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Seadawy MG, Lotfy MM, Saeed AA, Ageez AM. Novel HER2-based multi-epitope vaccine (HER2-MEV) against HER2-positive breast cancer: In silico design and validation. Hum Immunol 2024; 85:110832. [PMID: 38905717 DOI: 10.1016/j.humimm.2024.110832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/10/2024] [Accepted: 06/10/2024] [Indexed: 06/23/2024]
Abstract
Breast cancer (BC) continues to be the malignancy with the highest diagnosis rate worldwide. Between 15 % and 30 % of BC patients show overexpressed human epidermal growth factor receptor 2 (HER2), which is linked to poor clinical results in terms of invasiveness and recurrence risk. Passive immunity-based therapeutic approaches for treating HER2-enriched BC, are not effective and significant problems need to be tackled. Constructing multi-epitope vaccines is favored over single-epitope vaccines due to its ability to induce immunity against a variety of antigenic targets which will improve the efficacy of the vaccine. The current study describes a multi-epitope vaccine from HER2 protein against HER2-positive BC using several immunoinformatic techniques to achieve a potent and durable immune response. Nine Cytotoxic T lymphocytes (CTL) and five Helper T lymphocytes (HTL) epitopes were predicted and validated from HER2 protein using in silico tools. The expressed protein of the designed vaccine is predicted to be highly thermostable with better solubility. The predicted vaccine 3D structure was validated by ProSA servers and by the ERRAT server. Molecular docking analysis revealed a high binding affinity and stability of the designed vaccine with MHCI and TLR-2, 4, 7, and 9 receptors. The analysis of the C-ImmSim server revealed that the novel vaccine construct had the ability to elicit robust anti-cancerous innate, humoral, and cell-mediated immune responses. The vaccine can be a suitable option for HER2-positive BC patients and other patients with HER2-positive cancers to evoke immune responses. However, in vitro and in vivo experiments are needed to assess its effectiveness and safety.
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Affiliation(s)
- Mohamed G Seadawy
- Biodefense Center for Infectious and Emerging Diseases, Ministry of Defense, Cairo, Egypt.
| | - Mai M Lotfy
- Cancer Biology Department, National Cancer Institute, Cairo University, Giza 12613, Egypt.
| | - Aya A Saeed
- Cancer Biology Department, National Cancer Institute, Cairo University, Giza 12613, Egypt.
| | - Amr M Ageez
- Faculty of Biotechnology, October University for Modern Sciences and Arts, MSA University, 6 October City 12451, Giza, Egypt.
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Chen X, Meng C, Wang X, Wu Z, Sun X, Sun C, Zheng L, Li W, Jia W, Tang T. Exploring CCL11 in breast cancer: unraveling its anticancer potential and immune modulatory effects involving the Akt-S6 signaling. J Cancer Res Clin Oncol 2024; 150:69. [PMID: 38305920 PMCID: PMC10837270 DOI: 10.1007/s00432-023-05600-6] [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: 11/07/2023] [Accepted: 12/25/2023] [Indexed: 02/03/2024]
Abstract
BACKGROUND CCL11, a chemokine known for recruiting immune cells to the tumor microenvironment (TME), has an unclear role in the context of its expression, patient prognosis, and the presence of tumor-infiltrating immune cells (TILs) in breast cancer. METHODS The expression of CCL11 in invasive breast cancer (BRCA) was analyzed using TCGA database. Survival curve and Cox regression analysis determined the potential of CCL11 as an independent prognostic indicator. GSEA performed functional analysis on genes related to CCL11. CIBERSORT algorithm quantified the infiltration level of immune cells with varying CCL11 expression. Lastly, the correlation between CCL11 expression and anticancer drug sensitivity was examined. Immunohistochemistry (IHC) and qRT-PCR confirmed CCL11 expression in clinical tissue samples. The anti-tumor efficacy of CCL11 was investigated using CCK-8, plate formation, transwell assay, and Western blot. RESULTS CCL11 expression was elevated in BRCA tumor tissues compared to adjacent normal tissues. Recurrence-free survival (RFS) was longer in patients with high expression of CCL11. Enrichment and co-expression analyses revealed CCL11's association with numerous immune-related signaling pathways and genes. Validation studies confirmed high CCL11 expression in breast cancer tissues. In vitro experiments substantiated CCL11's anticancer effects in BRCA. CONCLUSION CCL11 expression correlates with immune cell infiltration in breast cancer, indicating its potential as a prognostic biomarker for BRCA.
