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Choochuen P, Nokchan N, Khongcharoen N, Laochareonsuk W, Surachat K, Chotsampancharoen T, Sila T, Consortium SS. Discovery of Novel Potential Prognostic Markers and Targeted Therapy to Overcome Chemotherapy Resistance in an Advanced-Stage Wilms Tumor. Cancers (Basel) 2024; 16:1567. [PMID: 38672648 PMCID: PMC11049388 DOI: 10.3390/cancers16081567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 04/17/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Wilms tumor (WT), the most prevalent type of renal cancer in children, exhibits overall survival rates exceeding 90%. However, chemotherapy resistance, which occurs in approximately 10% of WT cases, is a major challenge for the treatment of WT, particularly for advanced-stage patients. In this study, we aimed to discover potential mutation markers and drug targets associated with chemotherapy resistance in advanced-stage WT. We performed exome sequencing to detect somatic mutations and molecular targets in 43 WT samples, comprising 26 advanced-stage WTs, of which 7 cases were chemotherapy-resistant. Our analysis revealed four genes (ALPK2, C16orf96, PRKDC, and SVIL) that correlated with chemotherapy resistance and reduced disease-free survival in advanced-stage WT. Additionally, we identified driver mutations in 55 genes within the chemotherapy-resistant group, including 14 druggable cancer driver genes. Based on the mutation profiles of the resistant WT samples, we propose potential therapeutic strategies involving platinum-based agents, PARP inhibitors, and antibiotic/antineoplastic agents. Our findings provide insights into the genetic landscape of WT and offer potential avenues for targeted treatment, particularly for patients with chemotherapy resistance.
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Affiliation(s)
- Pongsakorn Choochuen
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand; (P.C.); (N.N.); (N.K.); (W.L.); (K.S.)
- Translational Medicine Research Center, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand
| | - Natakorn Nokchan
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand; (P.C.); (N.N.); (N.K.); (W.L.); (K.S.)
- Translational Medicine Research Center, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand
| | - Natthapon Khongcharoen
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand; (P.C.); (N.N.); (N.K.); (W.L.); (K.S.)
- Translational Medicine Research Center, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand
| | - Wison Laochareonsuk
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand; (P.C.); (N.N.); (N.K.); (W.L.); (K.S.)
- Translational Medicine Research Center, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand
| | - Komwit Surachat
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand; (P.C.); (N.N.); (N.K.); (W.L.); (K.S.)
- Translational Medicine Research Center, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand
| | | | - Thanit Sila
- Department of Pathology, Facualty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand;
| | - Surasak Sangkhathat Consortium
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand; (P.C.); (N.N.); (N.K.); (W.L.); (K.S.)
- Department of Surgery, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand
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Temesszentandrási-Ambrus C, Nagy G, Bui A, Gáborik Z. A Unique In Vitro Assay to Investigate ABCB4 Transport Function. Int J Mol Sci 2023; 24:ijms24054459. [PMID: 36901890 PMCID: PMC10003010 DOI: 10.3390/ijms24054459] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 03/12/2023] Open
Abstract
ABCB4 is almost exclusively expressed in the liver, where it plays an essential role in bile formation by transporting phospholipids into the bile. ABCB4 polymorphisms and deficiencies in humans are associated with a wide spectrum of hepatobiliary disorders, attesting to its crucial physiological function. Inhibition of ABCB4 by drugs may lead to cholestasis and drug-induced liver injury (DILI), although compared with other drug transporters, there are only a few identified substrates and inhibitors of ABCB4. Since ABCB4 shares up to 76% identity and 86% similarity in the amino acid sequence with ABCB1, also known to have common drug substrates and inhibitors, we aimed to develop an ABCB4 expressing Abcb1-knockout MDCKII cell line for transcellular transport assays. This in vitro system allows the screening of ABCB4-specific drug substrates and inhibitors independently of ABCB1 activity. Abcb1KO-MDCKII-ABCB4 cells constitute a reproducible, conclusive, and easy to use assay to study drug interactions with digoxin as a substrate. Screening a set of drugs with different DILI outcomes proved that this assay is applicable to test ABCB4 inhibitory potency. Our results are consistent with prior findings concerning hepatotoxicity causality and provide new insights for identifying drugs as potential ABCB4 inhibitors and substrates.
