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Laczmanska I, Matkowski R, Supplitt S, Karpinski P, Abrahamowska M, Laczmanski L, Maciejczyk A, Czykalko E, Iwaneczko E, Kasprzak P, Szynglarewicz B, Sasiadek M. Alterations in the expression of homologous recombination repair (HRR) genes in breast cancer tissues considering germline BRCA1/2 mutation status. Breast Cancer Res Treat 2024; 208:501-510. [PMID: 39080120 PMCID: PMC11522089 DOI: 10.1007/s10549-024-07441-4] [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: 05/21/2024] [Accepted: 07/18/2024] [Indexed: 10/30/2024]
Abstract
INTRODUCTION Homologous recombination (HR) is a crucial DNA-repair mechanism, and its disruption can lead to the accumulation of mutations that initiate and promote cancer formation. The key HR genes, BRCA1 and BRCA2, are particularly significant as their germline pathogenic variants are associated with a hereditary predisposition to breast and/or ovarian cancer. MATERIALS AND METHODS The study was performed on 45 FFPE breast cancer tissues obtained from 24 and 21 patients, with and without the germline BRCA1/2 mutation, respectively. The expression of 11 genes: BRCA1, BRCA2, ATM, BARD1, FANCA, FANCB, FANCI, RAD50, RAD51D, BRIP1, and CHEK2 was assessed using Custom RT2 PCR Array (Qiagen), and results were analysed using R. RESULTS Cancer tissues from patients with BRCA1 or BRCA2 germline mutations displayed no significant differences in the expression of the selected HR genes compared to BRCA1 or BRCA2 wild-type cancer tissues. In BRCA1mut cancer tissues, BRCA1 expression was significantly higher than in BRCA2mut and BRCA wild-type cancer tissues. CONCLUSIONS In cancer tissues harbouring either BRCA1 or BRCA2 germline mutations, no significant differences in expression were observed at the mRNA level of any tested HR genes, except BRCA1. However, the significant differences observed in BRCA1 expression between germline BRCA1mut, germline BRCA2mut and BRCA1/2wt tissues may indicate a compensatory mechanism at the mRNA level to mitigate the loss of BRCA1 function in the cells.
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Affiliation(s)
- Izabela Laczmanska
- Department of Genetics, Faculty of Medicine, Wroclaw Medical University, Marcinkowskiego 1, 50-368, Wroclaw, Poland
- Lower Silesian Oncology, Pulmonology and Hematology Center, Hirszfeld Sq. 12, 53-413, Wroclaw, Poland
| | - Rafal Matkowski
- Lower Silesian Oncology, Pulmonology and Hematology Center, Hirszfeld Sq. 12, 53-413, Wroclaw, Poland.
- Department of Oncology, Faculty of Medicine, Wroclaw Medical University, Hirszfeld Sq. 12, 53-413, Wroclaw, Poland.
| | - Stanislaw Supplitt
- Department of Genetics, Faculty of Medicine, Wroclaw Medical University, Marcinkowskiego 1, 50-368, Wroclaw, Poland
| | - Pawel Karpinski
- Department of Genetics, Faculty of Medicine, Wroclaw Medical University, Marcinkowskiego 1, 50-368, Wroclaw, Poland
| | - Mariola Abrahamowska
- Lower Silesian Oncology, Pulmonology and Hematology Center, Hirszfeld Sq. 12, 53-413, Wroclaw, Poland
- Department of Oncology, Faculty of Medicine, Wroclaw Medical University, Hirszfeld Sq. 12, 53-413, Wroclaw, Poland
| | - Lukasz Laczmanski
- Laboratory of Genomics and Bioinformatics, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114, Wroclaw, Poland
| | - Adam Maciejczyk
- Lower Silesian Oncology, Pulmonology and Hematology Center, Hirszfeld Sq. 12, 53-413, Wroclaw, Poland
