1
|
De Florian Fania R, Bellazzo A, Collavin L. An update on the tumor-suppressive functions of the RasGAP protein DAB2IP with focus on therapeutic implications. Cell Death Differ 2024:10.1038/s41418-024-01332-3. [PMID: 38902547 DOI: 10.1038/s41418-024-01332-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 06/14/2024] [Accepted: 06/17/2024] [Indexed: 06/22/2024] Open
Abstract
The dynamic crosstalk between tumor and stromal cells is a major determinant of cancer aggressiveness. The tumor-suppressor DAB2IP (Disabled homolog 2 interacting protein) plays an important role in this context, since it modulates cell responses to multiple extracellular inputs, including inflammatory cytokines and growth factors. DAB2IP is a RasGAP and negatively controls Ras-dependent mitogenic signals. In addition, it modulates other major oncogenic pathways, including TNFα/NF-κB, WNT/β-catenin, PI3K/AKT, and androgen receptor signaling. In line with its tumor-suppressive role, DAB2IP is frequently inactivated in cancer by transcriptional and post-transcriptional mechanisms, including promoter methylation, microRNA-mediated downregulation, and protein-protein interactions. Intriguingly, some observations suggest that downregulation of DAB2IP in cells of the tumor stroma could foster establishment of a pro-metastatic microenvironment. This review summarizes recent insights into the tumor-suppressive functions of DAB2IP and the consequences of its inactivation in cancer. In particular, we explore potential approaches aimed at reactivating DAB2IP, or augmenting its expression levels, as a novel strategy in cancer treatment. We suggest that reactivation or upregulation of DAB2IP would concurrently attenuate multiple oncogenic pathways in both cancer cells and the tumor microenvironment, with implications for improved treatment of a broad spectrum of tumors.
Collapse
Affiliation(s)
| | - Arianna Bellazzo
- Unit of Immunopathology and Cancer Biomarkers, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Via Franco Gallini, 2, 33081, Aviano, Italy
| | - Licio Collavin
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy.
| |
Collapse
|
2
|
Pandya DV, Parikh RV, Gena RM, Kothari NR, Parekh PS, Chorawala MR, Jani MA, Yadav MR, Shah PA. The scaffold protein disabled 2 (DAB2) and its role in tumor development and progression. Mol Biol Rep 2024; 51:701. [PMID: 38822973 DOI: 10.1007/s11033-024-09653-9] [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: 03/29/2024] [Accepted: 05/20/2024] [Indexed: 06/03/2024]
Abstract
BACKGROUND Disabled 2 (DAB2) is a multifunctional protein that has emerged as a critical component in the regulation of tumor growth. Its dysregulation is implicated in various types of cancer, underscoring its importance in understanding the molecular mechanisms underlying tumor development and progression. This review aims to unravel the intricate molecular mechanisms by which DAB2 exerts its tumor-suppressive functions within cancer signaling pathways. METHODS AND RESULTS We conducted a comprehensive review of the literature focusing on the structure, expression, physiological functions, and tumor-suppressive roles of DAB2. We provide an overview of the structure, expression, and physiological functions of DAB2. Evidence supporting DAB2's role as a tumor suppressor is explored, highlighting its ability to inhibit cell proliferation, induce apoptosis, and modulate key signaling pathways involved in tumor suppression. The interaction between DAB2 and key oncogenes is examined, elucidating the interplay between DAB2 and oncogenic signaling pathways. We discuss the molecular mechanisms underlying DAB2-mediated tumor suppression, including its involvement in DNA damage response and repair, regulation of cell cycle progression and senescence, and modulation of epithelial-mesenchymal transition (EMT). The review explores the regulatory networks involving DAB2, covering post-translational modifications, interactions with other tumor suppressors, and integration within complex signaling networks. We also highlight the prognostic significance of DAB2 and its role in pre-clinical studies of tumor suppression. CONCLUSION This review provides a comprehensive understanding of the molecular mechanisms by which DAB2 exerts its tumor-suppressive functions. It emphasizes the significance of DAB2 in cancer signaling pathways and its potential as a target for future therapeutic interventions.
