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Surmeli ZG, Ibrahim RHM, Alkhalfan N, Mahmood Z. Cisplatin-induced bone marrow failure in an adult patient with Fanconi anemia. J Oncol Pharm Pract 2024:10781552241268468. [PMID: 39095039 DOI: 10.1177/10781552241268468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
INTRODUCTION Fanconi anemia (FA) is a genetic disorder characterized by bone marrow failure typically developing in the first decade of life, congenital abnormalities, and an increased predisposition to malignancy. However, patients with FA can remain undiagnosed until adulthood and present with solid organ malignancies. Due to impaired DNA repair mechanisms, patients with FA are highly susceptible to severe bone marrow toxicity when treated with cisplatin. CASE REPORT A 38-year-old woman, diagnosed with locally advanced squamous cell carcinoma (SCC) of the uterine cervix, underwent treatment with weekly cisplatin concurrent with radiotherapy. After the second week of cisplatin treatment, she presented with severe pancytopenia. The prolonged and severe pancytopenia following cisplatin and radiation, along with cervical SCC in the absence of risk factors and the presence of parental consanguinity, raised the possibility of FA as the underlying cause. Whole exome sequencing revealed a homozygous FANCI c.668A > C (p.Lys223Thr) missense variant confirming the diagnosis of FA. MANAGEMENT AND OUTCOME The pancytopenia exhibited a protracted course, necessitating admission and supportive treatment with antibiotics, red blood cell and platelet transfusions, as well as filgrastim and eltrombopag. Eventually, the pancytopenia improved after approximately 40 days of hospitalization. DISCUSSION SCC of the head and neck or gynecologic organs in a young adult without known risk factors should prompt consideration of FA. Cisplatin should be avoided in patients with FA.
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Affiliation(s)
| | | | - Nawaf Alkhalfan
- Department of Medical Oncology, Bahrain Oncology Center, Muharraq, Bahrain
| | - Zeyad Mahmood
- Department of Medical Oncology, Bahrain Oncology Center, Muharraq, Bahrain
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2
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Zhang C, You X, Zhang Q, Wang D. Molecular profiling and prognostic analysis in Chinese cholangiocarcinoma: an observational, retrospective single-center study. Invest New Drugs 2024; 42:24-34. [PMID: 37975978 DOI: 10.1007/s10637-023-01394-z] [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: 05/19/2023] [Accepted: 09/13/2023] [Indexed: 11/19/2023]
Abstract
Cholangiocarcinoma (CCA) is a primary malignancy which is often diagnosed when it is advanced and inoperable due to the lack of effective biomarkers and poor sensitivity of clinical diagnosis. Molecular profiling may provide information for improved clinical management, particularly targeted therapy. The study aimed to improve the understanding of molecular characteristics and its association with prognosis in Chinese CCA. We enrolled 41 Chinese patients with CCA, including 6 intrahepatic CCA (iCCA), 14 perihilar CCA (pCCA), and 21 distal CCA (dCCA) cases, all patients underwent radical operations and tumor samples underwent next-generation sequencing (NGS) by Foundation One Dx, which analyzed 324 genes. The patients' genetic characteristics, clinical management, and prognosis were analyzed. The most mutated genes were TP53 (68%, 28/41), CDKN2A (37%, 15/41), and SMAD4 (29%, 12/41). The genetic mutations in dCCA, pCCA, and iCCA were significantly different. For example, NOTCH3 mutations were not found in dCCA. The gene mutations of AXL were specifically associated with lymph node metastasis in patients with CCA, whereas gene mutations of SMAD4 were specifically associated with lymphovascular invasion. Furthermore, mutations in APC, DAXX, FANCA, LTK, MAP2K4, and NOTCH1 were associated with a poor prognosis (P < 0.05). This study provides an overview of genetic alterations in Chinese patients with CCA, which will provide novel potential biomarkers for the diagnosis of CCA and may guide targeted therapeutic strategies for Chinese patients with CCA.
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Affiliation(s)
- Changkun Zhang
- Department of Hepatobiliary Surgery, Peking University People's Hospital, Beijing, 100044, China
| | - Xia You
- The Medical Department, The State Key Lab of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, China
| | - Qin Zhang
- The Medical Department, The State Key Lab of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, China
| | - Dong Wang
- Department of Hepatobiliary Surgery, Peking University People's Hospital, Beijing, 100044, China.