- Department of Oncology, Faculty of Medicine, Wroclaw Medical University, Hirszfeld Sq. 12, 53-413, Wroclaw, Poland
| | - Ewelina Czykalko
- Lower Silesian Oncology, Pulmonology and Hematology Center, Hirszfeld Sq. 12, 53-413, Wroclaw, Poland
| | - Ewelina Iwaneczko
- Lower Silesian Oncology, Pulmonology and Hematology Center, Hirszfeld Sq. 12, 53-413, Wroclaw, Poland
| | - Piotr Kasprzak
- Lower Silesian Oncology, Pulmonology and Hematology Center, Hirszfeld Sq. 12, 53-413, Wroclaw, Poland
| | - Bartłomiej Szynglarewicz
- Lower Silesian Oncology, Pulmonology and Hematology Center, Hirszfeld Sq. 12, 53-413, Wroclaw, Poland
- Department of Oncology, Faculty of Medicine, Wroclaw Medical University, Hirszfeld Sq. 12, 53-413, Wroclaw, Poland
| | - Maria Sasiadek
- Department of Genetics, Faculty of Medicine, Wroclaw Medical University, Marcinkowskiego 1, 50-368, Wroclaw, Poland
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Pan J, Lan Q, Li S. Identification of RNF150 as the hub gene associated with microsatellite instability in gastric cancer. Sci Rep 2023; 13:12495. [PMID: 37528105 PMCID: PMC10393951 DOI: 10.1038/s41598-023-39255-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 07/22/2023] [Indexed: 08/03/2023] Open
Abstract
Gastric cancer (GC) is a common digestive tract malignancy with the sixth global incidence and third cancer-related deaths, respectively. Microsatellite instability (MSI), accounting for one of the molecular subtypes of GC, plays an important role in GC and is affected by a sophisticated network of gene interactions. In this study, we aimed to explore the expression pattern and clinical performance of MSI related gene in GC patients. Weighted gene co-expression network analysis (WGCNA) was exploited to single out the vital module and core genes in TCGA database. We applied the protein-protein interaction (PPI) and survival analysis to propose and confirm RNF150 as the hub gene in GC. Finally, we utilized immunohistochemistry (IHC) and reverse transcription-polymerase chain reaction (RT-PCR) to explore the expression pattern of RNF150 in GC patients. With the highest weight correlation and standard correlation, RNF150 was selected as the hub gene for following validation. In validation, data obtained from the test sets showed a lower expression of RNF150 in MSI GC compared to microsatellite stability (MSS) GC. Moreover, survival analysis shows that MSI GC patients with a lower RNF150 expression level displayed the longer OS time. Compared to the expression in normal gastric tissues, the protein level of RNF150 was virtually up-regulated in ten cases of GC tissues. Furthermore, RNF150 protein level was decreased in MSI GC samples compared to MSS GC samples. When validated the mRNA expression with RT-PCR in fresh GC tissues, we also found the similar trend. RNF150 was identified as a novel MSI-related gene in GC. It is expected to be an auspicious prognostic biomarker for GC patients.
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Affiliation(s)
- Jun Pan
- Department of Gastroenterology, Taihe Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, China
| | - Qingzhi Lan
- Department of Pathology, Renmin Hospital, Wuhan University, Wuhan, 430060, Hubei, China
| | - Shengbao Li
- Department of Gastroenterology, Taihe Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, China.
