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Taylor SJ, Hollis RL, Gourley C, Herrington CS, Langdon SP, Arends MJ. FANCD2 expression affects platinum response and further characteristics of high grade serous ovarian cancer in cells with different genetic backgrounds. Exp Mol Pathol 2024; 138:104916. [PMID: 38959632 DOI: 10.1016/j.yexmp.2024.104916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 06/19/2024] [Accepted: 06/28/2024] [Indexed: 07/05/2024]
Abstract
High-grade serous ovarian cancer (HGSOC) is the most prevalent subtype of ovarian cancer and demonstrates 5-year survival of just 40%. One of the major causes of mortality is the development of tumour resistance to platinum-based chemotherapy, which can be modulated by dysregulation of DNA damage repair pathways. We therefore investigated the contribution of the DNA interstrand crosslink repair protein FANCD2 to chemosensitivity in HGSOC. Increased FANCD2 protein expression was observed in some cell line models of platinum resistant HGSOC compared with paired platinum sensitive models. Knockdown of FANCD2 in some cell lines, including the platinum resistant PEO4, led to increased carboplatin sensitivity. Investigation into mechanisms of FANCD2 regulation showed that increased FANCD2 expression in platinum resistant cells coincides with increased expression of mTOR. Treatment with mTOR inhibitors resulted in FANCD2 depletion, suggesting that mTOR can mediate platinum sensitivity via regulation of FANCD2. Tumours from a cohort of HGSOC patients showed varied nuclear and cytoplasmic FANCD2 expression, however this was not significantly associated with clinical characteristics. Knockout of FANCD2 was associated with increased cell migration, which may represent a non-canonical function of cytoplasmic FANCD2. We conclude that upregulation of FANCD2, possibly mediated by mTOR, is a potential mechanism of chemoresistance in HGSOC and modulation of FANCD2 expression can influence platinum sensitivity and other tumour cell characteristics.
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Affiliation(s)
- Sarah J Taylor
- Edinburgh Pathology, Cancer Research UK Scotland Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom.
| | - Robert L Hollis
- Nicola Murray Centre for Ovarian Cancer Research, Cancer Research UK Scotland Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Charlie Gourley
- Nicola Murray Centre for Ovarian Cancer Research, Cancer Research UK Scotland Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - C Simon Herrington
- Edinburgh Pathology, Cancer Research UK Scotland Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom; Nicola Murray Centre for Ovarian Cancer Research, Cancer Research UK Scotland Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Simon P Langdon
- Edinburgh Pathology, Cancer Research UK Scotland Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Mark J Arends
- Edinburgh Pathology, Cancer Research UK Scotland Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom.
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Yu M, Huo D, Yu K, Zhou K, Xu F, Meng Q, Cai Y, Chen X. Crosstalk of different cell-death patterns predicts prognosis and drug sensitivity in glioma. Comput Biol Med 2024; 175:108532. [PMID: 38703547 DOI: 10.1016/j.compbiomed.2024.108532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/17/2024] [Accepted: 04/28/2024] [Indexed: 05/06/2024]
Abstract
BACKGROUND Glioma is a malignant brain tumor originating from glial cells, and there still a challenge to accurately predict the prognosis. Programmed cell death (PCD) plays a key role in tumorigenesis and immune response. However, the crosstalk and potential role of various PCDs in prognosis and tumor microenvironment remains unknown. Therefore, we comprehensively discussed the relationship between different models of PCD and the prognosis of glioma and provided new ideas for the optimal targeted therapy of glioma. MATERIALS AND METHODS We compared and analyzed the role of 14 PCD patterns on the prognosis from different levels. We constructed the cell death risk score (CDRS) index and conducted a comprehensive analysis of CDRS and TME characteristics, clinical characteristics, and drug response. RESULTS Effects of different PCDs at the genomic, functional, and immune microenvironment levels were discussed. CDRS index containing 6 gene signatures and a nomogram were established. High CDRS is associated with a worse prognosis. Through transcriptome and single-cell data, we found that patients with high CDRS showed stronger immunosuppressive characteristics. Moreover, the high-CDRS group was resistant to the traditional glioma chemotherapy drug Vincristine, but more sensitive to the Temozolomide and the clinical experimental drug Bortezomib. In addition, we identified 19 key potential therapeutic targets during malignant differentiation of tumor cells. CONCLUSION Overall, we provide the first systematic description of the role of 14 PCDs in glioma. A new CDRS model was built to predict the prognosis and to provide a new idea for the targeted therapy of glioma.
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Affiliation(s)
- Meini Yu
- Department of pharmacogenomics, College of Bioinformatics Science and Technology, Harbin Medical University, 150081, Harbin, Heilongjiang, China
| | - Diwei Huo
- Fourth Affiliated Hospital of Harbin Medical University, China
| | - Kexin Yu
- Department of pharmacogenomics, College of Bioinformatics Science and Technology, Harbin Medical University, 150081, Harbin, Heilongjiang, China
| | - Kun Zhou
- Department of pharmacogenomics, College of Bioinformatics Science and Technology, Harbin Medical University, 150081, Harbin, Heilongjiang, China
| | - Fei Xu
- Department of pharmacogenomics, College of Bioinformatics Science and Technology, Harbin Medical University, 150081, Harbin, Heilongjiang, China
| | - Qingkang Meng
- Department of pharmacogenomics, College of Bioinformatics Science and Technology, Harbin Medical University, 150081, Harbin, Heilongjiang, China
| | - Yiyang Cai
- Department of pharmacogenomics, College of Bioinformatics Science and Technology, Harbin Medical University, 150081, Harbin, Heilongjiang, China
| | - Xiujie Chen
- Department of pharmacogenomics, College of Bioinformatics Science and Technology, Harbin Medical University, 150081, Harbin, Heilongjiang, China.