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3
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Haggstrom LR, Tucker K, Williams R, Nelson A, Walsh R, Brungs D, Aghmesheh M. Exceptional Response to Olaparib: A Case Report of Metastatic Esophageal Squamous Cell Carcinoma in a Patient With Fanconi Anemia, Germline FANCA Mutation, and Somatic BRCA2 Mutations. JCO Precis Oncol 2023; 7:e2300221. [PMID: 37725782 DOI: 10.1200/po.23.00221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 06/18/2023] [Accepted: 07/19/2023] [Indexed: 09/21/2023] Open
Abstract
Exceptional response to olaparib in a case with Fanconi anemia and metastatic esophageal carcinoma
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Affiliation(s)
- Lucy R Haggstrom
- Illawarra Cancer Care Centre, Wollongong Hospital, Wollongong, NSW, Australia
- Nelune Cancer Care Centre, Prince of Wales Hospital, Randwick, NSW, Australia
| | - Kathy Tucker
- Nelune Cancer Care Centre, Prince of Wales Hospital, Randwick, NSW, Australia
- School of Clinical Medicine, UNSW Medicine & Health, UNSW Sydney, Kensington, NSW, Australia
- Hereditary Cancer Centre, Prince of Wales Hospital, Randwick, NSW, Australia
| | - Rachel Williams
- Nelune Cancer Care Centre, Prince of Wales Hospital, Randwick, NSW, Australia
- School of Clinical Medicine, UNSW Medicine & Health, UNSW Sydney, Kensington, NSW, Australia
- Hereditary Cancer Centre, Prince of Wales Hospital, Randwick, NSW, Australia
| | - Adam Nelson
- Sydney Children's Hospital, Randwick, NSW, Australia
| | - Rebecca Walsh
- NSW Health Pathology Genetics Laboratory, Randwick, NSW, Australia
| | - Daniel Brungs
- Illawarra Cancer Care Centre, Wollongong Hospital, Wollongong, NSW, Australia
- Graduate School of Medicine, University of Wollongong, Wollongong, NSW, Australia
| | - Morteza Aghmesheh
- Illawarra Cancer Care Centre, Wollongong Hospital, Wollongong, NSW, Australia
- Nelune Cancer Care Centre, Prince of Wales Hospital, Randwick, NSW, Australia
- Graduate School of Medicine, University of Wollongong, Wollongong, NSW, Australia
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4
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Borlin PR, Brazzola P, Frontzek K, Zanoni P, Morscher RJ, Hench J, Frank S, Kottke R, Rushing EJ, Goeggel Simonetti B, Steindl K, Guerreiro Stucklin AS. Cancer in children with biallelic BRCA1 variants and Fanconi anemia-like features: Report of a malignant brain tumor in a young child. Pediatr Blood Cancer 2022; 69:e29680. [PMID: 35373906 DOI: 10.1002/pbc.29680] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 02/08/2022] [Accepted: 03/02/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Petra R Borlin
- Department of Oncology and Children's Research Center, University Children's Hospital of Zurich, Zurich, Switzerland
| | - Pierluigi Brazzola
- Clinic of Pediatrics, Pediatric Institute of Southern Switzerland, EOC, Bellinzona, Switzerland
| | - Karl Frontzek
- Institute of Neuropathology, University Hospital Zurich, Zurich, Switzerland
| | - Paolo Zanoni
- Institute of Medical Genetics, University of Zurich, Zurich, Switzerland
| | - Raphael J Morscher
- Department of Oncology and Children's Research Center, University Children's Hospital of Zurich, Zurich, Switzerland
| | - Jurgen Hench
- Department of Neuropathology, Institute of Pathology, Basel University Hospital, Basel, Switzerland
| | - Stephan Frank
- Department of Neuropathology, Institute of Pathology, Basel University Hospital, Basel, Switzerland
| | - Raimund Kottke
- Department of Diagnostic Imaging, University Children's Hospital Zurich, Zurich, Switzerland
| | - Elisabeth J Rushing
- Institute of Neuropathology, University Hospital Zurich, Zurich, Switzerland
| | - Barbara Goeggel Simonetti
- Clinic of Pediatrics, Pediatric Institute of Southern Switzerland, EOC, Bellinzona, Switzerland.,Department of Neurology, Inselspital, Bern University Hospital, and University of Bern, Bern, Switzerland.,Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Katharina Steindl
- Institute of Medical Genetics, University of Zurich, Zurich, Switzerland
| | - Ana S Guerreiro Stucklin
- Department of Oncology and Children's Research Center, University Children's Hospital of Zurich, Zurich, Switzerland
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5
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Zhang J, Wang J, Wu J, Huang J, Lin Z, Lin X. UBE2T regulates FANCI monoubiquitination to promote NSCLC progression by activating EMT. Oncol Rep 2022; 48:139. [PMID: 35703356 PMCID: PMC9245069 DOI: 10.3892/or.2022.8350] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 05/06/2022] [Indexed: 12/24/2022] Open
