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Rey-Vargas L, Bejarano-Rivera LM, Serrano-Gómez SJ. Genetic ancestry is related to potential sources of breast cancer health disparities among Colombian women. PLoS One 2024; 19:e0306037. [PMID: 38935662 PMCID: PMC11210782 DOI: 10.1371/journal.pone.0306037] [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: 05/11/2023] [Accepted: 06/09/2024] [Indexed: 06/29/2024] Open
Abstract
Breast cancer health disparities are linked to clinical-pathological determinants, socioeconomic inequities, and biological factors such as genetic ancestry. These factors collectively interact in complex ways, influencing disease behavior, especially among highly admixed populations like Colombians. In this study, we assessed contributing factors to breast cancer health disparities according to genetic ancestry in Colombian patients from a national cancer reference center. We collected non-tumoral paraffin embedded (FFPE) blocks from 361 women diagnosed with breast cancer at the National Cancer Institute (NCI) to estimate genetic ancestry using a 106-ancestry informative marker (AIM) panel. Differences in European, Indigenous American (IA) and African ancestry fractions were analyzed according to potential sources of breast cancer health disparities, like etiology, tumor-biology, treatment administration, and socioeconomic-related factors using a Kruskal-Wallis test. Our analysis revealed a significantly higher IA ancestry among overweight patients with larger tumors and those covered by a subsidized health insurance. Conversely, we found a significantly higher European ancestry among patients with smaller tumors, residing in middle-income households, and affiliated to the contributory health regime, whereas a higher median of African ancestry was observed among patients with either a clinical, pathological, or stable response to neoadjuvant treatment. Altogether, our results suggest that the genetic legacy among Colombian patients, measured as genetic ancestry fractions, may be reflected in many of the clinical-pathological variables and socioeconomic factors that end up contributing to health disparities for this disease.
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Affiliation(s)
- Laura Rey-Vargas
- National Cancer Institute, Cancer Biology Research Group, Bogotá, D.C, Colombia
- Doctoral Program in Biological Sciences, Pontificia Universidad Javeriana, Bogotá, D.C, Colombia
| | | | - Silvia J. Serrano-Gómez
- National Cancer Institute, Cancer Biology Research Group, Bogotá, D.C, Colombia
- National Cancer Institute, Research Support and Follow-Up Group, Bogotá, D.C, Colombia
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2
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Felici A, Peduzzi G, Giorgolo F, Spinelli A, Calderisi M, Monreale A, Farinella R, Pellungrini R, Canzian F, Campa D. The local environment and germline genetic variation predict cancer risk in the UK Biobank prospective cohort. ENVIRONMENTAL RESEARCH 2024; 241:117562. [PMID: 37944693 DOI: 10.1016/j.envres.2023.117562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND There is a growing body of evidence on the effect of the local environment exposure on cancer susceptibility. Nonetheless, several of the associations remain controversial. Moreover, our understanding of the possible interaction between the local environment and the genetic variability is still very limited. OBJECTIVE The aim of this study was to clarify the role of the local environment and its possible interplay with genetics on common cancers development. METHODS Using the UK Biobank (UKBB) prospective cohort, we selected 12 local environment exposures: nitrogen oxides, nitrogen dioxides, particulate matter (10 and 2.5 μm), noise pollution, urban traffic, living distance from the coast, percentage of greenspace, natural environment, water, and domestic garden within 1000 m from the residential coordinates of each participant. All these exposures were tested for association with 17 different types of cancer for a total of 53,270 cases and 302,645 controls. Additionally, a polygenic score (PGS) was computed for each cancer, to test possible gene-environment interactions. Finally, mediation analyses were carried out. RESULTS Thirty-six statistically significant associations considering multiple testing (p < 2.19 × 10-4) were observed. Among the novel associations we observed that individuals living farther from the coast had a higher risk of developing prostate cancer (OR = 1.13, CI95% = 1.06-1.20, P = 1.98 × 10-4). This association was partially mediated by physical activity (indirect effect (IE) = -8.48 × 10-7) and the time spent outdoor (IE = 9.07 × 10-6). All PGSs showed statistically significant associations. Finally, genome-environment interaction analysis showed that local environment and genetic variability affect cancer risk independently. DISCUSSION Living close to the coast and air pollution were associated with a decreased risk of prostate cancer and skin melanoma, respectively. These findings from the UKBB support the role of the local environment on cancer development, which is independent from genetics and may be mediated by several lifestyle factors.
