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Xu C, Zhou X, Webb L, Yalavarthi S, Zheng W, Saha S, Schweickhardt R, Soloviev M, Jenkins MH, Brandstetter S, Belousova N, Alimzhanov M, Rabinovich B, Deshpande AM, Brewis N, Helming L. M9657 Is a Bispecific Tumor-Targeted Anti-CD137 Agonist That Induces MSLN-Dependent Antitumor Immunity without Liver Inflammation. Cancer Immunol Res 2024; 12:195-213. [PMID: 38091375 DOI: 10.1158/2326-6066.cir-23-0243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/13/2023] [Accepted: 12/11/2023] [Indexed: 02/03/2024]
Abstract
The costimulatory receptor CD137 (also known as TNFRSF9 or 4-1BB) sustains effective cytotoxic T-cell responses. Agonistic anti-CD137 cancer immunotherapies are being investigated in clinical trials. Development of the first-generation CD137-agonist monotherapies utomilumab and urelumab was unsuccessful due to low antitumor efficacy mediated by the epitope recognized on CD137 or hepatotoxicity mediated by Fcγ receptors (FcγR) ligand-dependent CD137 activation, respectively. M9657 was engineered as a tetravalent bispecific antibody (mAb2) in a human IgG1 backbone with LALA mutations to reduce binding to FCγRs. Here, we report that M9657 selectively binds to mesothelin (MSLN) and CD137 with similar affinity in humans and cynomolgus monkeys. In a cellular functional assay, M9657 enhanced CD8+ T cell-mediated cytotoxicity and cytokine release in the presence of tumor cells, which was dependent on both MSLN expression and T-cell receptor/CD3 activation. Both FS122m, a murine surrogate with the same protein structure as M9657, and chimeric M9657, a modified M9657 antibody with the Fab portion replaced with an anti-murine MSLN motif, demonstrated in vivo antitumor efficacy against various tumors in wild-type and human CD137 knock-in mice, and this was accompanied by activated CD8+ T-cell infiltration in the tumor microenvironment. The antitumor immunity of M9657 and FS122m depended on MSLN expression density and the mAb2 structure. Compared with 3H3, a murine surrogate of urelumab, FS122m and chimeric M9657 displayed significantly lower on-target/off-tumor toxicity. Taken together, M9657 exhibits a promising profile for development as a tumor-targeting immune agonist with potent anticancer activity without systemic immune activation and associated hepatotoxicity.
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Affiliation(s)
- Chunxiao Xu
- Research Unit Oncology, EMD Serono, Billerica, Massachusetts
| | - Xueyuan Zhou
- Research Unit Oncology, EMD Serono, Billerica, Massachusetts
| | - Lindsay Webb
- Research Unit Oncology, EMD Serono, Billerica, Massachusetts
| | | | - Wenxin Zheng
- Research Unit Oncology, EMD Serono, Billerica, Massachusetts
| | - Somdutta Saha
- Research Unit Oncology, EMD Serono, Billerica, Massachusetts
| | - Rene Schweickhardt
- Discovery and Development Technologies, EMD Serono, Billerica, Massachusetts
| | - Maria Soloviev
- Discovery and Development Technologies, EMD Serono, Billerica, Massachusetts
| | - Molly H Jenkins
- Research Unit Oncology, EMD Serono, Billerica, Massachusetts
| | | | | | | | | | | | - Neil Brewis
- F-star Therapeutics, Cambridge, United Kingdom
| | - Laura Helming
- Research Unit Oncology, EMD Serono, Billerica, Massachusetts
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Zitzmann-Kolbe S, Kristian A, Zopf D, Kamfenkel C, Politz O, Ellingsen C, Hilbig J, Juul MU, Fonslet J, Nielsen CH, Schatz CA, Bjerke RM, Cuthbertson AS, Mumberg D, Hagemann UB. A Targeted Thorium-227 Conjugate Demonstrates Efficacy in Preclinical Models of Acquired Drug Resistance and Combination Potential with Chemotherapeutics and Antiangiogenic Therapies. Mol Cancer Ther 2023; 22:1073-1086. [PMID: 37365121 PMCID: PMC10477831 DOI: 10.1158/1535-7163.mct-22-0808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 04/17/2023] [Accepted: 06/23/2023] [Indexed: 06/28/2023]
