51
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Exposure–response analysis to inform the optimal dose of veliparib in combination with carboplatin and paclitaxel in BRCA-mutated advanced breast cancer patients. Cancer Chemother Pharmacol 2019; 84:977-986. [DOI: 10.1007/s00280-019-03930-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 08/12/2019] [Indexed: 01/06/2023]
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52
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Wu H, Li Y, Hou Q, Zhou R, Li Z, Wu S, Yu J, Jiang M. Single‑cell intratumoral stemness analysis reveals the involvement of cell cycle and DNA damage repair in two different types of esophageal cancer. Oncol Rep 2019; 41:3201-3208. [PMID: 31002369 PMCID: PMC6489016 DOI: 10.3892/or.2019.7117] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 04/05/2019] [Indexed: 12/14/2022] Open
Abstract
Intratumoral heterogeneity, particularly the potential cancer stemness of single cancer cells, has not yet been fully elucidated in human esophageal cancer. Single‑cell transcriptome sequencing of two types of esophageal adenocarcinoma (EAC) and two types of esophageal squamous cell carcinoma (ESCC) tissues was performed, and the intratumoral cancer stemness of the types of esophageal cancer were characterized at the single‑cell level in the present study. By comparing the transcriptomic profiles of single cancer cells with high and low stemness in individual patients, it was revealed that the overexpression of cell cycle‑associated genes in EAC cells was highly correlated with stemness, whereas overexpression of genes involved in the signaling pathways of DNA replication and DNA damage repair was significantly correlated with stemness in ESCC. High expression of these stemness‑associated genes was correlated with poor prognosis of patients. Additionally, poly [ADP‑ribose] polymerase(PARP)4 was identified as a novel cancer stemness‑associated gene in ESCC and its association with survival was validated in a cohort of 121 patients with ESCC. These findings have profound potential implications for the use of cell cycle inhibitors in EAC and PARP inhibitors in ESCC, which may provide novel mechanistic insights into the plasticity of esophageal cancer.
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Affiliation(s)
- Hongjin Wu
- Cancer Research Institute, Hangzhou Cancer Hospital, Hangzhou, Zhejiang 320000, P.R. China
| | - Ying Li
- Cancer Research Institute, Hangzhou Cancer Hospital, Hangzhou, Zhejiang 320000, P.R. China
| | - Qiang Hou
- Cancer Research Institute, Hangzhou Cancer Hospital, Hangzhou, Zhejiang 320000, P.R. China
| | - Rongjin Zhou
- Cancer Research Institute, Hangzhou Cancer Hospital, Hangzhou, Zhejiang 320000, P.R. China
| | - Ziwei Li
- Cancer Research Institute, Hangzhou Cancer Hospital, Hangzhou, Zhejiang 320000, P.R. China
| | - Shixiu Wu
- Cancer Research Institute, Hangzhou Cancer Hospital, Hangzhou, Zhejiang 320000, P.R. China
| | - Juehua Yu
- Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Mingfeng Jiang
- Cancer Research Institute, Hangzhou Cancer Hospital, Hangzhou, Zhejiang 320000, P.R. China
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53
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Chen S, Zhang Z, Zhang J. Emodin enhances antitumor effect of paclitaxel on human non-small-cell lung cancer cells in vitro and in vivo. DRUG DESIGN DEVELOPMENT AND THERAPY 2019; 13:1145-1153. [PMID: 31114158 PMCID: PMC6489594 DOI: 10.2147/dddt.s196319] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 03/04/2019] [Indexed: 01/25/2023]
Abstract
Background: Non-small-cell lung cancer (NSCLC) was known as the most malignant tumor. Paclitaxel (PTX) is the effective drug used for the treatment of NSCLC; however, it also exhibits severe side effects. Emodin could induce apoptosis of NSCLC cells and serve as a potential cancer therapeutic agent. However, the effects of combination of emodin with PTX on NSCLC remain unclear. Thus, this study aimed to investigate the effects of emodin in combination with PTX on A549 cells. Materials and methods: The effects of combination treatment on the proliferation, apoptosis and invasion of NSCLC cells were evaluated by CCK-8, flow cytometric and TUNEL assays, respectively. In addition, Western blotting was used to detect the expressions of Bax, Bcl-2, active caspase 3, p-Akt and ERK in cells. Results: Combination of emodin with PTX synergistically inhibited the proliferation of A549 cells in vitro. In addition, we found that emodin significantly enhanced PTX-induced apoptosis in A549 cells via increasing the expressions of Bax and active caspase 3 and decreasing the levels of Bcl-2, p-Akt and p-ERK. Moreover, emodin markedly enhanced antitumor effect of PTX on A549 xenograft without significant side effects in vivo. Conclusion: Our findings indicated that emodin could significantly enhance antitumor effect of PTX in vitro and in vivo. Therefore, the combination of emodin with PTX may serve as a potential strategy for the treatment of patients with NSCLC.