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Zhao Z, Mak TK, Shi Y, Huang H, Huo M, Zhang C. The DNA damage repair-related lncRNAs signature predicts the prognosis and immunotherapy response in gastric cancer. Front Immunol 2023; 14:1117255. [PMID: 37457685 PMCID: PMC10339815 DOI: 10.3389/fimmu.2023.1117255] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 06/16/2023] [Indexed: 07/18/2023] Open
Abstract
Background Gastric cancer (GC) is one of the most prevalent cancers, and it has unsatisfactory overall treatment outcomes. DNA damage repair (DDR) is a complicated process for signal transduction that causes cancer. lncRNAs can influence the formation and incidence of cancers by influencing DDR-related mRNAs/miRNAs. A DDR-related lncRNA prognostic model is urgently needed to improve treatment strategies. Methods The data of GC samples were obtained from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) datasets. A total of 588 mRNAs involved in DDR were selected from MSigDB, 62 differentially expressed mRNAs from TCGA-STAD were obtained, and 137 lncRNAs were correlated with these mRNAs. Univariate Cox regression and least absolute shrinkage and selection operator (LASSO) regression analyses were used to develop a DDR-related lncRNA prognostic model. Based on the risk model, the differentially expressed gene signature A/B in the low-risk and high-risk groups of TCGA-STAD was identified for further validation. Results The prognosis model of 5 genes (AC145285.6, MAGI2-AS3, AL590705.3, AC007405.3, and LINC00106) was constructed and classified into two risk groups. We found that GC patients with a low-risk score had a better OS than those with a high-risk score. We found that the high-risk group tended to have higher TME scores. We also found that patients in the high-risk group had a higher proportion of resting CD4 T cells, monocytes, M2 macrophages, resting dendritic cells, and resting mast cells, whereas the low-risk subgroup had a greater abundance of activated CD4 T cells, follicular helper T cells, M0 macrophages, and M1 macrophages. We observed significant differences in the T-cell exclusion score, T-cell dysfunction, MSI, and TMB between the two risk groups. In addition, we found that patients treated with immunotherapy in the low-RS score group had a longer survival and a better prognosis than those in the high-RS score group. Conclusion The prognostic model has a significant role in the TME, clinicopathological characteristics, prognosis, MSI, and drug sensitivity. We also discovered that patients treated with immunotherapy in the low-RS score group had a better prognosis. This work provides a foundation for improving the prognosis and response to immunotherapy among patients with GC.
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Affiliation(s)
- Zidan Zhao
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Tsz Kin Mak
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Yuntao Shi
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Huaping Huang
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Mingyu Huo
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Changhua Zhang
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, China
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Wang M, Xie C. DNA Damage Repair and Current Therapeutic Approaches in Gastric Cancer: A Comprehensive Review. Front Genet 2022; 13:931866. [PMID: 36035159 PMCID: PMC9412963 DOI: 10.3389/fgene.2022.931866] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/15/2022] [Indexed: 11/23/2022] Open
Abstract
DNA in cells is frequently damaged by endogenous and exogenous agents. However, comprehensive mechanisms to combat and repair DNA damage have evolved to ensure genomic stability and integrity. Improper DNA damage repair may result in various diseases, including some types of tumors and autoimmune diseases. Therefore, DNA damage repair mechanisms have been proposed as novel antitumor drug targets. To date, numerous drugs targeting DNA damage mechanisms have been developed. For example, PARP inhibitors that elicit synthetic lethality are widely used in individualized cancer therapies. In this review, we describe the latent DNA damage repair mechanisms in gastric cancer, the types of DNA damage that can contribute to the development of gastric cancer, and new therapeutic approaches for gastric cancer that target DNA damage repair pathways.
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Affiliation(s)
| | - Chuan Xie
- Department of Gastroenterology, the First Affiliated Hospital of Nanchang University, Nanchang, China
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Ivey A, Pratt H, Boone BA. Molecular pathogenesis and emerging targets of gastric adenocarcinoma. J Surg Oncol 2022; 125:1079-1095. [PMID: 35481910 PMCID: PMC9069999 DOI: 10.1002/jso.26874] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/15/2022] [Accepted: 03/19/2022] [Indexed: 12/24/2022]
Abstract
Gastric adenocarcinoma (GC) is a devastating disease and is the third leading cause of cancer deaths worldwide. This heterogeneous disease has several different classification systems that consider histological appearance and genomic alterations. Understanding the etiology of GC, including infection, hereditary conditions, and environmental factors, is of particular importance and is discussed in this review. To improve survival in GC, we also must improve our therapeutic strategies. Here, we discuss new targets that warrant further exploration.