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Rasouli N, Shahbazi-Gahrouei D, Hematti S, Baradaran B, Salehi R, Varshosaz J, Jafarizad A. Assessment of Oxaliplatin-Loaded Iodine Nanoparticles for Chemoradiotherapy of Human Colorectal Cancer (HT-29) Cells. Polymers (Basel) 2022; 14:polym14194131. [PMID: 36236079 PMCID: PMC9572447 DOI: 10.3390/polym14194131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/23/2022] [Accepted: 09/23/2022] [Indexed: 11/07/2022] Open
Abstract
Colorectal cancer is highly prevalent worldwide and has significant morbidity and mortality in humans. High-atomic-number nanoparticles such as iodine can act as X-rays absorbers to increase the local dose. The synthesis and fabrication of oxaliplatin-loaded iodine nanoparticles, their characterization, cell toxicity, radiosensitivity, cell apoptosis, and cell cycle assay in human colorectal cancer (HT-29) cells are investigated. Results show that the synthesis of a new iodine nanoparticle, polymerized triiodobenzene coated with chitosan and combined with oxaliplatin as a chemotherapeutic drug, performed well in vitro in an intracellular radiosensitizer as chemoradiotherapy agent in HT-29 cell lines. Findings also show that the INPs alone have no impact on cell cycle development and apoptosis. In contrast, oxaliplatin-loaded INPs along with 2 and 6 MV radiation doses produced more apoptosis. The interaction of INPs with mega-voltage photon energies is the cause of a major radiosensitization enhancement in comparison to radiation alone. Furthermore, results show that INPs may work as radiosensitization nanoprobe agents in the treatment of HT-29 cells due to their effect on increasing radiation dose absorption. Overall, iodine nanoparticles may be used in the treatment of colorectal cancers in clinical studies.
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Affiliation(s)
- Naser Rasouli
- Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
| | - Daryoush Shahbazi-Gahrouei
- Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
- Correspondence: ; Tel.: +98-31-37929095; Fax: +98-31-36688597
| | - Simin Hematti
- Department of Radiooncology, School of Medicine, Seyyed Al-Shohada Hospital, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5165665931, Iran
| | - Roya Salehi
- Drug Applied Research Center, Department of Medical Nanotechnology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz 5165665931, Iran
| | - Jaleh Varshosaz
- Department of Pharmaceutics, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
| | - Abbas Jafarizad
- Department of Chemical Engineering, Sahand University of Technology, Tabriz 5165665931, Iran
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Song L, Wu J, Fu H, Wu C, Tong X, Zhang M. Abnormally Expressed Ferroptosis-Associated FANCD2 in Mediating the Temozolomide Resistance and Immune Response in Glioblastoma. Front Pharmacol 2022; 13:921963. [PMID: 35754466 PMCID: PMC9213730 DOI: 10.3389/fphar.2022.921963] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/20/2022] [Indexed: 11/25/2022] Open
Abstract
Ferroptosis-related genes (FRGs) have been identified as potential targets involved in oncogenesis and cancer therapeutic response. Nevertheless, the specific roles and underlying mechanisms of FRGs in GBM and temozolomide (TMZ) resistance remain unclear. Through comprehensive bioinformatics, we found that ferroptosis-related Fanconi anemia complementation group D2 (FANCD2) was significantly up-regulated in GBM tissues, and the high expression level of FANCD2 was related to the poor prognosis in primary and recurrent GBM patients. Furthermore, FANCD2 could promote TMZ resistance by attenuating ferroptosis in GBM cells. Knockdown of FANCD2 could increase reactive oxygen species (ROS) levels and inhibit cell survival. The two characteristics were associated with ferroptosis in TMZ-resistant GBM cells T98G-R and U118-R. The Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis indicated that aberrantly expressed FANCD2 was potentially linked with several cancer-associated signaling pathways, including chromosome segregation, DNA replication, and cell cycle transition. In addition, we demonstrated that FANCD2 expression was positively correlated with several tumor-infiltrating lymphocytes (TILs) and multiple immune-associated signatures in GBM. Therefore, up-regulated FANCD2 could protect GBM cells from ferroptosis and promote TMZ resistance. FANCD2 may be a novel therapeutic target in GBM.
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Affiliation(s)
- Liying Song
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jiali Wu
- Department of Otolaryngology, Hunan Want Want Hospital, Changsha, China
| | - Hua Fu
- Department of Pathology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Cuifang Wu
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xiaopei Tong
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Mingyu Zhang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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Abdelhaleem Ali AM, Abo El-Enin HA. In-vitro/in-vivo evaluation of Paclitaxel Freeze-Dried micellar nanoparticles intended for buccal delivery. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Martin M, Sautois B. Early onset of head and neck squamous-cell carcinoma and fatal toxicity with concurrent chemoradiotherapy in a patient compound heterozygote for FANCA gene. Oral Oncol 2020; 112:104989. [PMID: 32888817 DOI: 10.1016/j.oraloncology.2020.104989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 08/27/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Marie Martin
- Department of Human Genetics, University Hospital of Liege, CHU Sart Tilman, Liege, Belgium
| | - Brieuc Sautois
- Department of Medical Oncology, University Hospital of Liege, CHU Sart Tilman, Liege, Belgium.
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Matos BN, Pereira MN, Bravo MDO, Cunha-Filho M, Saldanha-Araújo F, Gratieri T, Gelfuso GM. Chitosan nanoparticles loading oxaliplatin as a mucoadhesive topical treatment of oral tumors: Iontophoresis further enhances drug delivery ex vivo. Int J Biol Macromol 2019; 154:1265-1275. [PMID: 31726173 DOI: 10.1016/j.ijbiomac.2019.11.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 09/27/2019] [Accepted: 11/01/2019] [Indexed: 11/27/2022]
Abstract
Tumors located in the oral mucosa are challenging to treat since surgery can lead to aesthetic, speech, and salivation problems, radiotherapy alone is often ineffective, and systemic chemotherapy brings meaningful side effects to the patient. Here, we proposed to develop mucoadhesive chitosan nanoparticles entrapping the chemotherapeutic oxaliplatin (OXPt) and to evaluate ex vivo its penetration in porcine mucosa under both passive and iontophoretic topical treatments. OXPt-loaded chitosan nanoparticles presented a small hydrodynamic size (188 ± 20 nm), narrow distribution (PDI of 0.28 ± 0.02) and positive zeta potential (+44.8 ± 2.8 mV). These nanoparticles provided a "burst effect" on drug release followed by a longer-term controlled release. When applied to the oral mucosa, the chitosan nanoparticles increased 3-fold drug penetration, and this rate was maintained even when the mucosa was "washed" with a buffer to mimic salivation. Iontophoresis doubled the amount of OXPt transported to the mucosa. These amounts exceeded the dose required to cause cell death of an oral tumor cell line. Besides, chitosan nanoparticles increased the rate of cells that entered into apoptosis. In summary, this study points to the feasibility of topical therapy with chitosan nanoparticles, potentialized by the application of iontophoresis, to treat oral tumors.