Abstract
Fanconi anemia complementation group I (FANCI) is a critical protein for maintaining DNA stability. However, the exact role of FANCI in tumors remains to be elucidated. The present study aimed to explore the role and potential mechanism of action of FANCI in non-small cell lung cancer (NSCLC). To quantify the expression levels of FANCI and ubiquitin-conjugating enzyme E2T (UBE2T) in NSCLC tissues, reverse-transcription quantitative PCR and western blotting were employed. Cell Counting Kit-8, wound healing and Transwell assays along with flow cytometry analysis and tumor xenograft were used to investigate the biological effects of FANCI in NSCLC in vitro and in vivo. The binding of FANCI with UBE2T was confirmed using a co-immunoprecipitation assay. Epithelial-to-mesenchymal transition (EMT) protein markers were quantified via western blotting. The results showed that FANCI expression level was higher in NSCLC tumor tissues, compared with adjacent tissues. In A549 and H1299 cells, knockdown of FANCI inhibited cell proliferation, migration, invasion, cell cycle and EMT in vitro. Tumor growth was repressed in vitro, upon downregulation of FANCI expression. UBE2T was observed to directly bind to FANCI and regulate its monoubiquitination. Overexpression of UBE2T reversed the effects induced by FANCI knockdown in NSCLC cells. Furthermore, it was noted that FANCI interacted with WD repeat domain 48 (WDR48). Overexpression of WDR48 reversed the effects of FANCI on cell proliferation, migration and EMT. In conclusion, FANCI was identified to be a putative oncogene in NSCLC, wherein FANCI was monouniubiquitinated by UBE2T to regulate cell growth, migration and EMT through WDR48. The findings suggested that FANCI could be used as a prognostic biomarker and therapeutic target for NSCLC.
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Affiliation(s)
- Jiguang Zhang
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Jingdong Wang
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Jincheng Wu
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Jianyuan Huang
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Zhaoxian Lin
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Xing Lin
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
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Arora M, Bogenberger JM, Abdelrahman AM, Yonkus J, Alva-Ruiz R, Leiting JL, Chen X, Serrano Uson Junior PL, Dumbauld CR, Baker AT, Gamb SI, Egan JB, Zhou Y, Nagalo BM, Meurice N, Eskelinen EL, Salomao MA, Kosiorek HE, Braggio E, Barrett MT, Buetow KH, Sonbol MB, Mansfield AS, Roberts LR, Bekaii-Saab TS, Ahn DH, Truty MJ, Borad MJ. Synergistic combination of cytotoxic chemotherapy and cyclin-dependent kinase 4/6 inhibitors in biliary tract cancers. Hepatology 2022; 75:43-58. [PMID: 34407567 DOI: 10.1002/hep.32102] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 07/13/2021] [Accepted: 07/14/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS Biliary tract cancers (BTCs) are uncommon, but highly lethal, gastrointestinal malignancies. Gemcitabine/cisplatin is a standard-of-care systemic therapy, but has a modest impact on survival and harbors toxicities, including myelosuppression, nephropathy, neuropathy, and ototoxicity. Whereas BTCs are characterized by aberrations activating the cyclinD1/cyclin-dependent kinase (CDK)4/6/CDK inhibitor 2a/retinoblastoma pathway, clinical use of CDK4/6 inhibitors as monotherapy is limited by lack of validated biomarkers, diffident preclinical efficacy, and development of acquired drug resistance. Emerging studies have explored therapeutic strategies to enhance the antitumor efficacy of CDK4/6 inhibitors by the combination with chemotherapy regimens, but their mechanism of action remains elusive. APPROACH AND RESULTS Here, we report in vitro and in vivo synergy in BTC models, showing enhanced efficacy, reduced toxicity, and better survival with a combination comprising gemcitabine/cisplatin and CDK4/6 inhibitors. Furthermore, we demonstrated that abemaciclib monotherapy had only modest efficacy attributable to autophagy-induced resistance. Notably, triplet therapy was able to potentiate efficacy through elimination of the autophagic flux. Correspondingly, abemaciclib potentiated ribonucleotide reductase catalytic subunit M1 reduction, resulting in sensitization to gemcitabine. CONCLUSIONS As such, these data provide robust preclinical mechanistic evidence of synergy between gemcitabine/cisplatin and CDK4/6 inhibitors and delineate a path forward for translation of these findings to preliminary clinical studies in advanced BTC patients.