Collapse
Affiliation(s)
- Disha V Pandya
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Rajsi V Parikh
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Ruhanahmed M Gena
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Nirjari R Kothari
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Priyajeet S Parekh
- Pharmacy Practice Division, AV Pharma LLC, 1545 University Blvd N Ste A, Jacksonville, FL, 32211, USA
| | - Mehul R Chorawala
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad, Gujarat, 380009, India.
| | - Maharsh A Jani
- Pharmacy Practice Division, Anand Niketan, Shilaj, Ahmedabad, Gujarat, 380059, India
| | - Mayur R Yadav
- Department of Pharmacy Practice and Administration, Western University of Health Science, 309 E Second St, Pomona, CA, 91766, USA
| | - Palak A Shah
- Department of Pharmacology and Pharmacy Practice, K. B. Institute of Pharmaceutical Education and Research, Gandhinagar, Gujarat, 382023, India
| |
Collapse
|
3
|
Li X, Li Z, Gao Q, Peng Y, Yu Y, Hu T, Wang W. Correlation of DNA methylation of DNMT3A and TET2 with oral squamous cell carcinoma. Discov Oncol 2024; 15:15. [PMID: 38246976 PMCID: PMC10800327 DOI: 10.1007/s12672-024-00866-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 01/15/2024] [Indexed: 01/23/2024] Open
Abstract
Oral squamous cell carcinoma (OSCC) is the sixth most common malignancy worldwide. Abnormal epigenetic modifications, including DNA methylation, are hallmarks of cancer and implicated in the development of various tumors. DNA methylation is catalyzed by the DNA methyltransferase and ten-eleven translocation dioxygenase families, with DNMT3A and TET2 being the most widely studied members, respectively. The correlation of methylation β values and clinical features was conducted in patients with OSCC in The Cancer Genome Atlas database. DNA methylation and protein expression levels of DNMT3A and TET2 in tissues were analyzed with methylation-specific polymerase chain reaction (MSP) and western blotting. To evaluate the effects of DNMT3A and TET2 on the biological characteristics of OSCC, cell proliferation was assessed with 5-ethynyl-2'-deoxyuridine, and cell migration capacity was quantified with wound healing and transwell assays. A survival analysis was performed with the Kaplan-Meier approach. The correlation between different methylation β values and clinical features was revealed. MSP revealed varying methylation degrees of DNMT3A and TET2 in OSCC tissues. Furthermore, western blotting showed that the protein expression levels were significantly different in cancer and surrounding healthy tissue samples. In vitro experiments demonstrated that DNMT3A knockdown and TET2 overexpression could inhibit the proliferation and migration of OSCC. Survival analysis revealed that patients with high DNMT3A methylation levels showed higher survival rates.
Collapse
Affiliation(s)
- Xueming Li
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zaikun Li
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Qingxi Gao
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Yanan Peng
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Yang Yu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Tenglong Hu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Wei Wang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
| |
Collapse
|
4
|
Zou Q, Cao S. miR-4270 suppresses hepatocellular carcinoma progression by inhibiting DNMT3A-mediated methylation of HGFAC promoter. PeerJ 2023; 11:e16566. [PMID: 38077422 PMCID: PMC10704985 DOI: 10.7717/peerj.16566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/12/2023] [Indexed: 12/18/2023] Open
Abstract
Background miR-4270 is a regulatory factor has been linked with the progression of various cancers, such as nasopharyngeal carcinoma, hepatocellular carcinoma (HCC), and gastric cancer. However, the underlying mechanisms through which miR-4270 modulates HCC development are not fully understood. Methods miR-4270 expression levels were analyzed in various HCC cell lines and tissue samples. An online bioinformatics tool was then utilized to predict the miR-4270 target gene. The binding relationship between miR-4270 and its target gene DNMT3A was verified using dual-luciferase reporter and Ago2-RIP assays. Then, co-immunoprecipitation (Co-IP) and chromatin immunoprecipitation (ChIP) assays were conducted to investigate the association between DNMT3A and the hepatocyte growth factor activator (HGFAC) promoter region. To assess the methylation level of the HGFAC promoter, methylation-specific PCR (MSP) was employed. Furthermore, rescue analyses were carried out to evaluate the functional relevance of miR-4270 and HGFAC in the modulation of the malignant properties of HCC cells. Finally, HepG2 cells overexpressing miR-4270 were subcutaneously injected into nude mice to estimate the impact of miR-4270 on the xenograft tumor growth of HCC. Results A substantial miR-4270 downregulation was revealed in HCC patient samples and cell lines. miR-4270 upregulation suppressed both cell proliferation and invasion while promoting apoptosis. At the molecular level, miR-4270 was found to bind to the 3'untranslated region (3'UTR) of DNMT3A, thereby inhibiting DNMT3A-mediated methylation of the HGFAC promoter. Functional assays indicated that inhibition of miR-4270 stimulated HCC cell growth, an effect counteracted by overexpression of HGFAC. In vivo assays further verified that miR-4270 effectively suppressed the progression of HCC xenograft tumors. Conclusions miR-4270 was found to mitigate the malignant characteristics of HCC by inhibiting DNMT3A-mediated methylation of the HGFAC promoter, suggesting a potential therapeutic avenue for the management of HCC.