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Affiliation(s)
- Shuifang Chen
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, People's Republic of China
| | - Zeying Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, People's Republic of China
| | - Jianli Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, People's Republic of China
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54
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Gentles L, Goranov B, Matheson E, Herriott A, Kaufmann A, Hall S, Mukhopadhyay A, Drew Y, Curtin NJ, O'Donnell RL. Exploring the Frequency of Homologous Recombination DNA Repair Dysfunction in Multiple Cancer Types. Cancers (Basel) 2019; 11:cancers11030354. [PMID: 30871186 PMCID: PMC6468835 DOI: 10.3390/cancers11030354] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 01/05/2023] Open
Abstract
Dysfunctional homologous recombination DNA repair (HRR), frequently due to BRCA mutations, is a determinant of sensitivity to platinum chemotherapy and poly(ADP-ribose) polymerase inhibitors (PARPi). In cultures of ovarian cancer cells, we have previously shown that HRR function, based upon RAD51 foci quantification, correlated with growth inhibition ex vivo induced by rucaparib (a PARPi) and 12-month survival following platinum chemotherapy. The aim of this study was to determine the feasibility of measuring HRR dysfunction (HRD) in other tumours, in order to estimate the frequency and hence wider potential of PARPi. A total of 24 cultures were established from ascites sampled from 27 patients with colorectal, upper gastrointestinal, pancreatic, hepatobiliary, breast, mesothelioma, and non-epithelial ovarian cancers; 8 were HRD. Cell growth following continuous exposure to 10 μM of rucaparib was lower in HRD cultures compared to HRR-competent (HRC) cultures. Overall survival in the 10 patients who received platinum-based therapy was marginally higher in the 3 with HRD ascites (median overall survival of 17 months, range 10 to 90) compared to the 7 patients with HRC ascites (nine months, range 1 to 55). HRR functional assessment in primary cultures, from several tumour types, revealed that a third are HRD, justifying the further exploration of PARPi therapy in a broader range of tumours.
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Affiliation(s)
- Lucy Gentles
- Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK.
| | - Bojidar Goranov
- Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK.
- Northern Centre for Cancer Care, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Freeman Hospital, Newcastle upon Tyne NE7 7DN, UK.
| | - Elizabeth Matheson
- Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK.
| | - Ashleigh Herriott
- Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK.
| | - Angelika Kaufmann
- Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK.
- Northern Gynecological Oncology Centre, Queen Elizabeth Hospital, Sherriff Hill, Gateshead NE9 6SX, UK.
| | - Sally Hall
- Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK.
- Northern Centre for Cancer Care, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Freeman Hospital, Newcastle upon Tyne NE7 7DN, UK.
| | - Asima Mukhopadhyay
- Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK.
- Tata Medical Center, 14 MAR (E-W), New Town, Rajarhat, Kolkata 700 160, India.
| | - Yvette Drew
- Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK.
- Northern Centre for Cancer Care, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Freeman Hospital, Newcastle upon Tyne NE7 7DN, UK.
| | - Nicola J Curtin
- Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK.