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Affiliation(s)
- Mansi Arora
- Division of Hematology/Oncology, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA.,Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Mayo Clinic Cancer Center, Mayo Clinic, Phoenix, Arizona, USA
| | - James M Bogenberger
- Division of Hematology/Oncology, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA
| | | | - Jennifer Yonkus
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | | | | | - Xianfeng Chen
- Department of Informatics, Mayo Clinic, Scottsdale, Arizona, USA
| | | | - Chelsae R Dumbauld
- Division of Hematology/Oncology, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA
| | - Alexander T Baker
- Division of Hematology/Oncology, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA.,Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Mayo Clinic Cancer Center, Mayo Clinic, Phoenix, Arizona, USA.,Department of Molecular Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Scott I Gamb
- Microscopy and Cell Analysis Core, Mayo Clinic, Rochester, Minnesota, USA
| | - Jan B Egan
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Yumei Zhou
- Division of Hematology/Oncology, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA.,Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Mayo Clinic Cancer Center, Mayo Clinic, Phoenix, Arizona, USA.,Department of Molecular Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Bolni Marius Nagalo
- Division of Hematology/Oncology, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA.,Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Mayo Clinic Cancer Center, Mayo Clinic, Phoenix, Arizona, USA.,Department of Molecular Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Nathalie Meurice
- Division of Hematology/Oncology, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA.,Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Mayo Clinic Cancer Center, Mayo Clinic, Phoenix, Arizona, USA
| | | | - Marcela A Salomao
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Scottsdale, Arizona, USA
| | - Heidi E Kosiorek
- Department of Health Sciences Research, Mayo Clinic, Scottsdale, Arizona, USA
| | - Esteban Braggio
- Division of Hematology/Oncology, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA
| | - Michael T Barrett
- Division of Hematology/Oncology, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA.,Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Mayo Clinic Cancer Center, Mayo Clinic, Phoenix, Arizona, USA
| | - Kenneth H Buetow
- Division of Hematology/Oncology, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA
| | - Mohamad B Sonbol
- Division of Hematology/Oncology, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA
| | - Aaron S Mansfield
- Division of Medical Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Lewis R Roberts
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Tanios S Bekaii-Saab
- Division of Hematology/Oncology, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA.,Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Mayo Clinic Cancer Center, Mayo Clinic, Phoenix, Arizona, USA
| | - Daniel H Ahn
- Division of Hematology/Oncology, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA.,Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Mayo Clinic Cancer Center, Mayo Clinic, Phoenix, Arizona, USA
| | - Mark J Truty
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Mitesh J Borad
- Division of Hematology/Oncology, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA.,Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Mayo Clinic Cancer Center, Mayo Clinic, Phoenix, Arizona, USA.,Department of Molecular Medicine, Mayo Clinic, Rochester, Minnesota, USA
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7
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Ye G, Liu Y, Huang L, Zhang C, Sheng Y, Wu B, Wu C, Qi Y. miRNA-218/FANCI is associated with metastasis and poor prognosis in lung adenocarcinoma: a bioinformatics analysis. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1298. [PMID: 34532435 PMCID: PMC8422123 DOI: 10.21037/atm-21-3823] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 08/11/2021] [Indexed: 12/25/2022]
Abstract