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Affiliation(s)
- Xiao Chen
- Department of Thyroid and Breast Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Chenxu Meng
- Department of Thyroid and Breast Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | | | - Zanhui Wu
- Anhui Medical University, Hefei, China
| | - Xinyue Sun
- Department of Thyroid and Breast Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Chenyu Sun
- Department of Thyroid and Breast Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Lu Zheng
- Department of Thyroid and Breast Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wanwan Li
- Department of Thyroid and Breast Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - WenJun Jia
- Department of Thyroid and Breast Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - Tong Tang
- Department of Thyroid and Breast Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.
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Vajari MK, Sanaei MJ, Salari S, Rezvani A, Ravari MS, Bashash D. Breast cancer vaccination: Latest advances with an analytical focus on clinical trials. Int Immunopharmacol 2023; 123:110696. [PMID: 37494841 DOI: 10.1016/j.intimp.2023.110696] [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: 05/25/2023] [Revised: 07/13/2023] [Accepted: 07/19/2023] [Indexed: 07/28/2023]
Abstract
Breast cancer (BC) is one of the main causes of cancer-related death worldwide. The heterogenicity of breast tumors and the presence of tumor resistance, metastasis, and disease recurrence make BC a challenging malignancy. A new age in cancer treatment is being ushered in by the enormous success of cancer immunotherapy, and therapeutic cancer vaccination is one such area of research. Nevertheless, it has been shown that the application of cancer vaccines in BC as monotherapy could not induce satisfying anti-tumor immunity. Indeed, the application of various vaccine platforms as well as combination therapies like immunotherapy could influence the clinical benefits of BC treatment. We analyzed the clinical trials of BC vaccination and revealed that the majority of trials were in phase I and II meaning that the BC vaccine studies lack favorable outcomes or they need more development. Furthermore, peptide- and cell-based vaccines are the major platforms utilized in clinical trials according to our analysis. Besides, some studies showed satisfying outcomes regarding carbohydrate-based vaccines in BC treatment. Recent advancements in therapeutic vaccines for breast cancer were promising strategies that could be accessible in the near future.
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Affiliation(s)
- Mahdi Kohansal Vajari
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad-Javad Sanaei
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sina Salari
- Department of Medical Oncology-Hematology, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Rezvani
- Department of Internal Medicine, Hematology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehrnaz Sadat Ravari
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Davood Bashash
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Tierno D, Grassi G, Scomersi S, Bortul M, Generali D, Zanconati F, Scaggiante B. Next-Generation Sequencing and Triple-Negative Breast Cancer: Insights and Applications. Int J Mol Sci 2023; 24:ijms24119688. [PMID: 37298642 DOI: 10.3390/ijms24119688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 05/29/2023] [Accepted: 06/01/2023] [Indexed: 06/12/2023] Open
Abstract
The poor survival of triple-negative breast cancer (TNBC) is due to its aggressive behavior, large heterogeneity, and high risk of recurrence. A comprehensive molecular investigation of this type of breast cancer using high-throughput next-generation sequencing (NGS) methods may help to elucidate its potential progression and discover biomarkers related to patient survival. In this review, the NGS applications in TNBC research are described. Many NGS studies point to TP53 mutations, immunocheckpoint response genes, and aberrations in the PIK3CA and DNA repair pathways as recurrent pathogenic alterations in TNBC. Beyond their diagnostic and predictive/prognostic value, these findings suggest potential personalized treatments in PD -L1-positive TNBC or in TNBC with a homologous recombination deficit. Moreover, the comprehensive sequencing of large genomes with NGS has enabled the identification of novel markers with clinical value in TNBC, such as AURKA, MYC, and JARID2 mutations. In addition, NGS investigations to explore ethnicity-specific alterations have pointed to EZH2 overexpression, BRCA1 alterations, and a BRCA2-delaAAGA mutation as possible molecular signatures of African and African American TNBC. Finally, the development of long-read sequencing methods and their combination with optimized short-read techniques promise to improve the efficiency of NGS approaches for future massive clinical use.