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Affiliation(s)
- Breno N Matos
- Laboratory of Food, Drug, and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, Campus Universitário Darcy Ribeiro, s/n. 70910-900, Asa Norte, Brasília, DF, Brazil; Centro Universitário Euroamericano, Avenida das Nações, Trecho 0, Conjunto 05 - 70790-160, Brasília, DF, Brazil
| | - Maíra N Pereira
- Laboratory of Food, Drug, and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, Campus Universitário Darcy Ribeiro, s/n. 70910-900, Asa Norte, Brasília, DF, Brazil
| | - Martha de O Bravo
- Laboratory of Molecular Pharmacology, Department of Pharmacy, School of Health Sciences, University of Brasília, 70910-900 Brasília, DF, Brazil
| | - Marcilio Cunha-Filho
- Laboratory of Food, Drug, and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, Campus Universitário Darcy Ribeiro, s/n. 70910-900, Asa Norte, Brasília, DF, Brazil
| | - Felipe Saldanha-Araújo
- Laboratory of Molecular Pharmacology, Department of Pharmacy, School of Health Sciences, University of Brasília, 70910-900 Brasília, DF, Brazil
| | - Tais Gratieri
- Laboratory of Food, Drug, and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, Campus Universitário Darcy Ribeiro, s/n. 70910-900, Asa Norte, Brasília, DF, Brazil
| | - Guilherme M Gelfuso
- Laboratory of Food, Drug, and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, Campus Universitário Darcy Ribeiro, s/n. 70910-900, Asa Norte, Brasília, DF, Brazil.
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Moes-Sosnowska J, Rzepecka IK, Chodzynska J, Dansonka-Mieszkowska A, Szafron LM, Balabas A, Lotocka R, Sobiczewski P, Kupryjanczyk J. Clinical importance of FANCD2, BRIP1, BRCA1, BRCA2 and FANCF expression in ovarian carcinomas. Cancer Biol Ther 2019; 20:843-854. [PMID: 30822218 PMCID: PMC6606037 DOI: 10.1080/15384047.2019.1579955] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE DNA repair pathways are potential targets of molecular therapy in cancer patients. The FANCD2, BRIP1, BRCA1/2, and FANCF genes are involved in homologous recombination DNA repair, which implicates their possible role in cell response to DNA-damaging agents. We evaluated a clinical significance of pre-treatment expression of these genes at mRNA level in 99 primary, advanced-stage ovarian carcinomas from patients, who later received taxane-platinum (TP) or platinum-cyclophosphamide (PC) treatment. METHODS Gene expression was determined with the use of Real-Time PCR. The BRCA2 and BRIP1 gene sequence was investigated with the use of SSCP, dHPLC, and PCR-sequencing. RESULTS Increased FANCD2 expression occurred to be a negative prognostic factor for all patients (PC+TP:HR 3.85, p = 0.0003 for the risk of recurrence; HR 1.96, p = 0.02 for the risk of death), and this association was even stronger in the TP-treated group (HR 6.7, p = 0.0002 and HR 2.33, p = 0.01, respectively). Elevated BRIP1 expression was the only unfavorable molecular factor in the PC-treated patients (HR 8.37, p = 0.02 for the risk of recurrence). Additionally, an increased FANCD2 and BRCA1/2 expression levels were associated with poor ovarian cancer outcome in either TP53-positive or -negative subgroups of the TP-treated patients, however these groups were small. Sequence analysis identified one protein truncating variant (1/99) in BRCA2 and no mutations (0/56) in BRIP1. CONCLUSIONS Our study shows for the first time that FANCD2 overexpression is a strong negative prognostic factor in ovarian cancer, particularly in patients treated with TP regimen. Moreover, increased mRNA level of the BRIP1 is a negative prognostic factor in the PC-treated patients. Next, changes in the BRCA2 and BRIP1 genes are rare and together with other analyzed FA genes considered as homologous recombination deficiency may not affect the expression level of analyzed genes.
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Affiliation(s)
- Joanna Moes-Sosnowska
- a Department of Immunology , Maria Sklodowska-Curie Institute - Oncology Center , Warsaw , Poland
| | - Iwona K Rzepecka
- b Department of Pathology and Laboratory Diagnostics , Maria Sklodowska-Curie Institute - Oncology Center , Warsaw , Poland
| | - Joanna Chodzynska
- c Laboratory of Bioinformatics and Biostatistics , Maria Sklodowska-Curie Institute - Oncology Center , Warsaw , Poland
| | - Agnieszka Dansonka-Mieszkowska
- b Department of Pathology and Laboratory Diagnostics , Maria Sklodowska-Curie Institute - Oncology Center , Warsaw , Poland
| | - Lukasz M Szafron
- a Department of Immunology , Maria Sklodowska-Curie Institute - Oncology Center , Warsaw , Poland
| | - Aneta Balabas
- d Department of Genetics , Maria Sklodowska-Curie Institute - Oncology Center , Warsaw , Poland
| | - Renata Lotocka
- b Department of Pathology and Laboratory Diagnostics , Maria Sklodowska-Curie Institute - Oncology Center , Warsaw , Poland
| | - Piotr Sobiczewski
- e Department of Gynecologic Oncology , Maria Sklodowska-Curie Institute - Oncology Center , Warsaw , Poland
| | - Jolanta Kupryjanczyk
- b Department of Pathology and Laboratory Diagnostics , Maria Sklodowska-Curie Institute - Oncology Center , Warsaw , Poland
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Acquired SETD2 mutation and impaired CREB1 activation confer cisplatin resistance in metastatic non-small cell lung cancer. Oncogene 2018; 38:180-193. [PMID: 30093630 DOI: 10.1038/s41388-018-0429-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 05/15/2018] [Accepted: 07/05/2018] [Indexed: 02/07/2023]
Abstract
Resistance to chemotherapy remains a critical barrier to effective cancer treatment. Although cisplatin is one of the most commonly used chemotherapeutic agents in the treatment of non-small cell lung cancer (NSCLC), mechanisms of resistance to this drug are not fully understood. Here, we report a novel cisplatin-resistance mechanism involving SET Domain Containing 2 (SETD2), a histone H3 lysine 36 (H3K36) trimethyltransferase, and cAMP-responsive element-binding protein 1 (CREB1). A549 cells selected in vivo to give brain metastases exhibited cisplatin resistance and decreased expression of phosphorylated CREB1. Next-generation sequencing (NGS) analysis identified a missense mutation in SETD2 (p.T1171K), and we demonstrated that SETD2-mediated trimethylation of H3K36 (H3K36me3) and CREB1 phosphorylation are critical for cellular sensitivity to cisplatin. Moreover, we showed that suppression of SETD2 or CREB1 and ectopic expression of mutant SETD2 conferred cisplatin resistance through inhibition of H3K36me3 and ERK activation in NSCLC cells. Our results provide evidence that SETD2 and CREB1 contribute to cisplatin cytotoxicity via regulation of the ERK signaling pathway, and their inactivation may lead to cisplatin resistance.
