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Gutiérrez-Hurtado IA, Sánchez-Méndez AD, Becerra-Loaiza DS, Rangel-Villalobos H, Torres-Carrillo N, Gallegos-Arreola MP, Aguilar-Velázquez JA. Loss of the Y Chromosome: A Review of Molecular Mechanisms, Age Inference, and Implications for Men's Health. Int J Mol Sci 2024; 25:4230. [PMID: 38673816 PMCID: PMC11050192 DOI: 10.3390/ijms25084230] [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: 03/05/2024] [Revised: 03/29/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Until a few years ago, it was believed that the gradual mosaic loss of the Y chromosome (mLOY) was a normal age-related process. However, it is now known that mLOY is associated with a wide variety of pathologies in men, such as cardiovascular diseases, neurodegenerative disorders, and many types of cancer. Nevertheless, the mechanisms that generate mLOY in men have not been studied so far. This task is of great importance because it will allow focusing on possible methods of prophylaxis or therapy for diseases associated with mLOY. On the other hand, it would allow better understanding of mLOY as a possible marker for inferring the age of male samples in cases of human identification. Due to the above, in this work, a comprehensive review of the literature was conducted, presenting the most relevant information on the possible molecular mechanisms by which mLOY is generated, as well as its implications for men's health and its possible use as a marker to infer age.
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Affiliation(s)
- Itzae Adonai Gutiérrez-Hurtado
- Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Guadalajara 44340, Jalisco, Mexico
| | - Astrid Desireé Sánchez-Méndez
- Laboratorio de Ciencias Morfológico Forenses y Medicina Molecular, Departamento de Morfología, Centro Universitario de Ciencias de la Salud, Guadalajara 44340, Jalisco, Mexico
- Doctorado en Genética Humana, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Jalisco, Mexico
| | | | - Héctor Rangel-Villalobos
- Instituto de Investigación en Genética Molecular, Departamento de Ciencias Médicas y de la Vida, Centro Universitario de la Ciénega, Universidad de Guadalajara, Ocotlán 47820, Jalisco, Mexico
| | - Norma Torres-Carrillo
- Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Jalisco, Mexico
| | - Martha Patricia Gallegos-Arreola
- División de Genética, Centro de Investigación Biomédica de Occidente (CIBO), Instituto Mexicano del Seguro Social (IMSS), Guadalajara 44340, Jalisco, Mexico
| | - José Alonso Aguilar-Velázquez
- Laboratorio de Ciencias Morfológico Forenses y Medicina Molecular, Departamento de Morfología, Centro Universitario de Ciencias de la Salud, Guadalajara 44340, Jalisco, Mexico
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Park MN, Kim SE, Choi S, Chang Y, Kim H, Lee HE, Lee SK, Sung MK, Paik HY. Sex reporting of cells used in cancer research: A systematic review. FASEB J 2024; 38:e23552. [PMID: 38498336 DOI: 10.1096/fj.202301986r] [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: 09/27/2023] [Revised: 02/10/2024] [Accepted: 02/27/2024] [Indexed: 03/20/2024]
Abstract
Sex and gender disparities in biomedical research have been emphasized to improve scientific knowledge applied for the health of both men and women. Despite sex differences in cancer incidence, prognosis, and responses to therapeutic agents, mechanistic explanations at molecular levels are far from enough. Recent studies suggested that cell sex is an important biological variable due to differences in sex chromosome gene expression and differences in events associated with developmental biology. The objective of this study was to analyze the reporting of sex of cells used in cancer research using articles published in Cancer Cell, Molecular Cancer, Journal of Hematology & Oncology, Journal for ImmunoTherapy of Cancer, and Cancer Research in 2020, and to examine whether there exists any sex bias. We found that the percentage of cells with sex notation in the article was 36.5%. Primary cells exhibited higher sex notation compared to cell lines. A higher percentage of female cells were used in cell cultures with sex notation. Also, sex-common cells omitted sex description more often compared to sex-specific cells. None of the cells isolated from embryo and esophagus reported the cell sex in the article. Our results indicate cell sex report in cancer research is limited to a small proportion of cells used in the study. These results call for acknowledging the sex of cells to increase the applicability of biomedical research discoveries.
