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Bahadar N, Bahadar S, Sajid A, Wahid M, Ali G, Alghamdi A, Zada H, Khan T, Ullah S, Sun Q. Epigallocatechin gallate and curcumin inhibit Bcl-2: a pharmacophore and docking based approach against cancer. Breast Cancer Res 2024; 26:114. [PMID: 38978121 PMCID: PMC11229278 DOI: 10.1186/s13058-024-01868-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 07/01/2024] [Indexed: 07/10/2024] Open
Abstract
The protein Bcl-2, well-known for its anti-apoptotic properties, has been implicated in cancer pathogenesis. Identifying the primary gene responsible for promoting improved cell survival and development has provided compelling evidence for preventing cellular death in the progression of malignancies. Numerous research studies have provided evidence that the abundance of Bcl-2 is higher in malignant cells, suggesting that suppressing Bcl-2 expression could be a viable therapeutic approach for cancer treatment. In this study, we acquired a compound collection using a database that includes constituents from Traditional Chinese Medicine (TCM). Initially, we established a pharmacophore model and utilized it to search the TCM database for potential compounds. Compounds with a fitness score exceeding 0.75 were selected for further analysis. The Absorption, Distribution, Metabolism, Excretion, and Toxicity (ADMET) analysis identified six compounds with favorable therapeutic characteristics. The compounds that successfully passed the initial screening process based on the pharmacodynamic model were subjected to further evaluation. Extra-precision (XP) docking was employed to identify the compounds with the most favorable XP docking scores. Further analysis using the Molecular Mechanics Generalized Born Surface Area (MM-GBSA) method to calculate the overall free binding energy. The binding energy between the prospective ligand molecule and the target protein Bcl-2 was assessed by a 100 ns molecular dynamics simulation for curcumin and Epigallocatechin gallate (EGCG). The findings of this investigation demonstrate the identification of a molecular structure that effectively inhibits the functionality of the Bcl-2 when bound to the ligand EGCG. Consequently, this finding presents a novel avenue for the development of pharmaceuticals capable of effectively addressing both inflammatory and tumorous conditions.
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Affiliation(s)
- Noor Bahadar
- Department of Otorhinolaryngology, Head and Neck Surgery, The China-Japan Union Hospital of Jilin University, Xiantai Street 126, 130033, Changchun, Jilin, China
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), School of Life Sciences, Northeast Normal University, Renmin Street, Changchun, Jilin, 130024, China
| | - Sher Bahadar
- College of Veterinary Sciences and Animal Husbandry, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Abdul Sajid
- College of Veterinary Sciences and Animal Husbandry, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Muqeet Wahid
- Department of Pharmacy, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Ghadir Ali
- Department of Life Sciences, School of Science, University of Management and Technology (UMT), Lahore, 54700, Pakistan
| | - Abdullah Alghamdi
- Department of Medical Laboratory, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
| | - Hakeem Zada
- Mubarak Diagnostic Laboratory and Research Center, Peshawar, Pakistan
| | - Tamreez Khan
- College of Veterinary Sciences and Animal Husbandry, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Shafqat Ullah
- College of Veterinary Sciences and Animal Husbandry, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Qingjia Sun
- Department of Otorhinolaryngology, Head and Neck Surgery, The China-Japan Union Hospital of Jilin University, Xiantai Street 126, 130033, Changchun, Jilin, China.
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Gauss C, Stone LD, Ghafouri M, Quan D, Johnson J, Fribley AM, Amm HM. Overcoming Resistance to Standard-of-Care Therapies for Head and Neck Squamous Cell Carcinomas. Cells 2024; 13:1018. [PMID: 38920648 PMCID: PMC11201455 DOI: 10.3390/cells13121018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 06/05/2024] [Indexed: 06/27/2024] Open
Abstract
Although there have been some advances during in recent decades, the treatment of head and neck squamous cell carcinoma (HNSCC) remains challenging. Resistance is a major issue for various treatments that are used, including both the conventional standards of care (radiotherapy and platinum-based chemotherapy) and the newer EGFR and checkpoint inhibitors. In fact, all the non-surgical treatments currently used for HNSCC are associated with intrinsic and/or acquired resistance. Herein, we explore the cellular mechanisms of resistance reported in HNSCC, including those related to epigenetic factors, DNA repair defects, and several signaling pathways. This article discusses these mechanisms and possible approaches that can be used to target different pathways to sensitize HNSCC to the existing treatments, obtain better responses to new agents, and ultimately improve the patient outcomes.
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Affiliation(s)
- Chester Gauss
- Carman and Ann Adams Department of Pediatrics, School of Medicine, Wayne State University, Detroit, MI 48202, USA; (C.G.); (M.G.)
| | - Logan D. Stone
- Oral & Maxillofacial Surgery, School of Dentistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA;
| | - Mehrnoosh Ghafouri
- Carman and Ann Adams Department of Pediatrics, School of Medicine, Wayne State University, Detroit, MI 48202, USA; (C.G.); (M.G.)
| | - Daniel Quan
- Department of Otolaryngology Head and Neck Surgery, School of Medicine, Wayne State University, Detroit, MI 48202, USA; (D.Q.)
| | - Jared Johnson
- Department of Otolaryngology Head and Neck Surgery, School of Medicine, Wayne State University, Detroit, MI 48202, USA; (D.Q.)
| | - Andrew M. Fribley
- Carman and Ann Adams Department of Pediatrics, School of Medicine, Wayne State University, Detroit, MI 48202, USA; (C.G.); (M.G.)
- Department of Otolaryngology Head and Neck Surgery, School of Medicine, Wayne State University, Detroit, MI 48202, USA; (D.Q.)