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Thaker PH, Salani R, Brady WE, Lankes HA, Cohn DE, Mutch DG, Mannel RS, Bell-McGuinn KM, Di Silvestro PA, Jelovac D, Carter JS, Duan W, Resnick KE, Dizon DS, Aghajanian C, Fracasso PM. A phase I trial of paclitaxel, cisplatin, and veliparib in the treatment of persistent or recurrent carcinoma of the cervix: an NRG Oncology Study (NCT#01281852). Ann Oncol 2017; 28:505-511. [PMID: 27998970 DOI: 10.1093/annonc/mdw635] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Background Preclinical studies demonstrate poly(ADP-ribose) polymerase (PARP) inhibition augments apoptotic response and sensitizes cervical cancer cells to the effects of cisplatin. Given the use of cisplatin and paclitaxel as first-line treatment for persistent or recurrent cervical cancer, we aimed to estimate the maximum tolerated dose (MTD) of the PARP inhibitor veliparib when added to chemotherapy. Patients and methods Women with persistent or recurrent cervical carcinoma not amenable to curative therapy were enrolled. Patients had to have received concurrent chemotherapy and radiation as well as possible consolidation chemotherapy; have adequate organ function. The trial utilized a standard 3 + 3 phase I dose escalation with patients receiving paclitaxel 175 mg/m2 on day 1, cisplatin 50 mg/m2 on day 2, and escalating doses of veliparib ranging from 50 to 400 mg orally two times daily on days 1-7. Cycles occurred every 21 days until progression. Dose-limiting toxicities (DLTs) were assessed at first cycle. Fanconi anemia complementation group D2 (FANCD2) foci was evaluated in tissue specimens as a biomarker of response. Results Thirty-four patients received treatment. DLTs (n = 1) were a grade 4 dyspnea, a grade 3 neutropenia lasting ≥3 weeks, and febrile neutropenia. At 400 mg dose level (DL), one of the six patients had a DLT, so the MTD was not reached. Across DLs, the objective response rate (RR) for 29 patients with measurable disease was 34% [95% confidence interval (CI), 20%-53%]; at 400 mg DL, the RR was 60% (n = 3/5; 95% CI, 23%-88%). Median progression-free survival was 6.2 months (95% CI, 2.9-10.1), and overall survival was 14.5 months (95% CI, 8.2-19.4). FANCD2 foci was negative or heterogeneous in 31% of patients and present in 69%. Objective RR were not associated with FANCD2 foci (P = 0.53). Conclusions Combining veliparib with paclitaxel and cisplatin as first-line treatment for persistent or recurrent cervical cancer patients is safe and feasible. Clinical trial information NCT01281852.
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Affiliation(s)
- P H Thaker
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Siteman Cancer Center, Washington University School of Medicine, St. Louis
| | - R Salani
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, The Ohio State University School of Medicine, Columbus, USA
| | - W E Brady
- NRG/Gynecologic Oncology Group Statistical and Data Center, Roswell Park Cancer Institute, Buffalo, USA
| | - H A Lankes
- NRG/Gynecologic Oncology Group Statistical and Data Center, Roswell Park Cancer Institute, Buffalo, USA
| | - D E Cohn
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, The Ohio State University School of Medicine, Columbus, USA
| | - D G Mutch
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Siteman Cancer Center, Washington University School of Medicine, St. Louis
| | - R S Mannel
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Oklahoma, Oklahoma City, USA
| | - K M Bell-McGuinn
- Department of Medicine, Gynecologic Medical Oncology Service, Memorial Sloan Kettering Cancer Center, New York, USA
| | - P A Di Silvestro
- Department of Obstetrics and Gynecology, Women & Infants Hospital, Providence, USA
| | - D Jelovac
- Division of Medical Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, USA
| | - J S Carter
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, USA
| | - W Duan
- Division of Medical Oncology, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus, USA
| | - K E Resnick
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Case Western Reserve University School of Medicine, Cleveland, USA
| | - D S Dizon
- Division of Medical Gynecologic Oncology, Massachusetts General Hospital Cancer Center, Boston, USA
| | - C Aghajanian
- Department of Medicine, Gynecologic Medical Oncology Service, Memorial Sloan Kettering Cancer Center, New York, USA
| | - P M Fracasso
- Division of Hematology/Oncology, Department of Medicine, University of Virginia, Charlottesville, USA
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A germline FANCA alteration that is associated with increased sensitivity to DNA damaging agents. Cold Spring Harb Mol Case Stud 2017; 3:mcs.a001487. [PMID: 28864460 PMCID: PMC5593159 DOI: 10.1101/mcs.a001487] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 04/27/2017] [Indexed: 12/26/2022] Open
Abstract
Defects in genes involved in DNA damage repair (DDR) pathway are emerging as novel biomarkers and targets for new prostate cancer drug therapies. A previous report revealed an association between an exceptional response to cisplatin treatment and a somatic loss of heterozygosity (LOH) of FANCA in a patient with metastatic prostate cancer who also harbored a germline FANCA variant (S1088F). Although germline FANCA mutations are the most frequent alterations in patients with Fanconi anemia, germline alterations are less common in prostate cancer. We hypothesized that the germline S1088F FANCA variant in combination with FANCA LOH was deleterious for FANCA function and contributed to the patient's exceptional response to cisplatin. We show that although it properly localizes to the nucleus, the S1088F FANCA mutant protein disrupts the FANC protein complex resulting in increased sensitivity to DNA damaging agents. Because molecular stratification is emerging as a strategy for treating men with metastatic, castrate-resistant prostate cancer harboring specific DDR gene defects, our findings suggest that more biomarker studies are needed to better define clinically relevant germline and somatic alterations.
