1
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Szabo C. Role of cystathionine-β-synthase and hydrogen sulfide in down syndrome. Neurotherapeutics 2025:e00584. [PMID: 40187942 DOI: 10.1016/j.neurot.2025.e00584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2025] [Revised: 03/15/2025] [Accepted: 03/25/2025] [Indexed: 04/07/2025] Open
Abstract
Down syndrome (DS) is a genetic condition where the person affected by it is born with an additional - full or partial - copy of chromosome 21. DS presents with characteristic morphological features and is associated with a wide range of biochemical alterations and maladaptations. Cystathionine-β-synthase (CBS) - one of the key mammalian enzymes responsible for the biogenesis of the gaseous transmitter hydrogen sulfide (H2S) - is located on chromosome 21, and people with DS exhibit a significant upregulation of this enzyme in their brain and other organs. Even though 3-mercaptopyruvate sulfurtransferase - another key mammalian enzyme responsible for the biogenesis of H2S and of reactive polysulfides - is not located on chromosome 21, there is also evidence for the upregulation of this enzyme in DS cells. The hypothesis that excess H2S in DS impairs mitochondrial function and cellular bioenergetics was first proposed in the 1990s and has been substantiated and expanded upon over the past 25 years. DS cells are in a state of metabolic suppression due to H2S-induced, reversible inhibition of mitochondrial Complex IV activity. The impairment of aerobic ATP generation in DS cells is partially compensated by an upregulation of glycolysis. The DS-associated metabolic impairment can be reversed by pharmacological CBS inhibition or CBS silencing. In rodent models of DS, CBS upregulation and H2S overproduction contribute to the development of cognitive dysfunction, alter brain electrical activity, and promote reactive gliosis: pharmacological inhibition or genetic correction of CBS overactivation reverses these alterations. CBS can be considered a preclinically validated drug target for the experimental therapy of DS.
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Affiliation(s)
- Csaba Szabo
- Section of Pharmacology, Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Switzerland.
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2
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Tang D, Chen A, Xu J, Huang Y, Fan J, Wang J, Zhu H, Pi G, Yang L, Xiong F, Luo Z, Li G, Zeng L, Zhu S. Genetic analysis of partial duplication of the long arm of chromosome 16. BMC Med Genomics 2024; 17:294. [PMID: 39716170 DOI: 10.1186/s12920-024-02059-3] [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: 09/10/2024] [Accepted: 11/27/2024] [Indexed: 12/25/2024] Open
Abstract
BACKGROUND Pure partial trisomy 16q12.1q22.1 is a rare chromosome copy number variant (CNV). The primary clinical phenotypes associated with this syndrome include abnormal facial morphology, global developmental delay (GDD), short stature, and reported predisposing factors for atypical behavior, autism, the development of learning disabilities, and neuropsychiatric disorders. The dosage-sensitive genes associated with partial trisomy are not disclosed preventing to establish a genotype-phenotype correlation. METHODS We report a case of a Chinese patient diagnosed with GDD and an abnormal facial shape, who was found to have partial trisomy 16 through karyotyping and high-throughput sequencing analysis. Karyotype and CNV tracing analyses were also conducted on the biological parents of the patient to assess for any chromosomal structural abnormalities. Additionally, we included 29 patients with pure partial trisomy 16q, reported in the DECIPHER database and the literature. We and performed a genotype-phenotype correlation analysis. RESULTS The proband, a 2-year-old female, was found to have a de novo 21.96 Mb duplication located between 16q12.1q22.1, with no other deletions observed on other chromosomes, indicating a pure partial trisomy of 16q. Through genotype and phenotype analysis of 29 individuals, we found that patients with the duplicated region located at the distal region of 16q may exhibit more severe symptoms than those with duplication at the proximal region; however, no relationship was identified between phenotype and the size of the duplicated segment. CONCLUSION We report, for the first time, a patient with partial trisomy 16q validated by multiple genetic tests, including CNV-seq, whole exome sequencing (WES), and karyotyping. It is speculated that partial trisomy of 16q may be associated with continuous gene duplication. However, functional studies are necessary to identify the causative gene or critical region linked to duplication syndrome of chromosome 16q.
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Affiliation(s)
- Dan Tang
- Department of Pediatrics, Sichuan Provincial Woman's and Children's Hospital, The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China
| | - Ai Chen
- Department of Pediatrics, The Second People's Hospital of Chengdu City, Chengdu, China
| | - Jing Xu
- Department of Pediatrics, Sichuan Provincial Woman's and Children's Hospital, The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China
| | - Yu Huang
- Department of Pediatrics, Sichuan Provincial Woman's and Children's Hospital, The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China
| | - Jun Fan
- Department of Pediatrics, Sichuan Provincial Woman's and Children's Hospital, The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China
| | - Jin Wang
- Department of Medical Genetics and Prenatal Diagnosis, Sichuan Provincial Woman's and Children's Hospital, The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China
| | - Hui Zhu
- Department of Pediatrics, Sichuan Provincial Woman's and Children's Hospital, The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China
| | - Guanghuan Pi
- Department of Pediatrics, Sichuan Provincial Woman's and Children's Hospital, The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China
| | - Li Yang
- Department of Pediatrics, Sichuan Provincial Woman's and Children's Hospital, The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China
| | - Fu Xiong
- Department of Pediatrics, Sichuan Provincial Woman's and Children's Hospital, The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China
| | - Zemin Luo
- Department of Pediatrics, Sichuan Provincial Woman's and Children's Hospital, The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China
| | - Gen Li
- Department of Medical Laboratory, Sichuan Provincial Woman's and Children's Hospital, The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China
| | - Lan Zeng
- Department of Medical Genetics and Prenatal Diagnosis, Sichuan Provincial Woman's and Children's Hospital, The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China.
| | - Shuyao Zhu
- Department of Pediatrics, Sichuan Provincial Woman's and Children's Hospital, The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China.
