1
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Åkerlund E, Gudoityte G, Moussaud-Lamodière E, Lind O, Bwanika HC, Lehti K, Salehi S, Carlson J, Wallin E, Fernebro J, Östling P, Kallioniemi O, Joneborg U, Seashore-Ludlow B. The drug efficacy testing in 3D cultures platform identifies effective drugs for ovarian cancer patients. NPJ Precis Oncol 2023; 7:111. [PMID: 37907613 PMCID: PMC10618545 DOI: 10.1038/s41698-023-00463-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 10/06/2023] [Indexed: 11/02/2023] Open
Abstract
Most patients with advanced ovarian cancer (OC) relapse and progress despite systemic therapy, pointing to the need for improved and tailored therapy options. Functional precision medicine can help to identify effective therapies for individual patients in a clinically relevant timeframe. Here, we present a scalable functional precision medicine platform: DET3Ct (Drug Efficacy Testing in 3D Cultures), where the response of patient cells to drugs and drug combinations are quantified with live-cell imaging. We demonstrate the delivery of individual drug sensitivity profiles in 20 samples from 16 patients with ovarian cancer in both 2D and 3D culture formats, achieving over 90% success rate in providing results six days after operation. In this cohort all patients received carboplatin. The carboplatin sensitivity scores were significantly different for patients with a progression free interval (PFI) less than or equal to 12 months and those with more than 12 months (p < 0.05). We find that the 3D culture format better retains proliferation and characteristics of the in vivo setting. Using the DET3Ct platform we evaluate 27 tailored combinations with results available 10 days after operation. Notably, carboplatin and A-1331852 (Bcl-xL inhibitor) showed an additive effect in four of eight OC samples tested, while afatinib and A-1331852 led to synergy in five of seven OC models. In conclusion, our 3D DET3Ct platform can rapidly define potential, clinically relevant data on efficacy of existing drugs in OC for precision medicine purposes, as well as provide insights on emerging drugs and drug combinations that warrant testing in clinical trials.
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Affiliation(s)
- Emma Åkerlund
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | - Greta Gudoityte
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | | | - Olina Lind
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | | | - Kaisa Lehti
- Department of Biomedical Laboratory Science, Norwegian University of Science and Technology NTNU, Trondheim, Norway
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Sahar Salehi
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- Department of Pelvic Cancer, Theme Cancer, Karolinska University Hospital, Stockholm, Sweden
- Department of Women's and Children's Health, Division of Obstetrics and Gynecology, Karolinska Institutet, Stockholm, Sweden
| | - Joseph Carlson
- Department of Pathology and Laboratory Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90089, USA
- Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | - Emelie Wallin
- Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
- Department of Pelvic Cancer, Theme Cancer, Karolinska University Hospital, Stockholm, Sweden
| | - Josefin Fernebro
- Department of Women's and Children's Health, Division of Obstetrics and Gynecology, Karolinska Institutet, Stockholm, Sweden
- Department of Pelvic Cancer, Theme Cancer, Karolinska University Hospital, Stockholm, Sweden
| | - Päivi Östling
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | - Olli Kallioniemi
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
- Institute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland
| | - Ulrika Joneborg
- Department of Pelvic Cancer, Theme Cancer, Karolinska University Hospital, Stockholm, Sweden
- Department of Women's and Children's Health, Division of Obstetrics and Gynecology, Karolinska Institutet, Stockholm, Sweden
| | - Brinton Seashore-Ludlow
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden.
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2
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Prasad S, Dangi JS. Targeting efficacy and anticancer activity of polymeric nanoparticles of SN-38 on colon cancer cell lines. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2023. [DOI: 10.1186/s43094-023-00462-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
Abstract
Background
Colorectal cancer is the third most prevailing cancer in the whole world. Chemotherapeutic agents which are used for treatment have severe side effects and also have unwanted exposure to healthy cells. In the present study, polymeric nanoparticles of SN-38 were prepared (using cationic and anionic polymers). They were optimized by Box Behnken design and characterized for its physicochemical properties and in vitro drug release. Optimized formulation (CsENP) was evaluated for its targeting efficacy by Gamma Scintigraphy studies on Swiss Albino mice and in vitro Cytotoxic assay against colon cancer cell line, viz. HT-29.
Results
The images of Whole body gamma scintigraphy imaging of Swiss Albino mice show that CsENP remained intact till 2 h and after that at 4 h imaging it started dispersing and releasing drug which continued till 20 h. In Organ distribution studies, no radioactivity was traced in heart from the formulation. Even in liver, spleen, kidney and lung trace radioactivity was seen after 6 h. In case of CsENP radioactivity was seen in small intestine after 2 h and maximum (87.8% radioactivity) is seen in colon and rectum area after 4 h. At equivalent concentrations, the in vitro cell viability of HT-29 cells after 72 h incubation time showed that CsENP have enhanced cytotoxicity.
