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Bae SG, Yin GN, Ock J, Suh JK, Ryu JK, Park J. Single-cell transcriptome analysis of cavernous tissues reveals the key roles of pericytes in diabetic erectile dysfunction. eLife 2024; 12:RP88942. [PMID: 38856719 PMCID: PMC11164535 DOI: 10.7554/elife.88942] [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] [Indexed: 06/11/2024] Open
Abstract
Erectile dysfunction (ED) affects a significant proportion of men aged 40-70 and is caused by cavernous tissue dysfunction. Presently, the most common treatment for ED is phosphodiesterase 5 inhibitors; however, this is less effective in patients with severe vascular disease such as diabetic ED. Therefore, there is a need for development of new treatment, which requires a better understanding of the cavernous microenvironment and cell-cell communications under diabetic condition. Pericytes are vital in penile erection; however, their dysfunction due to diabetes remains unclear. In this study, we performed single-cell RNA sequencing to understand the cellular landscape of cavernous tissues and cell type-specific transcriptional changes in diabetic ED. We found a decreased expression of genes associated with collagen or extracellular matrix organization and angiogenesis in diabetic fibroblasts, chondrocytes, myofibroblasts, valve-related lymphatic endothelial cells, and pericytes. Moreover, the newly identified pericyte-specific marker, Limb Bud-Heart (Lbh), in mouse and human cavernous tissues, clearly distinguishing pericytes from smooth muscle cells. Cell-cell interaction analysis revealed that pericytes are involved in angiogenesis, adhesion, and migration by communicating with other cell types in the corpus cavernosum; however, these interactions were highly reduced under diabetic conditions. Lbh expression is low in diabetic pericytes, and overexpression of LBH prevents erectile function by regulating neurovascular regeneration. Furthermore, the LBH-interacting proteins (Crystallin Alpha B and Vimentin) were identified in mouse cavernous pericytes through LC-MS/MS analysis, indicating that their interactions were critical for maintaining pericyte function. Thus, our study reveals novel targets and insights into the pathogenesis of ED in patients with diabetes.
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Affiliation(s)
- Seo-Gyeong Bae
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST)GwangjuRepublic of Korea
| | - Guo Nan Yin
- National Research Center for Sexual Medicine and Department of Urolog, Inha University School of MedicineIncheonRepublic of Korea
| | - Jiyeon Ock
- National Research Center for Sexual Medicine and Department of Urolog, Inha University School of MedicineIncheonRepublic of Korea
| | - Jun-Kyu Suh
- National Research Center for Sexual Medicine and Department of Urolog, Inha University School of MedicineIncheonRepublic of Korea
| | - Ji-Kan Ryu
- National Research Center for Sexual Medicine and Department of Urolog, Inha University School of MedicineIncheonRepublic of Korea
- Program in Biomedical Science & Engineering, Inha UniversityIncheonRepublic of Korea
| | - Jihwan Park
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST)GwangjuRepublic of Korea
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Wu A, Zhong C, Song X, Yuan W, Tang M, Shu T, Huang H, Yang P, Liu Q. The activation of LBH-CRYAB signaling promotes cardiac protection against I/R injury by inhibiting apoptosis and ferroptosis. iScience 2024; 27:109510. [PMID: 38660406 PMCID: PMC11039335 DOI: 10.1016/j.isci.2024.109510] [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: 09/10/2023] [Revised: 12/29/2023] [Accepted: 03/13/2024] [Indexed: 04/26/2024] Open
Abstract
Myocardial ischemia-reperfusion (I/R) injury stands out among cardiovascular diseases, and current treatments are considered unsatisfactory. For cardiomyocytes (CMs) in ischemic tissues, the upregulation of Limb-bud and Heart (LBH) and αB-crystallin (CRYAB) and their subsequent downregulation in the context of cardiac fibrosis have been verified in our previous research. Here, we focused on the effects and mechanisms of activated LBH-CRYAB signaling on damaged CMs during I/R injury, and confirmed the occurrence of mitochondrial apoptosis and ferroptosis during I/R injury. The application of inhibitors, ectopic expression vectors, and knockout mouse models uniformly verified the role of LBH in alleviating both apoptosis and ferroptosis of CMs. p53 was identified as a mutual downstream effector for both LBH-CRYAB-modulated apoptosis and ferroptosis inhibition. In mouse models, LBH overexpression was confirmed to exert enhanced cardiac protection against I/R-induced apoptosis and ferroptosis, suggesting that LBH could serve as a promising target for the development of I/R therapy.