- Molecular Therapeutics Program, Karmanos Cancer Institute, Wayne State University, Detroit, MI 48202, USA
| | - Hope M. Amm
- Oral & Maxillofacial Surgery, School of Dentistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA;
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Sun Q, Chen X, Luo H, Meng C, Zhu D. Cancer stem cells of head and neck squamous cell carcinoma; distance towards clinical application; a systematic review of literature. Am J Cancer Res 2023; 13:4315-4345. [PMID: 37818051 PMCID: PMC10560931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 08/16/2023] [Indexed: 10/12/2023] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is the major pathological type of head and neck cancer (HNC). The disease ranks sixth among the most common malignancies worldwide, with an increasing incidence rate yearly. Despite the development of therapy, the prognosis of HNSCC remains unsatisfactory, which may be attributed to the resistance to traditional radio-chemotherapy, relapse, and metastasis. To improve the diagnosis and treatment, the targeted therapy for HNSCC may be successful as that for some other tumors. Nanocarriers are the most effective system to deliver the anti-cancerous agent at the site of interest using passive or active targeting approaches. The system enhances the drug concentration in HCN target cells, increases retention, and reduces toxicity to normal cells. Among the different techniques in nanotechnology, quantum dots (QDs) possess multiple fluorescent colors emissions under single-source excitation and size-tunable light emission. Dendrimers are the most attractive nanocarriers, which possess the desired properties of drug retention, release, unaffecting by the immune system, blood circulation time enhancing, and cells or organs specific targeting properties. In this review, we have discussed the up-to-date knowledge of the Cancer Stem Cells of Head and Neck Squamous Cell Carcinoma. Although a lot of data is available, still much more efforts remain to be made to improve the treatment of HNSCC.
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Affiliation(s)
- Qingjia Sun
- Department of Otorhinolaryngology, Head and Neck Surgery, The China-Japan Union Hospital of Jilin UniversityXiantai Street 126, Changchun 130033, Jilin, China
| | - Xi Chen
- Department of Otorhinolaryngology, Head and Neck Surgery, The China-Japan Union Hospital of Jilin UniversityXiantai Street 126, Changchun 130033, Jilin, China
| | - Hong Luo
- Department of Hematology, The First Hospital of QiqiharQiqihar 161005, Heilongjiang, China
| | - Cuida Meng
- Department of Otorhinolaryngology, Head and Neck Surgery, The China-Japan Union Hospital of Jilin UniversityXiantai Street 126, Changchun 130033, Jilin, China
| | - Dongdong Zhu
- Department of Otorhinolaryngology, Head and Neck Surgery, The China-Japan Union Hospital of Jilin UniversityXiantai Street 126, Changchun 130033, Jilin, China
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Melo G, Silva CAB, Hague A, Parkinson EK, Rivero ERC. Anticancer effects of putative and validated BH3-mimetic drugs in head and neck squamous cell carcinomas: An overview of current knowledge. Oral Oncol 2022; 132:105979. [PMID: 35816876 DOI: 10.1016/j.oraloncology.2022.105979] [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: 02/21/2022] [Revised: 05/20/2022] [Accepted: 06/17/2022] [Indexed: 11/16/2022]
Abstract
The purpose of this review was to summarise available literature concerning the anticancer effects of both putative and validated BH3-mimetics in head and neck squamous cell carcinomas. A literature search was performed and studies assessing malignant cell lines, xenograft models, and/or humans were considered eligible. A total of 501 studies were identified, of which 40 were included. One phase-II clinical trial assessing gossypol (combined with docetaxel) was found. The remaining 39 preclinical studies investigated cell lines and/or xenograft models involving the use of six validated BH3-mimetics (A-1210477, A-1331852, ABT-737, navitoclax, S63845, venetoclax) and six putative BH3-mimetics (ApoG2, gossypol, obatoclax, sabutoclax, TW-37, and YC137). In preclinical settings, most validated BH3-mimetics were capable of inducing apoptosis (in-vitro) and tumour growth inhibition (in-vivo). The majority of putative BH3-mimetics were also capable of inducing cell death, although important off-target effects, such as autophagy induction, were also described. Combinations with conventional anticancer drugs, ionising radiation, or multiple BH3-mimetics generally resulted in enhanced anticancer effects, such as increased sensitivity to apoptotic stimuli, especially considering some cell lines that showed resistance to either treatment alone. In conclusion, although clinical data are still insufficient to evaluate the anticancer effects of BH3-mimetics in head and neck squamous cell carcinomas, promising results in preclinical settings were observed concerning induction of cell death and inhibition of tumour growth. Therefore, further clinical trials are highly encouraged.
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Affiliation(s)
- Gilberto Melo
- Postgraduate Program in Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil.
| | - Carolina Amália Barcellos Silva
- Department of Morphological Sciences, Biological Sciences Center, Federal University of Santa Catarina, Florianópolis, Brazil.
| | - Angela Hague
- Senior Lecturer, Bristol Dental School, Bristol, United Kingdom.
| | - Eric Kenneth Parkinson
- Centre for Oral Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.
| | - Elena Riet Correa Rivero
- Department of Pathology, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Brazil.
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Myeloid cell leukemia-1 expression in cancers of the oral cavity: a scoping review. Cancer Cell Int 2022; 22:182. [PMID: 35524332 PMCID: PMC9074253 DOI: 10.1186/s12935-022-02603-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 04/20/2022] [Indexed: 12/04/2022] Open
Abstract
Background B cell lymphoma-2 (Bcl-2) family members play important roles in cell survival as well as cell death. The role of myeloid cell leukemia-1 (Mcl-1), an important member of the Bcl-2 family, is well established in hematopoietic malignancies. However, the association between Mcl-1 and oral cavity, cancers is not clearly defined. Methods A scoping review was conducted until June 30, 2021, using four major databases, PubMed, Scopus, Web of Science, and Embase. Medical subject headings keywords for Mcl-1, along with its other identifiers, and head and neck cancers (only oral cavity tumors) were used to evaluate the expression, function, molecular association, and therapeutic approach of Mcl-1 in oral cavity cancers and precancers. Findings Mcl-1 expression was associated with the progression of oral cavity cancers. The molecular mechanism and pathways of Mcl-1 in oral cavity cancers established via experimental results have been highlighted in this review. Moreover, the various synthetic and naturally derived therapeutic agents targeting Mcl-1 have been documented. Novelty/Improvement Based on our present review, Mcl-1 appears to be an effective anticancer target that can be used in the therapeutic management of oral cancers.