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3
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Siegelmann R, Siegelmann HT. Meta-Analytic Operation of Threshold-independent Filtering (MOTiF) reveals sub-threshold genomic robustness in trisomy: The Jörmungandr Effect. Biochem Biophys Res Commun 2024; 737:150802. [PMID: 39500042 DOI: 10.1016/j.bbrc.2024.150802] [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: 04/16/2024] [Revised: 08/27/2024] [Accepted: 10/08/2024] [Indexed: 11/13/2024]
Abstract
Trisomy, a form of aneuploidy wherein the cell possesses an additional copy of a specific chromosome, exhibits a high correlation with cancer. Studies from across different hosts, cell-lines, and labs into the cellular effects induced by aneuploidy have conflicted, ranging from small, chaotic global changes to large instances of either overexpression or underexpression throughout the trisomic chromosome. We ascertained that conflicting findings may be correct but miss the overarching ground truth due to injudicious use of thresholds. To correct this deficiency, we introduce the Meta-analytic Operation of Threshold-independent Filtering (MOTiF) method, which begins by providing a panoramic view of all thresholds, transforms the data to eliminate the effects accounted for by known mechanisms, and then reconstructs an explanation of the mechanisms that underly the difference between the baseline and the uncharacterized effects observed. As a proof of concept, we applied MOTiF to human colonic epithelial cells, discovering a uniform decrease in gene expression levels throughout the genome, which while significant, is beneath most common thresholds. Using Hi-C data we identified the structural correlate, wherein the physical genomic architecture condenses, compactifying in a uniform, genome-wide manner. This effect, which we dub the Jörmungandr Effect, is likely a robustness mechanism counteracting the addition of a chromosome. We were able to break down the gene expression alterations into three overlapping mechanisms: the raw chromosome content, the genomic compartmentalization, and the global structural condensation. While further studies must be conducted to corroborate the hypothesized Jörmungandr Effect, MOTiF presents a useful meta-analytic tool in the realm of gene expression and beyond.
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Affiliation(s)
- Roy Siegelmann
- Department of Applied Mathematics and Statistics Johns Hopkins University, Baltimore, MD 21218-2680, USA.
| | - Hava T Siegelmann
- Manning College of Information and Computer Sciences University of Massachusetts, Amherst Amherst, MA 01003-9264, USA.
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Regin M, Lei Y, Couvreu De Deckersberg E, Janssens C, Huyghebaert A, Guns Y, Verdyck P, Verheyen G, Van de Velde H, Sermon K, Spits C. Complex aneuploidy triggers autophagy and p53-mediated apoptosis and impairs the second lineage segregation in human preimplantation embryos. eLife 2024; 12:RP88916. [PMID: 39652462 PMCID: PMC11627504 DOI: 10.7554/elife.88916] [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] [Indexed: 12/12/2024] Open
Abstract
About 70% of human cleavage stage embryos show chromosomal mosaicism, falling to 20% in blastocysts. Chromosomally mosaic human blastocysts can implant and lead to healthy new-borns with normal karyotypes. Studies in mouse embryos and human gastruloids showed that aneuploid cells are eliminated from the epiblast by p53-mediated apoptosis while being tolerated in the trophectoderm. These observations suggest a selective loss of aneuploid cells from human embryos, but the underlying mechanisms are not yet fully understood. Here, we investigated the cellular consequences of aneuploidy in a total of 125 human blastocysts. RNA-sequencing of trophectoderm cells showed activated p53 pathway and apoptosis proportionate to the level of chromosomal imbalance. Immunostaining corroborated that aneuploidy triggers proteotoxic stress, autophagy, p53-signaling, and apoptosis independent from DNA damage. Total cell numbers were lower in aneuploid embryos, due to a decline both in trophectoderm and in epiblast/primitive endoderm cell numbers. While lower cell numbers in trophectoderm may be attributed to apoptosis, aneuploidy impaired the second lineage segregation, particularly primitive endoderm formation. This might be reinforced by retention of NANOG. Our findings might explain why fully aneuploid embryos fail to further develop and we hypothesize that the same mechanisms lead to the removal of aneuploid cells from mosaic embryos.
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Affiliation(s)
- Marius Regin
- Brussels Health Campus/Faculty of Medicine and Pharmacy, Research Group Genetics Reproduction and Development, Vrije Universiteit BrusselBrusselsBelgium
| | - Yingnan Lei
- Brussels Health Campus/Faculty of Medicine and Pharmacy, Research Group Genetics Reproduction and Development, Vrije Universiteit BrusselBrusselsBelgium
| | - Edouard Couvreu De Deckersberg
- Brussels Health Campus/Faculty of Medicine and Pharmacy, Research Group Genetics Reproduction and Development, Vrije Universiteit BrusselBrusselsBelgium
| | - Charlotte Janssens
- Brussels Health Campus/Faculty of Medicine and Pharmacy, Research Group Genetics Reproduction and Development, Vrije Universiteit BrusselBrusselsBelgium
| | - Anfien Huyghebaert
- Brussels Health Campus/Faculty of Medicine and Pharmacy, Research Group Genetics Reproduction and Development, Vrije Universiteit BrusselBrusselsBelgium
| | - Yves Guns
- Brussels Health Campus, Brussels IVF, Universitair Ziekenhuis Brussel (UZ Brussel)BrusselsBelgium
| | - Pieter Verdyck
- Brussels Health Campus/Faculty of Medicine and Pharmacy, Research Group Genetics Reproduction and Development, Vrije Universiteit BrusselBrusselsBelgium
- Brussels Health Campus, Medical Genetics, Universitair Ziekenhuis Brussel (UZ Brussel)BrusselsBelgium
| | - Greta Verheyen
- Brussels Health Campus, Brussels IVF, Universitair Ziekenhuis Brussel (UZ Brussel)BrusselsBelgium
| | - Hilde Van de Velde
- Brussels Health Campus/Faculty of Medicine and Pharmacy, Research Group Genetics Reproduction and Development, Vrije Universiteit BrusselBrusselsBelgium
- Brussels Health Campus, Brussels IVF, Universitair Ziekenhuis Brussel (UZ Brussel)BrusselsBelgium
| | - Karen Sermon
- Brussels Health Campus/Faculty of Medicine and Pharmacy, Research Group Genetics Reproduction and Development, Vrije Universiteit BrusselBrusselsBelgium
| | - Claudia Spits
- Brussels Health Campus/Faculty of Medicine and Pharmacy, Research Group Genetics Reproduction and Development, Vrije Universiteit BrusselBrusselsBelgium
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5
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Malumbres M, Villarroya-Beltri C. Mosaic variegated aneuploidy in development, ageing and cancer. Nat Rev Genet 2024; 25:864-878. [PMID: 39169218 DOI: 10.1038/s41576-024-00762-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/27/2024] [Indexed: 08/23/2024]
Abstract
Mosaic variegated aneuploidy (MVA) is a rare condition in which abnormal chromosome counts (that is, aneuploidies), affecting different chromosomes in each cell (making it variegated) are found only in a certain number of cells (making it mosaic). MVA is characterized by various developmental defects and, despite its rarity, presents a unique clinical scenario to understand the consequences of chromosomal instability and copy number variation in humans. Research from patients with MVA, genetically engineered mouse models and functional cellular studies have found the genetic causes to be mutations in components of the spindle-assembly checkpoint as well as in related proteins involved in centrosome dynamics during mitosis. MVA is accompanied by tumour susceptibility (depending on the genetic basis) as well as cellular and systemic stress, including chronic immune response and the associated clinical implications.