| | - Rachel L O'Donnell
- Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK. rachel.o'
- Northern Gynecological Oncology Centre, Queen Elizabeth Hospital, Sherriff Hill, Gateshead NE9 6SX, UK. rachel.o'
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55
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Kolaczkowski L, Barkalow J, Barnes DM, Haight A, Pritts W, Schellinger A. Synthesis of (R)-Boc-2-methylproline via a Memory of Chirality Cyclization. Application to the Synthesis of Veliparib, a Poly(ADP-ribose) Polymerase Inhibitor. J Org Chem 2019; 84:4837-4845. [DOI: 10.1021/acs.joc.8b02866] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lawrence Kolaczkowski
- Process Research & Development, AbbVie, Inc., North Chicago, Illinois 60064, United States
| | - Jufang Barkalow
- Process Research & Development, AbbVie, Inc., North Chicago, Illinois 60064, United States
| | - David M. Barnes
- Process Research & Development, AbbVie, Inc., North Chicago, Illinois 60064, United States
| | - Anthony Haight
- Process Research & Development, AbbVie, Inc., North Chicago, Illinois 60064, United States
| | - Wayne Pritts
- Process Analytical Chemistry, AbbVie, Inc., North Chicago, Illinois 60064, United States
| | - Adam Schellinger
- Process Analytical Chemistry, AbbVie, Inc., North Chicago, Illinois 60064, United States
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56
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Dong Q, Du Y, Li H, Liu C, Wei Y, Chen MK, Zhao X, Chu YY, Qiu Y, Qin L, Yamaguchi H, Hung MC. EGFR and c-MET Cooperate to Enhance Resistance to PARP Inhibitors in Hepatocellular Carcinoma. Cancer Res 2018; 79:819-829. [PMID: 30573522 DOI: 10.1158/0008-5472.can-18-1273] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 10/12/2018] [Accepted: 12/14/2018] [Indexed: 12/14/2022]
Abstract
PARP1 inhibitors (PARPi) are currently used in the clinic for the treatment of ovarian and breast cancers, yet their therapeutic efficacy against hepatocellular carcinoma (HCC) has been disappointing. To ensure therapeutic efficacy of PARPi against HCC, a disease often diagnosed at intermediate to advanced stages with no effective treatment options, it is critical to identify not only biomarkers to predict PARPi resistance but also rational treatments to overcome this. Here, we report that a heterodimer of EGFR and MET interacts with and phosphorylates Y907 of PARP1 in the nucleus, which contributes to PARPi resistance. Inhibition of both EGFR and MET sensitized HCC cells to PARPi, and both EGFR and MET are known to be overexpressed in HCC. This report provides an explanation for the poor efficacy of PARPi against HCC and suggests combinatorial treatment consisting of EGFR, MET, and PARP inhibitors may be an effective therapeutic strategy in HCC. SIGNIFICANCE: Regulation of PARP by the c-MET and EGFR heterodimer suggests a potentially effective combination therapy to sensitize HCC to PARPi.
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MESH Headings
- Animals
- Apoptosis
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Carcinoma, Hepatocellular/drug therapy
- Carcinoma, Hepatocellular/metabolism
- Carcinoma, Hepatocellular/pathology
- Cell Proliferation
- Drug Resistance, Neoplasm
- ErbB Receptors/genetics
- ErbB Receptors/metabolism
- Gene Expression Regulation, Neoplastic
- Humans
- Liver Neoplasms/drug therapy
- Liver Neoplasms/metabolism
- Liver Neoplasms/pathology
- Male
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Poly (ADP-Ribose) Polymerase-1/antagonists & inhibitors
- Poly(ADP-ribose) Polymerase Inhibitors/pharmacology
- Proto-Oncogene Proteins c-met/genetics
- Proto-Oncogene Proteins c-met/metabolism
- Tumor Cells, Cultured
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Qiongzhu Dong
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
- Department of General Surgery, Huashan Hospital & Cancer Metastasis Institute & Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Yi Du
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Hui Li
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
- Liver Surgery Department, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chunxiao Liu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yongkun Wei
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Mei-Kuang Chen
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
- Graduate School of Biomedical Sciences, The University of Texas Health Science Center at Houston, Houston, Texas
| | - Xixi Zhao
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yu-Yi Chu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yufan Qiu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Lunxiu Qin
- Department of General Surgery, Huashan Hospital & Cancer Metastasis Institute & Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Hirohito Yamaguchi
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
| | - Mien-Chie Hung
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
- Graduate School of Biomedical Sciences, The University of Texas Health Science Center at Houston, Houston, Texas
- Graduate Institute of Biomedical Sciences and Center for Molecular Medicine, China Medical University, Taichung, Taiwan
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57
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Hopkins TA, Ainsworth WB, Ellis PA, Donawho CK, DiGiammarino EL, Panchal SC, Abraham VC, Algire MA, Shi Y, Olson AM, Johnson EF, Wilsbacher JL, Maag D. PARP1 Trapping by PARP Inhibitors Drives Cytotoxicity in Both Cancer Cells and Healthy Bone Marrow. Mol Cancer Res 2018; 17:409-419. [PMID: 30429212 DOI: 10.1158/1541-7786.mcr-18-0138] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 08/31/2018] [Accepted: 10/23/2018] [Indexed: 11/16/2022]
Abstract