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Lee JM, Kim HS, Kim A, Chang YS, Lee JG, Cho J, Kim EY. ABT-737, a BH3 Mimetic, Enhances the Therapeutic Effects of Ionizing Radiation in K-ras Mutant Non-Small Cell Lung Cancer Preclinical Model. Yonsei Med J 2022; 63:16-25. [PMID: 34913280 PMCID: PMC8688371 DOI: 10.3349/ymj.2022.63.1.16] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 10/07/2021] [Accepted: 10/12/2021] [Indexed: 01/08/2023] Open
Abstract
PURPOSE Tumor radioresistance and dose-limiting toxicity restrict the curative potential of radiotherapy, requiring novel approaches to overcome the limitations and augment the efficacy. Here, we investigated the effects of signal transducer and activator of transcription 3 (STAT3) activation and autophagy induction by irradiation on antiapoptotic proteins and the effectiveness of the BH3 mimetic ABT-737 as a radiosensitizer using K-ras mutant non-small cell lung cancer (NSCLC) cells and a KrasG12D:p53fl/fl mouse (KP mouse) model. MATERIALS AND METHODS A549 and H460 cells were irradiated, and the expression of Bcl-2 family proteins, JAK/STAT transcriptional pathway, and autophagic pathway were evaluated by immunoblotting. The radiosensitizing effects of ABT-737 were evaluated using A549 and H460 cell lines with clonogenic assays and also by a KP mouse model with microcomputed tomography and immunohistochemistry. RESULTS In A549 and H460 cells and mouse lung tissue, irradiation-induced overexpression of the antiapoptotic molecules Bcl-xL, Bcl-2, Bcl-w, and Mcl-1 through JAK/STAT transcriptional signaling induced dysfunction of the autophagic pathway. After treatment with ABT-737 and exposure to irradiation, the number of surviving clones in the cotreatment group was significantly lower than that in the group treated with radiation or ABT-737 alone. In the KP mouse lung cancer model, cotreatment with ABT-737 and radiation-induced significant tumor regression; however, body weight changes in the combination group were not significantly different, suggesting that combination treatment did not cause systemic toxicity. CONCLUSION These findings supported the radiosensitizing activity of ABT-737 in preclinical models, and suggested that clinical trials using this strategy may be beneficial in K-ras mutant NSCLC.
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Affiliation(s)
- Jung Mo Lee
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Hey Soo Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Arum Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Yoon Soo Chang
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Jin Gu Lee
- Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Jaeho Cho
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Korea
| | - Eun Young Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
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Alam M, Ali S, Mohammad T, Hasan GM, Yadav DK, Hassan MI. B Cell Lymphoma 2: A Potential Therapeutic Target for Cancer Therapy. Int J Mol Sci 2021; 22:ijms221910442. [PMID: 34638779 PMCID: PMC8509036 DOI: 10.3390/ijms221910442] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 09/15/2021] [Accepted: 09/23/2021] [Indexed: 12/13/2022] Open
Abstract
Defects in the apoptosis mechanism stimulate cancer cell growth and survival. B cell lymphoma 2 (Bcl-2) is an anti-apoptotic molecule that plays a central role in apoptosis. Bcl-2 is the founding constituent of the Bcl-2 protein family of apoptosis controllers, the primary apoptosis regulators linked with cancer. Bcl-2 has been identified as being over-expressed in several cancers. Bcl-2 is induced by protein kinases and several signaling molecules which stimulate cancer development. Identifying the important function played by Bcl-2 in cancer progression and development, and treatment made it a target related to therapy for multiple cancers. Among the various strategies that have been proposed to block Bcl-2, BH3-mimetics have appeared as a novel group of compounds thanks to their favorable effects on many cancers within several clinical settings. Because of the fundamental function of Bcl-2 in the regulation of apoptosis, the Bcl-2 protein is a potent target for the development of novel anti-tumor treatments. Bcl-2 inhibitors have been used against several cancers and provide a pre-clinical platform for testing novel therapeutic drugs. Clinical trials of multiple investigational agents targeting Bcl-2 are ongoing. This review discusses the role of Bcl-2 in cancer development; it could be exploited as a potential target for developing novel therapeutic strategies to combat various types of cancers. We further highlight the therapeutic activity of Bcl-2 inhibitors and their implications for the therapeutic management of cancer.
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Affiliation(s)
- Manzar Alam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India; (M.A.); (S.A.); (T.M.)
| | - Sabeeha Ali
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India; (M.A.); (S.A.); (T.M.)
| | - Taj Mohammad
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India; (M.A.); (S.A.); (T.M.)
| | - Gulam Mustafa Hasan
- Department of Biochemistry, College of Medicine, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;
| | - Dharmendra Kumar Yadav
- Department of Pharmacy and Gachon Institute of Pharmaceutical Science, College of Pharmacy, Gachon University, Hambakmoeiro 191, Yeonsu-gu, Incheon 21924, Korea
- Correspondence: (D.K.Y.); (M.I.H.)
| | - Md. Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India; (M.A.); (S.A.); (T.M.)
- Correspondence: (D.K.Y.); (M.I.H.)