Background In this study, tumor microarray analysis was used to screen the key messenger RNAs (mRNAs) and microRNAs related to the progression of lung adenocarcinoma (LUAD), in order to provide a theoretical basis for early diagnosis, therapeutic targets, and prognosis evaluation of patients with LUAD. Methods The mRNA and miRNA expression datasets came from the Gene Expression Omnibus (GEO) project database. Differentially expressed genes (DEGs) and microRNAs (DEMs) between LUAD tissues and adjacent lung tissue were obtained using GEO2R. The Search Tool for the Retrieval of Interacting Genes website was also employed to construct and visualize the interactions of overlapped DEGs. The overall survival of DEMs was investigated using the Kaplan-Meier plotter. The TargetScan website (http://www.targetscan.org/) was used to verify the relationship between FA Complementation Group I (FANCI) and the expression of miRNA-218 (miR-218). The expression of FANCI was verified using the GEO and Human Protein Atlas databases, as well as Real Time Quantitative PCR using our own samples. Next, we analyzed the relationship between the expression of FANCI and the clinicopathological characteristics as well as the prognosis of patients with LUAD. We also explored whether the FANCI was related to immune cell infiltration in LUAD. Results FANCI was identified as a hub gene and associated with poor OS. We found that miR-218 negatively regulates FANCI mRNA expression. At the mRNA expression and protein level, FANCI was more highly expressed in LUAD tissues. The expression of FANCI in LUAD was related to tumor size (χ2=13.96, P<0.001), lymphatic metastasis (χ2=3.88, P<0.05), distant metastasis (χ2=45.39, P<0.001), and stage (χ2=11.03, P<0.05). In addition, the Cox regression model found that FANCI mRNA expression was an independent predictive factor of patient survival (P<0.05). FANCI expression was both weakly related to B cells and neutrophil infiltration in LUAD. Conclusions miR-218 may negatively regulate FANCI, and FANCI could promote metastasis via extracellular matrix (ECM) receptor interaction, leading to poor prognosis of LUAD. FANCI may be a key gene to the determine metastasis and poor prognosis in patients with LUAD. Changes in the immune microenvironment may be the mechanism through which FANCI leads to poor prognosis of LUAD.
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Affiliation(s)
- Guanchao Ye
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yafei Liu
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lan Huang
- Biological Cell Therapy Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chunyang Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yinliang Sheng
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Bin Wu
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chunli Wu
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yu Qi
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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8
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Hammarsten O, Muslimovic A, Thunström S, Ek T, Johansson P. Use of the cell division assay to diagnose Fanconi anemia patients' hypersensitivity to mitomycin C. CYTOMETRY. PART B, CLINICAL CYTOMETRY 2021; 100:370-376. [PMID: 32857894 PMCID: PMC8246776 DOI: 10.1002/cyto.b.21950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 07/21/2020] [Accepted: 08/19/2020] [Indexed: 12/19/2022]
Abstract
The recently reported cell division assay (CDA) was optimized to measure the relative sensitivity of cells to cytotoxic drugs in vitro. Here, we investigated the in vitro hypersensitivity of lymphocytes from Fanconi anemia (FA) patients, to cytotoxic drugs using CDA. Peripheral blood mononuclear cells (PBMC) as well as cell lines derived from FA patients were treated with two DNA interstrand crosslinking (ICL) agents, mitomycin C and cyclophosphamide. Our data indicate that the CDA detects hypersensitivity of cells from FA patients to mitomycin C. Further, cell lines derived from FA-patients were also hypersensitive to mitomycin C as well as cyclophosphamide, when assayed by the CDA. This study suggests that the CDA is a useful alternative for the diagnosis of FA patients' hypersensitivity to ICL agents.