Conclusions
The results obtained of Whole body gamma scintigraphy imaging and organ distribution of Swiss Albino mice show that CsENP is Colon targeting and was found to be effective against colon cancer cell lines.
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3
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Elshazly AM, Wright PA, Xu J, Gewirtz DA. Topoisomerase I poisons-induced autophagy: Cytoprotective, Cytotoxic or Non-protective. AUTOPHAGY REPORTS 2022; 2:1-16. [PMID: 36936397 PMCID: PMC10019749 DOI: 10.1080/27694127.2022.2155904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 12/02/2022] [Indexed: 12/27/2022]
Abstract
Topoisomerase I inhibitors represent a widely used class of antineoplastic agents that promote both single-stranded and double-stranded breaks in the DNA of tumor cells, leading to tumor cell death. Topotecan and irinotecan are the clinically relevant derivatives of the parent drug, camptothecin. As is the case with many if not most anticancer agents, irinotecan and topotecan promote autophagy. However, whether the autophagy is cytotoxic, cytoprotective, or non-protective is not clearly defined, and may depend largely upon the genetic background of the tumor cell being investigated. This review explores the available literature regarding the nature of the autophagy induced by these clinically utilized topoisomerase I inhibitors in preclinical tumor models with the goal of determining whether the targeting of autophagy might have potential as a therapeutic strategy to enhance the antitumor response and/or overcome drug resistance.
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Affiliation(s)
- Ahmed M. Elshazly
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Massey Cancer Center, 401 College St., Richmond, VA 23298, USA
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Polina A. Wright
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Massey Cancer Center, 401 College St., Richmond, VA 23298, USA
| | - Jingwen Xu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - David A. Gewirtz
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Massey Cancer Center, 401 College St., Richmond, VA 23298, USA
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4
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Wu Q, Qian W, Sun X, Jiang S. Small-molecule inhibitors, immune checkpoint inhibitors, and more: FDA-approved novel therapeutic drugs for solid tumors from 1991 to 2021. J Hematol Oncol 2022; 15:143. [PMID: 36209184 PMCID: PMC9548212 DOI: 10.1186/s13045-022-01362-9] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 10/02/2022] [Indexed: 11/10/2022] Open
Abstract
The United States Food and Drug Administration (US FDA) has always been a forerunner in drug evaluation and supervision. Over the past 31 years, 1050 drugs (excluding vaccines, cell-based therapies, and gene therapy products) have been approved as new molecular entities (NMEs) or biologics license applications (BLAs). A total of 228 of these 1050 drugs were identified as cancer therapeutics or cancer-related drugs, and 120 of them were classified as therapeutic drugs for solid tumors according to their initial indications. These drugs have evolved from small molecules with broad-spectrum antitumor properties in the early stage to monoclonal antibodies (mAbs) and antibody‒drug conjugates (ADCs) with a more precise targeting effect during the most recent decade. These drugs have extended indications for other malignancies, constituting a cancer treatment system for monotherapy or combined therapy. However, the available targets are still mainly limited to receptor tyrosine kinases (RTKs), restricting the development of antitumor drugs. In this review, these 120 drugs are summarized and classified according to the initial indications, characteristics, or functions. Additionally, RTK-targeted therapies and immune checkpoint-based immunotherapies are also discussed. Our analysis of existing challenges and potential opportunities in drug development may advance solid tumor treatment in the future.