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Affiliation(s)
- Domenico Tierno
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Gabriele Grassi
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Serena Scomersi
- Breast Unit-Azienda Sanitaria Universitaria Integrata Giuliano Isontina ASUGI, University of Trieste, 34149 Trieste, Italy
| | - Marina Bortul
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy
| | - Daniele Generali
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy
- Azienda Socio-Sanitaria Territoriale di Cremona-ASST, Breast Cancer Unit and Translational Research Unit, 26100 Cremona, Italy
| | - Fabrizio Zanconati
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy
| | - Bruna Scaggiante
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
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Tan Q, Chi Y, Su M, Zhou J, Zhou D, Zheng F, Man X, Sun S, Huang J, Li H. Potential predictive value of circulating tumor DNA (ctDNA) mutations for the efficacy of immune checkpoint inhibitors in advanced triple-negative breast cancer. Front Genet 2023; 14:1125970. [PMID: 37007962 PMCID: PMC10060982 DOI: 10.3389/fgene.2023.1125970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 02/27/2023] [Indexed: 03/17/2023] Open
Abstract
Background: In recent years, tumor immunotherapy has become a viable treatment option for triple negative breast cancer (TNBC). Among these, immune checkpoint inhibitors (ICIs) have demonstrated good efficacy in advanced TNBC patients with programmed death-ligand 1 (PD-L1) positive expression. However, only 63% of PD-L1-positive individuals showed any benefit from ICIs. Therefore, finding new predictive biomarkers will aid in identifying patients who are likely to benefit from ICIs. In this study, we used liquid biopsies and next-generation sequencing (NGS) to dynamically detect changes in circulating tumor DNA (ctDNA) in the blood of patients with advanced TNBC treated with ICIs and focused on its potential predictive value.Methods: From May 2018 to October 2020, patients with advanced TNBC treated with ICIs at Shandong Cancer Hospital were included prospectively. Patient blood samples were obtained at the pretreatment baseline, first response evaluation, and disease progression timepoints. Furthermore, 457 cancer-related genes were evaluated by NGS, and patients’ ctDNA mutations, gene mutation rates, and other indicators were determined and coupled with clinical data for statistical analysis.Results: A total of 11 TNBC patients were included in this study. The overall objective response rate (ORR) was 27.3%, with a 6.1-month median progression-free survival (PFS) (95% confidence interval: 3.877–8.323 months). Of the 11 baseline blood samples, 48 mutations were found, with the most common mutation types being frame shift indels, synonymous single-nucleotide variations (SNVs), frame indel missenses, splicing, and stop gains. Additionally, univariate Cox regression analysis revealed that advanced TNBC patients with one of 12 mutant genes (CYP2D6 deletion and GNAS, BCL2L1, H3F3C, LAG3, FGF23, CCND2, SESN1, SNHG16, MYC, HLA-E, and MCL1 gain) had a shorter PFS with ICI treatment (p < 0.05). To some extent, dynamic changes of ctDNA might indicate the efficacy of ICIs.Conclusion: Our data indicate that ICI efficacy in patients with advanced TNBC may be predicted by 12 mutant ctDNA genes. Additionally, dynamic alterations in peripheral blood ctDNA might be used to track the effectiveness of ICI therapy in those with advanced TNBC.
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Affiliation(s)
- Qiaorui Tan
- Department of Medical Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Yajing Chi
- Department of Medical Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
- School of Medicine, Nankai University, Tianjin, China
| | - Mu Su
- Berry Oncology Corporation, Beijing, China
| | | | - Dongdong Zhou
- Department of Medical Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Fangchao Zheng
- Department of Medical Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Xiaochu Man
- Department of Medical Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Shujuan Sun
- Department of Medical Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Jie Huang
- Department of Medical Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Huihui Li
- Department of Medical Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
- *Correspondence: Huihui Li,
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Tian H, Cao J, Li B, Nice EC, Mao H, Zhang Y, Huang C. Managing the immune microenvironment of osteosarcoma: the outlook for osteosarcoma treatment. Bone Res 2023; 11:11. [PMID: 36849442 PMCID: PMC9971189 DOI: 10.1038/s41413-023-00246-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/17/2022] [Accepted: 12/29/2022] [Indexed: 03/01/2023] Open
Abstract
Osteosarcoma, with poor survival after metastasis, is considered the most common primary bone cancer in adolescents. Notwithstanding the efforts of researchers, its five-year survival rate has only shown limited improvement, suggesting that existing therapeutic strategies are insufficient to meet clinical needs. Notably, immunotherapy has shown certain advantages over traditional tumor treatments in inhibiting metastasis. Therefore, managing the immune microenvironment in osteosarcoma can provide novel and valuable insight into the multifaceted mechanisms underlying the heterogeneity and progression of the disease. Additionally, given the advances in nanomedicine, there exist many advanced nanoplatforms for enhanced osteosarcoma immunotherapy with satisfactory physiochemical characteristics. Here, we review the classification, characteristics, and functions of the key components of the immune microenvironment in osteosarcoma. This review also emphasizes the application, progress, and prospects of osteosarcoma immunotherapy and discusses several nanomedicine-based options to enhance the efficiency of osteosarcoma treatment. Furthermore, we examine the disadvantages of standard treatments and present future perspectives for osteosarcoma immunotherapy.
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Affiliation(s)
- Hailong Tian
- grid.13291.380000 0001 0807 1581State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041 China
| | - Jiangjun Cao
- grid.13291.380000 0001 0807 1581State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041 China
| | - Bowen Li
- grid.13291.380000 0001 0807 1581State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041 China
| | - Edouard C. Nice
- grid.1002.30000 0004 1936 7857Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800 Australia
| | - Haijiao Mao
- Department of Orthopaedic Surgery, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang, 315020, People's Republic of China.
| | - Yi Zhang
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Canhua Huang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, China.