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Affiliation(s)
| | | | | | | | | | - Anna Monreale
- Department of Computer Science, University of Pisa, Pisa, Italy
| | | | | | - Federico Canzian
- Genomic Epidemiology Group, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Daniele Campa
- Department of Biology, University of Pisa, Pisa, Italy.
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3
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Zollner L, Torres D, Briceno I, Gilbert M, Torres-Mejía G, Dennis J, Bolla MK, Wang Q, Hamann U, Lorenzo Bermejo J. Native American ancestry and breast cancer risk in Colombian and Mexican women: ruling out potential confounding through ancestry-informative markers. Breast Cancer Res 2023; 25:111. [PMID: 37784177 PMCID: PMC10544431 DOI: 10.1186/s13058-023-01713-5] [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: 05/31/2023] [Accepted: 09/18/2023] [Indexed: 10/04/2023] Open
Abstract
BACKGROUND Latin American and Hispanic women are less likely to develop breast cancer (BC) than women of European descent. Observational studies have found an inverse relationship between the individual proportion of Native American ancestry and BC risk. Here, we use ancestry-informative markers to rule out potential confounding of this relationship, estimating the confounder-free effect of Native American ancestry on BC risk. METHODS AND STUDY POPULATION We used the informativeness for assignment measure to select robust instrumental variables for the individual proportion of Native American ancestry. We then conducted separate Mendelian randomization (MR) analyses based on 1401 Colombian women, most of them from the central Andean regions of Cundinamarca and Huila, and 1366 Mexican women from Mexico City, Monterrey and Veracruz, supplemented by sensitivity and stratified analyses. RESULTS The proportion of Colombian Native American ancestry showed a putatively causal protective effect on BC risk (inverse variance-weighted odds ratio [OR] = 0.974 per 1% increase in ancestry proportion, 95% confidence interval [CI] 0.970-0.978, p = 3.1 × 10-40). The corresponding OR for Mexican Native American ancestry was 0.988 (95% CI 0.987-0.990, p = 1.4 × 10-44). Stratified analyses revealed a stronger association between Native American ancestry and familial BC (Colombian women: OR = 0.958, 95% CI 0.952-0.964; Mexican women: OR = 0.973, 95% CI 0.969-0.978), and stronger protective effects on oestrogen receptor (ER)-positive BC than on ER-negative and triple-negative BC. CONCLUSIONS The present results point to an unconfounded protective effect of Native American ancestry on BC risk in both Colombian and Mexican women which appears to be stronger for familial and ER-positive BC. These findings provide a rationale for personalised prevention programmes that take genetic ancestry into account, as well as for future admixture mapping studies.
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Affiliation(s)
- Linda Zollner
- Statistical Genetics Research Group, Institute of Medical Biometry, Heidelberg University, Heidelberg, Germany
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120, Heidelberg, Germany
- Division of Proteomics of Stem Cells and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Diana Torres
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120, Heidelberg, Germany
- Institute of Human Genetics, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Ignacio Briceno
- Instituto de Genética Humana, Universidad de la Sabana, Bogotá, Colombia
| | - Michael Gilbert
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120, Heidelberg, Germany
| | - Gabriela Torres-Mejía
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Joe Dennis
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Manjeet K Bolla
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Qin Wang
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Ute Hamann
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120, Heidelberg, Germany.
| | - Justo Lorenzo Bermejo
- Statistical Genetics Research Group, Institute of Medical Biometry, Heidelberg University, Heidelberg, Germany
- Department of Biostatistics for Precision Oncology, Institut de Cancérologie Strasbourg Europe, Strasbourg, France
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4
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Šimoliūnas E, Jasmontaitė D, Skinderskis A, Rinkūnaitė I, Alksnė M, Liudvinaitis M, Baltriukienė D. Surface Stiffness Has No Impact on MCF-7 Sensitivity to Doxorubicin. Int J Mol Sci 2023; 24:10192. [PMID: 37373337 DOI: 10.3390/ijms241210192] [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: 05/26/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
Resistance to the chemotherapeutic agents in the clinical management of cancer remains a significant challenge, and the mechanical environment of cancer cells is one of the major determinants of this. Stiffening of the environment is usually associated with increased chemoresistance of cancer cells, although this process depends on the type of cancer. Breast cancer is the most frequently diagnosed cancer, and more than half a million people die from it each year worldwide. In this study, we used the most frequent (70% of diagnosed cases) breast cancer phenotype, representing the MCF-7 cell line, to investigate the influence of surface stiffness on its sensitivity to one of the most commonly used anticancer drugs-doxorubicin. We showed that the mechanical environment affected MCF-7 proliferation, adhesion, and the expression and activation of mitogen-activated protein kinases (MAPKs). Furthermore, the role of MAPKs in response to doxorubicin was dependent on surface stiffness; nevertheless, surface stiffness did not affect MCF-7 resistance to doxorubicin.