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Lambert MW. Nuclear alpha spectrin: Critical roles in DNA interstrand cross-link repair and genomic stability. Exp Biol Med (Maywood) 2016; 241:1621-38. [PMID: 27480253 PMCID: PMC4999628 DOI: 10.1177/1535370216662714] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Non-erythroid alpha spectrin (αIISp) is a structural protein which we have shown is present in the nucleus of human cells. It interacts with a number of nuclear proteins such as actin, lamin, emerin, chromatin remodeling factors, and DNA repair proteins. αIISp's interaction with DNA repair proteins has been extensively studied. We have demonstrated that nuclear αIISp is critical in DNA interstrand cross-link (ICL) repair in S phase, in both genomic (non-telomeric) and telomeric DNA, and in maintenance of genomic stability following ICL damage to DNA. We have proposed that αIISp acts as a scaffold aiding to recruit repair proteins to sites of damage. This involvement of αIISp in ICL repair and telomere maintenance after ICL damage represents new and critical functions for αIISp. These studies have led to development of a model for the role of αIISp in DNA ICL repair. They have been aided by examination of cells from patients with Fanconi anemia (FA), a repair-deficient genetic disorder in which a deficiency in αIISp leads to defective ICL repair in genomic and telomeric DNA, telomere dysfunction, and chromosome instability following DNA ICL damage. We have shown that loss of αIISp in FA cells is due to increased breakdown by the protease, µ-calpain. Importantly, we have demonstrated that this deficiency can be corrected by knockdown of µ-calpain and restoring αIISp levels to normal. This corrects a number of the phenotypic deficiencies in FA after ICL damage. These studies suggest a new and unexplored direction for therapeutically restoring genomic stability in FA cells and for correcting numerous phenotypic deficiencies occurring after ICL damage. Developing a more in-depth understanding of the importance of the interaction of αIISp with other nuclear proteins could significantly enhance our knowledge of the consequences of loss of αIISp on critical nuclear processes.
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Affiliation(s)
- Muriel W Lambert
- Department of Pathology and Laboratory Medicine, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
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Zhang P, Sridharan D, Lambert MW. Nuclear α Spectrin Differentially Affects Monoubiquitinated Versus Non-Ubiquitinated FANCD2 Function After DNA Interstrand Cross-Link Damage. J Cell Biochem 2015; 117:671-83. [PMID: 26297932 DOI: 10.1002/jcb.25352] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 08/19/2015] [Indexed: 01/21/2023]
Abstract
Nonerythroid α spectrin (αIISp) and the Fanconi anemia (FA) protein, FANCD2, play critical roles in DNA interstrand cross-link (ICL) repair during S phase. Both are needed for recruitment of repair proteins, such as XPF, to sites of damage and repair of ICLs. However, the relationship between them in ICL repair and whether αIISp is involved in FANCD2's function in repair is unclear. The present studies show that, after ICL formation, FANCD2 disassociates from αIISp and localizes, before αIISp, at sites of damage in nuclear foci. αIISp and FANCD2 foci do not co-localize, in contrast to our previous finding that αIISp and the ICL repair protein, XPF, co-localize and follow a similar time course for formation. Knock-down of αIISp has no effect on monoubiquitination of FANCD2 (FANCD2-Ub) or its localization to chromatin or foci, though it leads to decreased ICL repair. Studies using cells from FA patients, defective in ICL repair and αIISp, have elucidated an important role for αIISp in the function of non-Ub FANCD2. In FA complementation group A (FA-A) cells, in which FANCD2 is not monoubiquitinated and does not form damage-induced foci, we demonstrate that restoration of αIISp levels to normal, by knocking down the protease μ-calpain, leads to formation of non-Ub FANCD2 foci after ICL damage. Since restoration of αIISp levels in FA-A cells restores DNA repair and cell survival, we propose that αIISp is critical for recruitment of non-Ub FANCD2 to sites of damage, which has an important role in the repair response and ICL repair.
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Affiliation(s)
- Pan Zhang
- Department of Pathology and Laboratory Medicine, Rutgers New Jersey Medical School, 185 South Orange Avenue, Newark, New Jersey, 07103, USA
| | - Deepa Sridharan
- Department of Pathology and Laboratory Medicine, Rutgers New Jersey Medical School, 185 South Orange Avenue, Newark, New Jersey, 07103, USA
| | - Muriel W Lambert
- Department of Pathology and Laboratory Medicine, Rutgers New Jersey Medical School, 185 South Orange Avenue, Newark, New Jersey, 07103, USA
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Liu Q, Ghosh P, Magpayo N, Testa M, Tang S, Gheorghiu L, Biggs P, Paganetti H, Efstathiou JA, Lu HM, Held KD, Willers H. Lung Cancer Cell Line Screen Links Fanconi Anemia/BRCA Pathway Defects to Increased Relative Biological Effectiveness of Proton Radiation. Int J Radiat Oncol Biol Phys 2015; 91:1081-9. [DOI: 10.1016/j.ijrobp.2014.12.046] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 12/20/2014] [Accepted: 12/24/2014] [Indexed: 12/25/2022]
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Lombardi AJ, Hoskins EE, Foglesong GD, Wikenheiser-Brokamp KA, Wiesmüller L, Hanenberg H, Andreassen PR, Jacobs AJ, Olson SB, Keeble WW, Hays LE, Wells SI. Acquisition of Relative Interstrand Crosslinker Resistance and PARP Inhibitor Sensitivity in Fanconi Anemia Head and Neck Cancers. Clin Cancer Res 2015; 21:1962-72. [PMID: 25609062 DOI: 10.1158/1078-0432.ccr-14-2616] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 12/28/2014] [Indexed: 12/20/2022]
Abstract
PURPOSE Fanconi anemia is an inherited disorder associated with a constitutional defect in the Fanconi anemia DNA repair machinery that is essential for resolution of DNA interstrand crosslinks. Individuals with Fanconi anemia are predisposed to formation of head and neck squamous cell carcinomas (HNSCC) at a young age. Prognosis is poor, partly due to patient intolerance of chemotherapy and radiation requiring dose reduction, which may lead to early recurrence of disease. EXPERIMENTAL DESIGN Using HNSCC cell lines derived from the tumors of patients with Fanconi anemia, and murine HNSCC cell lines derived from the tumors of wild-type and Fancc(-/-) mice, we sought to define Fanconi anemia-dependent chemosensitivity and DNA repair characteristics. We utilized DNA repair reporter assays to explore the preference of Fanconi anemia HNSCC cells for non-homologous end joining (NHEJ). RESULTS Surprisingly, interstrand crosslinker (ICL) sensitivity was not necessarily Fanconi anemia-dependent in human or murine cell systems. Our results suggest that the increased Ku-dependent NHEJ that is expected in Fanconi anemia cells did not mediate relative ICL resistance. ICL exposure resulted in increased DNA damage sensing and repair by PARP in Fanconi anemia-deficient cells. Moreover, human and murine Fanconi anemia HNSCC cells were sensitive to PARP inhibition, and sensitivity of human cells was attenuated by Fanconi anemia gene complementation. CONCLUSIONS The observed reliance upon PARP-mediated mechanisms reveals a means by which Fanconi anemia HNSCCs can acquire relative resistance to the ICL-based chemotherapy that is a foundation of HNSCC treatment, as well as a potential target for overcoming chemoresistance in the chemosensitive individual.