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Ritter V, Krautter F, Klein D, Jendrossek V, Rudner J. Bcl-2/Bcl-xL inhibitor ABT-263 overcomes hypoxia-driven radioresistence and improves radiotherapy. Cell Death Dis 2021; 12:694. [PMID: 34257274 PMCID: PMC8277842 DOI: 10.1038/s41419-021-03971-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 02/06/2023]
Abstract
Hypoxia, a characteristic of most human solid tumors, is a major obstacle to successful radiotherapy. While moderate acute hypoxia increases cell survival, chronic cycling hypoxia triggers adaptation processes, leading to the clonal selection of hypoxia-tolerant, apoptosis-resistant cancer cells. Our results demonstrate that exposure to acute and adaptation to chronic cycling hypoxia alters the balance of Bcl-2 family proteins in favor of anti-apoptotic family members, thereby elevating the apoptotic threshold and attenuating the success of radiotherapy. Of note, inhibition of Bcl-2 and Bcl-xL by BH3-mimetic ABT-263 enhanced the sensitivity of HCT116 colon cancer and NCI-H460 lung cancer cells to the cytotoxic action of ionizing radiation. Importantly, we observed this effect not only in normoxia, but also in severe hypoxia to a similar or even higher extent. ABT-263 furthermore enhanced the response of xenograft tumors of control and hypoxia-selected NCI-H460 cells to radiotherapy, thereby confirming the beneficial effect of combined treatment in vivo. Targeting the Bcl-2 rheostat with ABT-263, therefore, is a particularly promising approach to overcome radioresistance of cancer cells exposed to acute or chronic hypoxia with intermittent reoxygenation. Moreover, we found intrinsic as well as ABT-263- and irradiation-induced regulation of Bcl-2 family members to determine therapy sensitivity. In this context, we identified Mcl-1 as a resistance factor that interfered with apoptosis induction by ABT-263, ionizing radiation, and combinatorial treatment. Collectively, our findings provide novel insights into the molecular determinants of hypoxia-mediated resistance to apoptosis and radiotherapy and a rationale for future therapies of hypoxic and hypoxia-selected tumor cell fractions.
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Affiliation(s)
- Violetta Ritter
- Institute for Cell Biology (Cancer Research), University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Franziska Krautter
- Institute for Cell Biology (Cancer Research), University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Diana Klein
- Institute for Cell Biology (Cancer Research), University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Verena Jendrossek
- Institute for Cell Biology (Cancer Research), University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Justine Rudner
- Institute for Cell Biology (Cancer Research), University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
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Bos T, Ratti JA, Harada H. Targeting Stress-Response Pathways and Therapeutic Resistance in Head and Neck Cancer. FRONTIERS IN ORAL HEALTH 2021; 2:676643. [PMID: 35048023 PMCID: PMC8757684 DOI: 10.3389/froh.2021.676643] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 05/28/2021] [Indexed: 12/21/2022] Open
Abstract
Head and neck cancer is the sixth leading cancer worldwide; head and neck squamous cell carcinoma (HNSCC) accounts for more than 90% of incident cases. In the US, cases of HNSCC associated with human papillomavirus (HPV) have been growing in proportion amongst a younger demographic with superior outcomes to the same treatments, relative to cases associated with tobacco. Yet failures to improve the long-term prognosis of advanced HNSCC over the last three decades persist in part due to intrinsic and acquired mechanisms of resistance. Deregulation of the pathways to respond to stress, such as apoptosis and autophagy, often contributes to drug resistance and tumor progression. Here we review the stress-response pathways in drug response and resistance in HNSCC to explore strategies to overcome these resistance mechanisms. We focus on the mechanisms of resistance to current standard cares, such as chemotherapy (i.e., cisplatin), radiation, and cetuximab. Then, we discuss the strategies to overcome these resistances, including novel combinations and immunotherapy.
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Affiliation(s)
| | | | - Hisashi Harada
- School of Dentistry, Philips Institute for Oral Health Research, Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, United States
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Verticillin A increases the BIM EL/MCL-1 ratio to overcome ABT-737-resistance in human colon cancer cells by targeting the MEK/ERK pathway. Biochem Biophys Res Commun 2021; 567:22-28. [PMID: 34133998 DOI: 10.1016/j.bbrc.2021.05.103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 05/31/2021] [Indexed: 12/11/2022]
Abstract
ABT-737, a small molecule BH-3 mimetic, is less effective against human colon cancers due to its resistance. Verticillin A is a natural compound, which was previously purified from verticillium-infected mushrooms. Hence, we aimed at overcoming the ABT737 resistance observed in CRC tumors by combining Verticillin A with ABT-737 and figuring out the potential mechanism. In this study, we observed that Verticillin A could sensitize colon cancer to ABT-737-induced cell death through induction of mitochondrial-dependent apoptosis. Verticillin A could significantly increase the BIMEL/MCL-1 ratio to overcome ABT737 resistance through the suppression of the MEK/ERK pathway. In addition, up-regulation of BIM protein levels to activate BAX translocation results in apoptosis induction. Altogether, our work suggested the potential application of Verticillin A as a MEK inhibitor in BH3-mimetic-based therapy.
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Guy JB, Espenel S, Louati S, Gauthier A, Garcia MA, Vial N, Malésys C, Ardail D, Alphonse G, Wozny AS, Rodriguez-Lafrasse C, Magné N. Combining radiation to EGFR and Bcl-2 blockade: a new approach to target cancer stem cells in head and neck squamous cell carcinoma. J Cancer Res Clin Oncol 2021; 147:1905-1916. [PMID: 33791846 DOI: 10.1007/s00432-021-03593-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 03/09/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE The clinical outcome of head and neck squamous cell carcinoma (HNSCC) remains poor, partly due to the presence of resistant cancer stem cells (CSCs) which are responsible of recurrences. CSCs have low EGFR expression and, conversely, overexpress the anti-apoptotic Bcl-2 protein, which is involved in resistance to apoptosis and the invasion/migration capacities of tumour cells. METHODS The combination therapy of ABT-199, a Bcl-2 inhibitor, cetuximab an EGFR inhibitor, and radiation using an HNSCC model (SQ20B cell line) and its corresponding CSC subpopulation were evaluated in vitro (2D/3D cell proliferation; invasion/migration and apoptosis using videomicroscopy) and in vivo. RESULTS Cetuximab strongly inhibited 2D and 3D cell proliferation, as well as invasion/migration, only in non-CSC-SQ20B cells, whereas ABT-199 selectively inhibited these mechanisms in SQ20B/CSCs. The combination of irradiation + cetuximab + ABT-199 increased the inhibition of the 2D and 3D cell proliferation, invasion/migration, and resistance to apoptosis in both cell sub-populations. In addition, in a nude mouse model with heterotopic tumour xenograft, a treatment combining cetuximab + ABT-199 with fractional irradiation strongly delayed the tumour growth and increased in vivo lifespan without side effects. CONCLUSION Based on the present results, this triple combination therapy may represent a new opportunity for testing in clinical trials, particularly in locally advanced HNSCC.
