon Shomurodov
- Department of Maxillofacial Surgery, Tashkent State Dental Institute, Tashkent, Uzbekistan; Department of Scientific Affairs, Samarkand State Medical University, Samarkand, Uzbekistan
| | - Mostafai N Kadheim
- Department of Dentistry, Kut University College, Kut, Wasit 52001, Iraq; Medical Laboratory Techniques Department, Al-Farahidi University, Baghdad 10022 Iraq
| | - Fahad Alsaikhan
- College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia.
| | | | | | - Saeed Samarghandian
- Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, the Islamic Republic of Iran.
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9
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Lian B, Yan S, Li J, Bai Z, Li J. HNRNPC promotes collagen fiber alignment and immune evasion in breast cancer via activation of the VIRMA-mediated TFAP2A/DDR1 axis. Mol Med 2023; 29:103. [PMID: 37528369 PMCID: PMC10394847 DOI: 10.1186/s10020-023-00696-5] [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: 03/29/2023] [Accepted: 07/07/2023] [Indexed: 08/03/2023] Open
Abstract
BACKGROUND Cancers aggressively reorganize collagen in their microenvironment, leading to the evasion of tumor cells from immune surveillance. However, the biological significance and molecular mechanism of collagen alignment in breast cancer (BC) have not been well established. METHODS In this study, BC-related RNA-Seq data were obtained from the TCGA database to analyze the correlation between DDR1 and immune cells. Mouse BC cells EO771 were selected for in vitro validation, and dual-luciferase experiments were conducted to examine the effect of TFAP2A on DDR1 promoter transcription activity. ChIP experiments were performed to assess TFAP2A enrichment on the DDR1 promoter, while Me-RIP experiments were conducted to detect TFAP2A mRNA m6A modification levels, and PAR-CLIP experiments were conducted to determine VIRMA's binding to TFAP2A mRNA and RIP experiments to investigate HNRNPC's recognition of m6A modification on TFAP2A mRNA. Additionally, an in vivo mouse BC transplant model and the micro-physiological system was constructed for validation, and Masson staining was used to assess collagen fiber arrangement. Immunohistochemistry was conducted to identify the number of CD8-positive cells in mouse BC tumors and Collagen IV content in ECM, while CD8 + T cell migration experiments were performed to measure CD8 + T cell migration. RESULTS Bioinformatics analysis showed that DDR1 was highly expressed in BC and negatively correlated with the proportion of anti-tumor immune cell infiltration. In vitro cell experiments indicated that VIRMA, HNRNPC, TFAP2A, and DDR1 were highly expressed in BC cells. In addition, HNRNPC promoted TFAP2A expression and, therefore, DDR1 transcription by recognizing the m6A modification of TFAP2A mRNA by VIRMA. In vivo animal experiments further confirmed that VIRMA and HNRNPC enhanced the TFAP2A/DDR1 axis, promoting collagen fiber alignment, reducing anti-tumor immune cell infiltration, and promoting immune escape in BC. CONCLUSION This study demonstrated that HNRNPC promoted DDR1 transcription by recognizing VIRMA-unveiled m6A modification of TFAP2A mRNA, which enhanced collagen fiber alignment and ultimately resulted in the reduction of anti-tumor immune cell infiltration and promotion of immune escape in BC.
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Affiliation(s)
- Bin Lian
- Department of Surgical Oncology, General Hospital of Ningxia Medical University, No. 804, Shengli Street, Xingqing District, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Shuxun Yan
- Ningxia Medical University, Yinchuan, 750004, China
| | - Jiayi Li
- Northwest University for Nationalities, Lanzhou, 730030, China
| | | | - Jinping Li
- Department of Surgical Oncology, General Hospital of Ningxia Medical University, No. 804, Shengli Street, Xingqing District, Yinchuan, 750004, Ningxia Hui Autonomous Region, China.