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Affiliation(s)
- Anne J Lombardi
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Elizabeth E Hoskins
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Grant D Foglesong
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Kathryn A Wikenheiser-Brokamp
- Pathology and Laboratory Medicine and Pulmonary Biology, Cincinnati Children's Hospital Medical Center and University of Cincinnati, Cincinnati, Ohio
| | - Lisa Wiesmüller
- Department of Obstetrics and Gynaecology, University of Ulm, Ulm, Germany
| | - Helmut Hanenberg
- Department of Pediatrics and Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana. Department of Otorhinolaryngology (ENT/HNO), Heinrich Heine University School of Medicine, Duesseldorf, Germany
| | - Paul R Andreassen
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Allison J Jacobs
- Department of Hematology/Oncology, Oregon Health & Science University Knight Cancer Institute, Portland, Oregon. Portland VA Medical Center, Portland, Oregon
| | - Susan B Olson
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, Oregon
| | - Winifred W Keeble
- Department of Hematology/Oncology, Oregon Health & Science University Knight Cancer Institute, Portland, Oregon. Portland VA Medical Center, Portland, Oregon
| | - Laura E Hays
- Department of Hematology/Oncology, Oregon Health & Science University Knight Cancer Institute, Portland, Oregon. Portland VA Medical Center, Portland, Oregon.
| | - Susanne I Wells
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
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Zheng Y, Zhou J, Tong Y. Gene signatures of drug resistance predict patient survival in colorectal cancer. THE PHARMACOGENOMICS JOURNAL 2014; 15:135-43. [PMID: 25179828 PMCID: PMC4381104 DOI: 10.1038/tpj.2014.45] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Revised: 05/12/2014] [Accepted: 06/25/2014] [Indexed: 01/05/2023]
Abstract
Different combinations of 5-fluorouracil (5-FU), oxaliplatin, irinotecan and other newly developed agents have been used to treat colorectal cancer. Despite the advent of new treatment regimens, the 5-year survival rate for metastatic colorectal cancer remains low (~10%). Knowing the drug sensitivity of a given tumor for a particular agent could significantly impact decision making and treatment planning. Biomarkers are proven to be successful in characterizing patients into different response groups. Using survival prediction analysis, we have identified three independent gene signatures, which are associated with sensitivity of colorectal cancer cells to 5-FU, oxaliplatin or irinotecan. On the basis of the three gene signatures, three score systems were developed to stratify patients from sensitive to resistance. These score systems exhibited robustness in stratify patients in two independent clinical studies. Patients with high scores in all three drugs exhibited the lowest survival.
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Affiliation(s)
- Y Zheng
- 1] Department of Medicine, Cedars-Sinai Medical Center, UCLA School of Medicine, Los Angeles, CA, USA [2] Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - J Zhou
- Division of Epidemiology and Biostatistics, College of Public Health, University of Arizona, Tucson, AZ, USA
| | - Y Tong
- 1] Department of Medicine, Cedars-Sinai Medical Center, UCLA School of Medicine, Los Angeles, CA, USA [2] Department of Pathology, Xinxiang Medical University, Xinxiang, China
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Reid JM, Buhrow SA, Gilbert JA, Jia L, Shoji M, Snyder JP, Ames MM. Mouse pharmacokinetics and metabolism of the curcumin analog, 4-piperidinone,3,5-bis[(2-fluorophenyl)methylene]-acetate(3E,5E) (EF-24; NSC 716993). Cancer Chemother Pharmacol 2014; 73:1137-46. [PMID: 24760417 DOI: 10.1007/s00280-014-2447-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 03/11/2014] [Indexed: 12/12/2022]
Abstract
PURPOSE Curcumin, a keto-enol constituent of turmeric, has in vitro and in vivo antitumor activity. However, in vivo potency is low due to poor oral absorption. The mono-carbonyl analog, 3,5-bis[(2-fluorophenyl)methylene]-4-piperidinone acetate (EF-24, NSC 716993), exhibited broad-spectrum activity in the NCI anticancer cell line screen and potent antiangiogenesis activity in a HUVEC cell migration assay. The purpose of this study was to characterize the preclinical pharmacology of EF-24 in mice. METHODS EF-24 plasma stability, protein binding, pharmacokinetics, and metabolism were characterized utilizing an LC/MS/MS assay. RESULTS An LC/MS/MS assay incorporated protein precipitation with methanol, reverse-phase HPLC separation under gradient elution using an aqueous methanol mobile phase containing 0.1 % formic acid, and positive electrospray ionization detection of the m/z 312 > 149 transition for EF-24. The assay was linear over the range 7.8-1,000 nM. Plasma protein binding was >98 % with preferential binding to albumin. EF-24 plasma disposition in mice after i.v. administration of a 10 mg/kg dose was best fit to a 3-compartment open model. The terminal elimination half-life and plasma clearance values were 73.6 min and 0.482 L/min/kg, respectively. EF-24 bioavailability was 60 and 35 % after oral and i.p. administration, respectively. NADPH-dependent metabolism of EF-24 loss in liver microsomal preparations yielded several metabolites consistent with EF-24 hydroxylation and reduction.