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Affiliation(s)
- Anbiao Wu
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
- Beijing Institute of Basic Medical Sciences, Beijing 100850, People’s Republic of China
| | - Chongbin Zhong
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
| | - Xudong Song
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
| | - Wen Yuan
- Experimental Animal Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
| | - Mintian Tang
- Experimental Animal Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
| | - Tao Shu
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
| | - Houda Huang
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
| | - Pingzhen Yang
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
| | - Qicai Liu
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
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Young IC, Brabletz T, Lindley LE, Abreu M, Nagathihalli N, Zaika A, Briegel KJ. Multi-cancer analysis reveals universal association of oncogenic LBH expression with DNA hypomethylation and WNT-Integrin signaling pathways. Cancer Gene Ther 2023; 30:1234-1248. [PMID: 37268816 PMCID: PMC10501907 DOI: 10.1038/s41417-023-00633-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 05/08/2023] [Accepted: 05/19/2023] [Indexed: 06/04/2023]
Abstract
Limb-Bud and Heart (LBH) is a developmental transcription co-factor deregulated in cancer, with reported oncogenic and tumor suppressive effects. However, LBH expression in most cancer types remains unknown, impeding understanding of its mechanistic function Here, we performed systematic bioinformatic and TMA analysis for LBH in >20 different cancer types. LBH was overexpressed in most cancers compared to normal tissues (>1.5-fold; p < 0.05), including colon-rectal, pancreatic, esophageal, liver, stomach, bladder, kidney, prostate, testicular, brain, head & neck cancers, and sarcoma, correlating with poor prognosis. The cancer types showing LBH downregulation were lung, melanoma, ovarian, cervical, and uterine cancer, while both LBH over- and under-expression were observed in hematopoietic malignancies. In cancers with LBH overexpression, the LBH locus was frequently hypomethylated, identifying DNA hypomethylation as a potential mechanism for LBH dysregulation. Pathway analysis identified a universal, prognostically significant correlation between LBH overexpression and the WNT-Integrin signaling pathways. Validation of the clinical association of LBH with WNT activation in gastrointestinal cancer cell lines, and in colorectal patient samples by IHC uncovered that LBH is specifically expressed in tumor cells with nuclear beta-catenin at the invasive front. Collectively, these data reveal a high degree of LBH dysregulation in cancer and establish LBH as pan-cancer biomarker for detecting WNT hyperactivation in clinical specimens.
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Affiliation(s)
- In-Chi Young
- Department of Surgery, Division of Surgical Oncology, University of Miami Miller School of Medicine, Miami, FL, USA
- Braman Family Breast Cancer Institute, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Thomas Brabletz
- Department of Experimental Medicine 1, Nikolaus-Fiebiger-Center for Molecular Medicine, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Linsey E Lindley
- Braman Family Breast Cancer Institute, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
- Graduate Program in Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Maria Abreu
- Department of Medicine, Division of Gastroenterology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Nagaraj Nagathihalli
- Department of Surgery, Division of Surgical Oncology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Alexander Zaika
- Department of Surgery, Division of Surgical Oncology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Karoline J Briegel
- Department of Surgery, Division of Surgical Oncology, University of Miami Miller School of Medicine, Miami, FL, USA.
- Braman Family Breast Cancer Institute, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA.