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Affiliation(s)
- Egidijus Šimoliūnas
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, 10257 Vilnius, Lithuania
| | - Daiva Jasmontaitė
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, 10257 Vilnius, Lithuania
| | - Algimantas Skinderskis
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, 10257 Vilnius, Lithuania
| | - Ieva Rinkūnaitė
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, 10257 Vilnius, Lithuania
| | - Milda Alksnė
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, 10257 Vilnius, Lithuania
| | - Mantas Liudvinaitis
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, 10257 Vilnius, Lithuania
| | - Daiva Baltriukienė
- Department of Biological Models, Institute of Biochemistry, Life Sciences Center, Vilnius University, 10257 Vilnius, Lithuania
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Galisa SLG, Jacob PL, Farias AAD, Lemes RB, Alves LU, Nóbrega JCL, Zatz M, Santos S, Weller M. Haplotypes of single cancer driver genes and their local ancestry in a highly admixed long-lived population of Northeast Brazil. Genet Mol Biol 2022; 45:e20210172. [PMID: 35112701 PMCID: PMC8811751 DOI: 10.1590/1678-4685-gmb-2021-0172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 11/17/2021] [Indexed: 12/02/2022] Open
Abstract
Admixed populations have not been examined in detail in cancer genetic studies.
Here, we inferred the local ancestry of cancer-associated single nucleotide
polymorphisms (SNPs) and haplotypes of a highly admixed Brazilian population.
SNP array was used to genotype 73 unrelated individuals aged 80-102 years. Local
ancestry inference was performed by merging genotyped regions with phase three
data from the 1000 Genomes Project Consortium using RFmix. The average ancestry
tract length was 9.12-81.71 megabases. Strong linkage disequilibrium was
detected in 48 haplotypes containing 35 SNPs in 10 cancer driver genes. All
together, 19 risk and eight protective alleles were identified in 23 out of 48
haplotypes. Homozygous individuals were mainly of European ancestry, whereas
heterozygotes had at least one Native American and one African ancestry tract.
Native-American ancestry for homozygous individuals with risk alleles for
HNF1B, CDH1, and BRCA1 was inferred for
the first time. Results indicated that analysis of SNP polymorphism in the
present admixed population has a high potential to identify new
ancestry-associated alleles and haplotypes that modify cancer susceptibility
differentially in distinct human populations. Future case-control studies with
populations with a complex history of admixture could help elucidate
ancestry-associated biological differences in cancer incidence and therapeutic
outcomes.
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Affiliation(s)
- Steffany Larissa Galdino Galisa
- Universidade Estadual da Paraíba (UEPB), Núcleo de Estudos em Genética e Educação, Programa de Pós-Graduação em Saúde Pública, Campina Grande, PB, Brazil
| | - Priscila Lima Jacob
- Universidade Estadual da Paraíba (UEPB), Núcleo de Estudos em Genética e Educação, Programa de Pós-Graduação em Saúde Pública, Campina Grande, PB, Brazil
| | - Allysson Allan de Farias
- Universidade Estadual da Paraíba (UEPB), Núcleo de Estudos em Genética e Educação, Programa de Pós-Graduação em Saúde Pública, Campina Grande, PB, Brazil.,Universidade de São Paulo (USP), Departamento de Genética e Biologia Evolutiva, São Paulo, SP, Brazil
| | - Renan Barbosa Lemes
- Universidade de São Paulo (USP), Departamento de Genética e Biologia Evolutiva, São Paulo, SP, Brazil
| | - Leandro Ucela Alves
- Universidade Estadual da Paraíba (UEPB), Núcleo de Estudos em Genética e Educação, Programa de Pós-Graduação em Saúde Pública, Campina Grande, PB, Brazil.,Universidade de São Paulo (USP), Departamento de Genética e Biologia Evolutiva, São Paulo, SP, Brazil
| | - Júlia Cristina Leite Nóbrega
- Universidade Estadual da Paraíba (UEPB), Núcleo de Estudos em Genética e Educação, Programa de Pós-Graduação em Saúde Pública, Campina Grande, PB, Brazil
| | - Mayana Zatz
- Universidade de São Paulo (USP), Departamento de Genética e Biologia Evolutiva, São Paulo, SP, Brazil
| | - Silvana Santos
- Universidade Estadual da Paraíba (UEPB), Núcleo de Estudos em Genética e Educação, Programa de Pós-Graduação em Saúde Pública, Campina Grande, PB, Brazil.,Universidade Estadual da Paraíba (UEPB), Departamento de Biologia, Campina Grande, PB, Brazil