PARP inhibitors have recently been approved as monotherapies for the treatment of recurrent ovarian cancer and metastatic BRCA-associated breast cancer, and ongoing studies are exploring additional indications and combinations with other agents. PARP inhibitors trap PARP onto damaged chromatin when combined with temozolomide and methyl methanesulfonate, but the clinical relevance of these findings remains unknown. PARP trapping has thus far been undetectable in cancer cells treated with PARP inhibitors alone. Here, we evaluate the contribution of PARP trapping to the tolerability and efficacy of PARP inhibitors in the monotherapy setting. We developed a novel implementation of the proximity ligation assay to detect chromatin-trapped PARP1 at single-cell resolution with higher sensitivity and throughput than previously reported methods. We further demonstrate that the PARP inhibitor-induced trapping appears to drive single-agent cytotoxicity in healthy human bone marrow, indicating that the toxicity of trapped PARP complexes is not restricted to cancer cells with homologous recombination deficiency. Finally, we show that PARP inhibitors with dramatically different trapping potencies exhibit comparable tumor growth inhibition at MTDs in a xenograft model of BRCA1-mutant triple-negative breast cancer. These results are consistent with emerging clinical data and suggest that the inverse relationship between trapping potency and tolerability may limit the potential therapeutic advantage of potent trapping activity. IMPLICATIONS: PARP trapping contributes to single-agent cytotoxicity of PARP inhibitors in both cancer cells and healthy bone marrow, and the therapeutic advantage of potent trapping activity appears to be limited.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Yan Shi
- AbbVie, Inc., North Chicago, Illinois
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58
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Shukla ND, Salahudeen AA, Taylor GA, Ramalingam SS, Vokes EE, Goss GD, Decker RH, Kelly K, Scagliotti GV, Mok TS, Wakelee HA. Update on International Cooperative Groups Studies in Thoracic Malignancies: The Emergence of Immunotherapy. Clin Lung Cancer 2018; 19:377-386. [PMID: 29653819 DOI: 10.1016/j.cllc.2018.03.004] [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: 10/30/2017] [Revised: 02/26/2018] [Accepted: 03/10/2018] [Indexed: 11/29/2022]
Abstract
Cancer cooperative groups have historically played a critical role in the advancement of non-small-cell lung cancer therapy. Representatives from cooperative groups worldwide convene at the International Lung Cancer Congress annually. The International Lung Cancer Congress had its 17th anniversary in the summer of 2016. The present review highlights the thoracic malignancy studies discussed by presenters. The included studies are merely a sample of the trials of thoracic malignancies ongoing globally.
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Affiliation(s)
- Navika D Shukla
- Stanford University School of Medicine, Li Ka Shing Center, Stanford, CA
| | - Ameen A Salahudeen
- Division of Hematology, Department of Medicine, Stanford University, Stanford, CA
| | | | - Suresh S Ramalingam
- Hematology and Medical Oncology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA
| | - Everett E Vokes
- Department of Medicine, University of Chicago School of Medicine, Chicago, IL
| | - Glenwood D Goss
- Division of Oncology, Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Roy H Decker
- Yale University School of Medicine, New Haven, CT
| | - Karen Kelly
- Department of Internal Medicine, University of California-Davis Comprehensive Cancer Center, Sacramento, CA
| | - Giorgio V Scagliotti
- Medical Oncology, Department of Oncology, University of Turin, Azienda Ospedaliera Universitaria San Luigi, Orbassano, Turin, Italy
| | - Tony S Mok
- Department of Clinical Oncology, Chinese Medical University of Hong Kong Shatin, New Territories, Hong Kong
| | - Heather A Wakelee
- Division of Oncology, Department of Medicine, Stanford University, Stanford, CA.
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59
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Tsironis G, Ziogas DC, Kyriazoglou A, Lykka M, Koutsoukos K, Bamias A, Dimopoulos MA. Breakthroughs in the treatment of advanced squamous-cell NSCLC: not the neglected sibling anymore? ANNALS OF TRANSLATIONAL MEDICINE 2018; 6:143. [PMID: 29862232 DOI: 10.21037/atm.2018.02.18] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
During the last years, translational research has contributed in many advances in the treatment of non-small cell lung cancer (NSCLC) discovering genetic alternations or recognizing the immuno-escape and neo-angiogenesis of lung cancer. Although the majority of these advances took place in the non-squamous histological subtype, therapeutic options for patients diagnosed with advanced squamous cell lung cancer (SqCLC) have been also enriched significantly with the addition of nab-paclitaxel in the conventional chemotherapy; the introduction of necitumumab, afatinib and erlotinib in the inhibition of epidermal growth factor receptor (EGFR) axis and of ramucirumab in the inhibition of VEGF-induced angiogenesis and last with the approvals of nivolumab, pembrolizumab atezolizumab and durvalumab soon in the promising field of immunotherapies. Agents targeted various other pathways including FGFR, IGF-1, PI3K, CDK4/6, MET and PARP inhibitors are under investigation in order to open new prospects in the treatment of SqCLC. In this review, we present all published data that led to recent approvals for the treatment of advanced SqCLC and all ongoing clinical trials that keep searching for new molecular targets following a more-personalized approach.