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Affiliation(s)
- Qing Wu
- School of Medical Imaging, Hangzhou Medical College, Hangzhou, 310053 Zhejiang China
| | - Wei Qian
- Department of Radiology, School of Medicine, The Second Affiliated Hospital, Zhejiang University, Hangzhou, 310009 Zhejiang China
| | - Xiaoli Sun
- Department of Radiation Oncology, School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, 310003 Zhejiang China
| | - Shaojie Jiang
- School of Medical Imaging, Hangzhou Medical College, Hangzhou, 310053 Zhejiang China
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5
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Pires AS, Marques CR, Encarnação JC, Abrantes AM, Marques IA, Laranjo M, Oliveira R, Casalta-Lopes JE, Gonçalves AC, Sarmento-Ribeiro AB, Botelho MF. Ascorbic Acid Chemosensitizes Colorectal Cancer Cells and Synergistically Inhibits Tumor Growth. Front Physiol 2018; 9:911. [PMID: 30083105 PMCID: PMC6064950 DOI: 10.3389/fphys.2018.00911] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 06/21/2018] [Indexed: 12/17/2022] Open
Abstract
Colorectal cancer (CRC) is continuously classified as one of the most incidental and mortal types of cancer worldwide. The positive outcomes of the conventional chemotherapy are frequently associated with high toxicity, which often leads to the suspension of the treatment. Growing evidences consider the use of pharmacological concentrations of ascorbic acid (AA), better known as vitamin C, in the treatment of cancer. The use of AA in a clinical context is essentially related to the adoption of new therapeutic strategies based on combination regimens, where AA plays a chemosensitizing role. The reduced sensitivity of some tumors to chemotherapy and the highly associated adverse effects continue to be some of the major obstacles in the effective treatment of CRC. So, this paper aimed to study the potential of a new therapeutic approach against this neoplasia with diminished side effects for the patient. This approach was based on the study of the combination of high concentrations of AA with reduced concentrations of drugs conventionally used in CRC patients and eligible for first and second line chemotherapeutic regimens, namely 5-fluorouracilo (5-FU), oxaliplatin (Oxa) or irinotecan (Iri). The evaluation of the potential synergy between the compounds was first assessed in vitro in three CRC cell lines with different genetic background and later in vivo using one xenograft animal model of CRC. AA and 5-FU act synergistically in vitro just for longer incubation times, however, in vivo showed no benefit compared to 5-FU alone. In contrast to the lack of synergy seen in in vitro studies with the combination of AA with irinotecan, the animal model revealed the therapeutic potential of this combination. AA also potentiated the effect of Oxa, since a synergistic effect was demonstrated, in almost all conditions and in the three cell lines. Moreover, this combined therapy (CT) caused a stagnation of the tumor growth rate, being the most promising tested combination. Pharmacological concentrations of AA increased the efficacy of Iri and Oxa against CRC, with promising results in cell lines with more aggressive phenotypes, namely, tumors with mutant or null P53 expression and tumors resistant to chemotherapy.
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Affiliation(s)
- Ana S Pires
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal.,Institute for Clinical and Biomedical Research Area of Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Cláudia R Marques
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal
| | - João C Encarnação
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Institute for Clinical and Biomedical Research Area of Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Ana M Abrantes
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Institute for Clinical and Biomedical Research Area of Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Inês A Marques
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Institute for Clinical and Biomedical Research Area of Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Mafalda Laranjo
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Institute for Clinical and Biomedical Research Area of Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Rui Oliveira
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Institute for Clinical and Biomedical Research Area of Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Department of Pathology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - João E Casalta-Lopes
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Institute for Clinical and Biomedical Research Area of Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Ana C Gonçalves
- Institute for Clinical and Biomedical Research Area of Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Oncobiology and Hematology Laboratory, Applied Molecular Biology and University Clinic of Hematology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Ana B Sarmento-Ribeiro
- Institute for Clinical and Biomedical Research Area of Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Oncobiology and Hematology Laboratory, Applied Molecular Biology and University Clinic of Hematology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Department of Hematology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Maria F Botelho
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Institute for Clinical and Biomedical Research Area of Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
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6
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Daskalakis K, Norlén O, Karakatsanis A, Hellman P, Larsson R, Nygren P, Stålberg P. Ex vivo activity of cytotoxic drugs and targeted agents in small intestinal neuroendocrine tumors. Endocr Relat Cancer 2018; 25:471-480. [PMID: 29440231 DOI: 10.1530/erc-17-0404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 02/12/2018] [Indexed: 12/16/2022]
Abstract
Small intestinal neuroendocrine tumors (SI-NETs) are generally considered resistant to systemic treatment. To date, predictive markers for drug activity are lacking. Tumor samples from 27 patients with SI-NETs were analyzed ex vivo for sensitivity to a panel of cytotoxic drugs and targeted agents using a short-term total cell kill assay. Samples of renal cancer, colorectal cancer (CRC), ovarian cancer and chronic lymphocytic leukemia (CLL) were included for comparison. For the SI-NET subset, drug sensitivity was analyzed in relation to clinicopathological variables and pre-treatment biomarkers. For cytotoxic drugs, SI-NETs demonstrated similar or higher sensitivity to 5-FU, platinum, gemcitabine and doxorubicin compared with CRC. For several of the targeted kinase inhibitors, SI-NET was among the most sensitive solid tumor types. CLL and ovarian cancer were generally the most sensitive tumor types to both cytotoxic drugs and protein kinase inhibitors. SI-NET was more sensitive to the mTOR inhibitor sirolimus than the other solid tumor types tested. Individual SI-NET samples demonstrated great variability in ex vivo sensitivity for most drugs. Cross-resistance between different drugs also varied considerably, being higher among protein kinase inhibitors. Age, stage, grade, peritoneal carcinomatosis and extra-abdominal metastases as well as serum chromogranin A and urine 5-HIAA concentrations at diagnosis did not correlate to drug sensitivity ex vivo SI-NETs exhibit intermediate sensitivity ex vivo to cytotoxic and targeted drugs. Clinicopathological factors and currently used biomarkers are not clearly associated to ex vivo sensitivity, challenging these criteria for treatment decisions in SI-NET. The great variability in drug sensitivity calls for individualized selection of therapy.