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Abd Talib FNA, Marzuki M, Hoe SLL. Analysis of NK-92 cytotoxicity in nasopharyngeal carcinoma cell lines and patient-derived xenografts using impedance-based growth method. Heliyon 2023; 9:e17480. [PMID: 37415945 PMCID: PMC10320316 DOI: 10.1016/j.heliyon.2023.e17480] [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: 09/05/2022] [Revised: 06/12/2023] [Accepted: 06/19/2023] [Indexed: 07/08/2023] Open
Abstract
Natural killer (NK) cells are innate immune cells that can remove viral-infected tumour cells without antigen priming. This characteristic offers NK cells an edge over other immune cells as a potential therapy for nasopharyngeal carcinoma (NPC). In this study, we report how cytotoxicity was evaluated in target NPC cell lines and patient-derived xenograft (PDX) cells with effector NK-92, a commercially available NK cell line, by using xCELLigence RTCA system (a real-time, label-free impedance-based monitoring platform). Cell viability, proliferation and cytotoxicity were examined by RTCA. Cell morphology, growth and cytotoxicity were also monitored by microscopy. RTCA and microscopy showed that both target and effector cells were able to proliferate normally and to maintain original morphology in co-culture medium as they were in their own respective culture medium. As target and effector (T:E) cell ratios increased, cell viability as measured by arbitrary cell index (CI) values in RTCA decreased in all cell lines and PDX cells. NPC PDX cells were more sensitive to the cytotoxicity effect of NK-92 cells, than the NPC cell lines. These data were substantiated by GFP-based microscopy. We have shown how the RTCA system can be used for a high throughput screening of the effects of NK cells in cancer studies to obtain data such as cell viability, proliferation and cytotoxicity.
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Deng C, Deng G, Chu H, Chen S, Chen X, Li X, He Y, Sun C, Zhang C. Construction of a hypoxia-immune-related prognostic panel based on integrated single-cell and bulk RNA sequencing analyses in gastric cancer. Front Immunol 2023; 14:1140328. [PMID: 37180146 PMCID: PMC10169567 DOI: 10.3389/fimmu.2023.1140328] [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: 01/08/2023] [Accepted: 04/12/2023] [Indexed: 05/15/2023] Open
Abstract
Introduction Gastric cancer (GC) is the fifth most common tumor, contributing to the third-highest number of cancer-related deaths. Hypoxia is a major feature of the tumor microenvironment. This study aimed to explore the influence of hypoxia in GC and establish a hypoxia-related prognostic panel. Methods The GC scRNA-seq data and bulk RNA-seq data were downloaded from the GEO and TCGA databases, respectively. AddModuleScore() and AUCell() were used to calculate module scores and fractions of enrichment for hypoxia-related gene expression in single cells. Least absolute shrinkage and selection operator cox (LASSO-COX) regression analysis was utilized to build a prognostic panel, and hub RNAs were validated by qPCR. The CIBERSORT algorithm was adopted to evaluate immune infiltration. The finding of immune infiltration was validated by a dual immunohistochemistry staining. The TIDE score, TIS score and ESTIMATE were used to evaluate the immunotherapy predictive efficacy. Results Hypoxia-related scores were the highest in fibroblasts, and 166 differentially expressed genes were identified. Five hypoxia-related genes were incorporated into the hypoxia-related prognostic panel. 4 hypoxia-related genes (including POSTN, BMP4, MXRA5 and LBH) were significantly upregulated in clinical GC samples compared with the normal group, while APOD expression decreased in GC samples. Similar results were found between cancer-associated fibroblasts (CAFs) and normal fibroblasts (NFs). A high hypoxia score was associated with advanced grade, TNM stage, N stage, and poorer prognosis. Decreased antitumor immune cells and increased cancer-promoting immune cells were found in patients with high hypoxia scores. Dual immunohistochemistry staining showed high expression of CD8 and ACTA2 in gastric cancer tissue. In addition, the high hypoxia score group possessed higher TIDE scores, indicating poor immunotherapy benefit. A high hypoxia score was also firmly related to sensitivity to chemotherapeutic drugs. Discussion This hypoxia-related prognostic panel may be effective in predicting the clinical prognosis, immune infiltrations, immunotherapy, and chemotherapy in GC.
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Affiliation(s)
- Cuncan Deng
- Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Guofei Deng
- Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Hongwu Chu
- Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Songyao Chen
- Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Xiancong Chen
- Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Xing Li
- Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Yulong He
- Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Chunhui Sun
- Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Changhua Zhang
- Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, China
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Zhao Z, Deng J, Lu M, Yang J, Chen L, Li D, Sang Y. TRIM11, a new target of p53, facilitates the migration and invasion of nasopharyngeal carcinoma cells. Mol Biol Rep 2023; 50:731-737. [PMID: 36376537 PMCID: PMC9884187 DOI: 10.1007/s11033-022-07833-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 07/29/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Although tripartite motif-containing protein 11 (TRIM11) is known to be associated with a variety of cancers, its role in nasopharyngeal carcinoma (NPC) is unclear. METHODS AND RESULTS To investigate the role of TRIM11 in NPC, TRIM11 was stably overexpressed in 6-10B and CNE2 cells with lentiviral vectors and knocked down in S18 and 5-8F cells using the CRISPR/Cas9 system. Transwell assays and wound-healing assays revealed that TRIM11 facilitated the migration and invasion of NPC cells. Mechanistically, we found that p53 inhibits TRIM11 expression by binding to its promoter. CONCLUSIONS TRIM11 may serve as a potential diagnostic marker for NPC and has a certain therapeutic value.