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Affiliation(s)
- Mi-Na Park
- Department of Food and Nutrition, Seoul National University, Seoul, Republic of Korea
| | - Sung-Eun Kim
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Republic of Korea
| | - Sungin Choi
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Republic of Korea
| | - Yoomee Chang
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Republic of Korea
| | - Hyeyoon Kim
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Republic of Korea
| | - Ha-Eun Lee
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Republic of Korea
| | - Suk Kyeong Lee
- Department of Medical Life Sciences, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
- Department of Biomedicine & Health Sciences, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - Mi-Kyung Sung
- Department of Food and Nutrition, Sookmyung Women's University, Seoul, Republic of Korea
| | - Hee-Young Paik
- Department of Food and Nutrition, Seoul National University, Seoul, Republic of Korea
- Korea Center for Gendered Innovations in Science and Technology Research, Seoul, Republic of Korea
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Du M, Zhang S, Liu X, Xu C, Zhang X. Ploidy Status of Ovarian Cancer Cell Lines and Their Association with Gene Expression Profiles. Biomolecules 2023; 13:biom13010092. [PMID: 36671477 PMCID: PMC9855421 DOI: 10.3390/biom13010092] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/22/2022] [Accepted: 12/29/2022] [Indexed: 01/03/2023] Open
Abstract
As a cancer type potentially dominated by copy number variations, ovarian cancer shows hyperploid karyotypes and large-scale chromosome alterations, which might be promising biomarkers correlated with tumor metastasis and chemoresistance. Experimental studies have provided more information about the roles of aneuploids and polyploids in ovarian cancer. However, ploidy evaluation of ovarian cancer cell lines is still limited, even in some ploidy-related research. Herein, the ploidy landscape of 51 ovarian cancer cell lines from the Cancer Cell Line Encyclopedia (CCLE) were analyzed, and the ploidy statuses of 13 human ovarian cancer cell lines and 2 murine cell lines were evaluated using G-banding and flow cytometry. Most human ovarian cancer cell lines were aneuploid, with modal numbers of 52-86 and numerical complexity ranging from 5 to 12. A2780, COV434 and TOV21G were screened as diploid cell lines, with a modal number of 46, a low aneuploid score and a near-diploid ploidy value. Two murine cell lines, both OV2944-HM1 and ID-8, were near-tetraploid. Integrated information on karyotypes, aneuploid score and ploidy value supplied references for a nondiploid model construction and a parallel analysis of diploid versus aneuploid. Moreover, the gene expression profiles were compared between diploid and aneuploid cell lines. The functions of differentially expressed genes were mainly enriched in terms of protein function regulation, TGF-β signaling and cell adhesion molecules. Genes downregulated in the aneuploid group were mainly related to metabolism and protein function regulation, and genes upregulated in the aneuploid group were mainly involved in immune regulation. Differentially expressed genes were randomly distributed on all chromosomes, while chromosome 1 alteration might contribute to immune-related alterations in aneuploid cell lines. Chromosome 19 alteration might be potentially significant for aneuploid ovarian cancer cell lines and patients, which needs further verification in ploidy research.
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Affiliation(s)
- Ming Du
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200011, China
| | - Shuo Zhang
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200011, China
| | - Xiaoxia Liu
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200011, China
| | - Congjian Xu
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
- Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai 200032, China
- Correspondence: (C.X.); (X.Z.)
| | - Xiaoyan Zhang
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
- Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai 200032, China
- Correspondence: (C.X.); (X.Z.)
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Kim JY, Min K, Paik HY, Lee SK. Sex omission and male bias are still widespread in cell experiments. Am J Physiol Cell Physiol 2021; 320:C742-C749. [PMID: 33656929 DOI: 10.1152/ajpcell.00358.2020] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Integrating sex as an important biological variable is imperative to enhance the accuracy and reproducibility of cell-based studies, which provide basic information for subsequent preclinical and clinical study designs. Recently, international funding agencies and renowned journals have been attempting to integrate sex as a variable in every research step. To understand what progress has been made in reporting of cell sex in the articles published in AJP-Cell Physiology since the analysis in 2013, we examined the sex notation of the cells in relevant articles published in the same journal in 2018. Of the 107 articles reporting cell experiments, 53 reported the sex of the cells, 18 used both male and female cells, 23 used male cells only, and 12 used female cells only. Sex omission was more frequent when cell lines were used than when primary cells were used. In the articles describing experiments performed using rodent primary cells, more than half of the studies used only male cells. Our results showed an overall improvement in sex reporting for cells in AJP-Cell Physiology articles from 2013 (25%) to 2018 (50%). However, sex omission and male bias were often found still. Furthermore, the obtained results were rarely analyzed by sex even when both male and female cells were used in the experiments. To boost sex-considerate research implementation in basic biomedical studies, cooperative efforts of the research community, funders, and publishers are urged.
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Affiliation(s)
- Jun Yeob Kim
- Department of Medical Life Sciences, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kyoungmi Min
- Department of Medical Life Sciences, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hee Young Paik
- Department of Food and Nutrition, Seoul National University, Seoul, Republic of Korea
| | - Suk Kyeong Lee
- Department of Medical Life Sciences, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, Korea
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