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Affiliation(s)
- Jean-Baptiste Guy
- Faculté de Médecine-Lyon-Sud, Université Lyon 1, 69921, Oullins, France.
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon Sud, CNRS UMR 5822 IP2I, 165 Chemin du Grand Revoyet, BP 12, 69921, Oullins Cedex, France.
- Département de Radiothérapie, Institut de Cancérologie de La Loire, Lucien Neuwirth, 42270, St Priest en Jarez, France.
| | - Sophie Espenel
- Faculté de Médecine-Lyon-Sud, Université Lyon 1, 69921, Oullins, France
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon Sud, CNRS UMR 5822 IP2I, 165 Chemin du Grand Revoyet, BP 12, 69921, Oullins Cedex, France
- Département de Radiothérapie, Institut de Cancérologie de La Loire, Lucien Neuwirth, 42270, St Priest en Jarez, France
| | - Safa Louati
- Faculté de Médecine-Lyon-Sud, Université Lyon 1, 69921, Oullins, France
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon Sud, CNRS UMR 5822 IP2I, 165 Chemin du Grand Revoyet, BP 12, 69921, Oullins Cedex, France
- Département de Radiothérapie, Institut de Cancérologie de La Loire, Lucien Neuwirth, 42270, St Priest en Jarez, France
| | - Arnaud Gauthier
- Faculté de Médecine-Lyon-Sud, Université Lyon 1, 69921, Oullins, France
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon Sud, CNRS UMR 5822 IP2I, 165 Chemin du Grand Revoyet, BP 12, 69921, Oullins Cedex, France
- Hospices Civils de Lyon, 69229, Lyon, France
| | - Max-Adrien Garcia
- Département de Santé Publique, Institut de Cancérologie de La Loire, Lucien Neuwirth, 42270, St Priest en Jarez, France
| | - Nicolas Vial
- Département de Radiothérapie, Institut de Cancérologie de La Loire, Lucien Neuwirth, 42270, St Priest en Jarez, France
| | - Céline Malésys
- Faculté de Médecine-Lyon-Sud, Université Lyon 1, 69921, Oullins, France
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon Sud, CNRS UMR 5822 IP2I, 165 Chemin du Grand Revoyet, BP 12, 69921, Oullins Cedex, France
| | - Dominique Ardail
- Faculté de Médecine-Lyon-Sud, Université Lyon 1, 69921, Oullins, France
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon Sud, CNRS UMR 5822 IP2I, 165 Chemin du Grand Revoyet, BP 12, 69921, Oullins Cedex, France
- Hospices Civils de Lyon, 69229, Lyon, France
| | - Gersende Alphonse
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon Sud, CNRS UMR 5822 IP2I, 165 Chemin du Grand Revoyet, BP 12, 69921, Oullins Cedex, France
- Hospices Civils de Lyon, 69229, Lyon, France
| | - Anne-Sophie Wozny
- Faculté de Médecine-Lyon-Sud, Université Lyon 1, 69921, Oullins, France
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon Sud, CNRS UMR 5822 IP2I, 165 Chemin du Grand Revoyet, BP 12, 69921, Oullins Cedex, France
- Hospices Civils de Lyon, 69229, Lyon, France
| | - Claire Rodriguez-Lafrasse
- Faculté de Médecine-Lyon-Sud, Université Lyon 1, 69921, Oullins, France
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon Sud, CNRS UMR 5822 IP2I, 165 Chemin du Grand Revoyet, BP 12, 69921, Oullins Cedex, France
- Hospices Civils de Lyon, 69229, Lyon, France
| | - Nicolas Magné
- Laboratoire de Radiobiologie Cellulaire et Moléculaire, Faculté de Médecine Lyon Sud, CNRS UMR 5822 IP2I, 165 Chemin du Grand Revoyet, BP 12, 69921, Oullins Cedex, France
- Département de Radiothérapie, Institut de Cancérologie de La Loire, Lucien Neuwirth, 42270, St Priest en Jarez, France
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12
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Carter RJ, Milani M, Butterworth M, Alotibi A, Harper N, Yedida G, Greaves G, Al-Zebeeby A, Jorgensen AL, Schache AG, Risk JM, Shaw RJ, Jones TM, Sacco JJ, Hurlstone A, Cohen GM, Varadarajan S. Exploring the potential of BH3 mimetic therapy in squamous cell carcinoma of the head and neck. Cell Death Dis 2019; 10:912. [PMID: 31801952 PMCID: PMC6892862 DOI: 10.1038/s41419-019-2150-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/16/2019] [Accepted: 10/31/2019] [Indexed: 01/14/2023]
Abstract
Squamous cell carcinoma of the head and neck (SCCHN) is the sixth most common cancer worldwide, with overall survival of less than 50%. Current therapeutic strategies involving a combination of surgery, radiation, and/or chemotherapy are associated with debilitating side effects, highlighting the need for more specific and efficacious therapies. Inhibitors of BCL-2 family proteins (BH3 mimetics) are under investigation or in clinical practice for several hematological malignancies and show promise in solid tumors. In order to explore the therapeutic potential of BH3 mimetics in the treatment of SCCHN, we assessed the expression levels of BCL-2, BCL-XL, and MCL-1 via Western blots and immunohistochemistry, in cell lines, primary cells derived from SCCHN patients and in tissue microarrays containing tumor tissue from a cohort of 191 SCCHN patients. All preclinical models exhibited moderate to high levels of BCL-XL and MCL-1, with little or no BCL-2. Although expression levels of BCL-XL and MCL-1 did not correlate with patient outcome, a combination of BH3 mimetics to target these proteins resulted in decreased clonogenic potential and enhanced apoptosis in all preclinical models, including tumor tissue resected from patients, as well as a reduction of tumor volume in a zebrafish xenograft model of SCCHN. Our results show that SCCHN is dependent on both BCL-XL and MCL-1 for apoptosis evasion and combination therapy targeting both proteins may offer significant therapeutic benefits in this disease.