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Affiliation(s)
- Ola Hammarsten
- Department of Laboratory MedicineSahlgrenska Academy at the University of GothenburgGothenburgSweden
- Laboratory of Clinical ChemistrySahlgrenska University HospitalGothenburgSweden
| | - Aida Muslimovic
- Laboratory of Clinical ChemistrySahlgrenska University HospitalGothenburgSweden
| | - Sofia Thunström
- Clinical GeneticsSahlgrenska University HospitalGothenburgSweden
- Department of Internal Medicine and Clinical Nutrition, Sahlgrenska AcademyGothenburg UniversityGothenburgSweden
| | - Torben Ek
- Children's Cancer Centre, Queen Silvia Children's HospitalGothenburgSweden
| | - Pegah Johansson
- Laboratory of Clinical ChemistrySahlgrenska University HospitalGothenburgSweden
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9
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DNA polymerase ι compensates for Fanconi anemia pathway deficiency by countering DNA replication stress. Proc Natl Acad Sci U S A 2020; 117:33436-33445. [PMID: 33376220 DOI: 10.1073/pnas.2008821117] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Fanconi anemia (FA) is caused by defects in cellular responses to DNA crosslinking damage and replication stress. Given the constant occurrence of endogenous DNA damage and replication fork stress, it is unclear why complete deletion of FA genes does not have a major impact on cell proliferation and germ-line FA patients are able to progress through development well into their adulthood. To identify potential cellular mechanisms that compensate for the FA deficiency, we performed dropout screens in FA mutant cells with a whole genome guide RNA library. This uncovered a comprehensive genome-wide profile of FA pathway synthetic lethality, including POLI and CDK4 As little is known of the cellular function of DNA polymerase iota (Pol ι), we focused on its role in the loss-of-function FA knockout mutants. Loss of both FA pathway function and Pol ι leads to synthetic defects in cell proliferation and cell survival, and an increase in DNA damage accumulation. Furthermore, FA-deficient cells depend on the function of Pol ι to resume replication upon replication fork stalling. Our results reveal a critical role for Pol ι in DNA repair and replication fork restart and suggest Pol ι as a target for therapeutic intervention in malignancies carrying an FA gene mutation.
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10
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Lach FP, Singh S, Rickman KA, Ruiz PD, Noonan RJ, Hymes KB, DeLacure MD, Kennedy JA, Chandrasekharappa SC, Smogorzewska A. Esophageal cancer as initial presentation of Fanconi anemia in patients with a hypomorphic FANCA variant. Cold Spring Harb Mol Case Stud 2020; 6:mcs.a005595. [PMID: 33172906 PMCID: PMC7784490 DOI: 10.1101/mcs.a005595] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 10/26/2020] [Indexed: 11/24/2022] Open
Abstract
Fanconi anemia (FA) is a clinically heterogenous and genetically diverse disease with 22 known complementation groups (FA-A to FA-W), resulting from the inability to repair DNA interstrand cross-links. This rare disorder is characterized by congenital defects, bone marrow failure, and cancer predisposition. FANCA is the most commonly mutated gene in FA and a variety of mostly private mutations have been documented, including small and large indels and point and splicing variants. Genotype-phenotype associations in FA are complex, and a relationship between particular FANCA variants and the observed cellular phenotype or illness severity remains unclear. In this study, we describe two siblings with compound heterozygous FANCA variants (c.3788_3790delTCT and c.4199G > A) who both presented with esophageal squamous cell carcinoma at the age of 51. The proband came to medical attention when he developed pancytopenia after a single cycle of low-dose chemotherapy including platinum-based therapy. Other than a minor thumb abnormality, neither patient had prior findings to suggest FA, including normal blood counts and intact fertility. Patient fibroblasts from both siblings display increased chromosomal breakage and hypersensitivity to interstrand cross-linking agents as seen in typical FA. Based on our functional data demonstrating that the c.4199G > A/p.R1400H variant represents a hypomorphic FANCA allele, we conclude that the residual activity of the Fanconi anemia repair pathway accounts for lack of spontaneous bone marrow failure or infertility with the late presentation of malignancy as the initial disease manifestation. This and similar cases of adult-onset esophageal cancer stress the need for chromosome breakage testing in patients with early onset of aerodigestive tract squamous cell carcinomas before platinum-based therapy is initiated.