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Affiliation(s)
- Georgios Tsironis
- Department of Clinical Therapeutics, Alexandra General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Dimitrios C Ziogas
- Department of Clinical Therapeutics, Alexandra General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Anastasios Kyriazoglou
- Department of Clinical Therapeutics, Alexandra General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Marita Lykka
- Department of Clinical Therapeutics, Alexandra General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Konstantinos Koutsoukos
- Department of Clinical Therapeutics, Alexandra General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Aristotelis Bamias
- Department of Clinical Therapeutics, Alexandra General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Meletios-Athanasios Dimopoulos
- Department of Clinical Therapeutics, Alexandra General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
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60
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Sizemore ST, Mohammad R, Sizemore GM, Nowsheen S, Yu H, Ostrowski MC, Chakravarti A, Xia F. Synthetic Lethality of PARP Inhibition and Ionizing Radiation is p53-dependent. Mol Cancer Res 2018; 16:1092-1102. [PMID: 29592899 DOI: 10.1158/1541-7786.mcr-18-0106] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 03/09/2018] [Accepted: 03/14/2018] [Indexed: 12/20/2022]
Abstract
PARP inhibitors (PARPi) are potentially effective therapeutic agents capable of inducing synthetic lethality in tumors with deficiencies in homologous recombination (HR)-mediated DNA repair such as those carrying BRCA1 mutations. However, BRCA mutations are rare, the majority of tumors are proficient in HR repair, and thus most tumors are resistant to PARPi. Previously, we observed that ionizing radiation (IR) initiates cytoplasmic translocation of BRCA1 leading to suppression of HR-mediated DNA repair and induction of synthetic PARPi lethality in wild-type BRCA1 and HR-proficient tumor cells. The tumor suppressor p53 was identified as a key factor that regulates DNA damage-induced BRCA1 cytoplasmic sequestration following IR. However, the role of p53 in IR-induced PARPi sensitization remains unclear. This study elucidates the role of p53 in IR-induced PARPi cytotoxicity in HR-proficient cancer cells and suggests p53 status may help define a patient population that might benefit from this treatment strategy. Sensitization to PARPi following IR was determined in vitro and in vivo utilizing human breast and glioma tumor cells carrying wild-type BRCA1 and p53, and in associated cells in which p53 function was modified by knockdown or mutation. In breast and glioma cells with proficient HR repair, IR-induced BRCA1 cytoplasmic sequestration, HR repair inhibition, and subsequent PARPi sensitization in vitro and in vivo was dependent upon functional p53.Implications: Implications: p53 status determines PARP inhibitor sensitization by ionizing radiation in multiple BRCA1 and HR-proficient tumor types and may predict which patients are most likely to benefit from combination therapy. Mol Cancer Res; 16(7); 1092-102. ©2018 AACR.
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Affiliation(s)
- Steven T Sizemore
- Department of Radiation Oncology, The Ohio State University College of Medicine, Columbus, Ohio
| | - Rahman Mohammad
- Department of Internal Medicine, Virginia Commonwealth University, Richmond, Virginia
| | - Gina M Sizemore
- Department of Radiation Oncology, The Ohio State University College of Medicine, Columbus, Ohio
| | - Somaira Nowsheen
- Medical Scientist Training Program, Mayo Clinic, Rochester, Minnesota
| | - Hao Yu
- Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Michael C Ostrowski
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, South Carolina
| | - Arnab Chakravarti
- Department of Radiation Oncology, The Ohio State University College of Medicine, Columbus, Ohio
| | - Fen Xia
- Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, Arkansas.