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Affiliation(s)
- Csilla Temesszentandrási-Ambrus
- SOLVO Biotechnology, Charles River Laboratories Hungary, H-1117 Budapest, Hungary
- Doctoral School of Molecular Medicine, Semmelweis University, Tűzoltó u. 37-47, H-1094 Budapest, Hungary
| | - Gábor Nagy
- SOLVO Biotechnology, Charles River Laboratories Hungary, H-1117 Budapest, Hungary
| | - Annamária Bui
- SOLVO Biotechnology, Charles River Laboratories Hungary, H-1117 Budapest, Hungary
| | - Zsuzsanna Gáborik
- SOLVO Biotechnology, Charles River Laboratories Hungary, H-1117 Budapest, Hungary
- Correspondence: ; Tel.: +36-303879216
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Role of Drug Transporters in Elucidating Inter-Individual Variability in Pediatric Chemotherapy-Related Toxicities and Response. Pharmaceuticals (Basel) 2022; 15:ph15080990. [PMID: 36015138 PMCID: PMC9415926 DOI: 10.3390/ph15080990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/01/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022] Open
Abstract
Pediatric cancer treatment has evolved significantly in recent decades. The implementation of risk stratification strategies and the selection of evidence-based chemotherapy combinations have improved survival outcomes. However, there is large interindividual variability in terms of chemotherapy-related toxicities and, sometimes, the response among this population. This variability is partly attributed to the functional variability of drug-metabolizing enzymes (DME) and drug transporters (DTS) involved in the process of absorption, distribution, metabolism and excretion (ADME). The DTS, being ubiquitous, affects drug disposition across membranes and has relevance in determining chemotherapy response in pediatric cancer patients. Among the factors affecting DTS function, ontogeny or maturation is important in the pediatric population. In this narrative review, we describe the role of drug uptake/efflux transporters in defining pediatric chemotherapy-treatment-related toxicities and responses. Developmental differences in DTS and the consequent implications are also briefly discussed for the most commonly used chemotherapeutic drugs in the pediatric population.
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Castillo-Ecija H, Monterrubio C, Pascual-Pasto G, Gomez-Gonzalez S, Garcia-Dominguez DJ, Hontecillas-Prieto L, Resa-Pares C, Burgueño V, Paco S, Olaciregui NG, Vila-Ubach M, Restrepo-Perdomo C, Cuadrado-Vilanova M, Balaguer-Lluna L, Perez-Jaume S, Castañeda A, Santa-Maria V, Roldan M, Suñol M, de Alava E, Mora J, Lavarino C, Carcaboso AM. Treatment-driven selection of chemoresistant Ewing sarcoma tumors with limited drug distribution. J Control Release 2020; 324:440-449. [PMID: 32497782 DOI: 10.1016/j.jconrel.2020.05.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 04/21/2020] [Accepted: 05/20/2020] [Indexed: 12/18/2022]
Abstract
Ewing sarcoma is a bone and soft tissue tumor predominantly affecting adolescents and young adults. To characterize changes in anticancer drug activity and intratumor drug distribution during the evolution of Ewing sarcomas, we used immunodeficient mice to establish pairs of patient-derived xenografts (PDX) at early (initial diagnosis) and late (relapse or refractory progression) stages of the disease from three patients. Analysis of copy number alterations (CNA) in early passage PDX tissues showed that two tumor pairs established from patients which responded initially to therapy and relapsed more than one year later displayed similar CNAs at early and late stages. For these two patients, PDX established from late tumors were more resistant to chemotherapy (irinotecan) than early counterparts. In contrast, the tumor pair established at refractory progression showed highly dissimilar CNA profiles, and the pattern of response to chemotherapy was discordant with those of relapsed cases. In mice receiving irinotecan infusions, the level of SN-38 (active metabolite of irinotecan) in the intracellular tumor compartment was reduced in tumors at later stages compared to earlier tumors for those pairs bearing similar CNAs, suggesting that distribution of anticancer drug shifted toward the extracellular compartment during clonal tumor evolution. Overexpression of the drug transporter P-glycoprotein in late tumor was likely responsible for this shift in drug distribution in one of the cases.