Collapse
Affiliation(s)
- Qiang Zou
- Department of Interventional Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin, China
| | - Shasha Cao
- Department of Neonatology, Zibo Maternal and Child Health Hospital, Zibo, China
| |
Collapse
|
5
|
Zhou J, Deng Z, Pei X, Lai J, Qu W. DAB2IP stabilizes p27 Kip1 via suppressing PI3K/AKT signaling in clear cell renal cell carcinoma. Funct Integr Genomics 2023; 23:326. [PMID: 37880458 DOI: 10.1007/s10142-023-01255-1] [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: 07/27/2023] [Revised: 09/28/2023] [Accepted: 10/13/2023] [Indexed: 10/27/2023]
Abstract
Renal cell carcinoma (RCC) is the most lethal of the urologic malignancies. We previously discovered that DAB2IP, a novel Ras GTPase-activating protein, was frequently epigenetically silenced in RCC, and DAB2IP loss was correlated with the overall survival of RCC patients. In this study, we determined the biological functions of DAB2IP in clear cell RCC (ccRCC) and its potential mechanisms of action. Correlations between DAB2IP expression level and ccRCC tumor size and patient survival were analyzed, and the results showed that ccRCC patients with high DAB2IP mRNA level exhibited smaller tumor size and better survival than the patients with low DAB2IP. Compared to control, DAB2IP knockdown significantly increased cell proliferation, promoted cell cycle progression in G1/S phase, and decreased p27 expression. Mechanism studies demonstrated that loss of DAB2IP promoted p27 protein phosphorylation, cytosolic sequestration, and subsequently ubiquitination-mediated degradation in ccRCC cells. Further studies confirmed that the proline-rich domain in C terminal (CPR) of DAB2IP suppressed AKT phosphorylation and p27 phosphorylation on S10. Hence, DAB2IP is essential for p27 protein stabilization in ccRCC, which is at less partly mediated by PI3K/AKT signaling pathway.
Collapse
Affiliation(s)
- Jiancheng Zhou
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Zhuo Deng
- Department of Gynecology, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Xinqi Pei
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Jiawei Lai
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Weixing Qu
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China.
| |
Collapse
|
6
|
Di W, Li X, Yang Q. Polysaccharide of Lactobacillus casei SB27 reduced colon cancer cell prognosis through mitochondrial damage by upregulation of HINT2. Asia Pac J Clin Oncol 2023; 19:e248-e257. [PMID: 36271660 DOI: 10.1111/ajco.13876] [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: 06/01/2022] [Revised: 07/13/2022] [Accepted: 09/25/2022] [Indexed: 12/01/2022]
Abstract
AIMS Colorectal cancer (CRC) is one of the most common malignant tumors worldwide. This study aimed to explore the effects of Polysaccharide of Lactobacillus casei SB27 in colon cancer and its possible mechanisms. METHODS Colon cancer was induced by giving dextran sulfate sodium and Azoxymethane. Uman Colon Cancer Cell Line (HCT)-116 cells were used to vitro model in this experiment. RESULTS Polysaccharide of L. casei SB27 reduced colon cancer in azoxymethane-dextran sulfate sodium (AOM+DSS)-induced mice. Polysaccharide of L. casei SB27 reduced colon cancer prognosis in vitro model. Polysaccharide of L. casei SB27 reduced short chain fatty acids by Bacillus coli. Polysaccharide of L. casei promoted mitochondrial damage by Calcium ion entry. Polysaccharide of L. casei induced histidine nucleotide binding protein 2/mitochondrial calcium uniporter (HINT2/MCU) signaling pathway. Immunocoprecipitation (IP) showed that HINT2 protein interlinked MCU protein. Polysaccharide of L. casei suppressed HINT2 ubiquitination. The regulation of HINT2 affected the effects of L. casei polysaccharide on colon cancer prognosis and mitochondrial damage by Calcium ion entry in vitro model. CONCLUSION In conclusion, the present report demonstrated that polysaccharide of L. casei SB27 reduced colon cancer cell prognosis through mitochondrial damage by upregulation of HINT2. Polysaccharide of L. casei SB27 might be used for colon cancer treatment and could be helpful for personalized treatment.