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Affiliation(s)
- Marcos Malumbres
- Cancer Cell Cycle Group, Systems Oncology Program, Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.
- Cell Division and Cancer Group, Spanish National Cancer Research Centre (CNIO) Madrid, Madrid, Spain.
- Catalan Institution for Research and Advanced Studies (ICREA) Barcelona, Barcelona, Spain.
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Huang T, Fakurazi S, Cheah PS, Ling KH. Chromosomal and cellular therapeutic approaches for Down syndrome: A research update. Biochem Biophys Res Commun 2024; 735:150664. [PMID: 39260337 DOI: 10.1016/j.bbrc.2024.150664] [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: 06/01/2024] [Revised: 08/20/2024] [Accepted: 09/03/2024] [Indexed: 09/13/2024]
Abstract
In individuals with Down syndrome (DS), an additional HSA21 chromosome copy leads to the overexpression of a myriad of HSA21 genes, disrupting the transcription of the entire genome. This dysregulation in transcription and post-transcriptional modifications contributes to abnormal phenotypes across nearly all tissues and organs in DS individuals. The array of severe clinical symptoms associated with trisomy 21 poses a considerable challenge in the quest for a cure for DS. Fortunately, a wealth of research suggests that chromosome therapy, hinging on cutting-edge genome editing technologies, can potentially eliminate the extra copy of the human chromosome 21. Genome editing tools have demonstrated their efficacy in restoring trisomy to a normal diploid state in vitro DS cell models. Furthermore, we delve into the noteworthy findings in cellular therapy for DS, with recent studies showcasing the increasing feasibility of strategies involving stem cells and CAR T-cells to address corresponding clinical phenotypes.
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Affiliation(s)
- Tan Huang
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Sharida Fakurazi
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Pike-See Cheah
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Malaysian Research Institute on Ageing (MyAgeing(TM)), Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - King-Hwa Ling
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Malaysian Research Institute on Ageing (MyAgeing(TM)), Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
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7
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Huang T, Lam XJ, Lim CT, Jusoh N, Fakurazi S, Cheah PS, Ling KH. Understanding perspectives and research trends in Down syndrome neuropathogenesis: A bibliometric analysis. JOURNAL OF INTELLECTUAL DISABILITIES : JOID 2024:17446295241299160. [PMID: 39533897 DOI: 10.1177/17446295241299160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2024]
Abstract
Down syndrome (DS), characterised by compromised brain development and intellectual challenges, often manifests Alzheimer's disease (AD) -like symptoms. Utilising the Web of Science Core Collection (WOSCC) database from January 1, 2000, to July 31, 2023, we conducted a comprehensive bibliometric analysis using VOSviewer, CiteSpace, and the R package "bibliometrix." Analyses included co-authorship, co-citation, co-occurrence, cooperative network, reference, and keyword burst citation. Analysing 5,082 papers, the U.S. demonstrated prominence with the highest number of research organisations and citations. Keyword analysis revealed promising research areas, including "Alzheimer's disease," "development," "inflammation," and "neurogenesis". This 22-year survey of the brain with trisomy 21 research unveils key trends, contributors, and focal areas in DS neuropathogenesis. Notably, Alzheimer 's-related genes and proteins play a pervasive role in DS neuropathological processes across patients' lifespans. The study contributes foundational knowledge for advancing research and care in the DS neuropathogenesis domain.
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Affiliation(s)
- Tan Huang
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Malaysia
| | - Xin-Jieh Lam
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Malaysia
| | - Chong-Teik Lim
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Malaysia
| | - Norhazlin Jusoh
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Malaysia
| | - Sharida Fakurazi
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Malaysia
| | - Pike-See Cheah
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Malaysia
| | - King-Hwa Ling
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Malaysia
- Malaysian Research Institute on Ageing (MyAgeing®), Universiti Putra Malaysia, Malaysia
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8
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Moustakli E, Gkountis A, Dafopoulos S, Zikopoulos A, Sotiriou S, Zachariou A, Dafopoulos K. Comparative Analysis of Fluorescence In Situ Hybridization and Next-Generation Sequencing in Sperm Evaluation: Implications for Preimplantation Genetic Testing and Male Infertility. Int J Mol Sci 2024; 25:11296. [PMID: 39457078 PMCID: PMC11508275 DOI: 10.3390/ijms252011296] [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: 08/26/2024] [Revised: 10/02/2024] [Accepted: 10/19/2024] [Indexed: 10/28/2024] Open
Abstract
Pre-implantation genetic testing (PGT) is a crucial process for selecting embryos created through assisted reproductive technology (ART). Couples with chromosomal rearrangements, infertility, recurrent miscarriages, advanced maternal age, known single-gene disorders, a family history of genetic conditions, previously affected pregnancies, poor embryo quality, or congenital anomalies may be candidates for PGT. Preimplantation genetic testing for aneuploidies (PGT-A) enables the selection and transfer of euploid embryos, significantly enhancing implantation rates in assisted reproduction. Fluorescence in situ hybridization (FISH) is the preferred method for analyzing biopsied cells to identify these abnormalities. While FISH is a well-established method for identifying sperm aneuploidy, NGS offers a more comprehensive assessment of genetic material, potentially enhancing our understanding of male infertility. Chromosomal abnormalities, arising during meiosis, can lead to aneuploid sperm, which may hinder embryo implantation and increase miscarriage rates. This review provides a comparative analysis of fluorescence in situ hybridization (FISH) and next-generation sequencing (NGS) in sperm evaluations, focusing on their implications for preimplantation genetic testing. This analysis explores the strengths and limitations of FISH and NGS, aiming to elucidate their roles in improving ART outcomes and reducing the risk of genetic disorders in offspring. Ultimately, the findings will inform best practices in sperm evaluations and preimplantation genetic testing strategies.