| | - Mathias Weller
- Universidade Estadual da Paraíba (UEPB), Núcleo de Estudos em Genética e Educação, Programa de Pós-Graduação em Saúde Pública, Campina Grande, PB, Brazil.,Universidade Estadual da Paraíba (UEPB), Departamento de Biologia, Campina Grande, PB, Brazil
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6
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Hossain R, Ray P, Sarkar C, Islam MS, Khan RA, Khalipha ABR, Islam MT, Cho WC, Martorell M, Sharifi-Rad J, Butnariu M, Umbetova A, Calina D. Natural Compounds or Their Derivatives against Breast Cancer: A Computational Study. BIOMED RESEARCH INTERNATIONAL 2022; 2022:5886269. [PMID: 35837379 PMCID: PMC9276515 DOI: 10.1155/2022/5886269] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 01/30/2022] [Accepted: 06/21/2022] [Indexed: 12/21/2022]
Abstract
BACKGROUND Breast cancer is one of the most common types of cancer diagnosed and the second leading cause of death among women. Breast cancer susceptibility proteins of type 1 and 2 are human tumor suppressor genes. Genetic variations/mutations in these two genes lead to overexpression of human breast tumor suppressor genes (e.g., BRCA1, BRCA2), which triggers uncontrolled duplication of cells in humans. In addition, multidrug resistance protein 1 (MDR1), an important cell membrane protein that pumps many foreign substances from cells, is also responsible for developing resistance to cancer chemotherapy. Aim of the Study. The aim of this study was to analyze some natural compounds or their derivatives as part of the development of strong inhibitors for breast cancer. Methodology. Molecular docking studies were performed using compounds known in the literature to be effective against BRCA1 and BRCA2 and MDR1, with positive control being 5-fluorouracil, an antineoplastic drug as a positive control. RESULTS The binding affinity of the compounds was analyzed, and it was observed that they had a better binding affinity for the target proteins than the standard drug 5-fluorouracil. Among the compounds analyzed, α-hederin, andrographolide, apigenin, asiatic acid, auricular acid, sinularin, curcumin, citrinin, hispolon, nerol, phytol, retinol palmitate, and sclareol showed the best binding affinity energy to the BRCA1, BRCA2, and MDR1 proteins, respectively. CONCLUSIONS α-Hederin, andrographolide, apigenin, asiatic acid, auricular acid, hispolon, sclareol, curcumin, citrinin, and sinularin or their derivatives can be a good source of anticancer agents in breast cancer.
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Affiliation(s)
- Rajib Hossain
- 1Department of Pharmacy, Life Science Faculty, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - Pranta Ray
- 2Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, China
| | - Chandan Sarkar
- 1Department of Pharmacy, Life Science Faculty, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - Md. Shahazul Islam
- 1Department of Pharmacy, Life Science Faculty, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - Rasel Ahmed Khan
- 3Pharmacy Discipline, Life Science School, Khulna University, Khulna 9280, Bangladesh
| | - Abul Bashar Ripon Khalipha
- 1Department of Pharmacy, Life Science Faculty, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - Muhammad Torequl Islam
- 1Department of Pharmacy, Life Science Faculty, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - William C. Cho
- 4Department of Clinical Oncology, Queen Elizabeth Hospital, 30 Gascoigne Road, Hong Kong 999077, China
| | - Miquel Martorell
- 5Department of Nutrition and Dietetics, Faculty of Pharmacy, and Centre for Healthy Living, University of Concepción, 4070386 Concepción, Chile
| | | | - Monica Butnariu
- 7Banat's University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Romania
| | - Almagul Umbetova
- 8Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan
| | - Daniela Calina
- 9Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
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7
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Ahmed I, Rehman SU, Shahmohamadnejad S, Zia MA, Ahmad M, Saeed MM, Akram Z, Iqbal HMN, Liu Q. Therapeutic Attributes of Endocannabinoid System against Neuro-Inflammatory Autoimmune Disorders. Molecules 2021; 26:3389. [PMID: 34205169 PMCID: PMC8199938 DOI: 10.3390/molecules26113389] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/11/2021] [Accepted: 05/29/2021] [Indexed: 02/05/2023] Open