Collapse
Affiliation(s)
- Wei Di
- School of Food Biology, Guangdong Polytechnic of Science and Trade, Guangzhou, China
| | - Xin Li
- School of Food Biology, Guangdong Polytechnic of Science and Trade, Guangzhou, China
| | - Qiaoyi Yang
- School of Food Biology, Guangdong Polytechnic of Science and Trade, Guangzhou, China
| |
Collapse
|
7
|
Li H, Gao P, Chen H, Zhao J, Zhang X, Li G, Wang L, Qin L. HOXC13 promotes cell proliferation, metastasis and glycolysis in breast cancer by regulating DNMT3A. Exp Ther Med 2023; 26:439. [PMID: 37614427 PMCID: PMC10443053 DOI: 10.3892/etm.2023.12138] [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: 01/12/2023] [Accepted: 04/25/2023] [Indexed: 08/25/2023] Open
Abstract
Breast cancer (BC) is a life-threatening malignant tumor that affects females more commonly than males. The mechanisms underlying BC proliferation, metastasis and glycolysis require further investigation. Homeobox C13 (HOXC13) is highly expressed in BC; however, the specific mechanisms in BC are yet to be fully elucidated. Therefore, the aim of the present study was to investigate the role of HOXC13 in BC proliferation, migration, invasion and glycolysis. In the present study, the UALCAN database was used to predict the expression levels of HOXC13 in patients with BC. Western blot analysis and reverse transcription-quantitative PCR were used to determine the expression levels of HOXC13 in BC cell lines. Moreover, HOXC13 knockdown was induced using cell transfection, and the viability, proliferation and apoptosis of cells were detected using Cell Counting Kit-8, 5-ethynyl-2'-deoxyuridine staining and flow cytometry. Migration, invasion and epithelial-mesenchymal transition (EMT) were measured using wound healing assay, Transwell assay and western blotting. In addition, XF96 extracellular flux analyzer and corresponding kits were used to detect glycolysis. The JASPAR database was used to predict promoter binding sites for the transcription factors HOXC13 and DNA methyltransferase 3α (DNMT3A). HOXC13 expression was silenced and DNMT3A was simultaneously overexpressed using cell transfection. The results of the present study revealed that HOXC13 expression was significantly elevated in BC tissues and cells. Following HOXC13 knockdown in BC cells, the viability, proliferation, glycolysis, migration, invasion and EMT were significantly decreased, and apoptosis was significantly increased. In addition, HOXC13 positively regulated the transcription of DNMT3A in BC cells, thus playing a regulatory role in the malignant progression of cells. In conclusion, HOXC13 promoted cell viability, proliferation, migration, invasion, EMT and glycolysis in BC by regulating DNMT3A.