Abstract
Targeted alpha therapies (TAT) are an innovative class of therapies for cancer treatment. The unique mode-of-action of TATs is the induction of deleterious DNA double-strand breaks. Difficult-to-treat cancers, such as gynecologic cancers upregulating the chemoresistance P-glycoprotein (p-gp) and overexpressing the membrane protein mesothelin (MSLN), are promising targets for TATs. Here, based on the previous encouraging findings with monotherapy, we investigated the efficacy of the mesothelin-targeted thorium-227 conjugate (MSLN-TTC) both as monotherapy and in combination with chemotherapies and antiangiogenic compounds in ovarian and cervical cancer models expressing p-gp. MSLN-TTC monotherapy showed equal cytotoxicity in vitro in p-gp-positive and -negative cancer cells, while chemotherapeutics dramatically lost activity on p-gp-positive cancer cells. In vivo, MSLN-TTC exhibited dose-dependent tumor growth inhibition with treatment/control ratios of 0.03-0.44 in various xenograft models irrespective of p-gp expression status. Furthermore, MSLN-TTC was more efficacious in p-gp-expressing tumors than chemotherapeutics. In the MSLN-expressing ST206B ovarian cancer patient-derived xenograft model, MSLN-TTC accumulated specifically in the tumor, which combined with pegylated liposomal doxorubicin (Doxil), docetaxel, bevacizumab, or regorafenib treatment induced additive-to-synergistic antitumor efficacy and substantially increased response rates compared with respective monotherapies. The combination treatments were well tolerated and only transient decreases in white and red blood cells were observed. In summary, we demonstrate that MSLN-TTC treatment shows efficacy in p-gp-expressing models of chemoresistance and has combination potential with chemo- and antiangiogenic therapies.
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Poorebrahim M, Quiros-Fernandez I, Marmé F, Burdach SE, Cid-Arregui A. A costimulatory chimeric antigen receptor targeting TROP2 enhances the cytotoxicity of NK cells expressing a T cell receptor reactive to human papillomavirus type 16 E7. Cancer Lett 2023; 566:216242. [PMID: 37217069 DOI: 10.1016/j.canlet.2023.216242] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/11/2023] [Accepted: 05/18/2023] [Indexed: 05/24/2023]
Abstract
Immune cells modified to express a tumor-reactive T cell receptor (TCR) have shown limited efficacy as stand-alone therapy against solid tumors. Genital and oropharyngeal carcinomas induced by human papillomavirus (HPV) type 16 express constitutively its E6 and E7 oncoproteins, which makes them convenient targets for adoptive cell immunotherapy. However, viral antigen presentation by tumor cells is low and limits the anti-tumor efficacy of CD8+ T cells. To enhance the functionality of immune effector cells, we have devised a strategy combining a costimulatory chimeric antigen receptor (CAR) with a TCR. We used a clinically tested TCR specific to E7 (E7-TCR) of HPV16 and a newly constructed CAR targeting the trophoblast cell surface antigen 2 (TROP2), which carried the intracellular costimulatory domains CD28 and 4-1BB, but was devoid of the CD3ζ domain. Flow cytometry analyses showed a notable upregulation of activation markers and of cytolytic molecule release by NK-92 cells genetically engineered to express CD3, CD8 and both E7-TCR and TROP2-CAR, after co-incubation with HPV16+ cervical cancer cells. Furthermore, the E7-TCR/TROP2-CAR NK-92 cells demonstrated enhanced antigen-specific activation and augmented cytotoxicity against tumor cells compared with NK-92 cells expressing the E7-TCR alone. A costimulatory TROP2-CAR can synergistically cooperate with the E7-TCR in NK cells thereby enhancing their signaling strength and antigen-specific cytotoxicity. This approach might improve the outcome of adoptive cell immunotherapies for HPV16+ cancer patients that are currently under investigation.