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Potent anti-tumor immune response and tumor growth inhibition induced by HER2 subdomain fusion protein in a mouse tumor model. J Cancer Res Clin Oncol 2022; 149:2437-2450. [PMID: 35737089 DOI: 10.1007/s00432-022-04084-0] [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: 04/12/2022] [Accepted: 05/20/2022] [Indexed: 10/17/2022]
Abstract
PURPOSE Several approaches have so far been employed to establish anti-tumor immunity by targeting HER2 protein. Active immunization with recombinant HER2 subdomains has previously been demonstrated to induce potent immune response and tumor growth inhibition. In the present study, we investigated the immunogenicity and tumor inhibitory effect of a fusion protein consisting of human HER2 extracellular subdomain (ECD-DI + II) together with T-helper cell epitopes of Tetanus toxin (p2 and p30). METHODS BALB/c mice were immunized with two recombinant proteins (DI + II and p2p30-DI + II) emulsified in 4 different adjuvants. Anti-DI + II antibody response, cytokine profile, frequency of splenic CD25+FOXP3+ regulatory T cells (Tregs) and CD8+CD107a+ cytotoxic T lymphocytes (CTLs) were assessed in the immunized mice. To assess the anti-tumor effect, the immunized mice were subcutaneously challenged with HER2-overexpressing tumor cells and the tumor growth was determined. RESULTS Both recombinant proteins were able to induce comparable levels of ECD-DI + II-specific antibodies. Immunization with p2p30-DI + II resulted in a significant increase in the level of Interferon-gamma (IFN-γ) secretion compared to DI + II protein and significantly higher frequency of CTLs and lower frequency of Tregs. The number of mice that remained tumor-free until day 120 was significantly higher in p2p30-DI + II vaccinated groups. CONCLUSIONS Our data suggest that the p2p30-DI + II fusion protein together with CpG adjuvant induces more potent anti-tumor immune responses in a mouse tumor model. Accordingly, this formulation might be considered as a potential immunotherapeutic approach in HER2+ cancers.
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Tian J, Liu Y, Zhang T, Yue L, Xiao Y, Guo C. LAG-3 is a promising inhibitory immune checkpoint for antitumor immunotherapy. Expert Rev Anticancer Ther 2022; 22:289-296. [PMID: 35132925 DOI: 10.1080/14737140.2022.2039124] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
INTRODUCTION Lymphocyte activation gene-3 (LAG-3) is a member of the immunoglobulin superfamily. Engagement of LAG-3 by its ligands to trigger downstream signaling can inhibit immune responses and regulate the pathogenesis of many diseases, including cancer and inflammatory diseases. AREAS COVERED We used keywords to search for relevant publications in PubMed and information on websites. After systematic analysis, we discuss the biological characteristics of LAG-3 and its ligands, LAG-3 related signaling, its roles in the pathogenesis of tumors, and its blockages for the treatment of cancers, as well as current challenges and future directions of research. EXPERT OPINION Although the mechanisms underlying the action of LAG-3/ligand-related signaling in tumor development are not fully understood, advances in scientific research and LAG-3-based immunotherapies are promising. Further studies to explore its biological roles and molecular mechanisms may aid in developing new LAG-3- and ligand-based therapeutic drugs to benefit patients with different types of cancers.
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Affiliation(s)
- Jin Tian
- Institute of Clinical Medicine, Qingdao University Medical College, Qingdao, China.,Department of Oncology, Qingdao Municipal Hospital, Qingdao, China
| | - Yang Liu
- Department of Oncology, Qingdao Municipal Hospital, Qingdao, China
| | - TengLong Zhang
- Department of Oncology, Qingdao Municipal Hospital, Qingdao, China
| | - Lu Yue
- Department of Oncology, Qingdao Municipal Hospital, Qingdao, China
| | - YaNan Xiao
- Department of Endocrinology, Qingdao Municipal Hospital West Campus, Qingdao, China
| | - ChengYe Guo
- Department of Oncology, Qingdao Municipal Hospital, Qingdao, China
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Shi W, Qiu Q, Feng Z, Tong Z, Guo W, Zou F, Yue N, Huang W, Qian H. Design, synthesis and immunological evaluation of self-assembled antigenic peptides from dual-antigen targets: a broad-spectrum candidate for an effective antibreast cancer therapy. J Immunother Cancer 2021; 9:jitc-2021-002523. [PMID: 34083420 PMCID: PMC8183215 DOI: 10.1136/jitc-2021-002523] [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] [Accepted: 05/02/2021] [Indexed: 12/11/2022] Open
Abstract
Background Considering the narrow immune response spectrum of a single epitope, and the nanoparticles (NPs) as a novel adjuvant can achieve efficient delivery of antigenic peptides safely, a nano-system (denoted as DSPE-PEG-Man@EM-NPs) based on cathepsin B-responsive antigenic peptides was designed and synthesized. Methods Highly affinitive antigenic peptides were delivered by self-assembled NPs, and targeted erythrocyte membranes acted as a peptide carrier to improve antigenic peptides presentation and to strengthen cytotoxic T-cells reaction. Cathepsin B coupling could release antigenic peptides rapidly in dendritic cells. Results Evaluations showed that DSPE-PEG-Man@EM-NPs had obvious inhibitory effects towards both MCF-7 and MDA-MB-231 human breast cancer cell lines. Conclusion Overall, this strategy provides a novel strategy for boosting cytotoxic T lymphocytes response, thereby expanding the adaptation range of tumor antigenic peptides and improving the therapeutic effect of tumor immunotherapy with nanomedicine.