Collapse
Affiliation(s)
- Hongrui Li
- Department of Thyroid and Breast Diseases, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Department of Thyroid and Breast Diseases, Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Pengcheng Gao
- Department of Thyroid and Breast Diseases, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Department of Thyroid and Breast Diseases, Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Haifeng Chen
- Department of Thyroid and Breast Diseases, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Department of Thyroid and Breast Diseases, Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Junjie Zhao
- Department of Thyroid and Breast Diseases, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Department of Thyroid and Breast Diseases, Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Xiangzhong Zhang
- Department of Thyroid and Breast Diseases, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Department of Thyroid and Breast Diseases, Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Ganggang Li
- Department of Thyroid and Breast Diseases, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Department of Thyroid and Breast Diseases, Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Liting Wang
- Department of Thyroid and Breast Diseases, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Department of Thyroid and Breast Diseases, Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| | - Long Qin
- Department of Thyroid and Breast Diseases, Jincheng People's Hospital, Jincheng, Shanxi 048000, P.R. China
- Department of Thyroid and Breast Diseases, Jincheng Hospital Affiliated to Changzhi Medical College, Jincheng, Shanxi 048000, P.R. China
| |
Collapse
|
8
|
Šustić I, Racetin A, Vukojević K, Benzon B, Tonkić A, Šundov Ž, Puljiz M, Glavina Durdov M, Filipović N. Expression Pattern of DAB Adaptor Protein 2 in Left- and Right-Side Colorectal Carcinoma. Genes (Basel) 2023; 14:1306. [PMID: 37510211 PMCID: PMC10379130 DOI: 10.3390/genes14071306] [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: 05/20/2023] [Revised: 06/17/2023] [Accepted: 06/20/2023] [Indexed: 07/30/2023] Open
Abstract
Left-sided and right-sided colorectal cancer (L-CRC and R-CRC) have relatively different clinical pictures and pathophysiological backgrounds. The aim of this study was to investigate the presence of DAB adapter protein 2 (DAB2) as a potential molecular mechanism that contributes to this diversity in terms of malignancy and responses to therapy. The expression of the suppressor gene DAB2 in colon cancer has already been analyzed, but its significance has not been fully elucidated. Archived samples from 34 patients who underwent colon cancer surgery were included in this study, with 13 patients with low-grade CRC and 21 with high-grade CRC. Twenty of the tumors were R-CRC, while 14 were L-CRC. DAB2 expression was analyzed immunohistochemically in the tumor tissue and the colon resection margin was used as a control. Tumors were divided into L-CRC and R-CRC, with splenic flexure as the cutoff point for each side. The results showed that R-CRC had lower DAB2 protein expression compared to L-CRC (p = 0.01). High-grade tumors had reduced DAB2 expression compared to low-grade tumors (p = 0.02). These results are consistent with the analysis of DAB2 gene expression data that we exported from the TCGA Colon and Rectal Cancer Study (COADREAD). In 736 samples of colon cancer, lower DAB2 gene expression was found in R-CRC compared to L-CRC (p < 0.0001). DAB2 gene expression was significantly higher in the sigmoid colon than in the cecum and ascending colon (p < 0.01). The analysis confirmed a lower expression of the DAB2 in tumors with positive microsatellite instability (p < 0.001). In conclusion, DAB2 has a role in the biological differences between R-CRC and L-CRC and its therapeutic and diagnostic potential needs to be further examined.
Collapse
Affiliation(s)
- Ivan Šustić
- Division of Gastroenterology, Department of Internal Medicine, University Hospital of Split, Spinčićeva 1, 21000 Split, Croatia
| | - Anita Racetin
- Department of Anatomy, Histology and Embryology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia
| | - Katarina Vukojević
- Department of Anatomy, Histology and Embryology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia
| | - Benjamin Benzon
- Department of Anatomy, Histology and Embryology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia
| | - Ante Tonkić
- Division of Gastroenterology, Department of Internal Medicine, University Hospital of Split, Spinčićeva 1, 21000 Split, Croatia
- University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia
| | - Željko Šundov
- Division of Gastroenterology, Department of Internal Medicine, University Hospital of Split, Spinčićeva 1, 21000 Split, Croatia
| | - Mario Puljiz
- Clinical Department of Gynaecologic Oncology, University Hospital for Tumours, Sestre Milosrdnice University Hospital Centre, 10000 Zagreb, Croatia
| | - Merica Glavina Durdov
- Department of Pathology, Forensic Medicine and Cytology, University Hospital of Split, University of Split School of Medicine, Spinčićeva 1, 21000 Split, Croatia
| | - Natalija Filipović
- Department of Anatomy, Histology and Embryology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia
- Laboratory for Experimental Neurocardiology, Department of Anatomy, Histology and Embryology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia
| |
Collapse
|
9
|
Shi CJ, Xue ZH, Zeng WQ, Deng LQ, Pang FX, Zhang FW, Fu WM, Zhang JF. LncRNA-NEF suppressed oxaliplatin resistance and epithelial-mesenchymal transition in colorectal cancer through epigenetically inactivating MEK/ERK signaling. Cancer Gene Ther 2023:10.1038/s41417-023-00595-1. [PMID: 36782047 DOI: 10.1038/s41417-023-00595-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 01/06/2023] [Accepted: 02/01/2023] [Indexed: 02/15/2023]
Abstract
A major cause of oxaliplatin chemoresistance in colorectal cancer (CRC) is acquired epithelial-mesenchymal transition (EMT) in cancer cells, making the cancer cells easy to metastasis and recurrence. LncRNA Neighboring Enhancer of FOXA2 (lncRNA-NEF) has been characterized as a tumor suppressor to mediate cancer metastasis in multiple cancer types. However, whether it mediated the drug resistance remains unknown. In the present study, an oxaliplatin-resistant CRC cell line (SW620R) was established and lncRNA-NEF was obviously down-regulated in this resistant cell line. The further loss and gain-of-function studies demonstrated that this lncRNA suppressed oxaliplatin resistance as well as EMT programme in vitro and inhibited metastasis in vivo. Mechanistically, lncRNA-NEF epigenetically promoted the expression of DOK1 (Downstream of Tyrosine kinase 1), a negative regulator of MEK/ERK signaling, by disrupting DNA methyltransferases (DNMTs)-mediated DNA methylation. DOK1, in turn, induced the inactivation of MEK/ERK signaling, forming the lncRNA-NEF/DOK1/MEK/ERK regulatory axis to mediate oxaliplatin resistance in CRC. Collectively, our work reveals the critical function of lncRNA-NEF in mediating the oxaliplatin chemotherapy resistance in CRC, and provides a promising therapeutic strategy for CRC patients with oxaliplatin resistance.
