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Taghizadeh H, Schmalfuss T, Maj-Hes A, Singer J, Prager GW. Austrian tricentric real-life analysis of molecular profiles of metastatic biliary tract cancer patients. Front Oncol 2023; 13:1143825. [PMID: 37234989 PMCID: PMC10206115 DOI: 10.3389/fonc.2023.1143825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
Introduction Metastatic biliary tract cancer (BTC) is a rare and aggressive entity associated with poor prognosis. It represents a major challenge for adequate treatment strategies. In recent years, BTC has become a model for precision medicine in gastrointestinal oncology. Therefore, the analysis of the individual molecular profile in BTC patients may lead to targeted therapies for the benefit of patients. Methods In this Austrian, tricentric, real-world, retrospective analysis, we investigated patients diagnosed with metastatic BTC who underwent molecular profiling between 2013 and 2022. Results In total, 92 patients were identified in this tricentric analysis and 205 molecular aberrations, including 198 mutations affecting 89 different genes in 61 patients were found. The predominant mutations were in KRAS (n=17; 22.4%), TP53 (n=17; 22.4%), PIK3CA (n=7; 9.2%), FGFR2 (n=7; 9.2%), DNMT3A (n=7; 9.2%), IDH1 (n=7; 9.2%), IDH2 (n=6; 7.9%), CDKN2A (n=6; 7.9%), BAP1 (n=4; 5.3%), NF1 (n=4; 5.3%), and NF2 (n=4; 5.3%). Three patients had HER2 amplification. MSI-H status and FGFR2 fusion genes were each observed in two different patients. One patient had a BRAF V600E mutation. Eventually, 10 patients received targeted therapy, of whom one-half derived clinical benefit. Conclusions Molecular profiling of BTC patients is implementable in routine clinical practice and should be regularly employed to detect and exploit molecular vulnerabilities.
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Affiliation(s)
- Hossein Taghizadeh
- Division of Oncology, Department of Internal Medicine I, University Hospital St. Pölten, St. Pölten, Austria
- Karl Landsteiner University of Health Sciences, Krems, Austria
- Karl Landsteiner Institute for Oncology and Nephrology, St. Pölten, Austria
- Center for Cancer Research, Medical University of Vienna, Vienna, Austria
- Comprehensive Cancer Center Vienna, Medical University of Vienna, Vienna, Austria
| | - Theresa Schmalfuss
- Division of Oncology, Department of Internal Medicine I, University Hospital St. Pölten, St. Pölten, Austria
- Karl Landsteiner University of Health Sciences, Krems, Austria
- Center for Cancer Research, Medical University of Vienna, Vienna, Austria
- Comprehensive Cancer Center Vienna, Medical University of Vienna, Vienna, Austria
| | - Agnieszka Maj-Hes
- Medical University Vienna, Department of Medicine I, Division of Oncology, Vienna, Austria
- Department of Pulmonology, Klinik Penzing, Vienna, Austria
| | - Josef Singer
- Karl Landsteiner University of Health Sciences, Krems, Austria
- Division of Oncology, Department of Internal Medicine II, University Hospital Krems, Krems, Austria
| | - Gerald W. Prager
- Comprehensive Cancer Center Vienna, Medical University of Vienna, Vienna, Austria
- Medical University Vienna, Department of Medicine I, Division of Oncology, Vienna, Austria
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Araújo AB, Furlan JM, Salton GD, Schmalfuss T, Röhsig LM, Silla LMR, Passos EP, Paz AH. Isolation of human mesenchymal stem cells from amnion, chorion, placental decidua and umbilical cord: comparison of four enzymatic protocols. Biotechnol Lett 2018; 40:989-998. [PMID: 29619744 DOI: 10.1007/s10529-018-2546-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 03/27/2018] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To compare four enzymatic protocols for mesenchymal stem cells (MSCs) isolation from amniotic (A-MSC) and chorionic (C-MSC) membranes, umbilical cord (UC-MSC) and placental decidua (D-MSC) in order to define a robust, practical and low-cost protocol for each tissue. RESULTS A-MSCs and UC-MSCs could be isolated from all samples using trypsin/collagenase-based protocols; C-MSCs could be isolated from all samples with collagenase- and trypsin/collagenase-based protocols; D-MSCs were isolated from all samples exclusively with a collagenase-based protocol. CONCLUSIONS The trypsin-only protocol was least efficient; the collagenase-only protocol was best for C-MSCs and D-MSCs; the combination of trypsin and collagenase was best for UC-MSCs and none of tested protocols was adequate for A-MSCs isolation.
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Affiliation(s)
- A B Araújo
- Cryobiology Unit and Umbilical Cord Blood Bank, Hemotherapy Service, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil. .,Federal University of Rio Grande do Sul, Porto Alegre, Brazil. .,Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil.
| | - J M Furlan
- Cryobiology Unit and Umbilical Cord Blood Bank, Hemotherapy Service, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil
| | - G D Salton
- Cryobiology Unit and Umbilical Cord Blood Bank, Hemotherapy Service, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil
| | - T Schmalfuss
- Cryobiology Unit and Umbilical Cord Blood Bank, Hemotherapy Service, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil
| | - L M Röhsig
- Cryobiology Unit and Umbilical Cord Blood Bank, Hemotherapy Service, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil
| | - L M R Silla
- Cellular Technology and Therapy Center, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil
| | - E P Passos
- Federal University of Rio Grande do Sul, Porto Alegre, Brazil.,Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil
| | - A H Paz
- Federal University of Rio Grande do Sul, Porto Alegre, Brazil.,Hospital de Clínicas de Porto Alegre, Ramiro Barcelos, 2350, 90035-903, Porto Alegre, Rio Grande do Sul, Brazil
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