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Affiliation(s)
- Abby Ivey
- Department of Cancer Cell Biology, West Virginia University Cancer Institute, West Virginia University, Morgantown, West Virginia, USA
| | - Hillary Pratt
- Department of Cancer Cell Biology, West Virginia University Cancer Institute, West Virginia University, Morgantown, West Virginia, USA
| | - Brian A Boone
- Department of Cancer Cell Biology, West Virginia University Cancer Institute, West Virginia University, Morgantown, West Virginia, USA
- Department of Surgery, Department of Microbiology, Immunology and Cell Biology, West Virginia University, Morgantown, West Virginia, USA
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Zimmer K, Kocher F, Puccini A, Seeber A. Targeting BRCA and DNA Damage Repair Genes in GI Cancers: Pathophysiology and Clinical Perspectives. Front Oncol 2021; 11:662055. [PMID: 34707985 PMCID: PMC8542868 DOI: 10.3389/fonc.2021.662055] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 09/15/2021] [Indexed: 12/11/2022] Open
Abstract
Mutated germline alleles in the DNA damage repair (DDR) genes “breast cancer gene 1” (BRCA1) and BRCA2 have originally been identified as major susceptibility genes in breast and ovarian cancers. With the establishment and approval of more cost-effective gene sequencing methods, germline and somatic BRCA mutations have been detected in several cancers. Since the approval of poly (ADP)-ribose polymerase inhibitors (PARPi) for BRCA-mutated cancers, BRCA mutations gained rising therapeutic implications. The impact and significance of BRCA mutations have been evaluated extensively in the last decades. Moreover, other genes involved in the DDR pathway, such as ATM, ATR, or CHK1, have emerged as potential new treatment targets, as inhibitors of these proteins are currently under clinical investigation. This review gives a concise overview on the emerging clinical implications of mutations in the DDR genes in gastrointestinal cancers with a focus on BRCA mutations.
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Affiliation(s)
- Kai Zimmer
- Department of Hematology and Oncology, Comprehensive Cancer Center Innsbruck, Medical University of Innsbruck, Innsbruck, Austria
| | - Florian Kocher
- Department of Hematology and Oncology, Comprehensive Cancer Center Innsbruck, Medical University of Innsbruck, Innsbruck, Austria
| | - Alberto Puccini
- Medical Oncology Unit 1, Ospedale Policlinico San Martino Istituto di ricovero e cura a carattere scientifico (IRCCS), University of Genoa, Genoa, Italy
| | - Andreas Seeber
- Department of Hematology and Oncology, Comprehensive Cancer Center Innsbruck, Medical University of Innsbruck, Innsbruck, Austria
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Molecular Bases of Mechanisms Accounting for Drug Resistance in Gastric Adenocarcinoma. Cancers (Basel) 2020; 12:cancers12082116. [PMID: 32751679 PMCID: PMC7463778 DOI: 10.3390/cancers12082116] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 12/24/2022] Open
Abstract
Gastric adenocarcinoma (GAC) is the most common histological type of gastric cancer, the fifth according to the frequency and the third among the deadliest cancers. GAC high mortality is due to a combination of factors, such as silent evolution, late clinical presentation, underlying genetic heterogeneity, and effective mechanisms of chemoresistance (MOCs) that make the available antitumor drugs scarcely useful. MOCs include reduced drug uptake (MOC-1a), enhanced drug efflux (MOC-1b), low proportion of active agents in tumor cells due to impaired pro-drug activation or active drug inactivation (MOC-2), changes in molecular targets sensitive to anticancer drugs (MOC-3), enhanced ability of cancer cells to repair drug-induced DNA damage (MOC-4), decreased function of pro-apoptotic factors versus up-regulation of anti-apoptotic genes (MOC-5), changes in tumor cell microenvironment altering the response to anticancer agents (MOC-6), and phenotypic transformations, including epithelial-mesenchymal transition (EMT) and the appearance of stemness characteristics (MOC-7). This review summarizes updated information regarding the molecular bases accounting for these mechanisms and their impact on the lack of clinical response to the pharmacological treatment currently used in GAC. This knowledge is required to identify novel biomarkers to predict treatment failure and druggable targets, and to develop sensitizing strategies to overcome drug refractoriness in GAC.
