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Zhang Y, Li N, Li R, Gu Y, Liu X, Zhang S. Predicting survival for patients with mesothelioma: development of the PLACE prognostic model. BMC Cancer 2023; 23:698. [PMID: 37495975 PMCID: PMC10369846 DOI: 10.1186/s12885-023-11180-y] [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: 08/03/2022] [Accepted: 07/13/2023] [Indexed: 07/28/2023] Open
Abstract
INTRODUCTION The overall survival of patients with mesothelioma is poor and heterogeneous. At present, the prediction model for Chinese patients needs to be improved. We sought to investigate predictors of survival in malignant pleural mesothelioma and develop prognostic prediction models. METHODS This Two-center retrospective cohort study recruited patients with pathologically diagnosed mesothelioma at Beijing Chao-Yang Hospital and Beijing Tong-Ren Hospital. We developed a new prognostic prediction model based on COX multivariable analysis using data from patients who were recruited from June 1, 2010 to July 1, 2021 in Beijing Chao-Yang Hospital (n = 95, development cohort) and validated this model using data from patients recruited from July 18, 2014 to May 9, 2022 in Beijing Tong-Ren Hospital (n = 23, validation cohort). Receiver operating characteristic analysis was used to estimate model accuracy. RESULTS The parameters in this new model included PLT > 289.5(10^9/L) (1 point), Lymphocyte > 1.785(10^9/L) (-1point), Age > 73 years old (1 point), Calcium > 2.145(mmol/L) (-1point), Eastern Cooperative Oncology Group performance status (ECOG PS) > 2 (2 points). When the sum of scores < 0, it is recognized as a low-risk group; when the score is 0 ~ 3, it is recognized as a high-risk group. The survival rate of patients in the high-risk group was significantly lower than that in the low-risk group (hazard ratio [HR], 3.878; 95% confidence interval [CI], 2.226-6.755; P < 0.001). The validation group had similar results (HR,3.574; 95%CI,1.064-12.001; P = 0.039). Furthermore, the areas under the curve 6 months after diagnosis in the two cohorts were 0.900 (95% CI: 0.839-0.962) and 0.761 (95% CI: 0.568-0.954) for development and validation cohorts, respectively. CONCLUSION We developed a simple, clinically relevant prognostic prediction model for PLACE by evaluating five variables routinely tested at the time of diagnosis. The predictive model can differentiate patients of Chinese ethnicity into different risk groups and further guide prognosis.
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Affiliation(s)
- Yuan Zhang
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, 8 Gongtinan Rd, Chaoyang District, Beijing, 100020, China
- Department of Pulmonary and Critical Care Medicine, Beijing Hospital, Institute of Geriatric Medicine, National Center of Gerontology, Chinese Academy of Medical Sciences, Beijing, 100005, China
| | - Nan Li
- Department of Radiology, Beijing Chao-Yang Hospital, Capital Medical University, 8 Gongtinan Rd, Chaoyang District, Beijing, 100020, China
| | - Ran Li
- Department of Respiratory and Critical Medicine, Beijing Tongren Hospital, Capital Medical University, Beijing, 100005, China
| | - Yumei Gu
- Department of Pathology, Beijing Chao-Yang Hospital , Capital Medical University, 8 Gongtinan Rd, Chaoyang District, Beijing, 100020, China
| | - Xiaofang Liu
- Department of Respiratory and Critical Medicine, Beijing Tongren Hospital, Capital Medical University, Beijing, 100005, China
| | - Shu Zhang
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, 8 Gongtinan Rd, Chaoyang District, Beijing, 100020, China.
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Zhang J, Han H, Wang L, Wang W, Yang M, Qin Y. Overcoming the therapeutic resistance of hepatomas by targeting the tumor microenvironment. Front Oncol 2022; 12:988956. [DOI: 10.3389/fonc.2022.988956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 11/01/2022] [Indexed: 11/16/2022] Open
Abstract
Hepatocellular carcinoma (HCC) accounts for the majority of primary liver cancers and is the third leading cause of cancer-related mortality worldwide. Multifactorial drug resistance is regarded as the major cause of treatment failure in HCC. Accumulating evidence shows that the constituents of the tumor microenvironment (TME), including cancer-associated fibroblasts, tumor vasculature, immune cells, physical factors, cytokines, and exosomes may explain the therapeutic resistance mechanisms in HCC. In recent years, anti-angiogenic drugs and immune checkpoint inhibitors have shown satisfactory results in HCC patients. However, due to enhanced communication between the tumor and TME, the effect of heterogeneity of the microenvironment on therapeutic resistance is particularly complicated, which suggests a more challenging research direction. In addition, it has been reported that the three-dimensional (3D) organoid model derived from patient biopsies is more intuitive to fully understand the role of the TME in acquired resistance. Therefore, in this review, we have focused not only on the mechanisms and targets of therapeutic resistance related to the contents of the TME in HCC but also provide a comprehensive description of 3D models and how they contribute to the exploration of HCC therapies.