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Affiliation(s)
- Helena Castillo-Ecija
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Carles Monterrubio
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Guillem Pascual-Pasto
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Soledad Gomez-Gonzalez
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Daniel J Garcia-Dominguez
- Institute of Biomedicine of Sevilla (IBiS), Virgen del Rocio University Hospital/CSIC/University of Sevilla/CIBERONC, Seville 41013, Spain
| | - Lourdes Hontecillas-Prieto
- Institute of Biomedicine of Sevilla (IBiS), Virgen del Rocio University Hospital/CSIC/University of Sevilla/CIBERONC, Seville 41013, Spain
| | - Claudia Resa-Pares
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Victor Burgueño
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Sonia Paco
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Nagore G Olaciregui
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Monica Vila-Ubach
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Camilo Restrepo-Perdomo
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pathology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Maria Cuadrado-Vilanova
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Leire Balaguer-Lluna
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Sara Perez-Jaume
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Alicia Castañeda
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Vicente Santa-Maria
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Monica Roldan
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pathology, Hospital Sant Joan de Deu, Barcelona 08950, Spain; Confocal Microscopy Unit, Institut Pediàtric de Malalties Rares (IPER), Hospital Sant Joan de Déu, Barcelona 08950, Spain
| | - Mariona Suñol
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pathology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Enrique de Alava
- Institute of Biomedicine of Sevilla (IBiS), Virgen del Rocio University Hospital/CSIC/University of Sevilla/CIBERONC, Seville 41013, Spain; Department of Normal and Pathological Cytology and Histology, School of Medicine, University of Seville, Seville 41009, Spain
| | - Jaume Mora
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Cinzia Lavarino
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain
| | - Angel M Carcaboso
- Institut de Recerca Sant Joan de Deu, Barcelona 08950, Spain; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona 08950, Spain.
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Che G, Gao H, Tian J, Hu Q, Xie H, Zhang Y. MicroRNA-483-3p Promotes Proliferation, Migration, and Invasion and Induces Chemoresistance of Wilms' Tumor Cells. Pediatr Dev Pathol 2020; 23:144-151. [PMID: 31498707 DOI: 10.1177/1093526619873491] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Wilms' tumor is the most common pediatric renal malignancy. MiRNAs are important regulators in multiple cancers including Wilms' tumor. In this study, we examined the role of miR-483-3p on proliferation, chemosensitivity, migration, and invasion of Wilms' tumor cells. The proliferation of Wilms' tumor cells was examined using WST-1 assay. The migration and invasion of Wilms' tumor cells were evaluated by transwell migration assay and matrigel invasion assay. The protein expression levels were detected by Western blot. The effect of miR-483-3p on doxorubicin-induced apoptosis in Wilms' tumor cells was evaluated by caspase-Glo3/7 assay. Forced expression of miR-483-3p promoted the proliferation, migration, and invasion in Wilms' tumor cells. Meanwhile, miR-483-3p decreased the sensitivity of Wilms' tumor cells after doxorubicin treatment. MiR-483-3p inhibited the doxorubicin-induced apoptosis in Wilms' tumor cells by the regulation of BAX and Bcl-2 expression. Furthermore, miR-483-3p regulated epithelial-mesenchymal transition by affecting the expression of E-cadherin, N-cadherin, snail, and vimentin in Wilms' tumor cells. Further studies showed that the expression levels of PTEN and p-AKT in Wilms' tumor cells were changed after aberrant expression of miR-483-3p by binding to 3'-UTR of PTEN. Our study suggests that miR-483-3p played important roles in proliferation and progression in Wilms' tumor cells and might serve as a potential prognostic biomarker and predict chemotherapy response in Wilms' tumor.