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Affiliation(s)
- Mansour Poorebrahim
- Targeted Tumor Vaccines Group, Clinical Cooperation Unit Applied Tumor Immunity, German Cancer Research Center (DKFZ), Heidelberg, Germany; Arnie Charbonneau Cancer Research Institute, University of Calgary, Calgary, AB, Canada
| | - Isaac Quiros-Fernandez
- Targeted Tumor Vaccines Group, Clinical Cooperation Unit Applied Tumor Immunity, German Cancer Research Center (DKFZ), Heidelberg, Germany; Research Center on Tropical Diseases (CIET)/Research Center on Surgery and Cancer (CICICA), Faculty of Microbiology, Universidad de Costa Rica, San Jose, Costa Rica
| | - Frederik Marmé
- Department of Obstetrics and Gynecology, University Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Stefan Eg Burdach
- Translational Pediatric Cancer Research Action - Institute of Pathology, TUM School of Medicine - Technical University of Munich, Trogerstr. 22 - RG - 540.0.11, D-81675, München, Germany; Department of Molecular Oncology, British Columbia Cancer Research Centre, 675 West 10th Avenue, Vancouver, BC, V5Z 1L3, Canada
| | - Angel Cid-Arregui
- Targeted Tumor Vaccines Group, Clinical Cooperation Unit Applied Tumor Immunity, German Cancer Research Center (DKFZ), Heidelberg, Germany.
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Quantitative Proteomics for the Identification of Differentially Expressed Proteins in the Extracellular Vesicles of Cervical Cancer Cells. Viruses 2023; 15:v15030702. [PMID: 36992411 PMCID: PMC10051161 DOI: 10.3390/v15030702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 02/24/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023] Open
Abstract
The extracellular vesicles (EVs) in a tumoral microenvironment can exert different functions by transferring their content, which has been poorly described in cervical cancer. Here, we tried to clarify the proteomic content of these EVs, comparing those derived from cancerous HPV (+) keratinocytes (HeLa) versus those derived from normal HPV (–) keratinocytes (HaCaT). We performed a quantitative proteomic analysis, using LC-MS/MS, of the EVs from HeLa and HaCaT cell lines. The up- and downregulated proteins in the EVs from the HeLa cell line were established, along with the cellular component, molecular function, biological processes, and signaling pathways in which they participate. The biological processes with the highest number of upregulated proteins are cell adhesion, proteolysis, lipid metabolic process, and immune system processes. Interestingly, three of the top five signaling pathways with more up- and downregulated proteins are part of the immune response. Due to their content, we can infer that EVs can have a significant role in migration, invasion, metastasis, and the activation or suppression of immune system cells in cancer.
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Takamizawa S, Yazaki S, Kojima Y, Yoshida H, Kitadai R, Nishikawa T, Shimoi T, Sudo K, Okuma HS, Tanioka M, Noguchi E, Uno M, Ishikawa M, Kato T, Fujiwara Y, Yonemori K. High mesothelin expression is correlated with non-squamous cell histology and poor survival in cervical cancer: a retrospective study. BMC Cancer 2022; 22:1215. [PMID: 36434635 PMCID: PMC9701073 DOI: 10.1186/s12885-022-10277-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 11/02/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Mesothelin (MSLN) is a cell-surface glycoprotein found in various solid tumours. Cancer therapies targeting MSLN have been developed in recent years; however, the available information on MSLN expression in cervical cancer is limited. This study aimed to evaluate MSLN expression in various histological types of cervical cancer and examine its relationship with prognosis. METHODS This retrospective study included patients with cervical cancer who underwent primary surgery between January 2000 and December 2020 at our institution. MSLN expression was evaluated by immunohistochemistry using clone SP74 and defined as positive if MSLN was expressed at any intensity. High MSLN expression was defined as an intensity of ≥ 2 + in ≥ 30% of tumour cells. The association between MSLN expression and clinicopathological factors was evaluated. RESULTS Overall, 123 patients were identified, and 140 tumour samples, including 17 paired primary and metastatic samples, were evaluated. Concerning histological type, 67 patients had squamous cell carcinoma (SCC), whereas 56 had non-SCC. MSLN expression was observed in 98.4% (121/123) of primary tumours. High MSLN expression was observed in 63.4% of samples (78/123), but it differed between the histological types (49.2% for SCC vs. 80.4% for non-SCC, p < 0.001). There was a significant correlation between MSLN expression in primary and metastatic lesions (Rs = 0.557, p = 0.015). In patients with common histological types, overall survival (OS) was shorter in the high MSLN expression group than in the low MSLN expression group (hazard ratio, 3.53; 95% confidence interval, 1.16-15.3, p = 0.03). CONCLUSIONS MSLN was highly expressed in patients with cervical cancer, especially in those with non-SCC. High MSLN expression in the primary lesion was significantly associated with poor OS, and its expression was maintained in metastatic lesions. Our findings indicate that MSLN may be an attractive therapeutic target for cervical cancer. TRIAL REGISTRATION Retrospectively registered. 2014-393. 1 June 2015.