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Affiliation(s)
- Kosmas Daskalakis
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Olov Norlén
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | | | - Per Hellman
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Rolf Larsson
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Peter Nygren
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Peter Stålberg
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
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7
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Huang SH, Chao Y, Wu YY, Luo JC, Kao CH, Yen SH, Li CP. Concurrence of UGT1A Polymorphism and End-Stage Renal Disease Leads to Severe Toxicities of Irinotecan in a Patient with Metastatic Colon Cancer. TUMORI JOURNAL 2018; 97:243-7. [DOI: 10.1177/030089161109700221] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aims and background Colorectal cancer is one of the most common malignancies in the world, and irinotecan (CPT-11) is useful in its treatment. However, the safety and pharmacokinetics of irinotecan in dialysis patients with metastatic colorectal cancer are unclear. Case report We report the case of a 74-year-old man receiving chronic hemodialysis who had metastatic colorectal cancer. Palliative chemotherapy with irinotecan (80 mg/m2 weekly) was administered after hemodialysis. Blood samples were collected before and 1.5, 3, 6, 9, and 15 hours after administration of irinotecan. The peak serum concentrations (Cmax) of irinotecan and SN-38 in this patient were 1, 480 and 17.8 ng/mL, respectively, which were similar to the reported values in patients with normal renal function after a similar dose of irinotecan (75 mg/m2). The area under the serum concentration-time curve (AUC0-∞) was 8, 240 ng×h/mL for irinotecan and 619 ng×h/mL for SN-38. The AUC0-∞ for SN-38 was markedly higher than that for patients with normal renal function. Sequencing analysis of the UGT1A genes found that the patient had variant alleles of UGT1A1*28, UGT1A1*60 and UGT1A9*22, which may lead to decreased glucuronidation and excretion of SN-38, and may account for increased irinotecan-related toxicity. The patient developed febrile grade 4 neutropenia on day 7 after chemotherapy and died of septic shock on day 14. Conclusions UGT1A polymorphisms and renal failure may lead to accumulation of SN-38, which may have played a role in the death of this patient. Irinotecan should be used cautiously in dialysis patients with metastatic colorectal cancer and screening for UGT1A polymorphisms may help in identifying patients with lower SN-38 glucuronidation rates and greater susceptibility to irinotecan-induced toxicity.
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Affiliation(s)
- Sung-Hao Huang
- Department of Medicine, National Yang-Ming University Hospital, Taipei Veterans General Hospital, Taipei, Taiwan
- National Yang-Ming University School of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yee Chao
- National Yang-Ming University School of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Cancer Center, Taipei Veterans General Hospital, Taipei, Taiwan
- Central Clinic Hospital, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ying-Ying Wu
- National Yang-Ming University School of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Jiing-Chyuan Luo
- National Yang-Ming University School of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chien-Hui Kao
- National Yang-Ming University School of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Sang-Hue Yen
- National Yang-Ming University School of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Cancer Center, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chung-Pin Li
- National Yang-Ming University School of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
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8
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Naumczuk B, Kawęcki R, Bocian W, Bednarek E, Sitkowski J, Kozerski L. Preliminary study of mechanism of action of SN38 derivatives. Physicochemical data, evidence of interaction and alkylation of DNA octamer d(GCGATCGC) 2. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2017; 55:128-136. [PMID: 27575369 DOI: 10.1002/mrc.4508] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/17/2016] [Accepted: 08/26/2016] [Indexed: 06/06/2023]
Abstract
The synthesis of water-soluble SN38 derivatives is presented, and their stability in solutions used during drug development studies has been investigated. A preliminary study of mechanism of action of 9-aminomethyl SN38 is presented. Using NMR techniques, the interaction of the oligomer d(GCGATCGC)2 is studied, showing that the terminal GC base pairs are the main site of interaction. Using pulsed field gradient spin echo and mass spectroscopy, evidence of a spontaneous alkylation reaction of the DNA oligomer with SN38 derivatives is presented. A proposed mechanism of reaction is suggested. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Beata Naumczuk
- Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw, Poland
| | - Robert Kawęcki
- University of Natural Sciences and Humanities, Siedlce, Poland
| | - Wojciech Bocian
- Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw, Poland
- National Medicines Institute, Warsaw, Poland
| | | | - Jerzy Sitkowski
- Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw, Poland
- National Medicines Institute, Warsaw, Poland
| | - Lech Kozerski
- Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw, Poland
- National Medicines Institute, Warsaw, Poland
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9
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Beske O, Guo J, Li J, Bassoni D, Bland K, Marciniak H, Zarowitz M, Temov V, Ravkin I, Goldbard S. A Novel Encoded Particle Technology that Enables Simultaneous Interrogation of Multiple Cell Types. ACTA ACUST UNITED AC 2016; 9:173-85. [PMID: 15140379 DOI: 10.1177/1087057103260088] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The authors have developed a cellular analysis platform, based on encoded microcarriers, that enables the multiplexed analysis of a diverse range of cellular assays. At the core of this technology are classes of microcarriers that have unique, identifiable codes that are deciphered using CCD-based imaging and subsequent image analysis. The platform is compatible with a wide variety of cellular imaging-based assays, including calcium flux, reporter gene activation, cytotoxicity, and proliferation. In addition, the platform is compatible with both colorimetric and fluorescent readouts. Notably, this technology has the unique ability to multiplex different cell lines in a single microplate well, enabling scientists to perform assays and data analysis in novel ways.
