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Araiza-Olivera D, Prudnikova TY, Uribe-Alvarez C, Cai KQ, Franco-Barraza J, Dones JM, Raines RT, Chernoff J. Identifying and targeting key driver genes for collagen production within the 11q13/14 breast cancer amplicon. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.27.587019. [PMID: 38586042 PMCID: PMC10996585 DOI: 10.1101/2024.03.27.587019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Genetic studies indicate that breast cancer can be divided into several basic molecular groups. One of these groups, termed IntClust-2, is characterized by amplification of a small portion of chromosome 11 and has a median survival of only five years. Several cancer-relevant genes occupy this portion of chromosome 11, and it is thought that overexpression of a combination of driver genes in this region is responsible for the poor outcome of women in this group. In this study we used a gene editing method to knock out, one by one, each of 198 genes that are located within the amplified region of chromosome 11 and determined how much each of these genes contributed to the survival of breast cancer cells. In addition to well-known drivers such as CCND1 and PAK1 , we identified two different genes ( SERPINH1 and P4HA3 ), that encode proteins involved in collagen synthesis and organization. Using both in vitro and in vivo functional analyses, we determined that P4HA3 and/or SERPINH1 provide a critical driver function on IntClust-2 basic processes, such as viability, proliferation, and migration. Inhibiting these enzymes via genetic or pharmacologic means reduced collagen synthesis and impeded oncogenic signaling transduction in cell culture models, and a small-molecule inhibitor of P4HA3 was effective in treating 11q13 tumor growth in an animal model. As collagen has a well-known association with tissue stiffness and aggressive forms of breast cancer, we believe that the two genes we identified provide an opportunity for a new therapeutic strategy in IntClust-2 breast cancers.
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Zhong J, Shen X, Zhou J, Yu H, Wang B, Sun J, Wang J, Liu F. Development and validation of a combined hypoxia and ferroptosis prognostic signature for breast cancer. Front Oncol 2023; 13:1077342. [PMID: 36998462 PMCID: PMC10043308 DOI: 10.3389/fonc.2023.1077342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 02/23/2023] [Indexed: 03/17/2023] Open
Abstract
BackgroundHypoxia is involved in tumor biological processes and disease progression. Ferroptosis, as a newly discovered programmed cell death process, is closely related to breast cancer (BC) occurrence and development. However, reliable prognostic signatures based on a combination of hypoxia and ferroptosis in BC have not been developed.MethodWe set The Cancer Genome Atlas (TCGA) breast cancer cohort as training set and the Molecular Taxonomy of Breast Cancer International Consortium (METABRIC) BC cohort as the validation set. Least Absolute Shrinkage and Selection Operator (LASSO) and COX regression approaches were used to construct ferroptosis-related genes (FRGs) and hypoxia-related genes (HRGs) prognostic signature (HFRS). The CIBERSORT algorithm and ESTIMATE score were used to explore the relationship between HFRS and tumor immune microenvironment. Immunohistochemical staining was used to detect protein expression in tissue samples. A nomogram was developed to advance the clinical application of HFRS signature.ResultsTen ferroptosis-related genes and hypoxia-related genes were screened to construct the HFRS prognostic signature in TCGA BC cohort, and the predictive capacity was verified in METABRIC BC cohort. BC patients with high-HFRS had shorter survival time, higher tumor stage, and a higher rate of positive lymph node. Moreover, high HFRS was associated with high hypoxia, ferroptosis, and immunosuppression status. A nomogram that was constructed with age, stage, and HFRS signature showed a strong prognostic capability to predict overall survival (OS) for BC patients.ConclusionWe developed a novel prognostic model with hypoxia and ferroptosis-related genes to predict OS, and characterize the immune microenvironment of BC patients, which might provide new cures for clinical decision-making and individual treatment of BC patients.