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Affiliation(s)
- Shigemasa Takamizawa
- grid.272242.30000 0001 2168 5385Department of Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045 Japan
| | - Shu Yazaki
- grid.272242.30000 0001 2168 5385Department of Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045 Japan
| | - Yuki Kojima
- grid.272242.30000 0001 2168 5385Department of Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045 Japan
| | - Hiroshi Yoshida
- grid.272242.30000 0001 2168 5385Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Rui Kitadai
- grid.272242.30000 0001 2168 5385Department of Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045 Japan
| | - Tadaaki Nishikawa
- grid.272242.30000 0001 2168 5385Department of Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045 Japan
| | - Tatsunori Shimoi
- grid.272242.30000 0001 2168 5385Department of Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045 Japan
| | - Kazuki Sudo
- grid.272242.30000 0001 2168 5385Department of Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045 Japan
| | - Hitomi Sumiyoshi Okuma
- grid.272242.30000 0001 2168 5385Department of Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045 Japan
| | - Maki Tanioka
- grid.272242.30000 0001 2168 5385Department of Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045 Japan
| | - Emi Noguchi
- grid.272242.30000 0001 2168 5385Department of Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045 Japan
| | - Masaya Uno
- grid.272242.30000 0001 2168 5385Department of Gynecology, National Cancer Center Hospital, Tokyo, Japan
| | - Mitsuya Ishikawa
- grid.272242.30000 0001 2168 5385Department of Gynecology, National Cancer Center Hospital, Tokyo, Japan
| | - Tomoyasu Kato
- grid.272242.30000 0001 2168 5385Department of Gynecology, National Cancer Center Hospital, Tokyo, Japan
| | - Yasuhiro Fujiwara
- grid.272242.30000 0001 2168 5385Department of Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045 Japan
| | - Kan Yonemori
- grid.272242.30000 0001 2168 5385Department of Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045 Japan
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Zhou Y, Espenel S, Achkar S, Leary A, Gouy S, Chargari C. Combined modality including novel sensitizers in gynecological cancers. Int J Gynecol Cancer 2022; 32:389-401. [DOI: 10.1136/ijgc-2021-002529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 12/06/2021] [Indexed: 01/05/2023] Open
Abstract
Standard treatment of locally advanced gynecological cancers relies mainly on platinum-based concurrent chemoradiotherapy followed by brachytherapy. Current chemotherapeutic drugs are only transiently effective and patients with advanced disease often develop resistance and subsequently, distant metastases despite significant initial responses of the primary tumor. In addition, some patients still develop local failure or progression, suggesting that there is still a place for increasing the anti-tumor radiation effect. Several strategies are being developed to increase the probability of curing patients. Vaginal cancer and vulva cancer are rare diseases, which resemble cervical cancer in their histology and pathogenesis. These gynecological cancers are predominantly associated with human papilloma virus infection. Treatment strategies in other unresectable gynecologic cancers are usually derived from evidence in locally advanced cervical cancers. In this review, we discuss mechanisms by which novel therapies could work synergistically with conventional chemoradiotherapy, from pre-clinical and ongoing clinical data. Trimodal, even quadrimodal treatment are currently being tested in clinical trials. Novel combinations derived from a metastatic setting, and being tested in locally advanced tumors, include anti-angiogenic agents, immunotherapy, tumor-infiltrating lymphocytes therapy, adoptive T-cell therapy and apoptosis inducers to enhance chemoradiotherapy efficacy through complementary molecular pathways. In parallel, radiosensitizers, such as nanoparticles and radiosensitizers of hypoxia aim to maximize the effect of radiotherapy locally.