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Affiliation(s)
- Efthalia Moustakli
- Laboratory of Medical Genetics, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece;
| | - Antonios Gkountis
- Genesis Athens Thessaly, Centre for Human Reproduction, 41335 Larissa, Greece;
| | - Stefanos Dafopoulos
- Department of Health Sciences, European University Cyprus, 2404 Nicosia, Cyprus;
| | | | - Sotirios Sotiriou
- Department of Embryology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41110 Larissa, Greece;
| | - Athanasios Zachariou
- Department of Urology, School of Medicine, Ioannina University, 45110 Ioannina, Greece;
| | - Konstantinos Dafopoulos
- Department of Obstetrics and Gynecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41110 Larissa, Greece
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9
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Szczawińska-Popłonyk A, Popłonyk N, Awdi K. Down Syndrome in Children: A Primary Immunodeficiency with Immune Dysregulation. CHILDREN (BASEL, SWITZERLAND) 2024; 11:1251. [PMID: 39457216 PMCID: PMC11506678 DOI: 10.3390/children11101251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2024] [Revised: 10/06/2024] [Accepted: 10/13/2024] [Indexed: 10/28/2024]
Abstract
Background: The multisystemic features of Down syndrome (DS) in children are accompanied by immunodeficiency, making them susceptible to infections and immune dysregulation with autoimmune, allergic, inflammatory, and hematological complications. This study was aimed at a better understanding of the abnormalities within the B and T cell compartments and their correlations with clinical immunophenotypes. Methods: Medical records of 35 DS children were retrospectively reviewed, referring to clinical symptomatology including history of infections, immune dysregulation disorders, and humoral and cellular immune response. Results: While the etiology of respiratory tract infections included typical viral and bacterial pathogens, SARS-CoV2-induced inflammatory disease and syndromic immunodeficiency contributed significantly to the deterioration of the clinical course. Allergic diseases in the form of asthma, allergic rhinitis, and alimentary allergy were the most frequent manifestations of immune dysregulation and were followed by autoimmune disorders, such as Crohn's disease, celiac disease, autoimmune thyroiditis, and alopecia, as well as inflammatory disorders, balanitis xerotica obliterans and lymphadenopathy, and a hematological disorder of myelopoiesis. Deficiency of serum immunoglobulin levels, reduced numbers of naïve B cells, and non-switched memory B cells along with low naïve T helper cells and significantly reduced regulatory T helper cells were the most prominent immune abnormalities. Conclusions: The loss of naïveté in B and T lymphocyte compartments with a deficiency of regulatory T cells may be underpinning pathomechanisms for the skewed immune response. The clinical immunophenotype in DS is complex and represents syndromic primary immunodeficiency with immune dysregulation.
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Affiliation(s)
- Aleksandra Szczawińska-Popłonyk
- Department of Pediatric Pneumonology, Allergy and Clinical Immunology, Institute of Pediatrics, Poznań University of Medical Sciences, Szpitalna 27/33, 60-572 Poznań, Poland
| | - Natalia Popłonyk
- Student Scientific Society, Poznań University of Medical Sciences, 61-701 Poznań, Poland
| | - Karina Awdi
- Student Scientific Society, English Division, Poznań University of Medical Sciences, 61-701 Poznań, Poland
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10
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Zhakula-Kostadinova N, Taylor AM. Patterns of Aneuploidy and Signaling Consequences in Cancer. Cancer Res 2024; 84:2575-2587. [PMID: 38924459 PMCID: PMC11325152 DOI: 10.1158/0008-5472.can-24-0169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/29/2024] [Accepted: 06/20/2024] [Indexed: 06/28/2024]
Abstract
Aneuploidy, or a change in the number of whole chromosomes or chromosome arms, is a near-universal feature of cancer. Chromosomes affected by aneuploidy are not random, with observed cancer-specific and tissue-specific patterns. Recent advances in genome engineering methods have allowed the creation of models with targeted aneuploidy events. These models can be used to uncover the downstream effects of individual aneuploidies on cancer phenotypes including proliferation, apoptosis, metabolism, and immune signaling. Here, we review the current state of research into the patterns of aneuploidy in cancer and their impact on signaling pathways and biological processes.
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Affiliation(s)
- Nadja Zhakula-Kostadinova
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
- Department of Genetics and Development, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York
| | - Alison M Taylor
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
- Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York
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11
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Cardiello JF, Westfall J, Dowell R, Allen MA. Characterizing primary transcriptional responses to short term heat shock in Down syndrome. PLoS One 2024; 19:e0307375. [PMID: 39116081 PMCID: PMC11309423 DOI: 10.1371/journal.pone.0307375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 07/03/2024] [Indexed: 08/10/2024] Open
Abstract
Heat shock stress induces genome-wide changes in transcription regulation, activating a coordinated cellular response to enable survival. We noticed many heat shock genes are up-regulated in blood samples from individuals with trisomy 21. We characterized the immediate transcriptional response to heat shock of two lymphoblastoid cell lines derived from brothers with and without trisomy 21. The trisomy 21 cells displayed a more robust heat shock response after just one hour at 42°C than the matched disomic cells.