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Affiliation(s)
- Wei Shi
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Qianqian Qiu
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China.,School of Pharmacy, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers' University, Yancheng 224002, China
| | - Ziying Feng
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Zhenzhen Tong
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Weiwei Guo
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Feng Zou
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Na Yue
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Wenlong Huang
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China.,Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, Jiangsu, China
| | - Hai Qian
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China .,Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, Jiangsu, China
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Zam W, Ali L. Immune checkpoint inhibitors in the treatment of cancer. ACTA ACUST UNITED AC 2021; 17:103-113. [PMID: 33823768 DOI: 10.2174/1574884716666210325095022] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 01/07/2021] [Accepted: 01/22/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Immunotherapy drugs, known as immune checkpoint inhibitors (ICIs), work by blocking checkpoint proteins from binding with their partner proteins. The two main pathways that are specifically targeted in clinical practice are cytotoxic T-lymphocyte antigen-4 (CTLA-4) and programmed cell death protein 1 (PD-1) that showed potent immune-modulatory effects through their function as negative regulators of T cell activation. METHODS In view of the rapid and extensive development of this research field, we conducted a comprehensive review of the literature and update on the use of CTLA-4, PD-1 and PD-L1 targeted therapy in the treatment of several types of cancer including melanoma, non-small-cell lung carcinoma, breast cancer, hepatocellular carcinoma, hodgkin lymphoma, cervical cancer, head and neck squamous cell carcinoma. RESULTS Based on the last updated list released on March 2019, seven ICIs are approved by the FDA including ipilimumab, pembrolizumab, nivolumab, atezolizumab, avelumab, durvalumab, and cemiplimab. CONCLUSION This review also highlighted the most common adverse effects caused by ICIs and which affect people in different ways.
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Affiliation(s)
- Wissam Zam
- Department of Analytical and Food Chemistry, Faculty of Pharmacy, Al-Wadi International University, Homs. Syrian Arab Republic
| | - Lina Ali
- Department of Analytical and Food Chemistry, Faculty of Pharmacy, Tartous University, Tartous. Syrian Arab Republic
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11
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Wu S, Shi X, Wang J, Wang X, Liu Y, Luo Y, Mao F, Zeng X. Triple-Negative Breast Cancer: Intact Mismatch Repair and Partial Co-Expression of PD-L1 and LAG-3. Front Immunol 2021; 12:561793. [PMID: 33717059 PMCID: PMC7943629 DOI: 10.3389/fimmu.2021.561793] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 01/11/2021] [Indexed: 12/15/2022] Open
Abstract
Background and Aim Poor response to immune checkpoint inhibitors (ICIs) has been observed in most triple-negative breast cancer (TNBC) cases (around 80%). Our aim was to investigate the status of mismatch repair (MMR), microsatellite instability (MSI), programmed death-ligand 1 (PD-L1), and lymphocyte-activation gene 3 (LAG-3) in TNBC. Methods A total of 74 TNBC samples were retrospectively analyzed. MMR and MSI were evaluated by immunohistochemistry (IHC) and polymerase chain reaction (PCR) using Promega 1.2 and NCI panels, respectively. PD-L1, LAG-3, and CD8 expression was assessed by IHC. Results None of the cases demonstrated deficient MMR (dMMR) or MSI. In total, 43/74 cases (58.1%) were PD-L1+, including 1 tumor PD-L1+, 25 tumor-infiltrating lymphocytes (TILs) PD-L1+, and 17 cases involving concurrence of tumor and TIL PD-L1+. The rate of TIL PD-L1+ was remarkably higher than that of tumor PD-L1+ (P<0.001). We identified 20 LAG-3+ cases (27.0%, 20/74), all of which were PD-L1+. Co-expression of PD-L1 and LAG-3 was noted in 46.5% (20/43) of the PD-L1+ population. In the LAG-3+ subtype (co-expression of PD-L1 and LAG-3), high correlation between TILs PD-L1+ and LAG-3+ was observed (P<0.01). A high frequency of CD8+ (98.6%, 73/74) was observed. Conclusion dMMR/MSI characteristics may not be a practical predictive marker for ICIs in TNBC. PD-L1+ is more common in TILs than in tumors. In the PD-L1+ population, approximately half of the cases showed LAG-3 co-expression. For patients with a poor response to PD-1(L1) mono ICI, dual blockade of PD-1(L1) and LAG-3 may be a viable option for the management of TNBC.