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Affiliation(s)
- Joel M Reid
- Department of Oncology, Division of Oncology Research, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA,
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Pfäffle HN, Wang M, Gheorghiu L, Ferraiolo N, Greninger P, Borgmann K, Settleman J, Benes CH, Sequist LV, Zou L, Willers H. EGFR-activating mutations correlate with a Fanconi anemia-like cellular phenotype that includes PARP inhibitor sensitivity. Cancer Res 2013; 73:6254-63. [PMID: 23966292 DOI: 10.1158/0008-5472.can-13-0044] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In patients with lung cancer whose tumors harbor activating mutations in the EGF receptor (EGFR), increased responses to platinum-based chemotherapies are seen compared with wild-type cancers. However, the mechanisms underlying this association have remained elusive. Here, we describe a cellular phenotype of cross-linker sensitivity in a subset of EGFR-mutant lung cancer cell lines that is reminiscent of the defects seen in cells impaired in the Fanconi anemia pathway, including a pronounced G2-M cell-cycle arrest and chromosomal radial formation. We identified a defect downstream of FANCD2 at the level of recruitment of FAN1 nuclease and DNA interstrand cross-link (ICL) unhooking. The effect of EGFR mutation was epistatic with FANCD2. Consistent with the known role of FANCD2 in promoting RAD51 foci formation and homologous recombination repair (HRR), EGFR-mutant cells also exhibited an impaired RAD51 foci response to ICLs, but not to DNA double-strand breaks. EGFR kinase inhibition affected RAD51 foci formation neither in EGFR-mutant nor wild-type cells. In contrast, EGFR depletion or overexpression of mutant EGFR in wild-type cells suppressed RAD51 foci, suggesting an EGFR kinase-independent regulation of DNA repair. Interestingly, EGFR-mutant cells treated with the PARP inhibitor olaparib also displayed decreased FAN1 foci induction, coupled with a putative block in a late HRR step. As a result, EGFR-mutant lung cancer cells exhibited olaparib sensitivity in vitro and in vivo. Our findings provide insight into the mechanisms of cisplatin and PARP inhibitor sensitivity of EGFR-mutant cells, yielding potential therapeutic opportunities for further treatment individualization in this genetically defined subset of lung cancer.
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Affiliation(s)
- Heike N Pfäffle
- Authors' Affiliations: Laboratory of Cellular & Molecular Radiation Oncology, Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Charlestown; Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston; and Center for Cancer Research, Massachusetts General Hospital Cancer Center, Charlestown, Massachusetts; Research Oncology, Genentech, Inc., South San Francisco, California; Department of Pharmaceutical Biology, Ludwig Maximilian University of Munich, Munich; and Center for Oncology, University Medical Center Hamburg-Eppendorf, University of Hamburg, Hamburg, Germany
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Abstract
INTRODUCTION Homologous recombination repair (HRR) is a critical pathway for the repair of DNA damage caused by cisplatin or poly-ADP ribose polymerase (PARP) inhibitors. HRR may be impaired by multiple mechanisms in cancer, which complicates assessing the functional HRR status in cells. Here, we monitored the ability of non-small-cell lung cancer (NSCLC) cells to form subnuclear foci of DNA repair proteins as a surrogate of HRR proficiency. METHODS We assessed clonogenic survival of 16 NSCLC cell lines in response to cisplatin, mitomycin C (MMC), and the PARP inhibitor olaparib. Thirteen tumor explants from patients with NSCLC were subjected to cisplatin ex vivo. Cells were assayed for foci of repair-associated proteins such as BRCA1, FANCD2, RAD51, and γ-H2AX. RESULTS Four cell lines (25%) showed an impaired RAD51 foci-forming ability in response to cisplatin. Impaired foci formation correlated with cellular sensitivity to cisplatin, MMC and olaparib. Foci responses complemented or superseded genomic information suggesting alterations in the ATM/ATR and FA/BRCA pathways. Because baseline foci in untreated cells did not predict drug sensitivity, we adapted an ex vivo biomarker assay to monitor damage-induced RAD51 foci in NSCLC explants from patients. Ex vivo cisplatin treatment of explants identified two tumors (15%) exhibiting compromised RAD51 foci induction. CONCLUSIONS A fraction of NSCLC harbors HRR defects that may sensitize the affected tumors to DNA-damaging agents including PARP inhibitors. We propose that foci-based functional biomarker assays represent a powerful tool for prospective determination of treatment sensitivity, but will require ex vivo techniques for induction of DNA damage to unmask the underlying HRR defect.
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Nagel R, Martens-de Kemp SR, Buijze M, Jacobs G, Braakhuis BJM, Brakenhoff RH. Treatment response of HPV-positive and HPV-negative head and neck squamous cell carcinoma cell lines. Oral Oncol 2013; 49:560-6. [PMID: 23578372 DOI: 10.1016/j.oraloncology.2013.03.446] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Revised: 03/14/2013] [Accepted: 03/16/2013] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Infection with the human papillomavirus (HPV) is an important risk factor for development of head and neck squamous cell carcinoma (HNSCC). Strikingly, HPV-positive HNSCCs have a more favorable prognosis than their HPV-negative counterparts. The current study was designed to explain this favorable prognosis of HPV-positive HNSCC. MATERIALS AND METHODS This was performed by investigating the response of four HPV-positive and fourteen HPV-negative HNSCC cell lines to cisplatin, cetuximab and radiation. RESULTS Analysis of the responses of this cell line panel indicated that HPV-positive cells are more resistant to cisplatin treatment than the HPV-negative HNSCCs, whereas the response to radiation and cetuximab did not differ. CONCLUSIONS The current study suggests that the favorable prognosis for patients with HPV-positive HNSCC does not seem to be related to an intrinsic sensitivity of these tumor cells to chemotherapy or radiation in vitro.