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Affiliation(s)
- Joseph F. Cardiello
- BioFrontiers Institute, University of Colorado, Boulder, CO, United States of America
- Department of Chemistry & Biochemistry, Colorado College, Colorado Springs, CO, United States of America
| | - Jessica Westfall
- Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, CO, United States of America
| | - Robin Dowell
- BioFrontiers Institute, University of Colorado, Boulder, CO, United States of America
- Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, CO, United States of America
- Linda Crnic Institute, University of Colorado, Denver, CO, United States of America
- BioFrontiers-Crnic Boulder Branch, University of Colorado, Boulder, CO, United States of America
| | - Mary Ann Allen
- BioFrontiers Institute, University of Colorado, Boulder, CO, United States of America
- Linda Crnic Institute, University of Colorado, Denver, CO, United States of America
- BioFrontiers-Crnic Boulder Branch, University of Colorado, Boulder, CO, United States of America
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12
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Horakova A, Konecna M, Anger M. Chromosome Division in Early Embryos-Is Everything under Control? And Is the Cell Size Important? Int J Mol Sci 2024; 25:2101. [PMID: 38396778 PMCID: PMC10889803 DOI: 10.3390/ijms25042101] [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: 12/22/2023] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Chromosome segregation in female germ cells and early embryonic blastomeres is known to be highly prone to errors. The resulting aneuploidy is therefore the most frequent cause of termination of early development and embryo loss in mammals. And in specific cases, when the aneuploidy is actually compatible with embryonic and fetal development, it leads to severe developmental disorders. The main surveillance mechanism, which is essential for the fidelity of chromosome segregation, is the Spindle Assembly Checkpoint (SAC). And although all eukaryotic cells carry genes required for SAC, it is not clear whether this pathway is active in all cell types, including blastomeres of early embryos. In this review, we will summarize and discuss the recent progress in our understanding of the mechanisms controlling chromosome segregation and how they might work in embryos and mammalian embryos in particular. Our conclusion from the current literature is that the early mammalian embryos show limited capabilities to react to chromosome segregation defects, which might, at least partially, explain the widespread problem of aneuploidy during the early development in mammals.
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Affiliation(s)
- Adela Horakova
- Department of Genetics and Reproductive Biotechnologies, Veterinary Research Institute, 621 00 Brno, Czech Republic
- Institute of Animal Physiology and Genetics, Czech Academy of Science, 277 21 Libechov, Czech Republic
- Faculty of Science, Masaryk University, 602 00 Brno, Czech Republic
| | - Marketa Konecna
- Department of Genetics and Reproductive Biotechnologies, Veterinary Research Institute, 621 00 Brno, Czech Republic
- Institute of Animal Physiology and Genetics, Czech Academy of Science, 277 21 Libechov, Czech Republic
- Faculty of Science, Masaryk University, 602 00 Brno, Czech Republic
| | - Martin Anger
- Department of Genetics and Reproductive Biotechnologies, Veterinary Research Institute, 621 00 Brno, Czech Republic
- Institute of Animal Physiology and Genetics, Czech Academy of Science, 277 21 Libechov, Czech Republic
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13
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Khorasani M, Alaei M. cGAS-STING and PD1/PDL-1 pathway in breast cancer: a window to new therapies. J Recept Signal Transduct Res 2024; 44:1-7. [PMID: 38470108 DOI: 10.1080/10799893.2024.2325353] [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: 10/30/2023] [Accepted: 02/23/2024] [Indexed: 03/13/2024]
Abstract
Breast cancer is a complex malignancy with diverse molecular and cellular subtypes and clinical outcomes. Despite advances in treatment, breast cancer remains a significant health challenge. However, recent advances in cancer immunotherapy have shown promising results in the treatment of breast cancer, particularly the use of inhibitors that target the immune checkpoint PD1/PDL1. Also, the cGAS-STING pathway, an important part of the innate immune response, has been considered as a major potential therapeutic target for breast cancer. In this narrative review, we provide an overview of the cGAS-STING and PD1/PDL-1 pathway in breast cancer, including their role in tumor development, progression, and response to treatment. We also discuss potential future directions for research.
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Affiliation(s)
- Milad Khorasani
- Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran
- Department of Clinical Biochemistry, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | - Maryam Alaei
- Department of Clinical Biochemistry, Mashhad University of Medical Sciences, Mashhad, Iran
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14
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Zimmer J, Mueller L, Frank-Herrmann P, Rehnitz J, Dietrich JE, Bettendorf M, Strowitzki T, Krivega M. Low androgen signaling rescues genome integrity with innate immune response by reducing fertility in humans. Cell Death Dis 2024; 15:30. [PMID: 38212646 PMCID: PMC10784536 DOI: 10.1038/s41419-023-06397-5] [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: 08/18/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 01/13/2024]
Abstract
Development of the gonads under complex androgen regulation is critical for germ cells specification. In this work we addressed the relationship between androgens and genomic integrity determining human fertility. We used different study groups: individuals with Differences of Sex Development (DSD), including Complete Androgen Insensitivity Syndrome (CAIS) due to mutated androgen receptor (AR), and men with idiopathic nonobstructive azoospermia. Both showed genome integrity status influenced by androgen signaling via innate immune response activation in blood and gonads. Whole proteome analysis connected low AR to interleukin-specific gene expression, while compromised genome stability and tumorigenesis were also supported by interferons. AR expression was associated with predominant DNA damage phenotype, that eliminated AR-positive Sertoli cells as the degeneration of gonads increased. Low AR contributed to resistance from the inhibition of DNA repair in primary leukocytes. Downregulation of androgen promoted apoptosis and specific innate immune response with higher susceptibility in cells carrying genomic instability.