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MESH Headings
- Animals
- CHO Cells
- Calcium/metabolism
- Carbachol/pharmacology
- Cell Division/drug effects
- Cells, Cultured
- Cells, Immobilized
- Cricetinae
- Drug Evaluation, Preclinical/methods
- Humans
- Image Processing, Computer-Assisted
- Kallidin/pharmacology
- Microscopy/instrumentation
- Microscopy/methods
- Molecular Biology/methods
- Particle Size
- Receptor, Bradykinin B2/analysis
- Receptor, Bradykinin B2/drug effects
- Receptor, Bradykinin B2/genetics
- Receptors, G-Protein-Coupled/analysis
- Receptors, G-Protein-Coupled/drug effects
- Receptors, G-Protein-Coupled/genetics
- Receptors, Muscarinic/analysis
- Receptors, Muscarinic/drug effects
- Receptors, Muscarinic/genetics
- Signal Transduction
- Toxicity Tests
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Affiliation(s)
- Oren Beske
- Vitra Bioscience, Inc., Mountain View, CA 94043, USA.
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10
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Boudreau CE, York D, Higgins RJ, LeCouteur RA, Dickinson PJ. Molecular signalling pathways in canine gliomas. Vet Comp Oncol 2015; 15:133-150. [PMID: 25808605 DOI: 10.1111/vco.12147] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 02/04/2015] [Accepted: 02/19/2015] [Indexed: 12/22/2022]
Abstract
In this study, we determined the expression of key signalling pathway proteins TP53, MDM2, P21, AKT, PTEN, RB1, P16, MTOR and MAPK in canine gliomas using western blotting. Protein expression was defined in three canine astrocytic glioma cell lines treated with CCNU, temozolamide or CPT-11 and was further evaluated in 22 spontaneous gliomas including high and low grade astrocytomas, high grade oligodendrogliomas and mixed oligoastrocytomas. Response to chemotherapeutic agents and cell survival were similar to that reported in human glioma cell lines. Alterations in expression of key human gliomagenesis pathway proteins were common in canine glioma tumour samples and segregated between oligodendroglial and astrocytic tumour types for some pathways. Both similarities and differences in protein expression were defined for canine gliomas compared to those reported in human tumour counterparts. The findings may inform more defined assessment of specific signalling pathways for targeted therapy of canine gliomas.