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Affiliation(s)
- Remco Nagel
- Department of Otolaryngology/Head-Neck Surgery, VU Medical Centre, PO Box 7057, 1007 MB Amsterdam, The Netherlands
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Mori R, Yoshida K, Tanahashi T, Yawata K, Kato J, Okumura N, Tsutani Y, Okada M, Oue N, Yasui W. Decreased FANCJ caused by 5FU contributes to the increased sensitivity to oxaliplatin in gastric cancer cells. Gastric Cancer 2013; 16:345-54. [PMID: 22968820 PMCID: PMC3713262 DOI: 10.1007/s10120-012-0191-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Accepted: 08/13/2012] [Indexed: 02/07/2023]
Abstract
BACKGROUND Oxaliplatin is effective against many types of cancer, and the combination of 5-fluorouracil (5FU) and oxaliplatin is synergistically effective against gastric cancer, as well as colon cancer. The FANCJ protein is one of the Fanconi anemia (FA) gene products, and its interaction with the tumor suppressor BRCA1 is required for DNA double-strand break (DSB) repair. FANCJ also functions in interstrand crosslinks (ICLs) repair by linking to mismatch repair protein complex MLH1-PMS2 (MutLα). While oxaliplatin causes ICLs, 5FU is considered to cause DSBs. Therefore, we investigated the importance of FANCJ in the synergistic effects of oxaliplatin and 5FU in MKN45 gastric cancer cells and the derived 5FU-resistant cell line, MKN45/F2R. METHODS MKN1, TMK1, MKN45, and MKN45/F2R (5FU-resistant) gastric cancer cells were treated with 5FU and/or oxaliplatin. The signaling pathway was evaluated by a western blotting analysis and reverse transcription polymerase chain reaction (RT-PCR). Drug resistance was evaluated by the 3-(4,5-dimethyl-2-tetrazolyl)-2,5-diphenyl-2H tetrazolium bromide (MTT) assay. RESULTS In MKN45 cells, the combination of 5FU and oxaliplatin had synergistic effects. DSBs appeared when the cells were treated with 5FU. FANCJ was down-regulated, and BRCA1 was induced in a dose- and time-dependent manner. MKN45 cells showed increased sensitivity to oxaliplatin when FANCJ was knocked down by short interfering (si) RNA. However, these findings were not observed in MKN45/F2R 5FU-resistant cells. CONCLUSION These results strongly suggest that the decrease in FANCJ caused by 5FU treatment leads to an increase in sensitivity to oxaliplatin, thus indicating that the FANCJ protein plays an important role in the synergism of the combination of 5FU and oxaliplatin.
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Affiliation(s)
- Ryutaro Mori
- Department of Surgical Oncology, Gifu University, Graduate School of Medicine, 1-1 Yanagido, Gifu, Gifu 501-1194 Japan
| | - Kazuhiro Yoshida
- Department of Surgical Oncology, Gifu University, Graduate School of Medicine, 1-1 Yanagido, Gifu, Gifu 501-1194 Japan
| | - Toshiyuki Tanahashi
- Department of Surgical Oncology, Gifu University, Graduate School of Medicine, 1-1 Yanagido, Gifu, Gifu 501-1194 Japan
| | - Kazunori Yawata
- Department of Surgical Oncology, Gifu University, Graduate School of Medicine, 1-1 Yanagido, Gifu, Gifu 501-1194 Japan
| | - Junko Kato
- Department of Surgical Oncology, Gifu University, Graduate School of Medicine, 1-1 Yanagido, Gifu, Gifu 501-1194 Japan
| | - Naoki Okumura
- Department of Surgical Oncology, Gifu University, Graduate School of Medicine, 1-1 Yanagido, Gifu, Gifu 501-1194 Japan
| | - Yasuhiro Tsutani
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Morihito Okada
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Naohide Oue
- Department of Molecular Pathology, Hiroshima University Graduate School of Medicine, Hiroshima, Japan
| | - Wataru Yasui
- Department of Molecular Pathology, Hiroshima University Graduate School of Medicine, Hiroshima, Japan
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FANCD2 but not FANCA promotes cellular resistance to type II topoisomerase poisons. Cancer Lett 2011; 305:86-93. [PMID: 21414716 DOI: 10.1016/j.canlet.2011.02.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2010] [Revised: 02/17/2011] [Accepted: 02/21/2011] [Indexed: 11/22/2022]
Abstract
Genetic or epigenetic inactivation of the pathway formed by the Fanconi Anemia (FA) and BRCA proteins occurs in several cancer types, including lung and breast cancer, rendering the affected tumors potentially hypersensitive to DNA crosslinking agents. However, the cytotoxicity of other commonly used cancer therapeutics in cells with FA/BRCA pathway defects remains to be defined. Building on earlier data that implicated BRCA1 and BRCA2 in the repair of DNA damage caused by the topoisomerase II poison etoposide, we studied the role of FANCD2 in mediating resistance to several topoisomerase II poisons. We establish that the loss of FANCD2 increases cell death in response to etoposide. FANCD2 promotes homologous recombination repair (HRR) and prevents DNA double-strand break formation and chromosomal aberrations in etoposide-treated cells. Strikingly, this function of FANCD2 is independent of FANCD2 foci formation and of FANCA, which is a member of the FA core complex upstream of FANCD2 mono-ubiquitination. Thus, FANCD2 appears to promote HRR in a mono-ubiquitination-independent manner in conjunction with BRCA1/2. These data add to an emerging body of evidence indicating that the FA pathway is not linear and that several protein subcomplexes with different functions exist. Our findings are potentially relevant for predicting the sensitivity of lung and breast cancers to etoposide and doxorubicin, respectively.
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Baek SJ, Whitlock NC. Molecular Targets of Resveratrol in Carcinogenesis. EVIDENCE-BASED ANTICANCER MATERIA MEDICA 2011. [DOI: 10.1007/978-94-007-0526-5_15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Gammon L, Biddle A, Fazil B, Harper L, Mackenzie IC. Stem cell characteristics of cell sub-populations in cell lines derived from head and neck cancers of Fanconi anemia patients. J Oral Pathol Med 2010; 40:143-52. [PMID: 21138479 DOI: 10.1111/j.1600-0714.2010.00972.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Increasing evidence indicates that cancer growth is driven by a sub-population of self-renewing cancer stem cells (CSCs) and that clinical problems of tumor recurrence after therapy may be related to differential resistance of CSCs to therapeutic elimination. Fanconi anemia (FA) is an autosomal recessive disorder associated with deficiencies of DNA repair and a greatly enhanced risk of hematopoietic malignancies and of head and neck squamous cell carcinoma (HNSCC). In FA patients, lack of DNA repair complicates therapies acting through DNA damage and alternative approaches, such as targeting signaling pathways associated with stem cell maintenance, might be of particular benefit. To assess effects of FA gene defects on the expression of stem cell properties, CSC patterns in cell lines derived from FA-related and sporadic HNSCC were compared. As for sporadic cell lines, FA cell lines showed colony morphologies associated with stem cell patterns. In all cell lines, cells with strong staining for CD44 (CD44(high) ) showed lower rates of apoptosis and a greater DNA damage induced block in the G2 phase of the cell cycle than CD44(low) cells. Mitomycin C, and UVB increased overall rates of apoptosis for both sporadic and FA cell lines, although FA cells tended to be more sensitive to apoptotic induction. Fluorescence activated cell sorting, immunohistochemistry, and QPCR indicated distinctly different patterns of gene expression of CD44(high) and CD44(low) cells in both sporadic and FA cell lines.
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Affiliation(s)
- Luke Gammon
- Blizard Institute of Cell and Molecular Science, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
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