Collapse
Affiliation(s)
- Chuan-Jian Shi
- Cancer center, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, 518000, Guangdong, PR China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, PR China
| | - Zhi-He Xue
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, PR China
| | - Wei-Qiang Zeng
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, PR China
| | - Li-Qiang Deng
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, PR China
| | - Feng-Xiang Pang
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, PR China
| | - Feng-Wei Zhang
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, PR China
| | - Wei-Ming Fu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, PR China.
| | - Jin-Fang Zhang
- Cancer center, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen, 518000, Guangdong, PR China.
| |
Collapse
|
10
|
Di W, Li X, Yang Q. Polysaccharide of L. casei SB27 reduced colon cancer cell prognosis through mitochondrial damage by up-regulation of HINT2. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2022. [DOI: 10.1016/j.jrras.2022.100470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
11
|
Fang X, Miao C, Zeng T, Chu W, Zheng Y, Sun X, Yin X, Li Y. Role of m 5 C RNA methylation regulators in colorectal cancer prognosis and immune microenvironment. J Clin Lab Anal 2022; 36:e24303. [PMID: 35212022 PMCID: PMC8993619 DOI: 10.1002/jcla.24303] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/05/2022] [Accepted: 02/07/2022] [Indexed: 12/24/2022] Open
Abstract
Background RNA modification has become one of the hot topics of research as it can be used for tumor prognosis. However, its role in various biological processes is still poorly understood. The aim of this study was to investigate the role of m5C and m1A regulators on colorectal cancer prognosis using bioinformatics tools. The association between these regulators and differences in patient survival as well as the clinicopathological characteristics and tumor immune microenvironment in colorectal cancer tissues were assessed. Methods We selected publicly available colorectal cancer data sets from The Cancer Genome Atlas and used the “limma” package in R to identify differentially expressed genes. The least absolute shrinkage and selection operator regression model was used to calculate the prognostic risk, and a risk prediction model was constructed, to help assess the prognostic values of the differentially expressed genes. Finally, using TISCH and TIMER, we assessed the extent of cellular infiltration in colorectal cancer. Results We explored NSUN6 and DNMT3A expression using UALCAN and HPA and found that their expression is significantly increased in colorectal cancer tissues and correlated with sex and TP53 mutation status. Moreover, we found NSUN6 and DNMT3A were related to the infiltration of six major immune cells, with DNMT3A being closely related to dendritic cells, CD4+ T cells, and B cells, whereas NSUN6 to B cells and CD8+ T cells. Conclusion Our findings suggest that m5C regulators can predict the clinical prognostic risk and regulate the tumor immune microenvironment in colorectal cancer.
Collapse
Affiliation(s)
- Xiaojie Fang
- Department of Anorectal Surgery, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Chenyun Miao
- Department of TCM Gynecology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Tianni Zeng
- Department of Medical Oncology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Weijian Chu
- Department of Anorectal Surgery, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Yi Zheng
- Department of Anorectal Surgery, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Xi Sun
- Department of Anorectal Surgery, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Xin Yin
- Department of Anorectal Surgery, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Yanyan Li
- Department of Anorectal Surgery, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| |
Collapse
|