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7
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Martinez-Morales P, Morán Cruz I, Roa-de la Cruz L, Maycotte P, Reyes Salinas JS, Vazquez Zamora VJ, Gutierrez Quiroz CT, Montiel-Jarquin AJ, Vallejo-Ruiz V. Hallmarks of glycogene expression and glycosylation pathways in squamous and adenocarcinoma cervical cancer. PeerJ 2021; 9:e12081. [PMID: 34540372 PMCID: PMC8415283 DOI: 10.7717/peerj.12081] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 08/06/2021] [Indexed: 12/18/2022] Open
Abstract
Background Dysregulation of glycogene expression in cancer can lead to aberrant glycan expression, which can promote tumorigenesis. Cervical cancer (CC) displays an increased expression of glycogenes involved in sialylation and sialylated glycans. Here, we show a comprehensive analysis of glycogene expression in CC to identify glycogene expression signatures and the possible glycosylation pathways altered. Methods First, we performed a microarray expression assay to compare glycogene expression changes between normal and cervical cancer tissues. Second, we used 401 glycogenes to analyze glycogene expression in adenocarcinoma and squamous carcinoma from RNA-seq data at the cBioPortal for Cancer Genomics. Results The analysis of the microarray expression assay indicated that CC displayed an increase in glycogenes related to GPI-anchored biosynthesis and a decrease in genes associated with chondroitin and dermatan sulfate with respect to normal tissue. Also, the glycogene analysis of CC samples by the RNA-seq showed that the glycogenes involved in the chondroitin and dermatan sulfate pathway were downregulated. Interestingly the adenocarcinoma tumors displayed a unique glycogene expression signature compared to squamous cancer that shows heterogeneous glycogene expression divided into six types. Squamous carcinoma type 5 (SCC-5) showed increased expression of genes implicated in keratan and heparan sulfate synthesis, glycosaminoglycan degradation, ganglio, and globo glycosphingolipid synthesis was related to poorly differentiated tumors and poor survival. Squamous carcinoma type 6 (SCC-6) displayed an increased expression of genes involved in chondroitin/dermatan sulfate synthesis and lacto and neolacto glycosphingolipid synthesis and was associated with nonkeratinizing squamous cancer and good survival. In summary, our study showed that CC tumors are not a uniform entity, and their glycome signatures could be related to different clinicopathological characteristics.