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Affiliation(s)
- Guanghua Che
- Department of Pediatrics, Second Hospital, Jilin University, Changchun, China
| | - Hang Gao
- The Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, China
| | - Jing Tian
- Department of Pediatrics, Second Hospital, Jilin University, Changchun, China
| | - Qibo Hu
- Department of Pediatrics, Second Hospital, Jilin University, Changchun, China
| | - Hongchang Xie
- Department of Pediatrics, Second Hospital, Jilin University, Changchun, China
| | - Yunfeng Zhang
- Department of Pediatrics, Second Hospital, Jilin University, Changchun, China
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Wen C, Fu L, Huang J, Dai Y, Wang B, Xu G, Wu L, Zhou H. Curcumin reverses doxorubicin resistance via inhibition the efflux function of ABCB4 in doxorubicin‑resistant breast cancer cells. Mol Med Rep 2019; 19:5162-5168. [PMID: 31059026 PMCID: PMC6522915 DOI: 10.3892/mmr.2019.10180] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 03/15/2019] [Indexed: 12/11/2022] Open
Abstract
Doxorubicin is one of the most widely used chemotherapy agents for the treatment of breast cancer. However, the development of doxorubicin resistance limits the long-term treatment benefits in patients with breast cancer. Curcumin, a well-known dietary polyphenol derived from the rhizomes of turmeric (Curcuma longa), enhances the sensitivity of breast cancer cells to chemotherapeutic agents; however, the mechanisms underlying this phenomenon remain unclear. The aim of the present study was to evaluate the effect of curcumin on chemoresistance in doxorubicin-resistant breast cancerMCF-7/DOX and MDA-MB-231/DOX cell lines. Cell Counting Kit-8, monolayer transport, western blot and ATPase activity assays were performed during the study. The results revealed that curcumin significantly enhanced the effect of doxorubicin in doxorubicin-resistant breast cancer cells. The intracellular accumulation of doxorubicin was substantially increased following curcumin treatment in doxorubicin-resistant breast cancer cells, in a manner that was inversely dependent on the activity of ATP binding cassette subfamily B member 4 (ABCB4). Treatment with a combination of curcumin and doxorubicin decreases the efflux of doxorubicin in ABCB4-overexpressing cells. Furthermore, curcumin inhibited the ATPase activity of ABCB4 without altering its protein expression. In conclusion, curcumin reversed doxorubicin resistance in human breast cancer MCF-7/DOX and MDA-MB-231/DOX cells by inhibiting the ATPase activity of ABCB4. The study highlights the promising use of curcumin as a chemosensitizer in the treatment of breast cancer.
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Affiliation(s)
- Chunjie Wen
- Institute of Life Sciences, Chongqing Medical University, Yuzhong, Chongqing 400016, P.R. China
| | - Lijuan Fu
- Institute of Traditional Chinese Medicine, Chongqing Medical University, Yuzhong, Chongqing 400016, P.R. China
| | - Jiafeng Huang
- Institute of Life Sciences, Chongqing Medical University, Yuzhong, Chongqing 400016, P.R. China
| | - Yi Dai
- Institute of Life Sciences, Chongqing Medical University, Yuzhong, Chongqing 400016, P.R. China
| | - Bin Wang
- Institute of Life Sciences, Chongqing Medical University, Yuzhong, Chongqing 400016, P.R. China
| | - Ge Xu
- Institute of Life Sciences, Chongqing Medical University, Yuzhong, Chongqing 400016, P.R. China
| | - Lanxiang Wu
- Institute of Life Sciences, Chongqing Medical University, Yuzhong, Chongqing 400016, P.R. China
| | - Honghao Zhou
- Institute of Life Sciences, Chongqing Medical University, Yuzhong, Chongqing 400016, P.R. China
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Zapata-Tarres M, Juarez-Villegas LE, Maldonado-Valenzuela A, Baay-Guzman GJ, Lopez-Perez TV, Cabrera-Muñoz L, Sadowinski-Pine S, Huerta-Yepez S. Expression of YY1 in Wilms tumors with favorable histology is a risk factor for adverse outcomes. Future Oncol 2019; 15:1231-1241. [DOI: 10.2217/fon-2018-0764] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Aim: To investigate the role of the transcription factor YY1 in Wilms tumor (WT). Patients & methods: We measured YY1 expression using tissue microarray from patients with pediatric renal tumors, mainly WT and evaluated correlations with the predicted clinical evolution. YY1 expression was measured using immunohistochemical and protein expression was determined by digital pathology. Results & conclusion: YY1 significantly increased in WT patients. In addition, an increase in YY1 expression had a greater risk of adverse outcomes in WT patients with favorable histology. YY1 expression was higher in the blastemal component of tumors, and high nuclear expression positively correlated with metastasis. YY1 may be considered as a metastasis risk factor in WT.