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Qiu H, Shao Z, Wen X, Jiang J, Ma Q, Wang Y, Huang L, Ding X, Zhang L. TREM2: Keeping Pace With Immune Checkpoint Inhibitors in Cancer Immunotherapy. Front Immunol 2021; 12:716710. [PMID: 34539652 PMCID: PMC8446424 DOI: 10.3389/fimmu.2021.716710] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/18/2021] [Indexed: 01/21/2023] Open
Abstract
To date, immune checkpoint inhibitors have been successively approved and widely used in clinical cancer treatments, however, the overall response rates are very low and almost all cancer patients eventually progressed to drug resistance, this is mainly due to the intricate tumor microenvironment and immune escape mechanisms of cancer cells. One of the main key mechanisms leading to the evasion of immune attack is the presence of the immunosuppressive microenvironment within tumors. Recently, several studies illustrated that triggering receptor expressed on myeloid cells-2 (TREM2), a transmembrane receptor of the immunoglobulin superfamily, was a crucial pathology-induced immune signaling hub, and it played a vital negative role in antitumor immunity, such as inhibiting the proliferation of T cells. Here, we reviewed the recent advances in the study of TREM2, especially focused on its regulation of tumor-related immune signaling pathways and its role as a novel target in cancer immunotherapy.
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Affiliation(s)
- Hui Qiu
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Zhiying Shao
- Cancer Institute, Xuzhou Medical University, Xuzhou, China
| | - Xin Wen
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Jinghua Jiang
- Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Qinggong Ma
- Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yan Wang
- Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Long Huang
- Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Xin Ding
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Longzhen Zhang
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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Lee S, Yamamoto S, Srinivas B, Shimizu Y, Sada N, Yoshitome K, Ito T, Kumagai-Takei N, Nishimura Y, Otsuki T. Increased production of matrix metalloproteinase-7 (MMP-7) by asbestos exposure enhances tissue migration of human regulatory T-like cells. Toxicology 2021; 452:152717. [PMID: 33581214 DOI: 10.1016/j.tox.2021.152717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 01/11/2021] [Accepted: 02/06/2021] [Indexed: 11/29/2022]
Abstract
The effects of asbestos on immunocompetent cells have been investigated. In particular, attention was paid to regulatory T cell function, which was observed using the HTLV-1 immortalized human polyclonal T cell line MT-2. Exposure to asbestos (approximately more than 25 μg/mL for 1-3 day) induced apoptosis, and we observed an increase in regulatory T cell function and acceleration of the cell cycle with continuous exposure to low concentrations of asbestos (5-10 μg/mL for more than eight months). Furthermore, cDNA microarray analysis in this study revealed that expression of matrix metalloproteinase-7 (MMP-7) was markedly higher in exposed sublines compared to original MT-2 cells. It was determined that MMP-7 had no effect on Treg function, as determined by examination of sublines and by addition of recombinant MMP-7 and neutralizing antibodies or inhibitors of MMP-7. However, when examining melting of the extracellular matrix (an MMP-7-mediated event) or the extent to which the MT-2 parent strain or long-term exposed subline cells pass through a fibronectin-coated filter, more filter passes were observed for the subline. These results suggest that the effect of asbestos fibers on Treg cells results in excessive migration of the tumor microenvironment through hypersecretion of MMP-7 together with an increase in suppressive function and enhancement of cell cycle progression. Therefore, one possible way to prevent the development of asbestos-induced cancer is to reduce the function (including MMP-7 production) or amount of Treg cells by physiologically active substances or food ingredients. Alternatively, it may be possible to invoke immune checkpoint treatments when carcinogenesis occurs.
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Affiliation(s)
- Suni Lee
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
| | - Shoko Yamamoto
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
| | - Bandaru Srinivas
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
| | - Yurika Shimizu
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan; Department of Pathophysiology-Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan.
| | - Nagisa Sada
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan; Department of Biophysical Chemistry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, 700-8530, Okayama, Japan.
| | - Kei Yoshitome
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
| | - Tatsuo Ito
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
| | - Naoko Kumagai-Takei
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
| | - Yasumitsu Nishimura
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
| | - Takemi Otsuki
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan.
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Tumor-induced neurogenesis and immune evasion as targets of innovative anti-cancer therapies. Signal Transduct Target Ther 2020; 5:99. [PMID: 32555170 PMCID: PMC7303203 DOI: 10.1038/s41392-020-0205-z] [Citation(s) in RCA: 115] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 05/15/2020] [Accepted: 05/24/2020] [Indexed: 12/11/2022] Open
Abstract
Normal cells are hijacked by cancer cells forming together heterogeneous tumor masses immersed in aberrant communication circuits that facilitate tumor growth and dissemination. Besides the well characterized angiogenic effect of some tumor-derived factors; others, such as BDNF, recruit peripheral nerves and leukocytes. The neurogenic switch, activated by tumor-derived neurotrophins and extracellular vesicles, attracts adjacent peripheral fibers (autonomic/sensorial) and neural progenitor cells. Strikingly, tumor-associated nerve fibers can guide cancer cell dissemination. Moreover, IL-1β, CCL2, PGE2, among other chemotactic factors, attract natural immunosuppressive cells, including T regulatory (Tregs), myeloid-derived suppressor cells (MDSCs), and M2 macrophages, to the tumor microenvironment. These leukocytes further exacerbate the aberrant communication circuit releasing factors with neurogenic effect. Furthermore, cancer cells directly evade immune surveillance and the antitumoral actions of natural killer cells by activating immunosuppressive mechanisms elicited by heterophilic complexes, joining cancer and immune cells, formed by PD-L1/PD1 and CD80/CTLA-4 plasma membrane proteins. Altogether, nervous and immune cells, together with fibroblasts, endothelial, and bone-marrow-derived cells, promote tumor growth and enhance the metastatic properties of cancer cells. Inspired by the demonstrated, but restricted, power of anti-angiogenic and immune cell-based therapies, preclinical studies are focusing on strategies aimed to inhibit tumor-induced neurogenesis. Here we discuss the potential of anti-neurogenesis and, considering the interplay between nervous and immune systems, we also focus on anti-immunosuppression-based therapies. Small molecules, antibodies and immune cells are being considered as therapeutic agents, aimed to prevent cancer cell communication with neurons and leukocytes, targeting chemotactic and neurotransmitter signaling pathways linked to perineural invasion and metastasis.