Abstract
In humans, various sites like cannabinoid receptors (CBR) having a binding affinity with cannabinoids are distributed on the surface of different cell types, where endocannabinoids (ECs) and derivatives of fatty acid can bind. The binding of these substance(s) triggers the activation of specific receptors required for various physiological functions, including pain sensation, memory, and appetite. The ECs and CBR perform multiple functions via the cannabinoid receptor 1 (CB1); cannabinoid receptor 2 (CB2), having a key effect in restraining neurotransmitters and the arrangement of cytokines. The role of cannabinoids in the immune system is illustrated because of their immunosuppressive characteristics. These characteristics include inhibition of leucocyte proliferation, T cells apoptosis, and induction of macrophages along with reduced pro-inflammatory cytokines secretion. The review seeks to discuss the functional relationship between the endocannabinoid system (ECS) and anti-tumor characteristics of cannabinoids in various cancers. The therapeutic potential of cannabinoids for cancer-both in vivo and in vitro clinical trials-has also been highlighted and reported to be effective in mice models in arthritis for the inflammation reduction, neuropathic pain, positive effect in multiple sclerosis and type-1 diabetes mellitus, and found beneficial for treating in various cancers. In human models, such studies are limited; thereby, further research is indispensable in this field to get a conclusive outcome. Therefore, in autoimmune disorders, therapeutic cannabinoids can serve as promising immunosuppressive and anti-fibrotic agents.
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Affiliation(s)
- Ishtiaq Ahmed
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China;
- School of Medical Science, Gold Coast Campus, Griffith University, Southport, QLD 4222, Australia;
| | - Saif Ur Rehman
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China;
| | - Shiva Shahmohamadnejad
- Department of Clinical Biochemistry, School of medicine, Tehran University of Medical Sciences, Tehran 14176-13151, Iran;
| | - Muhammad Anjum Zia
- Enzyme Biotechnology Laboratory, Department of Biochemistry, University of Agriculture, Faisalabad 38040, Pakistan; (M.A.Z.); (M.M.S.)
| | - Muhammad Ahmad
- Faculty of Veterinary Sciences, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences (SBBUVAS), Sakrand 67210, Pakistan;
| | - Muhammad Muzammal Saeed
- Enzyme Biotechnology Laboratory, Department of Biochemistry, University of Agriculture, Faisalabad 38040, Pakistan; (M.A.Z.); (M.M.S.)
| | - Zain Akram
- School of Medical Science, Gold Coast Campus, Griffith University, Southport, QLD 4222, Australia;
| | - Hafiz M. N. Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, 64849 Monterrey, Mexico;
| | - Qingyou Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China;
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8
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Alvarez-Gomez RM, De la Fuente-Hernandez MA, Herrera-Montalvo L, Hidalgo-Miranda A. Challenges of diagnostic genomics in Latin America. Curr Opin Genet Dev 2021; 66:101-109. [PMID: 33517184 DOI: 10.1016/j.gde.2020.12.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/11/2020] [Accepted: 12/16/2020] [Indexed: 12/24/2022]
Abstract
Cancer genome sequencing methods have now become essential for diagnostic purposes, for devising treatment strategies, and for monitoring disease regression and progression. However, access to these benefits has not permeated homogeneously throughout the world; certain regions, such as Latin America, have been slower at adopting these technologies in terms of their routine use, development and patient access. There are also differences among Latin American subregions with respect to their prioritized types of neoplasia and the drugs that are available and approved in them. An overview of the current situation, including the status of genomics for cancer diagnostics and efforts by type of cancer is presented. In addition, we discuss the perspective of initiatives, alliances, and educational/research programs that pledge to make cancer genomics diagnosis a reality for Latin American individuals' health.