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Affiliation(s)
- Shafei Wu
- Department of Pathology, Peking Union Medical College Hospital, Molecular Pathology Research Center, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaohua Shi
- Department of Pathology, Peking Union Medical College Hospital, Molecular Pathology Research Center, Chinese Academy of Medical Sciences, Beijing, China
| | - Jing Wang
- Department of Pathology, Peking Union Medical College Hospital, Molecular Pathology Research Center, Chinese Academy of Medical Sciences, Beijing, China
| | - Xuefei Wang
- Department of Breast Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Yuanyuan Liu
- Department of Pathology, Peking Union Medical College Hospital, Molecular Pathology Research Center, Chinese Academy of Medical Sciences, Beijing, China
| | - Yufeng Luo
- Department of Pathology, Peking Union Medical College Hospital, Molecular Pathology Research Center, Chinese Academy of Medical Sciences, Beijing, China
| | - Feng Mao
- Department of Breast Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Xuan Zeng
- Department of Pathology, Peking Union Medical College Hospital, Molecular Pathology Research Center, Chinese Academy of Medical Sciences, Beijing, China
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Kumrić M, Tičinović Kurir T, Borovac JA, Božić J. The Role of Natural Killer (NK) Cells in Acute Coronary Syndrome: A Comprehensive Review. Biomolecules 2020; 10:E1514. [PMID: 33167533 PMCID: PMC7694449 DOI: 10.3390/biom10111514] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/31/2020] [Accepted: 11/03/2020] [Indexed: 12/13/2022] Open
Abstract
With poor outcomes and an immense financial burden, acute coronary syndrome (ACS) and its ischemic repercussions still present a major global health problem. Unfavorable outcomes seem to be mainly due to adverse cardiac remodeling. Since the inflammatory response takes an important role in remodeling secondary to myocardial infarction (MI), and as inflammation in this manner has not been completely elucidated, we attempted to give rise to a further understanding of ACS pathophysiology. Hence, in this review, we integrated current knowledge of complex communication networks between natural killer (NK) cells and immune and resident heart cells in the context of ACS. Based on available data, the role of NK cells seems to be important in the infarcted myocardium, where it affects heart remodeling. On the other hand, in atherosclerotic plaque, NK cells seem to be mere passers-by, except in the case of chronic infections by atherogenic pathogens. In that case, NK cells seem to support proinflammatory milieu. NK cell research is challenging due to ethical reasons, convergent evolution, and phenotypic diversity among individuals. Therefore, we argue that further research of NK cells in ACS is valuable, given their therapeutic potential in improving postischemic heart remodeling.
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Affiliation(s)
- Marko Kumrić
- Department of Pathophysiology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia; (M.K.); (T.T.K.); (J.A.B.)
| | - Tina Tičinović Kurir
- Department of Pathophysiology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia; (M.K.); (T.T.K.); (J.A.B.)
- Endocrinology Clinic, University Hospital of Split, Spinčićeva 1, 21000 Split, Croatia
| | - Josip A. Borovac
- Department of Pathophysiology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia; (M.K.); (T.T.K.); (J.A.B.)
- Institute of Emergency Medicine of Split-Dalmatia County (ZHM SDZ), Spinčićeva 1, 21000 Split, Croatia
| | - Joško Božić
- Department of Pathophysiology, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia; (M.K.); (T.T.K.); (J.A.B.)