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Barbarino M, Cesari D, Bottaro M, Luzzi L, Namagerdi A, Bertolino FM, Bellan C, Proietti F, Somma P, Micheli M, de Santi MM, Guazzo R, Mutti L, Pirtoli L, Paladini P, Indovina P, Giordano A. PRMT5 silencing selectively affects MTAP-deleted mesothelioma: In vitro evidence of a novel promising approach. J Cell Mol Med 2020; 24:5565-5577. [PMID: 32301278 PMCID: PMC7214180 DOI: 10.1111/jcmm.15213] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 12/15/2022] Open
Abstract
Malignant mesothelioma (MM) is an aggressive asbestos‐related cancer of the serous membranes. Despite intensive treatment regimens, MM is still a fatal disease, mainly due to the intrinsic resistance to current therapies and the lack of predictive markers and new valuable molecular targets. Protein arginine methyltransferase 5 (PRMT5) inhibition has recently emerged as a potential therapy against methylthioadenosine phosphorylase (MTAP)‐deficient cancers, in which the accumulation of the substrate 5'‐methylthioadenosine (MTA) inhibits PRMT5 activity, thus sensitizing the cells to further PRMT5 inhibition. Considering that the MTAP gene is frequently codeleted with the adjacent cyclin‐dependent kinase inhibitor 2A (CDKN2A) locus in MM, we assessed whether PRMT5 could represent a therapeutic target also for this cancer type. We evaluated PRMT5 expression, the MTAP status and MTA content in normal mesothelial and MM cell lines. We found that both administration of exogenous MTA and stable PRMT5 knock‐down, by short hairpin RNAs (shRNAs), selectively reduced the growth of MTAP‐deleted MM cells. We also observed that PRMT5 knock‐down in MTAP‐deficient MM cells reduced the expression of E2F1 target genes involved in cell cycle progression and of factors implicated in epithelial‐to‐mesenchymal transition. Therefore, PRMT5 targeting could represent a promising new therapeutic strategy against MTAP‐deleted MMs.
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Affiliation(s)
- Marcella Barbarino
- Department of Medical Biotechnologies, University of Siena, Siena, Italy.,Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania
| | - Daniele Cesari
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Maria Bottaro
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Luca Luzzi
- Department of Medicine, Surgery and Neurosciences, Siena University Hospital, Siena, Italy
| | - Asadoor Namagerdi
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | | | - Cristiana Bellan
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | | | - Pasquale Somma
- Anatomy and Pathology Unit, Ospedale dei Colli, AORN, "Monaldi", Naples, Italy
| | | | | | - Raffaella Guazzo
- Department of Medicine, Surgery and Neurosciences, Siena University Hospital, Siena, Italy
| | - Luciano Mutti
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania
| | - Luigi Pirtoli
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania
| | - Piero Paladini
- Department of Medicine, Surgery and Neurosciences, Siena University Hospital, Siena, Italy
| | - Paola Indovina
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania
| | - Antonio Giordano
- Department of Medical Biotechnologies, University of Siena, Siena, Italy.,Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania
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Touhami S, Audo I, Terrada C, Gaudric A, LeHoang P, Touitou V, Bodaghi B. Neoplasia and intraocular inflammation: From masquerade syndromes to immunotherapy-induced uveitis. Prog Retin Eye Res 2019; 72:100761. [DOI: 10.1016/j.preteyeres.2019.05.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 04/16/2019] [Accepted: 05/01/2019] [Indexed: 12/18/2022]
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8
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Mutti L, Peikert T, Robinson BWS, Scherpereel A, Tsao AS, de Perrot M, Woodard GA, Jablons DM, Wiens J, Hirsch FR, Yang H, Carbone M, Thomas A, Hassan R. Scientific Advances and New Frontiers in Mesothelioma Therapeutics. J Thorac Oncol 2019; 13:1269-1283. [PMID: 29966799 DOI: 10.1016/j.jtho.2018.06.011] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 06/07/2018] [Accepted: 06/17/2018] [Indexed: 12/20/2022]
Abstract
Malignant pleural mesothelioma (MPM) is a rare and aggressive cancer that arises from the mesothelial surface of the pleural and peritoneal cavities, the pericardium, and rarely, the tunica vaginalis. The incidence of MPM is expected to increase worldwide in the next two decades. However, even with the use of multimodality treatment, MPM remains challenging to treat, with a 5-year survival rate of less than 5%. The International Association for the Study of Lung Cancer has gathered experts in different areas of mesothelioma research and management to summarize the most significant scientific advances and new frontiers related to mesothelioma therapeutics.