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Affiliation(s)
- Patricia Martinez-Morales
- CONACYT-Centro de Investigación Biomédica de Oriente, Mexican Institute of Social Security, Metepec, Puebla, México
| | - Irene Morán Cruz
- Centro de Investigación Biomédica de Oriente, Laboratory of Molecular Biology, Instituto Mexicano del Seguro Social, Metepec, Puebla, México
| | - Lorena Roa-de la Cruz
- Department of Biological Chemical Sciences, Universidad de las Américas-Puebla, San Andrés Cholula, Puebla, Mexico
| | - Paola Maycotte
- Centro de Investigación Biomédica de Oriente, Laboratory of Cell Biology, Instituto Mexicano del Seguro Social, Metepec, Puebla, México
| | - Juan Salvador Reyes Salinas
- Hospital de especialidades, General Manuel Ávila Camacho, Instituto Mexicano del Seguro Social, Puebla, Puebla, México
| | - Victor Javier Vazquez Zamora
- Hospital de especialidades, General Manuel Ávila Camacho, Instituto Mexicano del Seguro Social, Puebla, Puebla, México
| | | | - Alvaro Jose Montiel-Jarquin
- Hospital de especialidades, General Manuel Ávila Camacho, Instituto Mexicano del Seguro Social, Puebla, Puebla, México
| | - Verónica Vallejo-Ruiz
- Centro de Investigación Biomédica de Oriente, Laboratory of Molecular Biology, Instituto Mexicano del Seguro Social, Metepec, Puebla, México
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Yeo D, Castelletti L, van Zandwijk N, Rasko JEJ. Hitting the Bull's-Eye: Mesothelin's Role as a Biomarker and Therapeutic Target for Malignant Pleural Mesothelioma. Cancers (Basel) 2021; 13:3932. [PMID: 34439085 PMCID: PMC8391149 DOI: 10.3390/cancers13163932] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 12/16/2022] Open
Abstract
Malignant pleural mesothelioma (MPM) is an aggressive cancer with limited treatment options and poor prognosis. MPM originates from the mesothelial lining of the pleura. Mesothelin (MSLN) is a glycoprotein expressed at low levels in normal tissues and at high levels in MPM. Many other solid cancers overexpress MSLN, and this is associated with worse survival rates. However, this association has not been found in MPM, and the exact biological role of MSLN in MPM requires further exploration. Here, we discuss the current research on the diagnostic and prognostic value of MSLN in MPM patients. Furthermore, MSLN has become an attractive immunotherapy target in MPM, where better treatment strategies are urgently needed. Several MSLN-targeted monoclonal antibodies, antibody-drug conjugates, immunotoxins, cancer vaccines, and cellular therapies have been tested in the clinical setting. The biological rationale underpinning MSLN-targeted immunotherapies and their potential to improve MPM patient outcomes are reviewed.
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Affiliation(s)
- Dannel Yeo
- Li Ka Shing Cell & Gene Therapy Program, The University of Sydney, Camperdown, NSW 2050, Australia; (D.Y.); (L.C.)
- Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia;
- Cell and Molecular Therapies, Royal Prince Alfred Hospital, Sydney Local Health District (SLHD), Camperdown, NSW 2050, Australia
| | - Laura Castelletti
- Li Ka Shing Cell & Gene Therapy Program, The University of Sydney, Camperdown, NSW 2050, Australia; (D.Y.); (L.C.)
- Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia;
- Cell and Molecular Therapies, Royal Prince Alfred Hospital, Sydney Local Health District (SLHD), Camperdown, NSW 2050, Australia
| | - Nico van Zandwijk
- Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia;
- Cell and Molecular Therapies, Royal Prince Alfred Hospital, Sydney Local Health District (SLHD), Camperdown, NSW 2050, Australia
- Concord Repatriation General Hospital, Sydney Local Health District (SLHD), Concord, NSW 2139, Australia
| | - John E. J. Rasko
- Li Ka Shing Cell & Gene Therapy Program, The University of Sydney, Camperdown, NSW 2050, Australia; (D.Y.); (L.C.)
- Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia;
- Cell and Molecular Therapies, Royal Prince Alfred Hospital, Sydney Local Health District (SLHD), Camperdown, NSW 2050, Australia
- Gene and Stem Cell Therapy Program, Centenary Institute, The University of Sydney, Camperdown, NSW 2050, Australia
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A knockout cell library of GPI biosynthetic genes for functional studies of GPI-anchored proteins. Commun Biol 2021; 4:777. [PMID: 34162996 PMCID: PMC8222316 DOI: 10.1038/s42003-021-02337-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 05/19/2021] [Indexed: 11/08/2022] Open
Abstract
Over 100 kinds of proteins are expressed as glycosylphosphatidylinositol (GPI)-anchored proteins (GPI-APs) on the cell surface in mammalian cells. GPI-APs possess unique properties in terms of their intracellular trafficking and association with lipid rafts. Although it is clear that GPI-APs play critical roles in various biological phenomena, it is poorly understood how the GPI moiety contributes to these mechanisms. More than 30 genes are involved in the correct biosynthesis of GPI-APs. We here constructed a cell library in which 32 genes involved in GPI biosynthesis were knocked out in human embryonic kidney 293 cells. Using the cell library, the surface expression and sensitivity to phosphatidylinositol-specific phospholipase C of GPI-APs were analyzed. Furthermore, we identified structural motifs of GPIs that are recognized by a GPI-binding toxin, aerolysin. The cell-based GPI-knockout library could be applied not only to basic researches, but also to applications and methodologies related to GPI-APs.