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61
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LoCoco PM, Risinger AL, Smith HR, Chavera TS, Berg KA, Clarke WP. Pharmacological augmentation of nicotinamide phosphoribosyltransferase (NAMPT) protects against paclitaxel-induced peripheral neuropathy. eLife 2017; 6:e29626. [PMID: 29125463 PMCID: PMC5701795 DOI: 10.7554/elife.29626] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 11/03/2017] [Indexed: 01/03/2023] Open
Abstract
Chemotherapy-induced peripheral neuropathy (CIPN) arises from collateral damage to peripheral afferent sensory neurons by anticancer pharmacotherapy, leading to debilitating neuropathic pain. No effective treatment for CIPN exists, short of dose-reduction which worsens cancer prognosis. Here, we report that stimulation of nicotinamide phosphoribosyltransferase (NAMPT) produced robust neuroprotection in an aggressive CIPN model utilizing the frontline anticancer drug, paclitaxel (PTX). Daily treatment of rats with the first-in-class NAMPT stimulator, P7C3-A20, prevented behavioral and histologic indicators of peripheral neuropathy, stimulated tissue NAD recovery, improved general health, and abolished attrition produced by a near maximum-tolerated dose of PTX. Inhibition of NAMPT blocked P7C3-A20-mediated neuroprotection, whereas supplementation with the NAMPT substrate, nicotinamide, potentiated a subthreshold dose of P7C3-A20 to full efficacy. Importantly, P7C3-A20 blocked PTX-induced allodynia in tumored mice without reducing antitumoral efficacy. These findings identify enhancement of NAMPT activity as a promising new therapeutic strategy to protect against anticancer drug-induced peripheral neurotoxicity.
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Affiliation(s)
- Peter M LoCoco
- Department of PharmacologyUniversity of Texas Health Science Center at San AntonioSan AntonioUnited States
| | - April L Risinger
- Department of PharmacologyUniversity of Texas Health Science Center at San AntonioSan AntonioUnited States
| | - Hudson R Smith
- Department of PharmacologyUniversity of Texas Health Science Center at San AntonioSan AntonioUnited States
| | - Teresa S Chavera
- Department of PharmacologyUniversity of Texas Health Science Center at San AntonioSan AntonioUnited States
| | - Kelly A Berg
- Department of PharmacologyUniversity of Texas Health Science Center at San AntonioSan AntonioUnited States
| | - William P Clarke
- Department of PharmacologyUniversity of Texas Health Science Center at San AntonioSan AntonioUnited States
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62
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Zhou JX, Feng LJ, Zhang X. Risk of severe hematologic toxicities in cancer patients treated with PARP inhibitors: a meta-analysis of randomized controlled trials. Drug Des Devel Ther 2017; 11:3009-3017. [PMID: 29075104 PMCID: PMC5648323 DOI: 10.2147/dddt.s147726] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Purpose Hematologic toxicities, including neutropenia, thrombocytopenia, and anemia, are major adverse effects of PARP inhibitors (PARPis), but the incidence rate and overall risk has not been systematically studied. Therefore, we conducted a meta-analysis of published clinical trials to investigate the incidence and relative risks (RRs) of severe (high-grade) hematologic events in cancer patients treated with PARPis. Methods PubMed, Embase, and oncology conference proceedings were searched for relevant studies. Eligible studies were Phase II and III randomized controlled trials (RCTs) of PARPis in cancer patients with adequate safety data on hematologic toxicities. The summary incidence, RRs, and 95% confidence intervals (CIs) were calculated. Results A total of 2,479 patients from 12 RCTs revealed that the incidence of PARPi-associated severe hematologic toxicities was, respectively: neutropenia: 32.9% (95% CI, 20.5%–48.3%); thrombocytopenia: 15.9% (95% CI, 9.5%–25.4%), and anemia: 9.1% (95% CI, 5.1%–15.7%). Olaparib was associated with an increased risk of severe neutropenia. Veliparib was associated with an increased risk of severe neutropenia and thrombocytopenia. Niraparib was associated with an increased risk of severe thrombocytopenia, anemia, and neutropenia. When stratified by combination therapy, significantly increased risk of hematologic toxicities was observed for patients treated with PARPis monotherapy and PARPis combined with single-agent chemotherapy. Conclusion Treatment with PARPis olaparib, veliparib, and niraparib is associated with a significant increase in the risk of hematologic toxicities in cancer patients, and frequent clinical monitoring should be emphasized when managing these PARPis.