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Affiliation(s)
- Luciano Mutti
- School of Environment and Life Sciences, College of Science and Technology, Cockcroft Building, University of Salford, Salford, United Kingdom
| | - Tobias Peikert
- Department of Pulmonary Medicine, Mayo Clinic, Rochester, Minnesota
| | - Bruce W S Robinson
- National Centre for Asbestos Related Diseases, School of Medicine and Pharmacology, University of Western Australia, Perth, Western Australia, Australia; Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - Arnaud Scherpereel
- Pulmonary and Thoracic Oncology, CHU de Lille, Univ Lille, Lille, France; French National Network of Clinical Expert Centres for Malignant Pleural Mesothelioma Management
| | - Anne S Tsao
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - Marc de Perrot
- Division of Thoracic Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Gavitt A Woodard
- Thoracic Oncology Program, Department of Surgery, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California
| | - David M Jablons
- Thoracic Oncology Program, Department of Surgery, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California
| | - Jacinta Wiens
- International Association for the Study of Lung Cancer, Aurora, Colorado
| | - Fred R Hirsch
- International Association for the Study of Lung Cancer, Aurora, Colorado; Division of Medical Oncology, University of Colorado Cancer Center, Aurora, Colorado
| | - Haining Yang
- Thoracic Oncology, University of Hawaii Cancer Center, Honolulu, Hawaii
| | - Michele Carbone
- Thoracic Oncology, University of Hawaii Cancer Center, Honolulu, Hawaii
| | - Anish Thomas
- Development Therapeutics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Raffit Hassan
- Thoracic and Gastrointestinal Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland.
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Ayoub NM, Al-Shami KM, Yaghan RJ. Immunotherapy for HER2-positive breast cancer: recent advances and combination therapeutic approaches. BREAST CANCER-TARGETS AND THERAPY 2019; 11:53-69. [PMID: 30697064 PMCID: PMC6340364 DOI: 10.2147/bctt.s175360] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Cancer immunotherapy has evolved dramatically with improved understanding of immune microenvironment and immunosurveillance. The immunogenicity of breast cancer is rather heterogeneous. Specific subtypes of breast cancer such as estrogen receptor (ER)-negative, human EGF receptor 2 (HER2)-positive, and triple-negative breast cancer (TNBC) have shown evidence of immunogenicity based on tumor–immune interactions. Several preclinical and clinical studies have explored the potential for immunotherapy to improve the clinical outcomes for different subtypes of breast cancer. This review describes the immune microenvironment of HER2-positive breast cancer and summarizes recent clinical advances of immunotherapeutic treatments in this breast cancer subtype. The review provides rationale and ongoing clinical evidence to the use of immune checkpoint inhibitors, therapeutic vaccines, and adoptive T cell immunotherapy in breast cancer. In addition, the present paper describes the most relevant clinical progress of strategies for the combination of immunotherapy with standard treatment modalities in HER2-positive breast cancer including chemotherapy, targeted therapy, and radiotherapy.
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Affiliation(s)
- Nehad M Ayoub
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology (JUST), Irbid, Jordan,
| | - Kamal M Al-Shami
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA
| | - Rami J Yaghan
- Department of General Surgery and Urology, Faculty of Medicine, Jordan University of Science and Technology (JUST), Irbid, Jordan
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Wu L, Blum W, Zhu CQ, Yun Z, Pecze L, Kohno M, Chan ML, Zhao Y, Felley-Bosco E, Schwaller B, de Perrot M. Putative cancer stem cells may be the key target to inhibit cancer cell repopulation between the intervals of chemoradiation in murine mesothelioma. BMC Cancer 2018; 18:471. [PMID: 29699510 PMCID: PMC5921988 DOI: 10.1186/s12885-018-4354-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 04/09/2018] [Indexed: 12/29/2022] Open
Abstract
Background Cancer cell repopulation during chemotherapy or radiotherapy is a major factor limiting the efficacy of treatment. Cancer stem cells (CSC) may play critical roles during this process. We aim to demonstrate the role of mesothelioma stem cells (MSC) in treatment failure and eventually to design specific target therapies against MSC to improve the efficacy of treatment in malignant mesothelioma. Methods Murine mesothelioma AB12 and RN5 cells were used to compare tumorigenicity in mice. The expression of CSC-associated genes was evaluated by quantitative real-time PCR in both cell lines treated with chemo-radiation. Stemness properties of MSC-enriched RN5-EOS-Puro2 cells were characterized with flow cytometry and immunostaining. A MSC-specific gene profile was screened by microarray assay and confirmed thereafter. Gene Ontology analysis of the selected genes was performed by GOMiner. Results Tumor growth delay of murine