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Affiliation(s)
- J Zimmer
- Research Group of Gonadal Differentiation and Embryonic Development, Department of Gynecological Endocrinology & Fertility Disorders, Women Hospital, University of Heidelberg, 69120, Heidelberg, Germany
| | - L Mueller
- Research Group of Gonadal Differentiation and Embryonic Development, Department of Gynecological Endocrinology & Fertility Disorders, Women Hospital, University of Heidelberg, 69120, Heidelberg, Germany
| | - P Frank-Herrmann
- Department of Gynecological Endocrinology & Fertility Disorders, Women Hospital, University of Heidelberg, 69120, Heidelberg, Germany
| | - J Rehnitz
- Department of Gynecological Endocrinology & Fertility Disorders, Women Hospital, University of Heidelberg, 69120, Heidelberg, Germany
| | - J E Dietrich
- Department of Gynecological Endocrinology & Fertility Disorders, Women Hospital, University of Heidelberg, 69120, Heidelberg, Germany
| | - M Bettendorf
- Division of Pediatric Endocrinology, Children's Hospital, University of Heidelberg, 69120, Heidelberg, Germany
| | - T Strowitzki
- Department of Gynecological Endocrinology & Fertility Disorders, Women Hospital, University of Heidelberg, 69120, Heidelberg, Germany
| | - M Krivega
- Research Group of Gonadal Differentiation and Embryonic Development, Department of Gynecological Endocrinology & Fertility Disorders, Women Hospital, University of Heidelberg, 69120, Heidelberg, Germany.
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15
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Boddupally K, Rani Thuraka E. Artificial intelligence for prenatal chromosome analysis. Clin Chim Acta 2024; 552:117669. [PMID: 38007058 DOI: 10.1016/j.cca.2023.117669] [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: 10/06/2023] [Revised: 11/13/2023] [Accepted: 11/15/2023] [Indexed: 11/27/2023]
Abstract
This review article delves into the rapidly advancing domain of prenatal diagnostics, with a primary focus on the detection and management of chromosomal abnormalities such as trisomy 13 ("Patau syndrome)", "trisomy 18 (Edwards syndrome)", and "trisomy 21 (Down syndrome)". The objective of the study is to examine the utilization and effectiveness of novel computational methodologies, such as "machine learning (ML)", "deep learning (DL)", and data analysis, in enhancing the detection rates and accuracy of these prenatal conditions. The contribution of the article lies in its comprehensive examination of advancements in "Non-Invasive Prenatal Testing (NIPT)", prenatal screening, genomics, and medical imaging. It highlights the potential of these techniques for prenatal diagnosis and the contributions of ML and DL to these advancements. It highlights the application of ensemble models and transfer learning to improving model performance, especially with limited datasets. This also delves into optimal feature selection and fusion of high-dimensional features, underscoring the need for future research in these areas. The review finds that ML and DL have substantially improved the detection and management of prenatal conditions, despite limitations such as small sample sizes and issues related to model generalizability. It recognizes the promising results achieved through the use of ensemble models and transfer learning in prenatal diagnostics. The review also notes the increased importance of feature selection and high-dimensional feature fusion in the development and training of predictive models. The findings underline the crucial role of AI and machine learning techniques in early detection and improved therapeutic strategies in prenatal diagnostics, highlighting a pressing need for further research in this area.
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Affiliation(s)
- Kavitha Boddupally
- JNTUH University, India; CVR College of Engineering, ECE, Hyderabad, India.
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16
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Zhang J, Mu F, Guo Z, Cai Z, Zeng X, Du L, Wang F. Chromosome analysis of foetal tissue from 1903 spontaneous abortion patients in 5 regions of China: a retrospective multicentre study. BMC Pregnancy Childbirth 2023; 23:818. [PMID: 38007414 PMCID: PMC10675863 DOI: 10.1186/s12884-023-06108-0] [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: 08/09/2023] [Accepted: 11/04/2023] [Indexed: 11/27/2023] Open
Abstract
BACKGROUND Abnormal foetal tissue chromosome karyotypes are one of the important pathogenic factors for spontaneous abortion (SA). To investigate the age and abnormal foetal karyotypes of 1903 couples who experienced SA. METHODS A retrospective multicentre study collected age and foetal tissue karyotypes CNV-seq data of 1903 SA couples from 6 hospitals in 5 regions from January 2017 to March 2022. The distribution and correlation of abnormal foetal tissue karyotypes were evaluated by using regions and age. RESULTS In our study, 1140 couples (60.5% of the total) had abnormal foetal tissue chromosome karyotypes in all regions. We found that there were differences in the number of abnormal foetal tissue chromosome karyotypes, of which the incidence of trisomy was higher. At the same time, the populations situated in the eastern region had a more triploid (15.5%) distribution, trisomy (58.1%) in the southern region, mosaicism (14.8%) and microduplication (31.7%) in the southwestern region, microdeletion (16.7%) in the northern region. There are variances across areas, and it is more common in the north. The incidence risk of prenatal chromosomal abnormalities varied according to age group. CONCLUSION The findings of this study suggest that the karyotypes of patients with abnormal foetal tissue chromosome abortion in different regions were different. Meanwhile, patients ≥ 35 years old had a higher risk of abnormal foetal tissue chromosome abortion.
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Affiliation(s)
- Jian Zhang
- Department of Reproductive Medicine, Lanzhou University Second Hospital, Lanzhou, 730030, China
| | - Fangxiang Mu
- Department of Reproductive Medicine, Lanzhou University Second Hospital, Lanzhou, 730030, China
- Obstetrics Department, First Affiliated Hospital of Chongqing Medical University, Chongqing, 400042, China
| | - Zhongjie Guo
- Obstetrics Department, Third Hospital Affiliated to Guangdong Pharmaceutical University, Guangdong, 510410, China
| | - Zhuhua Cai
- Gynaecology Department, Rui'an People's Hospital, Wenzhou, 325207, China
| | - Xianghui Zeng
- Department of Reproductive Medicine, Lanzhou University Second Hospital, Lanzhou, 730030, China
- Department of Reproductive Medicine, Qinghai Provincial People's Hospital, Xining, 810007, China
| | - Lirong Du
- Eugenics Clinical Department, Hebei Reproductive Health Hospital, Shijiazhuang, 050090, China
| | - Fang Wang
- Department of Reproductive Medicine, Lanzhou University Second Hospital, Lanzhou, 730030, China.