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Affiliation(s)
- Ziyi Zhao
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, The First Hospital of Nanchang, Nanchang, 330008, China
| | - Jinkuang Deng
- Jiangxi Engineering Laboratory for the Development and Utilisation of Agricultural Microbial Resources, College of Bioscience and Biotechnology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Ming Lu
- Department of Otolaryngology Head and Neck Surgery, The Eight Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518033, China
| | - Jun Yang
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, The First Hospital of Nanchang, Nanchang, 330008, China
| | - Linlin Chen
- The Key Laboratory of Oral Biomedicine in Jiangxi Province, Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanchang University, Nanchang, 330006, China.
| | - DianYuan Li
- Department of Cardiovascular Surgery, The Affiliated Suzhou Hospital, Nanjing Medical University, Suzhou, 215002, China.
| | - Yi Sang
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, The First Hospital of Nanchang, Nanchang, 330008, China.
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Limb-Bud and Heart (LBH) Upregulation in Cardiomyocytes under Hypoxia Promotes the Activation of Cardiac Fibroblasts via Exosome Secretion. Mediators Inflamm 2022; 2022:8939449. [PMID: 36110098 PMCID: PMC9470350 DOI: 10.1155/2022/8939449] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/08/2022] [Accepted: 08/11/2022] [Indexed: 11/23/2022] Open
Abstract
The activation of cardiac fibroblasts (CFs) after myocardial infarction (MI) is essential for post-MI infarct healing, during which the regulation of transforming growth factor beta1 (TGF-β1) signaling is predominant. We have demonstrated that TGF-β1-mediated upregulation of LBH contributes to post-MI CF activation via modulating αB-crystallin (CRYAB), after being upregulated by TGF-β1. In this study, the effect of LBH-CRYAB signaling on the cardiac microenvironment via exosome communication and the corresponding mechanisms were investigated. The upregulation of LBH and CRYAB was verified in both cardiomyocytes (CMs) and CFs in hypoxic, post-MI peri-infarct tissues. CM-derived exosomes were isolated and identified, and LBH distribution was elevated in exosomes derived from LBH-upregulated CMs under hypoxia. Treatment with LBH+ exosomes promoted cellular proliferation, differentiation, and epithelial-mesenchymal transition-like processes in CFs. Additionally, in primary LBHKO CFs, western blotting showed that LBH knockout partially inhibited TGF-β1-induced CF activation, while LBH-CRYAB signaling affected TGF-β1 expression and secretion through a positive feedback loop. The administration of a Smad3 phosphorylation inhibitor to LBHKO CFs under TGF-β1 stimulation indicated that Smad3 phosphorylation partially accounted for TGF-β1-induced LBH upregulation. In conclusion, LBH upregulation in CMs in post-MI peri-infarct areas correlated with a hypoxic cardiac microenvironment and led to elevated exosomal LBH levels, promoting the activation of recipient CFs, which brings new insights into the studies and therapeutic strategies of post-MI cardiac repair.