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13
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Bastaki S, Irandoust M, Ahmadi A, Hojjat-Farsangi M, Ambrose P, Hallaj S, Edalati M, Ghalamfarsa G, Azizi G, Yousefi M, Chalajour H, Jadidi-Niaragh F. PD-L1/PD-1 axis as a potent therapeutic target in breast cancer. Life Sci 2020; 247:117437. [PMID: 32070710 DOI: 10.1016/j.lfs.2020.117437] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 02/03/2020] [Accepted: 02/14/2020] [Indexed: 12/11/2022]
Abstract
Although both the incidence and the mortality rate of breast cancer is rising, there is no potent and practical option for the treatment of these patients, particularly in advanced stages. One of the most critical challenges for treatment is the presence of complicated and extensive tumor escape mechanisms in the tumor microenvironment. Immune checkpoint molecules are of the main immunosuppressive mechanisms used by cancerous cells to block anti-cancer immune responses. Among these molecules, PD-1 (Programmed cell death) and PD-L1 (programmed cell death-ligand 1) have been considered as worthy therapeutic targets for breast cancer therapy. In this review, we intend to discuss the immunobiology and signaling of the PD-1/PD-L1 axis and highlight its importance as a worthy therapeutic target in breast cancer. We believe that the prognostic value of PD-L1 depends on the breast cancer subtype. Moreover, the combination of PD-1/PD-L1 targeting with immune-stimulating vaccines can be considered as an effective therapeutic strategy in breast cancer.
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Affiliation(s)
- Shima Bastaki
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Biology, Faculty of Basic Sciences, Azarbaijan Shahid Madani University, East Azarbaijan, Iran
| | - Mahzad Irandoust
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Armin Ahmadi
- Department of Chemical and Materials Engineering, The University of Alabama in Huntsville, Alabama 35899, USA
| | - Mohammad Hojjat-Farsangi
- Bioclinicum, Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden; The Persian Gulf Marine Biotechnology Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran
| | | | - Shahin Hallaj
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Edalati
- Department of Laboratory Sciences, Paramedical Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ghasem Ghalamfarsa
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Gholamreza Azizi
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj. Iran
| | - Mehdi Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hengameh Chalajour
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Farhad Jadidi-Niaragh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
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14
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Arab A, Yazdian-Robati R, Behravan J. HER2-Positive Breast Cancer Immunotherapy: A Focus on Vaccine Development. Arch Immunol Ther Exp (Warsz) 2020; 68:2. [PMID: 31915932 PMCID: PMC7223380 DOI: 10.1007/s00005-019-00566-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 12/16/2019] [Indexed: 02/07/2023]
Abstract
Clinical progress in the field of HER2-positive breast cancer therapy has been dramatically improved by understanding of the immune regulatory mechanisms of tumor microenvironment. Passive immunotherapy utilizing recombinant monoclonal antibodies (mAbs), particularly trastuzumab and pertuzumab has proved to be an effective strategy in HER2-positive breast cancer treatment. However, resistance to mAb therapy and relapse of disease are still considered important challenges in clinical practice. There are increasing reports on the induction of cellular and humoral immune responses in HER2-positive breast cancer patients. More recently, increasing efforts are focused on using HER2-derived peptide vaccines for active immunotherapy. Here, we discuss the development of various HER2-derived vaccines tested in animal models and human clinical trials. Different formulations and strategies to improve immunogenicity of the antigens in animal studies are also discussed. Furthermore, other immunotherapeutic approaches to HER2 breast cancer including, CTLA-4 inhibitors, immune checkpoint inhibitors, anti PD-1/PD-L1 antibodies are presented.
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Affiliation(s)
- Atefeh Arab
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Rezvan Yazdian-Robati
- Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Javad Behravan
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. .,School of Pharmacy, University of Waterloo, Waterloo, ON, Canada. .,Theraphage Inc., Kitchener, ON, Canada.
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15
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Qi X, Wang K, Sun D, Zhang L. Does Choice of Reconstruction Type Affect Survival in Patients With Metastatic Breast Cancer? J Surg Res 2019; 247:479-489. [PMID: 31668432 DOI: 10.1016/j.jss.2019.09.057] [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: 03/25/2019] [Revised: 08/02/2019] [Accepted: 09/25/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND To compare the breast cancer-specific survival (BCSS) and overall survival (OS) between patients who underwent implant or tissue reconstruction after mastectomy with distant metastatic breast cancer (MBC). MATERIALS AND METHODS Using the Surveillance, Epidemiology, and End Results database, we enrolled 371 female MBC cases diagnosed during the years 2004-2014. Patients were subdivided into implant (176) and tissue groups (195) for survival comparison between the two groups. The end points were BCSS and OS. Comparisons of the distribution of clinicopathologic characteristics were evaluated by chi-square test and Fisher exact test. Survival outcomes were compared by Kaplan-Meier model and multivariate Cox regression model for known clinicopathologic variables in both the entire population and in the reconstruction cohorts. RESULTS In the entire cohort, patients with implant exhibited distinctly better BCSS (log rank, P = 0.002) and OS (log rank, P = 0.001) than patients with tissue reconstruction. Multivariate Cox regression model revealed that patients, who received prosthetic implants, were married, and progesterone receptor-positive group showed better survival rates in BCSS and OS. In addition, after stratification of the implant group and tissue groups according to clinicopathologic variables, the survival rate of patients in the implant group was higher than that in the tissue reconstruction group under the influence of factors, such as married, estrogen receptor-negative, nonradiotherapy, and chemotherapy. CONCLUSIONS Our study provides further survival evidence supporting the practice of mastectomy with prosthetic implant reconstruction in patients with MBC under certain conditions.