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17
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Zhegalova IV, Vasiluev PA, Flyamer IM, Shtompel AS, Glazyrina E, Shilova N, Minzhenkova M, Markova Z, Petrova NV, Dashinimaev EB, Razin SV, Ulianov SV. Trisomies Reorganize Human 3D Genome. Int J Mol Sci 2023; 24:16044. [PMID: 38003233 PMCID: PMC10671006 DOI: 10.3390/ijms242216044] [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: 09/06/2023] [Revised: 11/03/2023] [Accepted: 11/05/2023] [Indexed: 11/26/2023] Open
Abstract
Trisomy is the presence of one extra copy of an entire chromosome or its part in a cell nucleus. In humans, autosomal trisomies are associated with severe developmental abnormalities leading to embryonic lethality, miscarriage or pronounced deviations of various organs and systems at birth. Trisomies are characterized by alterations in gene expression level, not exclusively on the trisomic chromosome, but throughout the genome. Here, we applied the high-throughput chromosome conformation capture technique (Hi-C) to study chromatin 3D structure in human chorion cells carrying either additional chromosome 13 (Patau syndrome) or chromosome 16 and in cultured fibroblasts with extra chromosome 18 (Edwards syndrome). The presence of extra chromosomes results in systematic changes of contact frequencies between small and large chromosomes. Analyzing the behavior of individual chromosomes, we found that a limited number of chromosomes change their contact patterns stochastically in trisomic cells and that it could be associated with lamina-associated domains (LAD) and gene content. For trisomy 13 and 18, but not for trisomy 16, the proportion of compacted loci on a chromosome is correlated with LAD content. We also found that regions of the genome that become more compact in trisomic cells are enriched in housekeeping genes, indicating a possible decrease in chromatin accessibility and transcription level of these genes. These results provide a framework for understanding the mechanisms of pan-genome transcription dysregulation in trisomies in the context of chromatin spatial organization.
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Affiliation(s)
- Irina V. Zhegalova
- Center for Molecular and Cellular Biology, Skolkovo Institute of Science and Technology, 143026 Moscow, Russia
- A.A. Kharkevich Institute for Information Transmission Problems, Russian Academy of Sciences, 127051 Moscow, Russia
| | | | - Ilya M. Flyamer
- Friedrich Miescher Institute for Biomedical Research, Maulbeerstrasse 66, 4058 Basel, Switzerland
| | - Anastasia S. Shtompel
- Department of Molecular Biology, Faculty of Biology, M.V. Lomonosov Moscow State University, 119234 Moscow, Russia
- Laboratory of Structural-Functional Organization of Chromosomes, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia;
| | | | | | | | - Zhanna Markova
- Research Centre for Medical Genetics, 115522 Moscow, Russia
| | - Natalia V. Petrova
- Laboratory of Structural-Functional Organization of Chromosomes, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia;
| | - Erdem B. Dashinimaev
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Sergey V. Razin
- Department of Molecular Biology, Faculty of Biology, M.V. Lomonosov Moscow State University, 119234 Moscow, Russia
- Laboratory of Structural-Functional Organization of Chromosomes, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia;
| | - Sergey V. Ulianov
- Department of Molecular Biology, Faculty of Biology, M.V. Lomonosov Moscow State University, 119234 Moscow, Russia
- Laboratory of Structural-Functional Organization of Chromosomes, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia;
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18
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Albert O, Sun S, Huttner A, Zhang Z, Suh Y, Campisi J, Vijg J, Montagna C. Chromosome instability and aneuploidy in the mammalian brain. Chromosome Res 2023; 31:32. [PMID: 37910282 PMCID: PMC10833588 DOI: 10.1007/s10577-023-09740-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/10/2023] [Accepted: 09/15/2023] [Indexed: 11/03/2023]
Abstract
This review investigates the role of aneuploidy and chromosome instability (CIN) in the aging brain. Aneuploidy refers to an abnormal chromosomal count, deviating from the normal diploid set. It can manifest as either a deficiency or excess of chromosomes. CIN encompasses a broader range of chromosomal alterations, including aneuploidy as well as structural modifications in DNA. We provide an overview of the state-of-the-art methodologies utilized for studying aneuploidy and CIN in non-tumor somatic tissues devoid of clonally expanded populations of aneuploid cells.CIN and aneuploidy, well-established hallmarks of cancer cells, are also associated with the aging process. In non-transformed cells, aneuploidy can contribute to functional impairment and developmental disorders. Despite the importance of understanding the prevalence and specific consequences of aneuploidy and CIN in the aging brain, these aspects remain incompletely understood, emphasizing the need for further scientific investigations.This comprehensive review consolidates the present understanding, addresses discrepancies in the literature, and provides valuable insights for future research efforts.
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Affiliation(s)
- Olivia Albert
- Department of Genetics, Albert Einstein College of Medicine, New York, NY, USA
| | - Shixiang Sun
- Department of Genetics, Albert Einstein College of Medicine, New York, NY, USA
| | - Anita Huttner
- Yale Brain Tumor Center, Smilow Cancer Hospital, New Haven, CT, USA
- Department of Pathology, Yale School of Medicine, New Haven, CT, USA
| | - Zhengdong Zhang
- Department of Genetics, Albert Einstein College of Medicine, New York, NY, USA
| | - Yousin Suh
- Departments of Obstetrics and Gynecology, and Genetics and Development, Columbia University, New York, NY, USA
| | | | - Jan Vijg
- Department of Genetics, Albert Einstein College of Medicine, New York, NY, USA
- Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Ophthalmology and Visual Sciences, Albert Einstein College of Medicine, New York, NY, USA
| | - Cristina Montagna
- Department of Genetics, Albert Einstein College of Medicine, New York, NY, USA.