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Affiliation(s)
- Rachel J Carter
- Liverpool Head and Neck Centre, Liverpool, L69 3GE, UK.,Department of Molecular and Clinical Cancer Medicine, Liverpool, L69 3GE, UK
| | - Mateus Milani
- Department of Molecular and Clinical Cancer Medicine, Liverpool, L69 3GE, UK
| | - Michael Butterworth
- Department of Molecular and Clinical Cancer Medicine, Liverpool, L69 3GE, UK
| | - Ahoud Alotibi
- Department of Molecular and Clinical Cancer Medicine, Liverpool, L69 3GE, UK
| | - Nicholas Harper
- Department of Molecular and Clinical Pharmacology, Liverpool, L69 3GE, UK
| | - Govindaraju Yedida
- Department of Molecular and Clinical Cancer Medicine, Liverpool, L69 3GE, UK
| | - Georgia Greaves
- Department of Molecular and Clinical Cancer Medicine, Liverpool, L69 3GE, UK
| | - Aoula Al-Zebeeby
- Department of Molecular and Clinical Cancer Medicine, Liverpool, L69 3GE, UK
| | - Andrea L Jorgensen
- Department of Biostatistics, University of Liverpool, Liverpool, L69 3GE, UK
| | | | - Janet M Risk
- Liverpool Head and Neck Centre, Liverpool, L69 3GE, UK
| | | | - Terry M Jones
- Liverpool Head and Neck Centre, Liverpool, L69 3GE, UK
| | | | - Adam Hurlstone
- Faculty of Biology, Medicine and Health, Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, M13 9PT, UK
| | - Gerald M Cohen
- Liverpool Head and Neck Centre, Liverpool, L69 3GE, UK.,Department of Molecular and Clinical Cancer Medicine, Liverpool, L69 3GE, UK.,Department of Molecular and Clinical Pharmacology, Liverpool, L69 3GE, UK
| | - Shankar Varadarajan
- Liverpool Head and Neck Centre, Liverpool, L69 3GE, UK. .,Department of Molecular and Clinical Cancer Medicine, Liverpool, L69 3GE, UK. .,Department of Molecular and Clinical Pharmacology, Liverpool, L69 3GE, UK.
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13
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Abstract
Apoptosis is a highly conserved programme for removing damaged and unwanted cells. Apoptosis in most cells is coordinated on mitochondria by the Bcl-2 family of proteins. The balance between pro- and anti-apoptotic Bcl-2 family proteins sets a threshold for mitochondrial apoptosis, a balance that is altered during cancer progression. Consequently, avoidance of cell death is an established cancer hallmark. Although there is a general perception that tumour cells are more resistant to apoptosis than their normal counterparts, the realities of cell death regulation in cancer are more nuanced. In this review we discuss how a profound understanding of this control has led to new therapeutic approaches, including the new class of BH3-mimetics, which directly target apoptosis as a vulnerability in cancer. We discuss recent findings that highlight the current limitations in our understanding of apoptosis and how these novel therapeutics work.
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Affiliation(s)
- Andrew Gilmore
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Louise King
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
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14
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Shen HP, Wu WJ, Ko JL, Wu TF, Yang SF, Wu CH, Yeh CM, Wang PH. Effects of ABT-737 combined with irradiation treatment on uterine cervical cancer cells. Oncol Lett 2019; 18:4328-4336. [PMID: 31579427 DOI: 10.3892/ol.2019.10755] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 04/24/2019] [Indexed: 01/30/2023] Open
Abstract
The aim of the present study was to examine the role of ABT-737, an inhibitor of B-cell lymphoma 2 (Bcl-2), in enhancing the effect of irradiation on uterine cervical cancer. Based on The Cancer Genomic Atlas (TCGA), Bcl-2 mRNA expression was associated with the Tumor-Node-Metastasis stage of cervical cancer. Therefore, it was hypothesized that Bcl-2 inhibition may decrease the progression of cervical cancer. ABT-737 was added to irradiation treatment to evaluate its effectiveness in inhibiting cancer cell progression. SiHa and CaSki cervical cancer cells were selected for in vitro assays. Patients with advanced stage III uterine cancer had slightly increased mRNA expression levels of Bcl-2 compared with patients with stage I cancer, although the difference was not significant. ABT-737 and radiation administration induced a synergistic cytotoxic effect based on the MTT assay and flow cytometry results, where an increase in apoptosis was observed. The apoptotic percentages were significantly increased in the cells treated with a combination of ABT-737 and irradiation. Loss of mitochondrial membrane potential and gain of reactive oxygen species (ROS) were detected by flow cytometry in CaSki and SiHa cells treated with ABT-737 and radiation. Additionally, the protein expression levels of the cleaved forms of poly ADP ribose polymerase and caspase-7 were increased following the combined treatment. In conclusion, ABT-737 and irradiation may induce apoptosis via loss of mitochondrial membrane potential and a ROS-dependent apoptotic pathway in CaSki and SiHa cells. The present study indicates that ABT-737 may be a potential irradiation adjuvant when treating cervical cancer.