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Affiliation(s)
- Jian Xin Zhou
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing
| | - Li Jin Feng
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University, School of Medicine, Shanghai
| | - Xi Zhang
- Department of Radiation Oncology, Affiliated Hospital of Hebei University, Baoding, China
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Nishio S, Takekuma M, Takeuchi S, Kawano K, Tsuda N, Tasaki K, Takahashi N, Abe M, Tanaka A, Nagasawa T, Shoji T, Xiong H, Nuthalapati S, Leahy T, Hashiba H, Kiriyama T, Komarnitsky P, Hirashima Y, Ushijima K. Phase 1 study of veliparib with carboplatin and weekly paclitaxel in Japanese patients with newly diagnosed ovarian cancer. Cancer Sci 2017; 108:2213-2220. [PMID: 28837250 PMCID: PMC5665762 DOI: 10.1111/cas.13381] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 07/31/2017] [Accepted: 08/09/2017] [Indexed: 01/06/2023] Open
Abstract
This phase 1, open-label, dose-escalation study was conducted to determine the safety, tolerability, pharmacokinetics and preliminary efficacy of veliparib with carboplatin and weekly paclitaxel in Japanese women with newly diagnosed, advanced ovarian cancer. Patients received veliparib at 100 or 150 mg b.i.d. on days 1-21 with carboplatin (area under the concentration-time curve 6 mg/mL•min) on day 1 and paclitaxel 80 mg/m2 on days 1, 8 and 15 every 3 weeks for up to 6 21-day cycles. Dose escalation followed a 3 + 3 design to determine dose-limiting toxicities, maximum tolerated dose and the recommended phase 2 dose. Nine patients (median age 62 [range 27-72] years) received a median of 5 (range 3-6) cycles of treatment (3 at 100 mg, 6 at 150 mg). There were no dose-limiting toxicities. The most common adverse events of any grade were neutropenia (100%), alopecia (89%), peripheral sensory neuropathy (78%), and anemia, nausea and malaise (67% each). Grade 3 or 4 adverse events were associated with myelosuppression. Pharmacokinetics of carboplatin/paclitaxel were similar at both veliparib doses. Response, assessed in five patients, was partial in four and complete in one (objective response rate 100%). The response could not be assessed in four patients who had no measurable disease at baseline. The recommended phase 2 dose of veliparib, when combined with carboplatin/paclitaxel, is 150 mg b.i.d. Findings from this phase 1 trial demonstrate the tolerability and safety of veliparib with carboplatin/paclitaxel, a regimen with potential clinical benefit in Japanese women with ovarian cancer.
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Affiliation(s)
- Shin Nishio
- Department of Obstetrics and Gynecology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Munetaka Takekuma
- Division of Gynecology, Shizuoka Cancer Center, Nagaizumi, Shizuoka, Japan
| | - Satoshi Takeuchi
- Department of Obstetrics and Gynecology, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
| | - Kouichirou Kawano
- Department of Obstetrics and Gynecology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Naotake Tsuda
- Department of Obstetrics and Gynecology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Kazuto Tasaki
- Department of Obstetrics and Gynecology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Nobutaka Takahashi
- Division of Gynecology, Shizuoka Cancer Center, Nagaizumi, Shizuoka, Japan
| | - Masakazu Abe
- Division of Gynecology, Shizuoka Cancer Center, Nagaizumi, Shizuoka, Japan
| | - Aki Tanaka
- Division of Gynecology, Shizuoka Cancer Center, Nagaizumi, Shizuoka, Japan
| | - Takayuki Nagasawa
- Department of Obstetrics and Gynecology, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
| | - Tadahiro Shoji
- Department of Obstetrics and Gynecology, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
| | - Hao Xiong
- AbbVie, North Chicago, Illinois, USA
| | | | | | | | | | | | - Yasuyuki Hirashima
- Division of Gynecology, Shizuoka Cancer Center, Nagaizumi, Shizuoka, Japan
| | - Kimio Ushijima
- Department of Obstetrics and Gynecology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
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64
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Understanding Resistance Mechanisms and Expanding the Therapeutic Utility of PARP Inhibitors. Cancers (Basel) 2017; 9:cancers9080109. [PMID: 28829366 PMCID: PMC5575612 DOI: 10.3390/cancers9080109] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 08/18/2017] [Accepted: 08/18/2017] [Indexed: 11/20/2022] Open
Abstract
Poly-(ADP-ribose) polymerase (PARP) inhibitors act through synthetic lethality in cells with defects in homologous recombination (HR) DNA repair caused by molecular aberrations such as BRCA mutations, and is approved for treatment in ovarian cancer, with promising clinical activity against other HR defective tumors including breast and prostate cancers. Three PARP inhibitors have been FDA approved, while another two have shown promising activity and are in late stage development. Nonetheless, both primary and secondary resistance to PARP inhibition have led to treatment failure, and the development of predictive biomarkers and the ability to identify and overcome mechanisms of resistance is vital for optimization of its clinical utility. Additionally, there has been evidence that PARP inhibition may have a therapeutic role beyond HR deficient tumors which warrants further investigation, both as single agent and in combination with other therapeutic modalities like cytotoxic chemotherapy, radiation, targeted therapy and immunotherapy. With new strategies to overcome resistance and expand its therapeutic utility, PARP inhibitors are likely to become a staple in our armamentarium of drugs in cancer therapeutics.