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Affiliation(s)
- Jianxin Zhong
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Breast Oncology, Peking University Cancer Hospital and Institute, Beijing, China
| | - Xi Shen
- Department of Head and Neck Oncology and Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Junjie Zhou
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heping Yu
- Department of Thyroid and Breast Surgery, Wuhan Fourth Hospital, Wuhan, China
| | - Birong Wang
- Department of Thyroid and Breast Surgery, Wuhan Fourth Hospital, Wuhan, China
| | - Jianbin Sun
- Department of Thyroid and Breast Surgery, Wuhan Fourth Hospital, Wuhan, China
| | - Jing Wang
- Department of Thoracic Surgery, Wuhan Fourth Hospital, Wuhan, China
- *Correspondence: Jing Wang, ; Feng Liu,
| | - Feng Liu
- Department of Thyroid and Breast Surgery, Wuhan Fourth Hospital, Wuhan, China
- *Correspondence: Jing Wang, ; Feng Liu,
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Zhang Z, Zhang Y, Zhang R. P4HA3 promotes clear cell renal cell carcinoma progression via the PI3K/AKT/GSK3β pathway. Med Oncol 2023; 40:70. [PMID: 36588128 DOI: 10.1007/s12032-022-01926-2] [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: 09/18/2022] [Accepted: 12/08/2022] [Indexed: 01/03/2023]
Abstract
Clear cell renal cell carcinoma (ccRCC) is the most common subtype of renal cell carcinoma. P4HA3 is a key enzyme in collagen biosynthesis and has emerged as important molecules in regulation of proliferation, invasion, and metastasis in various tumor types. The role of P4HA3 in the development of ccRCC has remained to be elucidated. Genes expression, prognostic, and enrichment analyses were carried out with bioinformatics analysis. The efficiency of P4HA3 knockdown was confirmed by real-time quantitative PCR and Western blotting. The cellular functions were analyzed by CCK-8, EdU, wound healing, and transwell assays. The levels of related proteins expression were analyzed by Western blotting. P4HA3 was highly expressed in ccRCC compared with normal tissue samples from the TCGA database. Kaplan-Meier curves results showed that the expression level of P4HA3 was significantly negatively correlated with overall survival of patients. P4HA3 expression knockdown inhibited the proliferation, migration, and invasion of ccRCC cells, as demonstrated by in vitro experiments. In addition, GSEA results revealed that P4HA3 may be related to EMT and involved in the PI3K-AKT-GSK3β pathway in ccRCC; this was tentatively confirmed through Western blotting. P4HA3 may induce ccRCC progression via the PI3K-AKT-GSK3β signaling pathway and could represent a potential therapeutic target.
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Affiliation(s)
- Zhechuan Zhang
- Department of Urology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong District, Chongqing, China
- The Second Clinical College, Chongqing Medical University, Chongqing, China
| | - Yuanfeng Zhang
- Department of Urology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong District, Chongqing, China.
| | - Ronggui Zhang
- Department of Urology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong District, Chongqing, China.
- Department of Urology, Chongqing University Central Hospital, Chongqing University, 1 Jiankang Road, Yuzhong District, Chongqing, China.
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Zhuang L, Li C, Hu X, Yang Q, Pei X, Jin G. High expression of P4HA3 in obesity: a potential therapeutic target for type 2 diabetes. Braz J Med Biol Res 2022; 55:e11741. [PMID: 35976267 PMCID: PMC9377532 DOI: 10.1590/1414-431x2022e11741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 05/19/2022] [Indexed: 11/22/2022] Open
Abstract
The aims of the present study were to evaluate the expression of prolyl 4-hydroxylase subunit alpha 3 (P4HA3) in adipocytes and adipose tissue and to explore its effect on obesity and type 2 diabetes mellitus (T2DM). We initially demonstrated that P4HA3 was significantly upregulated in the subcutaneous adipose tissue of obesity and T2DM patients, and its functional roles in adipocyte differentiation and insulin resistance were investigated using in vitro and in vivo models. The knockdown of P4HA3 inhibited adipocyte differentiation and improved insulin resistance in 3T3-L1 cells. In C57BL/6J db/db mice fed with a high fat diet (HFD), silencing P4HA3 significantly decreased fasting blood glucose and triglycerides (TG) levels, with concomitant decrease of body weight and adipose tissue weight. Further analysis showed that P4HA3 knockdown was correlated with the augmented IRS-1/PI3K/Akt/FoxO1 signaling pathway in the adipose and hepatic tissues of obese mice, which could improve hepatic glucose homeostasis and steatosis of mice. Together, our study suggested that the dysregulation of P4HA3 may contribute to the development of obesity and T2DM.