mesothelioma AB12 cells was achieved after each cycle of cisplatin treatment, however, tumors grew back rapidly due to cancer cell repopulation between courses of chemotherapy. Strikingly, a 10-times lower number of irradiated cells in both cell lines led to a similar tumor incidence and growth rate as with untreated cells. The expression of CSC-associated genes such as CD24, CD133, CD90 and uPAR was dramatically up-regulated, while others did not change significantly after chemoradiation. Highly enriched MSC after selection with puromycin displayed an increasing GFP-positive population and showed typical properties of stemness. Comparatively, the proportion of MSC significantly increased after RN5-EOS parental cells were treated with either chemotherapy, γ-ray radiation, or a combination of the two, while MSC showed more resistance to the above treatments. A group of identified genes are most likely MSC-specific, and major pathways related to regulation of cell growth or apoptosis are involved. Upregulation of the gene transcripts Tnfsf18, Serpinb9b, Ly6a, and Nppb were confirmed. Conclusion Putative MSC possess the property of stemness showing more resistance to chemoradiation, suggesting that MSC may play critical roles in cancer cell repopulation. Further identification of selected genes may be used to design novel target therapies against MSC, so as to eliminate cancer cell repopulation in mesothelioma. Electronic supplementary material The online version of this article (10.1186/s12885-018-4354-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Licun Wu
- Division of Thoracic Surgery, Latner Thoracic Surgery Laboratories, University Health Network, Toronto, ON, Canada.,Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Walter Blum
- Department of Medicine, Unit of Anatomy, University of Fribourg, CH-1700, Fribourg, Switzerland.,INSERM, U1162, Génomique Fonctionnelle des Tumeurs Solides, 27 rue Juliette Dodu, 75010, Paris, France
| | - Chang-Qi Zhu
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Zhihong Yun
- Division of Thoracic Surgery, Latner Thoracic Surgery Laboratories, University Health Network, Toronto, ON, Canada
| | - Laszlo Pecze
- Department of Medicine, Unit of Anatomy, University of Fribourg, CH-1700, Fribourg, Switzerland
| | - Mikihiro Kohno
- Division of Thoracic Surgery, Latner Thoracic Surgery Laboratories, University Health Network, Toronto, ON, Canada
| | - Mei-Lin Chan
- Division of Thoracic Surgery, Latner Thoracic Surgery Laboratories, University Health Network, Toronto, ON, Canada
| | - Yidan Zhao
- Division of Thoracic Surgery, Latner Thoracic Surgery Laboratories, University Health Network, Toronto, ON, Canada
| | - Emanuela Felley-Bosco
- Laboratory of Molecular Oncology, University Hospital Zurich, University of Zurich, 8044, Zürich, Switzerland
| | - Beat Schwaller
- Department of Medicine, Unit of Anatomy, University of Fribourg, CH-1700, Fribourg, Switzerland
| | - Marc de Perrot
- Division of Thoracic Surgery, Latner Thoracic Surgery Laboratories, University Health Network, Toronto, ON, Canada. .,Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada. .,Division of Thoracic Surgery, Toronto Mesothelioma Research Program, Toronto General Hospital, 9N-961, 200 Elizabeth St, Toronto, ON, M5G 2C4, Canada.
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11
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Benzaquen J, Marquette CH, Glaichenhaus N, Leroy S, Hofman P, Ilié M. [The biological rationale for immunotherapy in cancer]. Rev Mal Respir 2018; 35:206-222. [PMID: 29428191 DOI: 10.1016/j.rmr.2017.11.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 11/06/2017] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Immunotherapy aims to promote the immune system's activity against malignant cells by stimulating the response to several tumor antigens. STATE OF THE ART Immunosurveillance may adjust the immunogenicity of tumors. To be effective, immunity must induce the specific activation of CD4+ and CD8+ T lymphocytes, as well as activation of innate immunity. Activator and inhibitory costimulatory molecules regulate T lymphocyte activation at immunity checkpoints such as PD-1/PD-L1 and CTLA-4. Adaptive immune resistance confers tumour resistance to immunosurveillance through these immune checkpoints. PERSPECTIVES Approaches involving the combination of several immunotherapies with each other or with chemotherapy and radiotherapy and antibodies against other molecules of costimulation are under development. The development of biomarkers, which can select a targeted population and predict therapeutic response, represents a major challenge. Tumour high-throughput sequencing could refine "immunoscore". Intratumoral T cell receptor seems to represent a promising biomarker. CONCLUSIONS Numerous challenges still remain in developing research approaches for the development of immunotherapies.
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Affiliation(s)
- J Benzaquen
- Department of Pulmonary Medicine and Oncology, CHU de Nice, FHU OncoAge, 06100 Nice, France
| | - C-H Marquette
- Department of Pulmonary Medicine and Oncology, CHU de Nice, FHU OncoAge, 06100 Nice, France.