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10
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Chu J, Gao J, Wang J, Li L, Chen G, Dang J, Wang Z, Jin Z, Liu X. Mechanism of hydrogen on cervical cancer suppression revealed by high‑throughput RNA sequencing. Oncol Rep 2021; 46:141. [PMID: 34080660 PMCID: PMC8165587 DOI: 10.3892/or.2021.8092] [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: 12/10/2020] [Accepted: 04/14/2021] [Indexed: 12/09/2022] Open
Abstract
Cervical cancer is considered one of the diseases with the highest mortality among women and with limited treatment options. Hydrogen (H2) inhalation has been reported to have a variety of tumor-suppressive effects, but the exact mechanism remains unclear. In the present study, HeLa cervical cancer cells and HaCaT keratinocytes treated with H2, and a HeLa xenograft mouse model subjected to H2 inhalation were established. TUNEL, Cell Counting Kit-8 and Ki67 staining assays were used to detect cell apoptosis and proliferation. Oxidative stress was determined according to the levels of reactive oxygen species, malondialdehyde and superoxide dismutase. Tumor growth was recorded every 3 days, and the excised tumors were stained with hematoxylin and eosin. High-throughput RNA sequencing and subsequent Gene Ontology (GO) enrichment analysis were performed in HeLa-treated and un-treated HeLa cells. The expression of hypoxia-inducible factor (HIF)-1α and NF-κB p65 was verified by western blotting, immunohistochemistry and reverse transcription-quantitative PCR. The results revealed an increased apoptosis rate, and reduced cell proliferation and oxidative stress in H2-treated HeLa cells but not in HaCaT cells. Similarly, decreased tumor growth and cell proliferation, and enhanced cell apoptosis were observed in H2-treated HeLa tumors. RNA sequencing and GO analysis suggest that downregulated HIF1A (HIF-1α mRNA) and RelA (NF-κB p65) levels, and reduced NF-κB signaling were associated with the antitumor effect of H2. Finally, decreased HIF-1α and NF-κB p65 expression both at the transcriptional and translational levels were observed in H2-treated HeLa cells and in HeLa-derived tumors. In conclusion, the present study reveals a novel mechanism of H2 against cervical cancer, which may serve as a potential therapeutic target in clinical practice.
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Affiliation(s)
- Jing Chu
- Department of Obstetrics and Gynaecology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
| | - Jinghai Gao
- Department of Obstetrics and Gynaecology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
| | - Jing Wang
- Department of Obstetrics and Gynaecology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
| | - Lingling Li
- Department of Obstetrics and Gynaecology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
| | - Guoqiang Chen
- Department of Obstetrics and Gynaecology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
| | - Jianhong Dang
- Department of Obstetrics and Gynaecology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
| | - Zhifeng Wang
- Department of Obstetrics and Gynaecology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
| | - Zhijun Jin
- Department of Obstetrics and Gynaecology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
| | - Xiaojun Liu
- Department of Obstetrics and Gynaecology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
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Lazzerini L, Jöhrens K, Sehouli J, Cichon G. Favorable therapeutic response after anti-Mesothelin antibody-drug conjugate treatment requires high expression of Mesothelin in tumor cells. Arch Gynecol Obstet 2020; 302:1255-1262. [PMID: 32815024 PMCID: PMC7524828 DOI: 10.1007/s00404-020-05734-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 07/31/2020] [Indexed: 11/29/2022]
Abstract