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Affiliation(s)
- Huang-Pin Shen
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan, R.O.C.,Department of Obstetrics and Gynecology, Chung Shan Medical University Hospital, Taichung 402, Taiwan, R.O.C.,School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan, R.O.C
| | - Wen-Jun Wu
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan, R.O.C
| | - Jiunn-Liang Ko
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan, R.O.C
| | - Tzu-Fan Wu
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan, R.O.C
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan, R.O.C.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung 402, Taiwan, R.O.C
| | - Chih-Hsien Wu
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan, R.O.C
| | - Chia-Ming Yeh
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan, R.O.C
| | - Po-Hui Wang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan, R.O.C.,Department of Obstetrics and Gynecology, Chung Shan Medical University Hospital, Taichung 402, Taiwan, R.O.C.,School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan, R.O.C
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15
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Fouani L, Kovacevic Z, Richardson DR. Targeting Oncogenic Nuclear Factor Kappa B Signaling with Redox-Active Agents for Cancer Treatment. Antioxid Redox Signal 2019; 30:1096-1123. [PMID: 29161883 DOI: 10.1089/ars.2017.7387] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
SIGNIFICANCE Nuclear factor kappa B (NF-κB) signaling is essential under physiologically relevant conditions. However, aberrant activation of this pathway plays a pertinent role in tumorigenesis and contributes to resistance. Recent Advances: The importance of the NF-κB pathway means that its targeting must be specific to avoid side effects. For many currently used therapeutics and those under development, the ability to generate reactive oxygen species (ROS) is a promising strategy. CRITICAL ISSUES As cancer cells exhibit greater ROS levels than their normal counterparts, they are more sensitive to additional ROS, which may be a potential therapeutic niche. It is known that ROS are involved in (i) the activation of NF-κB signaling, when in sublethal amounts; and (ii) high levels induce cytotoxicity resulting in apoptosis. Indeed, ROS-induced cytotoxicity is valuable for its capabilities in killing cancer cells, but establishing the potency of ROS for effective inhibition of NF-κB signaling is necessary. Indeed, some cancer treatments, currently used, activate NF-κB and may stimulate oncogenesis and confer resistance. FUTURE DIRECTIONS Thus, combinatorial approaches using ROS-generating agents alongside conventional therapeutics may prove an effective tactic to reduce NF-κB activity to kill cancer cells. One strategy is the use of thiosemicarbazones, which form redox-active metal complexes that generate high ROS levels to deliver potent antitumor activity. These agents also upregulate the metastasis suppressor, N-myc downstream regulated gene 1 (NDRG1), which functions as an NF-κB signaling inhibitor. It is proposed that targeting NF-κB signaling may proffer a new therapeutic niche to improve the efficacy of anticancer regimens.
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Affiliation(s)
- Leyla Fouani
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, Australia
| | - Zaklina Kovacevic
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, Australia
| | - Des R Richardson
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, Australia
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16
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Pharmacological targeting of mitochondria in cancer stem cells: An ancient organelle at the crossroad of novel anti-cancer therapies. Pharmacol Res 2019; 139:298-313. [DOI: 10.1016/j.phrs.2018.11.020] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 11/13/2018] [Accepted: 11/13/2018] [Indexed: 02/07/2023]
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Kolenda T, Przybyła W, Kapałczyńska M, Teresiak A, Zajączkowska M, Bliźniak R, Lamperska KM. Tumor microenvironment - Unknown niche with powerful therapeutic potential. Rep Pract Oncol Radiother 2018; 23:143-153. [PMID: 29760589 PMCID: PMC5948324 DOI: 10.1016/j.rpor.2018.01.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 11/20/2017] [Accepted: 01/20/2018] [Indexed: 12/25/2022] Open
Abstract
Head and neck squamous cell carcinomas (HNSCC) are in a group of cancers that are the most resistant to treatment. The survival rate of HNSCC patients has been still very low since last 20 years. The existence of relationship between oncogenic and surrounding cells is probably the reason for a poor response to treatment. Fibroblasts are an important element of tumor stroma which increases tumor cells ability to proliferate. Another highly resistance, tumorigenic and metastatic cell population in tumor microenvironment are cancer initiating cells (CICs). The population of cancer initiating cells can be found regardless of differentiation status of cancer and they seem to be crucial for HNSCC development. In this review, we describe the current state of knowledge about HNSCC biological and physiological tumor microenvironment.
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Affiliation(s)
- Tomasz Kolenda
- Laboratory of Cancer Genetic, Greater Poland Cancer Centre, Poznan, Poland
- Postgraduate School of Molecular Medicine, Medical University of Warsaw, Poland
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, Poznan, Poland
| | - Weronika Przybyła
- Laboratory of Cancer Genetic, Greater Poland Cancer Centre, Poznan, Poland
- Department of Pediatric Research, Division of Pediatric and Adolescent Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Marta Kapałczyńska
- Laboratory of Cancer Genetic, Greater Poland Cancer Centre, Poznan, Poland
- Department of Gastroenterology and Hepatology, Charite University Medicine Berlin, Berlin, Germany
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Anna Teresiak
- Laboratory of Cancer Genetic, Greater Poland Cancer Centre, Poznan, Poland
| | - Maria Zajączkowska
- Laboratory of Cancer Genetic, Greater Poland Cancer Centre, Poznan, Poland
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, Poznan, Poland
| | - Renata Bliźniak
- Laboratory of Cancer Genetic, Greater Poland Cancer Centre, Poznan, Poland
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18
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Loureiro R, Mesquita KA, Magalhães-Novais S, Oliveira PJ, Vega-Naredo I. Mitochondrial biology in cancer stem cells. Semin Cancer Biol 2017; 47:18-28. [DOI: 10.1016/j.semcancer.2017.06.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 06/24/2017] [Accepted: 06/27/2017] [Indexed: 02/06/2023]
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19
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Coppes R, Dubrovska A. Targeting Stem Cells in Radiation Oncology. Clin Oncol (R Coll Radiol) 2017; 29:329-334. [DOI: 10.1016/j.clon.2017.03.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 03/07/2017] [Indexed: 12/18/2022]
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20
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Opydo-Chanek M, Gonzalo O, Marzo I. Multifaceted anticancer activity of BH3 mimetics: Current evidence and future prospects. Biochem Pharmacol 2017; 136:12-23. [PMID: 28288819 DOI: 10.1016/j.bcp.2017.03.006] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 03/06/2017] [Indexed: 12/19/2022]
Abstract
BH3 mimetics are a novel class of anticancer agents designed to specifically target pro-survival proteins of the Bcl-2 family. Like endogenous BH3-only proteins, BH3 mimetics competitively bind to surface hydrophobic grooves of pro-survival Bcl-2 family members, counteracting their protective effects and thus facilitating apoptosis in cancer cells. Among the small-molecule BH3 mimetics identified, ABT-737 and its analogs, obatoclax as well as gossypol derivatives are the best characterized. The anticancer potential of these compounds applied as a single agent or in combination with chemotherapeutic drugs is currently being evaluated in preclinical studies and in clinical trials. In spite of promising results, the actual mechanisms of their anticancer action remain to be identified. Findings from preclinical studies point to additional activities of BH3 mimetics in cancer cells that are not connected with apoptosis induction. These off-target effects involve induction of autophagy and necrotic cell death as well as modulation of the cell cycle and multiple cell signaling pathways. For the optimization and clinical implementation of BH3 mimetics, a detailed understanding of their role as inhibitors of the pro-survival Bcl-2 proteins, but also of their possible additional effects is required. This review summarizes the most representative BH3 mimetic compounds with emphasis on their off-target effects. Based on the present knowledge on the multifaceted effects of BH3 mimetics on cancer cells, the commentary outlines the potential pitfalls and highlights the considerable promise for cancer treatment with BH3 mimetics.