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Sevic I, Spinelli FM, Vitale DL, Icardi A, Romano L, Brandone A, Giannoni P, Cristina C, Bolontrade MF, Alaniz L. Hyaluronan Metabolism is Associated with DNA Repair Genes in Breast and Colorectal Cancer. Screening of Potential Progression Markers Using qPCR. Biomedicines 2020; 8:E183. [PMID: 32610620 PMCID: PMC7400093 DOI: 10.3390/biomedicines8070183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/01/2020] [Accepted: 06/03/2020] [Indexed: 12/21/2022] Open
Abstract
In this work, we compared mRNA levels of Hyaluronan (HA) metabolism members and BRCA genes, known to be involved in the tumoral process, between tumor and non-tumor adjacent tissue and its correlation with previously proposed biomarkers (ER, PR, HER2 and KI67) in order to assess their value as a progression biomarkers. We show alteration in HA metabolism in colorectal but not breast cancer. However, we found a decrease in Hyaluronidase 1 HYAL1 levels in the breast but not colorectal cancer. We also show lower HA levels in tumor compared with normal tissue that could indicate a possible influence of tumor on its surrounding "normal" tissue. In both breast and colorectal cancer, CD44 and BRCA2 showed a strong positive correlation. Besides, our results show first indicators that qPCR of the analyzed genes could be used as an easy and low cost procedure for the evaluation of molecular markers we propose here.
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Affiliation(s)
- Ina Sevic
- Laboratorio de Microambiente Tumoral; Centro de Investigaciones Básicas y Aplicadas (CIBA), CIT NOBA, Universidad Nacional del Noroeste de la Pcia. de Bs. As. Consejo Nacional de Investigaciones Científicas y Técnicas (UNNOBA-CONICET), Junín B6000, Argentina; (I.S.); (F.M.S.); (D.L.V.); (A.I.)
| | - Fiorella Mercedes Spinelli
- Laboratorio de Microambiente Tumoral; Centro de Investigaciones Básicas y Aplicadas (CIBA), CIT NOBA, Universidad Nacional del Noroeste de la Pcia. de Bs. As. Consejo Nacional de Investigaciones Científicas y Técnicas (UNNOBA-CONICET), Junín B6000, Argentina; (I.S.); (F.M.S.); (D.L.V.); (A.I.)
| | - Daiana Lujan Vitale
- Laboratorio de Microambiente Tumoral; Centro de Investigaciones Básicas y Aplicadas (CIBA), CIT NOBA, Universidad Nacional del Noroeste de la Pcia. de Bs. As. Consejo Nacional de Investigaciones Científicas y Técnicas (UNNOBA-CONICET), Junín B6000, Argentina; (I.S.); (F.M.S.); (D.L.V.); (A.I.)
| | - Antonella Icardi
- Laboratorio de Microambiente Tumoral; Centro de Investigaciones Básicas y Aplicadas (CIBA), CIT NOBA, Universidad Nacional del Noroeste de la Pcia. de Bs. As. Consejo Nacional de Investigaciones Científicas y Técnicas (UNNOBA-CONICET), Junín B6000, Argentina; (I.S.); (F.M.S.); (D.L.V.); (A.I.)
| | - Lucia Romano
- Laboratorio de Fisiopatología de la Hipófisis; Centro de Investigaciones Básicas y Aplicadas (CIBA), CIT NOBA, Universidad Nacional del Noroeste de la Pcia. de Bs. As. Consejo Nacional de Investigaciones Científicas y Técnicas (UNNOBA-CONICET), Junín B6000, Argentina; (L.R.); (C.C.)
| | - Alejandra Brandone
- Hospital Interzonal General de Agudos Dr. Abraham F. Piñeyro, Junín B6000, Argentina;
| | | | - Carolina Cristina
- Laboratorio de Fisiopatología de la Hipófisis; Centro de Investigaciones Básicas y Aplicadas (CIBA), CIT NOBA, Universidad Nacional del Noroeste de la Pcia. de Bs. As. Consejo Nacional de Investigaciones Científicas y Técnicas (UNNOBA-CONICET), Junín B6000, Argentina; (L.R.); (C.C.)
| | - Marcela Fabiana Bolontrade
- Instituto de Medicina Traslacional e Ingeniería Biomédica (IMTIB)-CONICET-Instituto Universitario del Hospital Italiano-Hospital Italiano Buenos Aires (HIBA), Buenos Aires C1199ACL, Argentina;
| | - Laura Alaniz
- Laboratorio de Microambiente Tumoral; Centro de Investigaciones Básicas y Aplicadas (CIBA), CIT NOBA, Universidad Nacional del Noroeste de la Pcia. de Bs. As. Consejo Nacional de Investigaciones Científicas y Técnicas (UNNOBA-CONICET), Junín B6000, Argentina; (I.S.); (F.M.S.); (D.L.V.); (A.I.)
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