| | - N Glaichenhaus
- Université Côte-d'Azur, CNRS, Inserm, institut de pharmacologie moleculaire et cellulaire, FHU-OncoAge, 06560 Valbonne, France
| | - S Leroy
- Department of Pulmonary Medicine and Oncology, CHU de Nice, FHU OncoAge, 06100 Nice, France
| | - P Hofman
- Laboratory of Clinical and Experimental Pathology and Hospital-related Biobank (BB-0033-00025), IRCAN, FHU OncoAge, 06100 Nice, France
| | - M Ilié
- Laboratory of Clinical and Experimental Pathology and Hospital-related Biobank (BB-0033-00025), IRCAN, FHU OncoAge, 06100 Nice, France
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12
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Bakker E, Guazzelli A, Ashtiani F, Demonacos C, Krstic-Demonacos M, Mutti L. Immunotherapy advances for mesothelioma treatment. Expert Rev Anticancer Ther 2017; 17:799-814. [PMID: 28724330 DOI: 10.1080/14737140.2017.1358091] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Mesothelioma is a rare type of cancer that is strongly tied to asbestos exposure. Despite application of different modalities such as chemotherapy, radiotherapy and surgery, patient prognosis remains very poor and therapies are ineffective. Much research currently focuses on the application of novel approaches such as immunotherapy towards this disease. Areas covered: The types, stages and aetiology of mesothelioma are detailed, followed by a discussion of the current treatment options such as radiotherapy, surgery, and chemotherapy. A description of innate and adaptive immunity and the principles and justification of immunotherapy is also included. Clinical trials for different immunotherapeutic modalities are described, and lastly the article closes with an expert commentary and five-year view, the former of which is summarised below. Expert commentary: Current efforts for novel mesothelioma therapies have been limited by attempting to apply treatments from other cancers, an approach which is not based on a solid understanding of mesothelioma biology. In our view, the influence of the hostile, hypoxic microenvironment and the gene expression and metabolic changes that resultantly occur should be characterised to improve therapies. Lastly, clinical trials should focus on overall survival rather than surrogate endpoints to avoid bias and inaccurate reflections of treatment effects.
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Affiliation(s)
- Emyr Bakker
- a Biomedical Research Centre, School of Environment and Life Sciences , University of Salford , Salford , UK
| | - Alice Guazzelli
- a Biomedical Research Centre, School of Environment and Life Sciences , University of Salford , Salford , UK
| | - Firozeh Ashtiani
- a Biomedical Research Centre, School of Environment and Life Sciences , University of Salford , Salford , UK
| | - Constantinos Demonacos
- b Faculty of Biology, Medicine and Health, School of Health Sciences, Division of Pharmacy & Optometry , University of Manchester , Manchester , UK
| | - Marija Krstic-Demonacos
- a Biomedical Research Centre, School of Environment and Life Sciences , University of Salford , Salford , UK
| | - Luciano Mutti
- a Biomedical Research Centre, School of Environment and Life Sciences , University of Salford , Salford , UK
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13
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Guazzelli A, Bakker E, Tian K, Demonacos C, Krstic-Demonacos M, Mutti L. Promising investigational drug candidates in phase I and phase II clinical trials for mesothelioma. Expert Opin Investig Drugs 2017; 26:933-944. [PMID: 28679291 DOI: 10.1080/13543784.2017.1351545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Malignant mesothelioma is a rare and lethal malignancy primarily affecting the pleura and peritoneum. Mesothelioma incidence is expected to increase worldwide and current treatments remain ineffective, leading to poor prognosis. Within this article potential targets to improve the quality of life of the patients and assessment of further avenues for research are discussed. Areas covered: This review highlights emerging therapies currently under investigation for malignant mesothelioma with a specific focus on phase I and phase II clinical trials. Three main areas are discussed: immunotherapy (immune checkpoint blockade and cancer vaccines, among others), multitargeted therapy (such as targeting pro-angiogenic genes) and gene therapy (such as suicide gene therapy). For each, clinical trials are described to detail the current or past investigations at phase I and II. Expert opinion: The approach of applying existing treatments from other cancers does not show significant benefit, with the most promising outcome being an increase in survival of 2.7 months following combination of chemotherapy with bevacizumab. It is our opinion that the hypoxic microenvironment, the role of the stroma, and the metabolic status of mesothelioma should all be assessed and characterised to aid in the development of new treatments to improve patient outcomes.
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Affiliation(s)
- Alice Guazzelli
- a Biomedical Research Centre, School of Environment and Life Sciences , University of Salford , Salford , UK
| | - Emyr Bakker
- a Biomedical Research Centre, School of Environment and Life Sciences , University of Salford , Salford , UK
| | - Kun Tian
- a Biomedical Research Centre, School of Environment and Life Sciences , University of Salford , Salford , UK
| | | | - Marija Krstic-Demonacos
- a Biomedical Research Centre, School of Environment and Life Sciences , University of Salford , Salford , UK
| | - Luciano Mutti
- a Biomedical Research Centre, School of Environment and Life Sciences , University of Salford , Salford , UK
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14
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Tano ZE, Chintala NK, Li X, Adusumilli PS. Novel immunotherapy clinical trials in malignant pleural mesothelioma. ANNALS OF TRANSLATIONAL MEDICINE 2017; 5:245. [PMID: 28706913 DOI: 10.21037/atm.2017.03.81] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
In this article, we review ongoing novel clinical trials currently investigating immunotherapeutic approaches for patients with malignant pleural mesothelioma (MPM). There is a dearth of effective therapeutic options for patients diagnosed with MPM and metastatic cancers of the pleura; these diseases have an estimated annual incidence of 150,000. Modulating the immune microenvironment to promote antitumor immune responses by systemically and regionally delivered therapeutic agents is an active area of investigation. We have conducted a review of the clinical trials database for clinical trials actively recruiting MPM patients. We focused on novel therapeutic agents administered either systemically or intrapleurally to modulate the tumor immune microenvironment. Herein, we have summarized the published results of early phase clinical trials. A total of 43 clinical trials met our inclusion criteria. These trials are investigating immunologic agents (n=20) and antibody directed therapies (n=23). The regional intrapleural delivery technique (6 trials) is used to administer chemotherapy agents (3 of 6 trials) and immunotherapy agents (3 of 6 trials), including chimeric antigen receptor T cells (1 of 6 trials). Current clinical trials modulating the MPM immune microenvironment and the combination of these novel agents with standard of care therapy provide a promising area of investigation for MPM therapy.