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Affiliation(s)
- C E Boudreau
- Department of Small Animal Clinical Sciences, Texas A&M, College Station, TX, USA
| | - D York
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - R J Higgins
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - R A LeCouteur
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - P J Dickinson
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, CA, USA
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11
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von Heideman A, Tholander B, Grundmark B, Cajander S, Gerdin E, Holm L, Axelsson A, Rosenberg P, Mahteme H, Daniel E, Larsson R, Nygren P. Chemotherapeutic drug sensitivity of primary cultures of epithelial ovarian cancer cells from patients in relation to tumour characteristics and therapeutic outcome. Acta Oncol 2014; 53:242-50. [PMID: 23713890 DOI: 10.3109/0284186x.2013.794956] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
BACKGROUND A number of chemotherapeutic drugs are active in epithelial ovarian cancer (EOC) but so far choice of drugs for treatment is mostly empirically based. Testing of drug activity in tumour cells from patients might provide a rationale for a more individualised approach for drug selection. MATERIAL AND METHODS Sensitivity of EOC to chemotherapeutic drugs was analysed in 125 tumour samples from 112 patients using a short-term primary culture assay based on the concept of total cell kill. Sensitivity was related to tumour histology, treatment status and clinical tumour response. RESULTS For most EOC standard drugs serous high grade and clear cell EOC were the most sensitive subtypes and the mucinous tumours the most resistant subtype. Docetaxel, however, tended to show the opposite pattern. Samples from previously treated patients tended to be more resistant than those from treatment naïve patients. The activity of cisplatin correlated with that of other drugs with the exception of docetaxel. Tumour samples from two sites in the same patient at the same occasion showed similar cisplatin sensitivity in contrast to samples taken at different occasions. Samples from patients responding in the clinic to treatment were more sensitive to most drugs than samples from non-responding patients. At the individual patient level, drug sensitivity in vitro compared with clinical response showed sensitivities and specificities in the 83-100% and 55-83% ranges, respectively. CONCLUSIONS Assessment of EOC tumour cell drug sensitivity in vitro provides clinically relevant and potentially useful information for the optimisation of drug treatment.
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Affiliation(s)
- Anne von Heideman
- Department of Radiology, Oncology and Radiation Science, Uppsala University , Uppsala , Sweden
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Cashin PH, Mahteme H, Graf W, Karlsson H, Larsson R, Nygren P. Activity ex vivo of cytotoxic drugs in patient samples of peritoneal carcinomatosis with special focus on colorectal cancer. BMC Cancer 2013; 13:435. [PMID: 24063788 PMCID: PMC3849561 DOI: 10.1186/1471-2407-13-435] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Accepted: 09/13/2013] [Indexed: 12/21/2022] Open
Abstract
Background The optimal choice of cytotoxic drugs for intraperitoneal chemotherapy (IPC) in conjunction with cytoreductive surgery (CRS) for treatment of peritoneal carcinomatosis (PC) is poorly defined. We investigated drug sensitivity ex vivo in patient samples of various PC tumor types and correlated clinical outcome to drug sensitivity within the subset of PC from colorectal cancer (CRC). Methods PC tissue samples (n = 174) from mesothelioma, pseudomyxoma peritonei (PMP), ovarian cancer, CRC or appendix cancer were analyzed ex vivo for sensitivity to oxaliplatin, cisplatin, mitomycin C, melphalan, irinotecan, docetaxel, doxorubicin and 5-FU. Clinicopathological variables and outcome data were collected for the CRC subset. Results Mesothelioma and ovarian cancer were generally more drug sensitive than CRC, appendix cancer and PMP. Oxaliplatin showed the most favorable ratio between achievable IPC concentration and ex vivo drug sensitivity. Drug sensitivity in CRC varied considerably between individual samples. Ex vivo drug sensitivity did not obviously correlate to time-to-progression (TTP) in individual patients. Conclusions Drug-sensitivity varies considerably between PC diagnoses and individual patients arguing for individualized therapy in IPC rather than standard diagnosis-specific therapy. However, in the current paradigm of treatment according to diagnosis, oxaliplatin is seemingly the preferred drug for IPC from a drug sensitivity and concentration perspective. In the CRC subset, analysis of correlation between ex vivo drug sensitivity and TTP was inconclusive due to the heterogeneous nature of the data.
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Affiliation(s)
- Peter H Cashin
- Department of Surgical Sciences, Section of Surgery, Akademiska Sjukhuset, Uppsala University, Uppsala S-751 85, Sweden.
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13
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Wu X, Sooman L, Wickström M, Fryknäs M, Dyrager C, Lennartsson J, Gullbo J. Alternative cytotoxic effects of the postulated IGF-IR inhibitor picropodophyllin in vitro. Mol Cancer Ther 2013; 12:1526-36. [PMID: 23699657 DOI: 10.1158/1535-7163.mct-13-0091] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The insulin-like growth factor-1 (IGF-I) and its receptors play an important role in transformation and progression of several malignancies. Inhibitors of this pathway have been developed and evaluated but generally performed poorly in clinical trials, and several drug candidates have been abandoned. The cyclolignan picropodophyllin (PPP) has been described as a potent and selective IGF-IR inhibitor and is currently undergoing clinical trials. We investigated PPP's activity in panels of human cancer cell lines (e.g., esophageal squamous carcinoma cell lines) but found no effects on the phosphorylation or expression of IGF-IR. Nor was the cytotoxic activity of PPP related to the presence or spontaneous phosphorylation of IGF-IR. However, its activity correlated with that of known tubulin inhibitors, and it destabilized microtubule assembly at cytotoxic concentrations also achievable in patients. PPP is a stereoisomer of podophyllotoxin (PPT), a potent tubulin inhibitor, and an equilibrium between the two has previously been described. PPP could thus potentially act as a reservoir for the continuous generation of low doses of PPT. Interestingly, PPP also inhibited downstream signaling from tyrosine kinase receptors, including the serine/threonine kinase Akt. This effect is associated with microtubule-related downregulation of the EGF receptor, rather than the IGF-IR. These results suggest that the cytotoxicity and pAkt inhibition observed following treatment with the cyclolignan PPP in vitro result from microtubule inhibition (directly or indirectly by spontaneous PPT formation), rather than any effect on IGF-IR. It is also suggested that PPT should be used as a reference compound in all future studies on PPP.