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Affiliation(s)
- Rosa Maria Alvarez-Gomez
- National Institute of Genomic Medicine, Periferico Sur 4809, Arenal Tepepan, Tlalpan, 14610, Mexico City, Mexico; National Cancer Institute, San Fernando 22, Seccion XVI, Tlalpan, Mexico City, Mexico
| | - Marcela Angelica De la Fuente-Hernandez
- National Institute of Genomic Medicine, Periferico Sur 4809, Arenal Tepepan, Tlalpan, 14610, Mexico City, Mexico; Doctoral Program in Biological Sciences, National Autonomous University of Mexico, C.U., Coyoacan, 04510, Mexico City, Mexico
| | - Luis Herrera-Montalvo
- National Institute of Genomic Medicine, Periferico Sur 4809, Arenal Tepepan, Tlalpan, 14610, Mexico City, Mexico
| | - Alfredo Hidalgo-Miranda
- National Institute of Genomic Medicine, Periferico Sur 4809, Arenal Tepepan, Tlalpan, 14610, Mexico City, Mexico.
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9
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Garcia Mesa K, Bermejo JL, Torres D, Gilbert M, Plass C, Hamann U. Genetic Variability in the microRNA Binding Sites of BMPR1B, TGFBR1, IQGAP1, KRAS, SETD8 and RYR3 and Risk of Breast Cancer in Colombian Women. Onco Targets Ther 2020; 13:12281-12287. [PMID: 33311986 PMCID: PMC7727273 DOI: 10.2147/ott.s274431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/06/2020] [Indexed: 12/25/2022] Open
Abstract
Background Genetic variants in microRNA (miR) binding sites affect the regulation of miR-dependent gene expression and have been linked to the risk of a variety of cancers including breast cancer (BC). Most BC risk variants had been identified in women of European and Asian ancestry, but genetic data for Hispanic women are scarce. Here, we investigate the association between six variants in miR binding sites and BC risk in Colombian women. Methods We genotyped miR binding site variants in the BMPR1B, TGFBR1, IQGAP1, KRAS, SETD8 and RYR3 genes in 1022 BC cases and 1023 controls from the Colombian breast cancer case–control (Col-BCCC) study using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). Multiple logistic regression and permutation techniques were applied to assess the association between genetic variants and BC risk. Results We found no evidence of association between any of the six miR binding site variants and overall or estrogen receptor subtype-specific BC risk in Colombian women. Conclusion Our findings may point to ethnic differences in the association between genetic variability in miR binding sites and breast cancer risk.
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Affiliation(s)
- Karen Garcia Mesa
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany
| | - Justo Lorenzo Bermejo
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany
| | - Diana Torres
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Institute of Human Genetics, Pontificia Universidad Javeriana, Bogota, Colombia
| | - Michael Gilbert
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Christoph Plass
- Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ute Hamann
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
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10
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Zavala VA, Serrano-Gomez SJ, Dutil J, Fejerman L. Genetic Epidemiology of Breast Cancer in Latin America. Genes (Basel) 2019; 10:E153. [PMID: 30781715 PMCID: PMC6410045 DOI: 10.3390/genes10020153] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 02/13/2019] [Accepted: 02/14/2019] [Indexed: 12/20/2022] Open
Abstract
The last 10 years witnessed an acceleration of our understanding of what genetic factors underpin the risk of breast cancer. Rare high- and moderate-penetrance variants such as those in the BRCA genes account for a small proportion of the familial risk of breast cancer. Low-penetrance alleles are expected to underlie the remaining heritability. By now, there are about 180 genetic polymorphisms that are associated with risk, most of them of modest effect. In combination, they can be used to identify women at the lowest or highest ends of the risk spectrum, which might lead to more efficient cancer prevention strategies. Most of these variants were discovered in populations of European descent. As a result, we might be failing to discover additional polymorphisms that could explain risk in other groups. This review highlights breast cancer genetic epidemiology studies conducted in Latin America, and summarizes the information that they provide, with special attention to similarities and differences with studies in other populations. It includes studies of common variants, as well as moderate- and high-penetrance variants. In addition, it addresses the gaps that need to be bridged in order to better understand breast cancer genetic risk in Latin America.
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Affiliation(s)
- Valentina A Zavala
- Department of Medicine, Division of General Internal Medicine, University of California San Francisco, San Francisco, CA 94143-1793, USA.
| | - Silvia J Serrano-Gomez
- Grupo de investigación en biología del cáncer, Instituto Nacional de Cancerología, Bogotá 11001000, Colombia.
| | - Julie Dutil
- Cancer Biology Division, Ponce Research Institute, Ponce Health Sciences University, Ponce, PR 00732, USA.
| | - Laura Fejerman
- Department of Medicine, Division of General Internal Medicine, University of California San Francisco, San Francisco, CA 94143-1793, USA.
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