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Affiliation(s)
- Zachary E Tano
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Navin K Chintala
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Xiaoyu Li
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Prasad S Adusumilli
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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15
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Bakker E, Guazzelli A, Krstic-Demonacos M, Lisanti M, Sotgia F, Mutti L. Current and prospective pharmacotherapies for the treatment of pleural mesothelioma. Expert Opin Orphan Drugs 2017. [DOI: 10.1080/21678707.2017.1325358] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Emyr Bakker
- Biomedical Research Centre, School of Environment and Life Sciences, University of Salford, Salford, UK
| | - Alice Guazzelli
- Biomedical Research Centre, School of Environment and Life Sciences, University of Salford, Salford, UK
| | - Marija Krstic-Demonacos
- Biomedical Research Centre, School of Environment and Life Sciences, University of Salford, Salford, UK
| | - Michael Lisanti
- Biomedical Research Centre, School of Environment and Life Sciences, University of Salford, Salford, UK
| | - Federica Sotgia
- Biomedical Research Centre, School of Environment and Life Sciences, University of Salford, Salford, UK
| | - Luciano Mutti
- Biomedical Research Centre, School of Environment and Life Sciences, University of Salford, Salford, UK
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Granier C, Soumelis V, Mandavit M, Gibault L, Belazzoug R, de Guillebon E, Badoual C, Tartour E, Roussel H. Les « immune checkpoints », comment ça marche. Ann Pathol 2017; 37:18-28. [DOI: 10.1016/j.annpat.2016.12.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 12/06/2016] [Indexed: 01/21/2023]
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Catakovic K, Klieser E, Neureiter D, Geisberger R. T cell exhaustion: from pathophysiological basics to tumor immunotherapy. Cell Commun Signal 2017; 15:1. [PMID: 28073373 PMCID: PMC5225559 DOI: 10.1186/s12964-016-0160-z] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 12/22/2016] [Indexed: 12/13/2022] Open
Abstract
The immune system is capable of distinguishing between danger- and non-danger signals, thus inducing either an appropriate immune response against pathogens and cancer or inducing self-tolerance to avoid autoimmunity and immunopathology. One of the mechanisms that have evolved to prevent destruction by the immune system, is to functionally silence effector T cells, termed T cell exhaustion, which is also exploited by viruses and cancers for immune escape In this review, we discuss some of the phenotypic markers associated with T cell exhaustion and we summarize current strategies to reinvigorate exhausted T cells by blocking these surface marker using monoclonal antibodies.
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Affiliation(s)
- Kemal Catakovic
- Laboratory for Immunological and Molecular Cancer Research, Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Paracelsus Medical University, Müllner Hauptstrasse 48, Salzburg, 5020, Austria.,Salzburg Cancer Research Institute, Salzburg, Austria
| | - Eckhard Klieser
- Salzburg Cancer Research Institute, Salzburg, Austria.,Department of Pathology, Paracelsus Medical University, Müllner Hauptstrasse 48, Salzburg, 5020, Austria
| | - Daniel Neureiter
- Salzburg Cancer Research Institute, Salzburg, Austria.,Department of Pathology, Paracelsus Medical University, Müllner Hauptstrasse 48, Salzburg, 5020, Austria
| | - Roland Geisberger
- Laboratory for Immunological and Molecular Cancer Research, Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Paracelsus Medical University, Müllner Hauptstrasse 48, Salzburg, 5020, Austria. .,Salzburg Cancer Research Institute, Salzburg, Austria.