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Affiliation(s)
- Małgorzata Opydo-Chanek
- Department of Experimental Hematology, Institute of Zoology, Jagiellonian University in Kraków, Poland.
| | - Oscar Gonzalo
- Department of Biochemistry, Molecular and Cell Biology, IIS, University of Zaragoza, Spain
| | - Isabel Marzo
- Department of Biochemistry, Molecular and Cell Biology, IIS, University of Zaragoza, Spain
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21
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Alam M, Kashyap T, Pramanik KK, Singh AK, Nagini S, Mishra R. The elevated activation of NFκB and AP-1 is correlated with differential regulation of Bcl-2 and associated with oral squamous cell carcinoma progression and resistance. Clin Oral Investig 2017; 21:2721-2731. [PMID: 28233171 DOI: 10.1007/s00784-017-2074-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 02/07/2017] [Indexed: 01/11/2023]
Abstract
OBJECTIVES Oral cancer is the sixth most common cancer in the world. Failure of chemoradiation therapy is a major concern for treating oral cancer patients. The objective of this study is to determine the B cell lymphoma-2 (bcl-2) expression and its regulation by nuclear factor κB (NFκB) and activator protein 1 (AP-1) in oral cancer progression and chemoradiation resistance. MATERIALS AND METHODS In the present study, a total of 123 (n = 123) human samples were included. Briefly, 64 fresh samples were from adjacent normal (AN), primary oral tumors without treatment (PT), and tumors with resistance to chemoradiation therapy with local recurrence (RCRT). Fifty-nine samples were human tongue cancers and normal samples (TMA). Messenger RNA (mRNA) expression levels of bcl-2 and protein levels of bcl-2, NFκB, AP-1, and inactive GSK3α/β were measured by semiquantitative RT-PCR, immunohistochemistry, Western blot, and ChIP analysis. RESULTS Increased bcl-2 expression was observed in PT compared to AN. The RCRT tumors showed maximum expression of bcl-2 mRNA and protein over the PT and AN groups. Bcl-2 protein and mRNA expression were positively correlated with NFκB and AP-1 expression. AP-1 expression was strongly correlated with bcl-2 in the RCRT group of tumors. Further, inactive GSK3α/β showed a positive trend with bcl-2 expression in oral tongue cancer specimens. CONCLUSION Collectively, our results demonstrated cumulative effect of AP-1 and NFĸB for bcl-2 gene regulation in overall PT progression and chemoradiation resistance. The study provides evidence of increased bcl-2 mRNA/protein fueled by NFĸB in PT and AP-1 in RCRT. These regulations of bcl-2 by NFκB and AP-1 are important in OSCC progression and chemoradiation resistance.
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Affiliation(s)
- Manzar Alam
- Centre for Life Sciences, School of Natural Sciences, Central University of Jharkhand, Ratu-Lohardaga Road, Brambe Ranchi, Jharkhand, 835205, India
| | - Tanushree Kashyap
- Centre for Life Sciences, School of Natural Sciences, Central University of Jharkhand, Ratu-Lohardaga Road, Brambe Ranchi, Jharkhand, 835205, India
| | - Kamdeo K Pramanik
- Centre for Life Sciences, School of Natural Sciences, Central University of Jharkhand, Ratu-Lohardaga Road, Brambe Ranchi, Jharkhand, 835205, India
| | - Abhay K Singh
- Centre for Life Sciences, School of Natural Sciences, Central University of Jharkhand, Ratu-Lohardaga Road, Brambe Ranchi, Jharkhand, 835205, India
| | - Siddavaram Nagini
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu, 608 002, India
| | - Rajakishore Mishra
- Centre for Life Sciences, School of Natural Sciences, Central University of Jharkhand, Ratu-Lohardaga Road, Brambe Ranchi, Jharkhand, 835205, India.
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22
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Vallard A, Espenel S, Guy JB, Diao P, Xia Y, El Meddeb Hamrouni A, Ben Mrad M, Falk AT, Rodriguez-Lafrasse C, Rancoule C, Magné N. Targeting stem cells by radiation: From the biological angle to clinical aspects. World J Stem Cells 2016; 8:243-250. [PMID: 27621758 PMCID: PMC4999651 DOI: 10.4252/wjsc.v8.i8.243] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 06/18/2016] [Accepted: 07/13/2016] [Indexed: 02/06/2023] Open
Abstract
Radiotherapy is a cornerstone of anticancer treatment. However in spite of technical evolutions, important rates of failure and of toxicity are still reported. Although numerous pre-clinical data have been published, we address the subject of radiotherapy-stem cells interaction from the clinical efficacy and toxicity perspective. On one side, cancer stem cells (CSCs) have been recently evidenced in most of solid tumor primary locations and are thought to drive radio-resistance phenomena. It is particularly suggested in glioblastoma, where CSCs were showed to be housed in the subventricular zone (SVZ). In recent retrospective studies, the radiation dose to SVZ was identified as an independent factor significantly influencing overall survival. On the other side, healthy tissue stem cells radio-destruction has been recently suggested to cause two of the most quality of life-impacting side effects of radiotherapy, namely memory disorders after brain radiotherapy, and xerostomia after head and neck radiotherapy. Recent publications studying the impact of a radiation dose decrease on healthy brain and salivary stem cells niches suggested significantly reduced long term toxicities. Stem cells comprehension should be a high priority for radiation oncologists, as this particular cell population seems able to widely modulate the efficacy/toxicity ratio of radiotherapy in real life patients.
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