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65
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Smoking History Predicts Sensitivity to PARP Inhibitor Veliparib in Patients with Advanced Non–Small Cell Lung Cancer. J Thorac Oncol 2017; 12:1098-1108. [DOI: 10.1016/j.jtho.2017.04.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 04/05/2017] [Accepted: 04/11/2017] [Indexed: 11/22/2022]
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Shum E, Wang F, Kim S, Perez-Soler R, Cheng H. Investigational therapies for squamous cell lung cancer: from animal studies to phase II trials. Expert Opin Investig Drugs 2017; 26:415-426. [PMID: 28277882 DOI: 10.1080/13543784.2017.1302425] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION It remains challenging to treat squamous cell lung cancer (SCC) with limited therapeutic options. However, recent breakthroughs in targeted therapies and immunotherapies have shed some light on the management of this deadly disease. Areas covered: The article first reviews the current treatment options for advanced SCC, especially recent FDA approved molecular agents (afatinib, ramucirumab and necitumumab) and immunotherapies (nivolumab, pembrolizumab and atezolimumab). We then provide an overview on investigational therapies with data ranging from preclinical to phase II studies, focusing on new cytotoxic agents, emerging molecularly targeted agents (including a PARP inhibitor for Homologous Recombinant Deficiency positive SCC) and novel immunotherapeutic strategies. Expert opinion summary: Identification of potential therapeutic targets, development of novel clinical trials and the rapid approvals of immune checkpoint inhibitors have shifted the management paradigm for squamous cell lung cancer. On the other hand, continued efforts are needed to identify the predictive biomarkers and to investigate novel mechanistically-driven mono- and combination therapies. We need to learn more about the biology behind immune checkpoint blockade and tumor genomics in SCC for better patient selection and future trial design.
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Affiliation(s)
- Elaine Shum
- a Department of Oncology , Montefiore Medical Center/Albert Einstein College of Medicine , Bronx , NY , USA
| | - Feng Wang
- a Department of Oncology , Montefiore Medical Center/Albert Einstein College of Medicine , Bronx , NY , USA
| | - Salem Kim
- a Department of Oncology , Montefiore Medical Center/Albert Einstein College of Medicine , Bronx , NY , USA
| | - Roman Perez-Soler
- a Department of Oncology , Montefiore Medical Center/Albert Einstein College of Medicine , Bronx , NY , USA
| | - Haiying Cheng
- a Department of Oncology , Montefiore Medical Center/Albert Einstein College of Medicine , Bronx , NY , USA
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Dholaria B, Hammond W, Shreders A, Lou Y. Emerging therapeutic agents for lung cancer. J Hematol Oncol 2016; 9:138. [PMID: 27938382 PMCID: PMC5148871 DOI: 10.1186/s13045-016-0365-z] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 11/29/2016] [Indexed: 12/26/2022] Open
Abstract
Lung cancer continues to be the most common cause of cancer-related mortality worldwide. Recent advances in molecular diagnostics and immunotherapeutics have propelled the rapid development of novel treatment agents across all cancer subtypes, including lung cancer. Additionally, more pharmaceutical therapies for lung cancer have been approved by the US Food and Drug Administration in the last 5 years than in previous two decades. These drugs have ushered in a new era of lung cancer managements that have promising efficacy and safety and also provide treatment opportunities to patients who otherwise would have no conventional chemotherapy available. In this review, we summarize recent advances in lung cancer therapeutics with a specific focus on first in-human or early-phase I/II clinical trials. These drugs either offer better alternatives to drugs in their class or are a completely new class of drugs with novel mechanisms of action. We have divided our discussion into targeted agents, immunotherapies, and antibody drug conjugates for small cell lung cancer (SCLC) and non-small-cell lung cancer (NSCLC). We briefly review the emerging agents and ongoing clinical studies. We have attempted to provide the most current review on emerging therapeutic agents on horizon for lung cancer.
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Affiliation(s)
- Bhagirathbhai Dholaria
- Department of Hematology-Oncology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA
| | - William Hammond
- Department of Hematology-Oncology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA
| | - Amanda Shreders
- Department of Hematology-Oncology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA
| | - Yanyan Lou
- Department of Hematology-Oncology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA.
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