PURPOSE The cell surface glycoprotein Mesothelin is overexpressed in ovarian, fallopian tube, endometrial, cervical and primary peritoneal cancer and, therefore, might become a particular interesting tumor target in gynecologic oncology. However, even in malignant tumors of the same entity the level of Mesothelin expression varies between individuals, hence it can be expected that the response to Mesothelin-targeting therapies will be variable as well. In this study we explored the therapeutic potency of a novel anti-Mesothelin antibody-drug conjugate (Anetumab ravtansine) as a function of Mesothelin expression in the targeted tumor cells. METHODS Anti-tumor activity studies were performed in human uterine xenograft tumor models that express Mesothelin at high, moderate or low levels. The antibody-drug conjugate (ADC) was applied in varying doses ranging from 2 to 15 mg/kg at variable intervals in tumor bearing SCID/beige mice and the impact on tumor growth was monitored. RESULTS The therapeutic response to the anti-Mesothelin ADC correlated closely with the level of Mesothelin expression in tumor cells. Within the applied dose levels complete tumor regression was achieved only in tumors which expressed Mesothelin at particularly high levels (Hela cell tumors). The application of high anti-Mesothelin ADC doses less frequently was more efficious than giving lower doses at a higher frequency. CONCLUSION The studies confirm the great therapeutic potential of Anetumab ravtansine. However, a favorable treatment outcome requires strong Mesothelin expression in tumor cells. Future clinical trials may benefit from a more rigorous selection of appropriate patients based on the level of Mesothelin expression in their tumor tissue. If, in addition, it is possible to better control side effects by introducing protective measures and by doing so to increase the maximum tolerated dose, Anetumab ravtansine has the potency to become a valuable therapeutic tool, especially in the field of gynecological oncology.
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Affiliation(s)
- Lea Lazzerini
- Department of Gynecology, Charité, Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12200, Berlin, Germany
| | - Korinna Jöhrens
- Department of Pathology, Universitätsklinikum Carl Gustav Carus Dresden, Schubertstrasse 15, 01307, Dresden, Germany
| | - Jalid Sehouli
- Department of Gynecology, Charité, Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12200, Berlin, Germany
| | - Günter Cichon
- Department of Gynecology, Charité, Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12200, Berlin, Germany.
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Cao S, Dong YH, Wang DF, Liu ZP. Tubulin Maytansine Site Binding Ligands and their Applications as MTAs and ADCs for Cancer Therapy. Curr Med Chem 2020; 27:4567-4576. [PMID: 32175831 DOI: 10.2174/0929867327666200316144610] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 02/26/2020] [Accepted: 02/27/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND Microtubule Targeting Agents (MTAs) represent the most successful anticancer drugs for cancer chemotherapy. Through interfering with the tubulin polymerization and depolymerization dynamics, MTAs influence intracellular transport and cell signal pathways, inhibit cell mitosis and cell proliferation, and induce cell apoptosis and death. The tubulin maytansine site binding agents are natural or nature-derived products that represent one type of the MTAs that inhibit tubulin polymerization and exhibit potent antitumor activity both in vitro and in vivo. They are used as Antibody-Drug Conjugates (ADCs) in cancer chemotherapy. METHODS Using SciFinder® as a tool, the publications about maytansine, its derivatives, maytansine binding site, maytansine site binding agents and their applications as MTAs for cancer therapy were surveyed with an exclusion on those published as patents. The latest progresses in clinical trials were obtained from the clinical trial web. RESULTS This article presents an introduction about MTAs, maytansine, maytansine binding site and its ligands, the applications of these ligands as MTAs and ADCs in cancer therapy. CONCLUSION The maytansine site binding agents are powerful MTAs for cancer chemotherapy. The maytansine site ligands-based ADCs are used in clinic or under clinical trials as cancer targeted therapy to improve their selectivity and to reduce their side effects. Further improvements in the delivery efficiency of the ADCs will benefit the patients in cancer targeted therapy.
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Affiliation(s)
- Shuo Cao
- Department of Medicinal Chemistry, Faculty of Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Yue-Hui Dong
- Jinan Vocational College of Nursing, Jinan 250102, China
| | - De-Feng Wang
- Department of Medicinal Chemistry, Faculty of Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Zhao-Peng Liu
- Department of Medicinal Chemistry, Faculty of Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
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