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Wu A, Luo N, Xu Y, Du N, Li L, Liu Q. Exosomal LBH inhibits epithelial-mesenchymal transition and angiogenesis in nasopharyngeal carcinoma via downregulating VEGFA signaling. Int J Biol Sci 2022; 18:242-260. [PMID: 34975330 PMCID: PMC8692147 DOI: 10.7150/ijbs.66506] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 10/22/2021] [Indexed: 01/18/2023] Open
Abstract
The limb-bud and heart (LBH) gene was reported to suppress nasopharyngeal carcinoma (NPC) progression in our previous study. Distant metastasis predominantly accounts for the unsatisfactory prognosis of NPC treatment, in which epithelial-mesenchymal transition (EMT) and tumor angiogenesis are of great significance. The roles of exosomes in mediating NPC progression have been highlighted in recent researches, and attempts have been made to explore the clinical application of NPC exosomes. Here we investigated the function of the LBH gene in NPC exosomes, and its potential mechanism. NPC xenografts were constructed, showing that vascular endothelial growth factor A (VEGFA) expression and neovascularity were attenuated by LBH overexpression, together with diminished EMT progression. NPC-derived exosomes were isolated, identified and applied for in vitro/in vivo experiments, and the exosomal distribution of LBH was elevated in exosomes derived from LBH-upregulated cells. Ectopic LBH, αB-crystallin (CRYAB) and VEGFA expression was induced by lentiviral infection or plasmid transfection to explore their functions in modulating EMT and angiogenesis in NPC. The addition of LBH+ NPC exosomes during a Matrigel plug assay in mice suppressed in vivo angiogenesis, and the treatment of human umbilical vein endothelial cells (HUVECs) with LBH+ NPC exosomes inhibited cellular proliferation, migration and tube formation. The interactions among LBH, CRYAB and VEGFA were confirmed by colocalization and fluorescence resonance energy transfer (FRET) assays, and extracellular VEGFA secretion from both HUVECs and NPC cells under the treatment with LBH+ NPC exosomes was diminished according to ELISA results. We concluded that exosomal LBH inhibits EMT progression and angiogenesis in the NPC microenvironment, and that its effects are partially implemented by modulation of VEGFA expression, secretion and related signaling. Thus, LBH could serve as a promising therapeutic target in VEGFA-focused NPC treatment.
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Affiliation(s)
- Anbiao Wu
- Department of Cardiology, Laboratory of Heart Center; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Zhujiang Hospital, Southern Medical University, 253# Middle Industrial Avenue, Guangzhou, PR China, 510280
| | - Ning Luo
- Key Laboratory of Nephrology, National Health Commission and Guangdong Province; Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, 151# Yanjiang Road, Guangzhou, PR China, 510080
| | - Yuling Xu
- Nanfang Hospital, the First School of Clinical Medicine, Southern Medical University, 1023# Shatai Road South, Guangzhou, PR China, 510515
| | - Nan Du
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Guangdong Key Laboratory of Nasopharyngeal Carinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, 651# Dongfeng Road East, Guangzhou, PR China, 510060
| | - Li Li
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Guangdong Key Laboratory of Nasopharyngeal Carinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, 651# Dongfeng Road East, Guangzhou, PR China, 510060
| | - Qicai Liu
- Department of Cardiology, Laboratory of Heart Center; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Zhujiang Hospital, Southern Medical University, 253# Middle Industrial Avenue, Guangzhou, PR China, 510280
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Chang KW, Hung WW, Chou CH, Tu HF, Chang SR, Liu YC, Liu CJ, Lin SC. LncRNA MIR31HG Drives Oncogenicity by Inhibiting the Limb-Bud and Heart Development Gene ( LBH) during Oral Carcinoma. Int J Mol Sci 2021; 22:ijms22168383. [PMID: 34445087 PMCID: PMC8395036 DOI: 10.3390/ijms22168383] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 07/30/2021] [Accepted: 08/03/2021] [Indexed: 11/17/2022] Open
Abstract
The miR-31 host gene (MIR31HG) encodes a long non-coding RNA (LncRNA) that harbors miR-31 in its intron 2; miR-31 promotes malignant neoplastic progression. Overexpression of MIR31HG and of miR-31 occurs during oral squamous cell carcinoma (OSCC). However, the downstream effectors modulated by MIR31HG during OSCC pathogenesis remain unclear. The present study identifies up-regulation of MIR31HG expression during the potentially premalignant disorder stage of oral carcinogenesis. The potential of MIR31HG to enhance oncogenicity and to activate Wnt and FAK was identified when there was exogenous MIR31HG expression in OSCC cells. Furthermore, OSCC cell subclones with MIR31HG deleted were established using a Crispr/Cas9 strategy. RNA sequencing data obtained from cells expressing MIR31HG, cells with MIR31HG deleted and cells with miR-31 deleted identified 17 candidate genes that seem to be modulated by MIR31HG in OSCC cells. A TCGA database algorithm pinpointed MMP1, BMP2 and Limb-Bud and Heart development (LBH) as effector genes controlled by MIR31HG during OSCC. Exogenous LBH expression decreases tumor cell invasiveness, while knockdown of LBH reverses the oncogenic suppression present in MIR31HG deletion subclones. The study provides novel insights demonstrating the contribution of the MIR31HG-LBH cascade to oral carcinogenesis.