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Affiliation(s)
- Xuping Wu
- Section of Oncology, Department of Oncology, Radiology and Clinical Immunology, Uppsala University Hospital, Uppsala, Sweden.
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Kim CY, Lee SJ, Kim SK, Park CK, Wang KC, Cho BK. Antitumor activity of CKD-602, a camptothecin derivative, in a mouse glioma model. J Clin Neurosci 2012; 19:301-5. [DOI: 10.1016/j.jocn.2011.03.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 03/01/2011] [Accepted: 03/07/2011] [Indexed: 10/14/2022]
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15
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Hassan S, Laryea D, Mahteme H, Felth J, Fryknäs M, Fayad W, Linder S, Rickardson L, Gullbo J, Graf W, Påhlman L, Glimelius B, Larsson R, Nygren P. Novel activity of acriflavine against colorectal cancer tumor cells. Cancer Sci 2011; 102:2206-13. [PMID: 21910782 DOI: 10.1111/j.1349-7006.2011.02097.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
A high-throughput screen of the cytotoxic activity of 2000 molecules from a commercial library in three human colon cancer cell lines and two normal cell types identified the acridine acriflavin to be a colorectal cancer (CRC) active drug. Acriflavine was active in cell spheroids, indicating good drug penetration and activity against hypoxic cells. In a validation step based on primary cultures of patient tumor cells, acriflavine was found to be more active against CRC than ovarian cancer and chronic lymphocytic leukemia. This contrasted to the activity pattern of the CRC active standard drugs 5-fluorouracil, irinotecan and oxaliplatin. Mechanistic studies indicated acriflavine to be a dual topoisomerase I and II inhibitor. In conclusion, the strategy used seems promising for identification of new diagnosis-specific cancer drugs.
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Affiliation(s)
- Saadia Hassan
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden.
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16
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Carol H, Houghton PJ, Morton CL, Kolb EA, Gorlick R, Reynolds CP, Kang MH, Maris JM, Keir ST, Watkins A, Smith MA, Lock RB. Initial testing of topotecan by the pediatric preclinical testing program. Pediatr Blood Cancer 2010; 54:707-15. [PMID: 20017204 PMCID: PMC2923808 DOI: 10.1002/pbc.22352] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Topotecan is a small molecule DNA topoisomerase I poison, that has been successful in clinical trials against pediatric solid tumors and leukemias. Topotecan was evaluated against the Pediatric Preclinical Testing Program (PPTP) tumor panels as part of a validation process for these preclinical models. PROCEDURES In vivo three measures of antitumor activity were used: (1) an objective response measure modeled after the clinical setting; (2) a treated to control (T/C) tumor volume measure; and (3) a time to event (fourfold increase in tumor volume for solid tumor models, or > or =25% human CD45+ cells in the peripheral blood for acute lymphoblastic leukemia, ALL models) measure based on the median event-free survival (EFS) of treated and control animals for each xenograft. RESULTS Topotecan inhibited cell growth in vitro with IC(50) values between 0.71 and 489 nM. Topotecan significantly increased EFS in 32 of 37 (87%) solid tumor xenografts and in all 8 of the ALL xenografts. Seventy-five percent of solid tumors met EFS T/C activity criteria for intermediate (n = 17) or high activity (n = 7). Objective responses were noted in eight solid tumor xenografts (Wilms, rhabdomyosarcoma, Ewing sarcoma, neuroblastoma). Among the six neuroblastomas, three achieved a PR. For the ALL panel, two maintained CRs, three CRs, and two PRs were observed. CONCLUSIONS Topotecan demonstrated broad activity in vitro and in vivo against both the solid tumor and ALL panels, with significant tumor growth delay generated in all the panels. These results further demonstrate the validity of the PPTP panel for preclinical testing of new drugs.