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Granier C, Karaki S, Roussel H, Badoual C, Tran T, Anson M, Fabre E, Oudard S, Tartour E. Immunothérapie des cancers : rationnel et avancées récentes. Rev Med Interne 2016; 37:694-700. [DOI: 10.1016/j.revmed.2016.05.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Accepted: 05/28/2016] [Indexed: 12/24/2022]
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Roncella S, Laurent S, Fontana V, Ferro P, Franceschini MC, Salvi S, Varesano S, Boccardo S, Vigani A, Morabito A, Canessa PA, Giannoni U, Rosenberg I, Valentino A, Fedeli F, Merlo DF, Ceppi M, Riggio S, Romani M, Saverino D, Poggi A, Pistillo MP. CTLA-4 in mesothelioma patients: tissue expression, body fluid levels and possible relevance as a prognostic factor. Cancer Immunol Immunother 2016; 65:909-17. [PMID: 27207606 PMCID: PMC11029598 DOI: 10.1007/s00262-016-1844-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 05/07/2016] [Indexed: 10/21/2022]
Abstract
CTLA-4 function as a negative regulator of T cell-mediated immune response is well established, whereas much less is known about the immunoregulatory role of its soluble isoform (sCTLA-4). No data are available on CTLA-4 expression and prognostic impact in malignant pleural mesothelioma (MPM). We investigated, by immunohistochemistry, CTLA-4 expression in tumor tissues and, by ELISA, sCTLA-4 levels in sera and matched pleural effusions from 45 MPM patients. Prognostic effect of CTLA-4 expression on overall survival (OS) was assessed through Cox regression and prognostic significance expressed as death rate ratio (HR). We found that 56.0 % of MPM tissues expressed CTLA-4 with variable intensity and percentage of positive cells estimated by the immunoreactive score. sCTLA-4 levels were significantly higher in sera (S-sCTLA-4) than in pleural effusions (PE-sCTLA-4) (geometric mean ratio = 2.70, P value = 0.020). CTLA-4 expression at the tissue level was higher in the epithelioid histological subtype than in the sarcomatoid, whereas at the serum level, it was higher in the sarcomatoid subtype. A homogeneous favorable prognostic effect was found for CTLA-4 overexpression in tissue, serum and pleural effusion. Interestingly, only the PE-sCTLA-4 was found to be a statistically significant positive prognostic factor (HR = 0.37, 95 % CI = 0.18-0.77, P value = 0.007). Indeed, PE-sCTLA-4 correlated with CTLA-4 expression in tissues, whereas this latter expression showed a weak association with OS. To confirm our findings, further experimental evidences obtained from a larger cohort of MPM patients are required. However, our results would indicate a positive correlation of PE-sCTLA-4 levels and OS in MPM patients.
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Affiliation(s)
- Silvio Roncella
- Division of Histopathology and Cytopathology, ASL5, La Spezia, Italy
| | - Stefania Laurent
- Department of Internal Medicine (DIMI), University of Genoa, Genoa, Italy
| | - Vincenzo Fontana
- Unit of Clinical Epidemiology, IRCCS AOU San Martino-IST, Genoa, Italy
| | - Paola Ferro
- Division of Histopathology and Cytopathology, ASL5, La Spezia, Italy
| | | | - Sandra Salvi
- Division of Histopathology and Cytopathology, IRCCS AOU San Martino-IST, Genoa, Italy
| | - Serena Varesano
- Division of Histopathology and Cytopathology, IRCCS AOU San Martino-IST, Genoa, Italy
| | - Simona Boccardo
- Division of Histopathology and Cytopathology, IRCCS AOU San Martino-IST, Genoa, Italy
| | | | - Anna Morabito
- Unit of Tumor Epigenetics, IRCCS AOU San Martino-IST, Genoa, Italy
| | | | | | | | | | - Franco Fedeli
- Division of Histopathology and Cytopathology, ASL5, La Spezia, Italy
| | | | - Marcello Ceppi
- Unit of Clinical Epidemiology, IRCCS AOU San Martino-IST, Genoa, Italy
| | - Salvatore Riggio
- Blood Transfusion Centre, IRCCS AOU-San Martino-IST, Genoa, Italy
| | - Massimo Romani
- Unit of Tumor Epigenetics, IRCCS AOU San Martino-IST, Genoa, Italy
| | - Daniele Saverino
- Department of Experimental Medicine, University of Genoa, Genoa, Italy
| | - Alessandro Poggi
- Unit of Molecular Oncology and Angiogenesis, IRCCS AOU San Martino-IST, Genoa, Italy
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Comin-Anduix B, Escuin-Ordinas H, Ibarrondo FJ. Tremelimumab: research and clinical development. Onco Targets Ther 2016; 9:1767-76. [PMID: 27042127 PMCID: PMC4809326 DOI: 10.2147/ott.s65802] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The immune checkpoint therapy is a relatively recent strategy that aims to tweak the immune system to effectively attack cancer cells. The understanding of the immune responses and their regulation at the intracellular level and the development of fully humanized monoclonal antibodies are the pillars of an approach that could elicit durable clinical responses and even remission in some patients with cancer. Most of the immune checkpoints that regulate the T-cell responses (activation and inhibition) operate through proteins present on the cytoplasmic membrane of the immune cells. Therefore, specific antibodies capable of blocking the inhibitory signals should lead to unrestrained immune responses that supersede the inhibitory mechanisms, which are naturally present in the tumor microenviroment. The best-known and most successful targets for immune checkpoint therapy are the cytotoxic T-lymphocyte antigen-4 and programmed cell death-1 coreceptors. Tremelimumab (CP-675,206) is a fully humanized monoclonal antibody specific for cytotoxic T-lymphocyte antigen-4, which has been successfully used to treat patients with metastatic melanoma and some other cancers. Although still a work in progress, the use of tremelimumab as an immune checkpoint therapeutic agent is a promising approach alone or in combination with other anticancer drugs. Here, we review the use of this antibody in a number of clinical trials against solid tumors.
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Affiliation(s)
- Begoña Comin-Anduix
- Division of Surgical-Oncology, Department of Surgery, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA, USA; Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA, USA
| | - Helena Escuin-Ordinas
- Division of Hematology-Oncology, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA, USA
| | - Francisco Javier Ibarrondo
- Division of Infectious Diseases, Department of Medicine, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA, USA
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