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Affiliation(s)
- Kuo-Wei Chang
- Department of Dentistry, College of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan; (K.-W.C.); (H.-F.T.); (C.-J.L.)
- Institute of Oral Biology, College of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan; (W.-W.H.); (C.-H.C.); (S.-R.C.); (Y.-C.L.)
- Department of Stomatology, Taipei Veterans General Hospital, Taipei 112, Taiwan
| | - Wan-Wen Hung
- Institute of Oral Biology, College of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan; (W.-W.H.); (C.-H.C.); (S.-R.C.); (Y.-C.L.)
| | - Chung-Hsien Chou
- Institute of Oral Biology, College of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan; (W.-W.H.); (C.-H.C.); (S.-R.C.); (Y.-C.L.)
| | - Hsi-Feng Tu
- Department of Dentistry, College of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan; (K.-W.C.); (H.-F.T.); (C.-J.L.)
- Institute of Oral Biology, College of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan; (W.-W.H.); (C.-H.C.); (S.-R.C.); (Y.-C.L.)
- Department of Dentistry, National Yang Ming Chiao Tung Hospital, Yilan 260, Taiwan
| | - Shi-Rou Chang
- Institute of Oral Biology, College of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan; (W.-W.H.); (C.-H.C.); (S.-R.C.); (Y.-C.L.)
| | - Ying-Chieh Liu
- Institute of Oral Biology, College of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan; (W.-W.H.); (C.-H.C.); (S.-R.C.); (Y.-C.L.)
| | - Chung-Ji Liu
- Department of Dentistry, College of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan; (K.-W.C.); (H.-F.T.); (C.-J.L.)
- Department of Dentistry, Taipei MacKay Memorial Hospital, Taipei 104, Taiwan
| | - Shu-Chun Lin
- Department of Dentistry, College of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan; (K.-W.C.); (H.-F.T.); (C.-J.L.)
- Institute of Oral Biology, College of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan; (W.-W.H.); (C.-H.C.); (S.-R.C.); (Y.-C.L.)
- Department of Stomatology, Taipei Veterans General Hospital, Taipei 112, Taiwan
- Correspondence: ; Fax: +886-2-2826-4053
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Chen J, Zhan Y, Zhang R, Chen B, Huang J, Li C, Zhang W, Wang Y, Gao Y, Zheng J, Li Y. A New Prognostic Risk Signature of Eight Ferroptosis-Related Genes in the Clear Cell Renal Cell Carcinoma. Front Oncol 2021; 11:700084. [PMID: 34249761 PMCID: PMC8267866 DOI: 10.3389/fonc.2021.700084] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 06/10/2021] [Indexed: 01/03/2023] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) is the most common renal cell carcinoma and has poor prognosis in the locally advanced stage. Ferroptosis, a relatively new type of cell death, has gained significant attention in recent years. This study aimed to explore the prognostic value of ferroptosis-related genes (FRGs) in ccRCC. In this study, 50 differentially expressed FRGs between ccRCC and adjacent normal kidney tissues were identified, 26 of them correlated with overall survival (OS) (P <0.05). Eight optimal FRGs were selected by Lasso regression and multivariate Cox regression analysis, and used to construct a new prognostic risk signature to predict the prognosis of ccRCC patients. In addition, the signature passed the validation of prognostic survival analyses by a significant margin, and the risk score was identified as an independent prognostic marker via Cox regression analyses. Further studies indicated that the signature was significantly correlated with immune cell infiltration. Moreover, the levels of eight FRGs were examined in ccRCC. Collectively, the 8-FRG prognostic risk signature helps the clinicians predict the prognosis and OS of the patients, and standardize prognostic assessments.
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Affiliation(s)
- Ji Chen
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yating Zhan
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Rongrong Zhang
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Bo Chen
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Junting Huang
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chunxue Li
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Wenjie Zhang
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yajing Wang
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yuxiang Gao
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jianjian Zheng
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yeping Li
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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