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Chen C, Yang Y, Guo Y, He J, Chen Z, Qiu S, Zhang Y, Ding H, Pan J, Pan Y. CYP1B1 inhibits ferroptosis and induces anti-PD-1 resistance by degrading ACSL4 in colorectal cancer. Cell Death Dis 2023; 14:271. [PMID: 37059712 PMCID: PMC10104818 DOI: 10.1038/s41419-023-05803-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 04/05/2023] [Accepted: 04/06/2023] [Indexed: 04/16/2023]
Abstract
Immune checkpoint blockade (ICB) is a promising treatment strategy for colorectal cancer (CRC) patients. However, most CRC patients do not response well to ICB therapy. Increasing evidence indicates that ferroptosis plays a critical role in immunotherapy. ICB efficacy may be enhanced by inducing tumor ferroptosis. Cytochrome P450 1B1 (CYP1B1) is a metabolic enzyme that participates in arachidonic acid metabolism. However, the role of CYP1B1 in ferroptosis remains unclear. In this study, we demonstrated that CYP1B1 derived 20-HETE activated the protein kinase C pathway to increase FBXO10 expression, which in turn promoted the ubiquitination and degradation of acyl-CoA synthetase long-chain family member 4 (ACSL4), ultimately inducing tumor cells resistance to ferroptosis. Furthermore, inhibiting CYP1B1 sensitized tumor cells to anti-PD-1 antibody in a mouce model. In addition, CYP1B1 expression was negatively correlated with ACSL4 expression, and high expression indicates poor prognosis in CRC. Taken together, our work identified CYP1B1 as a potential biomarker for enhancing anti-PD-1 therapy in CRC.
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Affiliation(s)
- Congcong Chen
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Yabing Yang
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Yanguan Guo
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Jiashuai He
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Zuyang Chen
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Shenghui Qiu
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Yiran Zhang
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Hui Ding
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China.
| | - Jinghua Pan
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China.
| | - Yunlong Pan
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China.
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes. Institute of Life and Health Engineering, Jinan University, Guangzhou, China.
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11
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Li Y, Wang H, Pan Y, Wang S, Zhang Z, Zhou H, Xu M, Liu X. Identification of bicalutamide resistance-related genes and prognosis prediction in patients with prostate cancer. Front Endocrinol (Lausanne) 2023; 14:1125299. [PMID: 37143720 PMCID: PMC10151815 DOI: 10.3389/fendo.2023.1125299] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 03/30/2023] [Indexed: 05/06/2023] Open
Abstract
Background Prostate cancer (PCa) is the second most common type of cancer and the fifth leading cause of cancer-related death in men. Androgen deprivation therapy (ADT) has become the first-line therapy for inhibiting PCa progression; however, nearly all patients receiving ADT eventually progress to castrate-resistant prostate cancer. Therefore, this study aimed to identify hub genes related to bicalutamide resistance in PCa and provide new insights into endocrine therapy resistance. Methods The data were obtained from public databases. Weighted correlation network analysis was used to identify the gene modules related to bicalutamide resistance, and the relationship between the samples and disease-free survival was analyzed. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses were performed, and hub genes were identified. The LASSO algorithm was used to develop a bicalutamide resistance prognostic model in patients with PCa, which was then verified. Finally, we analyzed the tumor mutational heterogeneity and immune microenvironment in both groups. Results Two drug resistance gene modules were identified. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses revealed that both modules are involved in RNA splicing. The protein-protein interaction network identified 10 hub genes in the brown module LUC7L3, SNRNP70, PRPF3, LUC7L, CLASRP, CLK1, CLK2, U2AF1L4, NXF1, and THOC1) and 13 in the yellow module (PNN, PPWD1, SRRM2, DHX35, DMTF1, SALL4, MTA1, HDAC7, PHC1, ACIN1, HNRNPH1, DDX17, and HDAC6). The prognostic model composed of RNF207, REC8, DFNB59, HOXA2, EPOR, PILRB, LSMEM1, TCIRG1, ABTB1, ZNF276, ZNF540, and DPY19L2 could effectively predict patient prognosis. Genomic analysis revealed that the high- and low-risk groups had different mutation maps. Immune infiltration analysis showed a statistically significant difference in immune infiltration between the high- and low-risk groups, and that the high-risk group may benefit from immunotherapy. Conclusion In this study, bicalutamide resistance genes and hub genes were identified in PCa, a risk model for predicting the prognosis of patients with PCa was constructed, and the tumor mutation heterogeneity and immune infiltration in high- and low-risk groups were analyzed. These findings offer new insights into ADT resistance targets and prognostic prediction in patients with PCa.
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