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Affiliation(s)
- Hernan Carol
- Children's Cancer Institute Australia for Medical Research, Randwick, NSW, Australia
| | | | | | | | | | | | - Min H. Kang
- Texas Tech University Health Sciences Center, Lubbock, TX
| | - John M. Maris
- Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine and Abramson Family Cancer Research Institute, Philadelphia, PA
| | | | - Amy Watkins
- St. Jude Children's Research Hospital, Memphis, TN
| | | | - Richard B. Lock
- Children's Cancer Institute Australia for Medical Research, Randwick, NSW, Australia
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Graat HCA, Witlox MA, Schagen FHE, Kaspers GJL, Helder MN, Bras J, Schaap GR, Gerritsen WR, Wuisman PIJM, van Beusechem VW. Different susceptibility of osteosarcoma cell lines and primary cells to treatment with oncolytic adenovirus and doxorubicin or cisplatin. Br J Cancer 2006; 94:1837-44. [PMID: 16736005 PMCID: PMC2361338 DOI: 10.1038/sj.bjc.6603189] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Despite improvements in treatment regimens for osteosarcoma (OS) patients, survival rate has not increased over the last two decades. New treatment modalities are therefore warranted. Preclinical results with conditionally replicative adenoviruses (CRAds) to treat OS are promising. One type of CRAd that was effective against OS cells is Ad5-Δ24RGD. In other types of cancer, CRAds have been shown to interact synergistically with chemotherapeutic agents. Chemotherapy for OS often includes doxorubicin and cisplatin. Therefore, we explored combination treatment of OS cell lines and primary OS cell cultures with Ad5-Δ24RGD and doxorubicin or cisplatin. On OS cell lines, combination treatment was additive to synergistic. Surprisingly, however, on seven of eight primary OS samples no such combination effects were observed. In contrast, in many cases chemotherapy even inhibited CRAd-mediated cell killing. The inhibitory effect of doxorubicin on Ad5-Δ24RGD in primary OS cells appeared to correlate with slow cell growth rate; reduced viral replication and absence of chemotherapy-induced G2 cell cycle arrest. Our results point to the possibility that, at least for OS, virotherapy and chemotherapy should best not be performed simultaneously. In general, our work underscores the importance of testing new genetic anticancer agents and treatment regimens on primary cancer specimens.
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Affiliation(s)
- H C A Graat
- Department of Orthopedic Surgery, VU University Medical Center, Amsterdam, The Netherlands.
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Whitehouse PA, Knight LA, Di Nicolantonio F, Mercer SJ, Sharma S, Cree IA. Heterogeneity of chemosensitivity of colorectal adenocarcinoma determined by a modified ex vivo ATP-tumor chemosensitivity assay (ATP-TCA). Anticancer Drugs 2003; 14:369-75. [PMID: 12782944 DOI: 10.1097/00001813-200306000-00008] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Advanced colorectal cancer (CRC) has a poor prognosis with a 5-year survival of only 5% despite treatment with chemotherapeutic agents. Response rate and overall survival varies little between the commonly used single agents, although combinations achieve better outcomes. It is well established that considerable heterogeneity exists between cancers of the same tissue type, but it has been difficult to establish this for CRC. We therefore investigated the heterogeneity of chemosensitivity in CRC using a modified version of the ex vivo ATP-tumor chemosensitivity assay (ATP-TCA) capable of handling infected tumor tissue. Fifty-three specimens of primary solid or malignant effusions of CRC were tested, of which 46 (87%) were evaluable. There were considerable differences in sensitivities between individuals. The most active single cytotoxic agents in the assay were identified as 5-fluorouracil, irinotecan and mitomycin C (MMC). Cells were exposed to combinations of drugs added simultaneously at the same concentrations tested as single agents. All drug combinations achieved greater growth inhibition than drugs used alone. MMC+gemcitabine was found to be the most effective combination in 83% of specimens. The ATP-TCA has previously been shown to be a good predictor of response to chemotherapy in other tissue types. The degree of heterogeneity demonstrated from these results suggests that the ATP-TCA could be used to identify patients who might benefit from specific chemotherapeutic agents alone or in combination.
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Affiliation(s)
- Pauline A Whitehouse
- Translational Oncology Research Centre, Queen Alexandra Hospital, Portsmouth PO6 3LY, UK
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Abstract
Natural products have been the mainstay of cancer chemotherapy for the past 30 years. However, the quickening pace of (aberrant) gene identification, and the new technologies of combinatorial chemistry and high-throughput screening, should provide access to a wide range of new, totally synthetic drugs. Will these new approaches sound the death knell for therapies based on natural products? In reality, natural products are likely to provide many of the lead structures, and these will be used as templates for the construction of novel compounds with enhanced biological properties.
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Affiliation(s)
- John Mann
- Queen's University Belfast, David Keir Building, Belfast BT9 5AG, Northern Ireland.
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