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Affiliation(s)
- Langen Zhuang
- Department of Endocrinology, The First Affiliated Hospital of
Bengbu Medical College, Bengbu, Anhui, China
| | - Can Li
- Shangyi Health Check-up Centre, Zibo, Shandong, China
| | - Xiaolei Hu
- Department of Endocrinology, The First Affiliated Hospital of
Bengbu Medical College, Bengbu, Anhui, China
| | - Qingqing Yang
- Department of Endocrinology, The First Affiliated Hospital of
Bengbu Medical College, Bengbu, Anhui, China
| | - Xiaoyan Pei
- Department of Endocrinology, The First Affiliated Hospital of
Bengbu Medical College, Bengbu, Anhui, China
| | - Guoxi Jin
- Department of Endocrinology, The First Affiliated Hospital of
Bengbu Medical College, Bengbu, Anhui, China
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Guzman NA, Guzman DE. Immunoaffinity Capillary Electrophoresis in the Era of Proteoforms, Liquid Biopsy and Preventive Medicine: A Potential Impact in the Diagnosis and Monitoring of Disease Progression. Biomolecules 2021; 11:1443. [PMID: 34680076 PMCID: PMC8533156 DOI: 10.3390/biom11101443] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/22/2021] [Accepted: 09/29/2021] [Indexed: 01/08/2023] Open
Abstract
Over the years, multiple biomarkers have been used to aid in disease screening, diagnosis, prognosis, and response to therapy. As of late, protein biomarkers are gaining strength in their role for early disease diagnosis and prognosis in part due to the advancements in identification and characterization of a distinct functional pool of proteins known as proteoforms. Proteoforms are defined as all of the different molecular forms of a protein derived from a single gene caused by genetic variations, alternative spliced RNA transcripts and post-translational modifications. Monitoring the structural changes of each proteoform of a particular protein is essential to elucidate the complex molecular mechanisms that guide the course of disease. Clinical proteomics therefore holds the potential to offer further insight into disease pathology, progression, and prevention. Nevertheless, more technologically advanced diagnostic methods are needed to improve the reliability and clinical applicability of proteomics in preventive medicine. In this manuscript, we review the use of immunoaffinity capillary electrophoresis (IACE) as an emerging powerful diagnostic tool to isolate, separate, detect and characterize proteoform biomarkers obtained from liquid biopsy. IACE is an affinity capture-separation technology capable of isolating, concentrating and analyzing a wide range of biomarkers present in biological fluids. Isolation and concentration of target analytes is accomplished through binding to one or more biorecognition affinity ligands immobilized to a solid support, while separation and analysis are achieved by high-resolution capillary electrophoresis (CE) coupled to one or more detectors. IACE has the potential to generate rapid results with significant accuracy, leading to reliability and reproducibility in diagnosing and monitoring disease. Additionally, IACE has the capability of monitoring the efficacy of therapeutic agents by quantifying companion and complementary protein biomarkers. With advancements in telemedicine and artificial intelligence, the implementation of proteoform biomarker detection and analysis may significantly improve our capacity to identify medical conditions early and intervene in ways that improve health outcomes for individuals and populations.
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Affiliation(s)
| | - Daniel E. Guzman
- Princeton Biochemicals, Inc., Princeton, NJ 08543, USA;
- Division of Hospital Medicine, Department of Medicine, University of California at San Francisco, San Francisco, CA 94143, USA
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