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Affiliation(s)
| | - Luis E Juarez-Villegas
- Departamento de Hemato-Oncología, Hospital Infantil de México, Federico Gómez, Mexico City, Mexico
| | | | - Guillermina J Baay-Guzman
- Unidad de Investigación en Enfermedades Oncológicas, Hospital Infantil de México, Federico Gómez, Mexico City, Mexico
| | - Tania V Lopez-Perez
- Unidad de Investigación en Enfermedades Oncológicas, Hospital Infantil de México, Federico Gómez, Mexico City, Mexico
| | - Lourdes Cabrera-Muñoz
- Departamento de Patología, Hospital Infantil de México, Federico Gómez, Mexico City, Mexico
| | | | - Sara Huerta-Yepez
- Unidad de Investigación en Enfermedades Oncológicas, Hospital Infantil de México, Federico Gómez, Mexico City, Mexico
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Huang JF, Wen CJ, Zhao GZ, Dai Y, Li Y, Wu LX, Zhou HH. Overexpression of ABCB4 contributes to acquired doxorubicin resistance in breast cancer cells in vitro. Cancer Chemother Pharmacol 2018; 82:199-210. [DOI: 10.1007/s00280-018-3603-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 05/14/2018] [Indexed: 12/01/2022]
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Hontecillas-Prieto L, García-Domínguez DJ, García-Mejías R, Ramírez-Villar GL, Sáez C, de Álava E. HMGA2 overexpression predicts relapse susceptibility of blastemal Wilms tumor patients. Oncotarget 2017; 8:115290-115303. [PMID: 29383160 PMCID: PMC5777772 DOI: 10.18632/oncotarget.23256] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/04/2017] [Indexed: 12/21/2022] Open
Abstract
Wilms tumor (WT) is an embryonal malignant neoplasm of the kidney that accounts for 6-7% of all childhood cancers. WT seems to derive from multipotent embryonic renal stem cells that have failed to differentiate properly. Since mechanisms underlying WT tumorigenesis remain largely unknown, the aim of this study was to explore the expression of embryonic stem cell (ESC) markers in samples of WT patients after chemotherapy treatment SIOP protocol, as the gene expression patterns of ESC are like those of most cancer cells. We found that expression of ESC markers is heterogeneous, and depends on histological WT components. Interestingly, among ESC markers, HMGA2 was expressed significantly stronger in the blastemal component than in the stromal and the normal kidney. Moreover, two subsets of patients of WT blastemal type were identified, depending on the expression levels of HMGA2. High HMGA2 expression levels were significantly associated with a higher proliferation rate (p=0.0345) and worse patient prognosis (p=0.0289). The expression of HMGA2 was a stage-independent factor of clinical outcome in blastemal WT patients. Our multivariate analyses demonstrated the association between LIN28B-LET7A-HMGA2 expression, and the positive correlation between HMGA2 and SLUG expression (p=0.0358) in blastemal WT components. In addition, patients with a poor prognosis and high HMGA2 expression presented high levels of MDR3 (multidrug resistance transporter). Our findings suggest that HMGA2 plays a prominent role in the pathogenesis of a subset of blastemal WT, strongly associated with relapse and resistance to chemotherapy.
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Affiliation(s)
- Lourdes Hontecillas-Prieto
- Institute of Biomedicine of Seville (IBiS), Pathology Unit, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, CIBERONC, Seville, Spain
| | - Daniel J García-Domínguez
- Institute of Biomedicine of Seville (IBiS), Pathology Unit, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, CIBERONC, Seville, Spain
| | - Rosa García-Mejías
- Institute of Biomedicine of Seville (IBiS), Pathology Unit, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, CIBERONC, Seville, Spain
| | - Gema L Ramírez-Villar
- Pediatric Oncology Unit, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Carmen Sáez
- Institute of Biomedicine of Seville (IBiS), Pathology Unit, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, CIBERONC, Seville, Spain
| | - Enrique de Álava
- Institute of Biomedicine of Seville (IBiS), Pathology Unit, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, CIBERONC, Seville, Spain
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