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Affiliation(s)
- Francis P Lach
- Laboratory of Genome Maintenance, The Rockefeller University, New York, New York, 10065 USA
| | - Sonia Singh
- Laboratory of Genome Maintenance, The Rockefeller University, New York, New York, 10065 USA.,Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, 10065 USA
| | - Kimberly A Rickman
- Laboratory of Genome Maintenance, The Rockefeller University, New York, New York, 10065 USA
| | - Penelope D Ruiz
- Laboratory of Genome Maintenance, The Rockefeller University, New York, New York, 10065 USA
| | - Raymond J Noonan
- Laboratory of Genome Maintenance, The Rockefeller University, New York, New York, 10065 USA
| | - Kenneth B Hymes
- New York University School of Medicine, Division of Hematology and Oncology, Department of Internal Medicine, Laura and Isaac Perlmutter Cancer Center, New York, New York, 10016 USA
| | - Mark D DeLacure
- Department of Otolaryngology-Head and Neck Surgery, New York University School of Medicine, New York, New York 10003, USA.,Departments of Plastic Surgery and Neurosurgery, New York University, New York, New York 10016, USA
| | - Jennifer A Kennedy
- Laboratory of Genome Maintenance, The Rockefeller University, New York, New York, 10065 USA
| | - Settara C Chandrasekharappa
- Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Agata Smogorzewska
- Laboratory of Genome Maintenance, The Rockefeller University, New York, New York, 10065 USA
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Zheng P, Li L. FANCI Cooperates with IMPDH2 to Promote Lung Adenocarcinoma Tumor Growth via a MEK/ERK/MMPs Pathway. Onco Targets Ther 2020; 13:451-463. [PMID: 32021289 PMCID: PMC6970268 DOI: 10.2147/ott.s230333] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 12/12/2019] [Indexed: 01/15/2023] Open
Abstract
Purpose Fanconi anemia complementation group I (FANCI) is a key protein in ribosome biogenesis and DNA repair. Here, we aimed to determine the clinical significance, prognostic value and biology functions of FANCI in lung adenocarcinoma (LUAD). Methods The expression of FANCI in LUAD tissue and its relationship with patient outcomes were assessed using bioinformatics analysis, as well as quantitative reverse-transcription PCR (qRT-PCR) and Western blot analysis of LUAD tissue and adjacent normal lung tissue. The chi-squared test and Cox regression analysis were used to analyze the clinical significance of FANCI expression. The biological effects of FANCI knockdown in human LUAD cell lines were investigated by analysis of proliferation, colony formation, cell cycle distribution, migration, and invasion in vitro, and monitoring of tumor xenograft growth in vivo. FANCI interactions with IMPDH2 and involvement in MEK/ERK/MMPs signaling were analyzed using co-immunoprecipitation assays, immunofluorescence microscopy, and Western blotting. Results FANCI was identified as a hub gene for LUAD. FANCI expression was upregulated in LUAD tissues compared with normal lung tissues and was positively associated with lymphatic metastasis, distant metastasis, and poor outcome. FANCI was also an independent prognostic factor in LUAD patients. Knockdown of FANCI in LUAD cell lines decreased their proliferation, migration, invasion, and cell cycle progression in vitro, and decreased the growth of xenografts in mice. Direct binding of FANCI to IMPDH2 decreased IMPDH2 degradation, regulated activation of MEK/ERK/MMPs signaling. Overexpression of IMPDH2 reversed the inhibitory effects of FANCI knockdown. Conclusion FANCI may act as an oncogene in LUAD by cooperating with IMPDH2 to promote cell proliferation via the MEK/ERK/MMPs pathway. These results identify FANCI as a potential prognostic biomarker and therapeutic target for LUAD.
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Affiliation(s)
- Pengchao Zheng
- Department of Cardio-Thoracic Surgery, Second People's Hospital of Jinmen, Jingmen, Hubei 448000, People's Republic of China.,Department of Cardio-Thoracic Surgery, Jingchu Center Hospital Affiliated to the Institute of Technology, Jingmen, Hubei 448000, People's Republic of China
| | - Lei Li
- Department of Cardio-Thoracic Surgery, Second People's Hospital of Jinmen, Jingmen, Hubei 448000, People's Republic of China.,Department of Cardio-Thoracic Surgery, Jingchu Center Hospital Affiliated to the Institute of Technology, Jingmen, Hubei 448000, People's Republic of China
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