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA.
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19
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Zhou AS, Tucker JB, Scribano CM, Lynch AR, Carlsen CL, Pop-Vicas ST, Pattaswamy SM, Burkard ME, Weaver BA. Diverse microtubule-targeted anticancer agents kill cells by inducing chromosome missegregation on multipolar spindles. PLoS Biol 2023; 21:e3002339. [PMID: 37883329 PMCID: PMC10602348 DOI: 10.1371/journal.pbio.3002339] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 09/18/2023] [Indexed: 10/28/2023] Open
Abstract
Microtubule-targeted agents are commonly used for cancer treatment, though many patients do not benefit. Microtubule-targeted drugs were assumed to elicit anticancer activity via mitotic arrest because they cause cell death following mitotic arrest in cell culture. However, we recently demonstrated that intratumoral paclitaxel concentrations are insufficient to induce mitotic arrest and rather induce chromosomal instability (CIN) via multipolar mitotic spindles. Here, we show in metastatic breast cancer and relevant human cellular models that this mechanism is conserved among clinically useful microtubule poisons. While multipolar divisions typically produce inviable progeny, multipolar spindles can be focused into near-normal bipolar spindles at any stage of mitosis. Using a novel method to quantify the rate of CIN, we demonstrate that cell death positively correlates with net loss of DNA. Spindle focusing decreases CIN and causes resistance to diverse microtubule poisons, which can be counteracted by addition of a drug that increases CIN without affecting spindle polarity. These results demonstrate conserved mechanisms of action and resistance for diverse microtubule-targeted agents. Trial registration: clinicaltrials.gov, NCT03393741.
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Affiliation(s)
- Amber S. Zhou
- Molecular and Cellular Pharmacology Graduate Training Program, University of Wisconsin, Madison, Wisconsin, United States of America
| | - John B. Tucker
- Cancer Biology Graduate Training Program, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Christina M. Scribano
- Molecular and Cellular Pharmacology Graduate Training Program, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Andrew R. Lynch
- Cellular and Molecular Pathology Graduate Training Program, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Caleb L. Carlsen
- Cellular and Molecular Biology Graduate Training Program, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Sophia T. Pop-Vicas
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Srishrika M. Pattaswamy
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Mark E. Burkard
- Department of Medicine, University of Wisconsin, Madison, Wisconsin, United States of America
- Department of Oncology/McArdle Laboratory for Cancer Research, University of Wisconsin, Madison, Wisconsin, United States of America
- Carbone Cancer Center, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Beth A. Weaver
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, Wisconsin, United States of America
- Department of Oncology/McArdle Laboratory for Cancer Research, University of Wisconsin, Madison, Wisconsin, United States of America
- Carbone Cancer Center, University of Wisconsin, Madison, Wisconsin, United States of America
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20
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Krivega M, Zimmer J, Slezko A, Frank-Herrmann P, Rehnitz J, Hohenfellner M, Bettendorf M, Luzarowski M, Strowitzki T. Genomic instability in individuals with sex determination defects and germ cell cancer. Cell Death Discov 2023; 9:173. [PMID: 37217472 PMCID: PMC10202957 DOI: 10.1038/s41420-023-01470-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/28/2023] [Accepted: 05/12/2023] [Indexed: 05/24/2023] Open
Abstract
The ability to transmit genetic information through generations depends on the preservation of genome integrity. Genetic abnormalities affect cell differentiation, causing tissue specification defects and cancer. We addressed genomic instability in individuals with Differences of Sex Development (DSD), characterized by gonadal dysgenesis, infertility, high susceptibility for different types of cancer, especially Germ Cell Tumors (GCT), and in men with testicular GCTs. Whole proteome analysis of leukocytes, supported by specific gene expression assessment, and dysgenic gonads characterization, uncovered DNA damage phenotypes with altered innate immune response and autophagy. Further examination of DNA damage response revealed a reliance on deltaTP53, which was compromised by mutations in the transactivation domain in DSD-individuals with GCT. Accordingly, drug-induced rescue of DNA damage was achieved by autophagy inhibition but not by stabilization of TP53 in DSD-individuals' blood in vitro. This study elucidates possibilities for prophylactic treatments of DSD-individuals, as well as new diagnostic approaches of GCT.
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Affiliation(s)
- Maria Krivega
- Research Group of Gonadal Differentiation and Embryonic Development, Department of Gynecological Endocrinology & Fertility Disorders, Women Hospital, University of Heidelberg, 69120, Heidelberg, Germany.
| | - Jutta Zimmer
- Research Group of Gonadal Differentiation and Embryonic Development, Department of Gynecological Endocrinology & Fertility Disorders, Women Hospital, University of Heidelberg, 69120, Heidelberg, Germany
| | - Anna Slezko
- Research Group of Gonadal Differentiation and Embryonic Development, Department of Gynecological Endocrinology & Fertility Disorders, Women Hospital, University of Heidelberg, 69120, Heidelberg, Germany
| | - Petra Frank-Herrmann
- Department of Gynecological Endocrinology & Fertility Disorders, Women Hospital, University of Heidelberg, 69120, Heidelberg, Germany
| | - Julia Rehnitz
- Department of Gynecological Endocrinology & Fertility Disorders, Women Hospital, University of Heidelberg, 69120, Heidelberg, Germany
| | - Markus Hohenfellner
- Department of Urology, University Hospital Heidelberg, 69120, Heidelberg, Germany
| | - Markus Bettendorf
- Division of Pediatric Endocrinology, Children's Hospital, University of Heidelberg, 69120, Heidelberg, Germany
| | - Marcin Luzarowski
- Core Facility for Mass Spectrometry & Proteomics, ZMBH, University of Heidelberg, 69120, Heidelberg, Germany
| | - Thomas Strowitzki
- Department of Gynecological Endocrinology & Fertility Disorders, Women Hospital, University of Heidelberg, 69120, Heidelberg, Germany
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