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Affiliation(s)
- Xin Qi
- Department of Breast Surgery, China-Japan Union Hospital, Jilin University, Changchun, Jilin, China
| | - Keren Wang
- Department of Breast Surgery, China-Japan Union Hospital, Jilin University, Changchun, Jilin, China
| | - Denghua Sun
- Department of Breast Surgery, China-Japan Union Hospital, Jilin University, Changchun, Jilin, China
| | - Le Zhang
- Department of Breast Surgery, China-Japan Union Hospital, Jilin University, Changchun, Jilin, China.
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16
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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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Qiao X, Xu D, Sun D, Sun S, Huang Z, Cui W. Association analysis of interleukin-18 gene promoter region polymorphisms and susceptibility to sporadic breast cancer in Chinese Han women. J Clin Lab Anal 2018; 32:e22591. [PMID: 29926984 DOI: 10.1002/jcla.22591] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 05/29/2018] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Interleukin-18-137G/C, -607G/T polymorphisms play multiple roles in various cancers. However, studies focused on its involvement in breast cancer remain controversial, and no study has taken the interaction between interleukin-18 (IL-18) gene polymorphism and body mass index (BMI), menopause into consideration. The study investigated the association between IL-18-137, -607 polymorphisms and risk of breast cancer and a possible interaction between the 2 single nucleotide polymorphisms (SNPs) and BMI, menopause in Chinese Han woman. METHODS A total of 488 participants, including 178 patients with breast cancer, 150 patients with benign breast disease and 160 healthy controls were recruited for this study. Polymerase chain reaction (PCR)-direct sequencing technology was used to identify the genotypes. RESULTS 137 G/C genotype can decrease the risk of breast cancer (OR = 0.54, 95% CI: 0.31-0.93; P = .025). In benign group, subjects with G/C genotype of IL-18-137G/C polymorphism had a 1.89-fold increased risk of developing breast cancer (95% CI = 1.05-3.41; P = .032). Among postmenopausal subjects, people with G/T genotype of IL-18-607 polymorphism had a 7.97-fold increased risk of lymph node metastasis compared with those with T/T homozygotes (95% CI = 1.95-32.65; P = .0045). Among Overweight and obese patients with breast cancer (BMI ≥ 24), people with G/T genotype of IL-18-607 polymorphism had a 5.45-fold increased risk of lymph node metastasis compared with those with T/T homozygotes (95% CI = 1.74-17.06; P = .034). CONCLUSIONS IL-18-137 G/C genotype may be a protective factor for healthy group, but a risk factor for benign group. IL-18-607 G/T genotype have an interaction with menopausal and BMI. The synergetic effect can further increase the risk of lymph node metastasis for breast cancer patients.
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Affiliation(s)
- Xuefeng Qiao
- Department of Clinical Laboratory, Beijing Meitan General Hospital, Beijing, China
| | - Danfei Xu
- Clinical Laboratory, Peking Union Medical College, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Dandan Sun
- Clinical Laboratory, Peking Union Medical College, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Sijin Sun
- Eight-Year Program of Clinical Medicine, Peking Union Medical College, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Zhiping Huang
- Heart Center, Beijing Meitan General Hospital, Beijing, China
| | - Wei Cui
- Clinical Laboratory, Peking Union Medical College, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences, Beijing, China
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PD-1 blockade in combination with zoledronic acid to enhance the antitumor efficacy in the breast cancer mouse model. BMC Cancer 2018; 18:669. [PMID: 29921237 PMCID: PMC6009040 DOI: 10.1186/s12885-018-4412-8] [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: 10/19/2017] [Accepted: 04/19/2018] [Indexed: 01/20/2023] Open
Abstract
Background Blockade of PD-1 receptor may provide proof of concepts for the activity of an immune-modulation approach for the treatment of breast cancer (BC). Zoledronic acid (ZA) has been proven to inhibit angiogenesis, invasion, and adhesion of tumor cells. The aim of this study was to investigate the potential of monoclonal antibody against T cell checkpoint PD-1 in combination with chemotherapeutic drug ZA in BC mouse model. Methods The 4 T1-fLuc mouse BC model was used in this study. The anti-tumor efficacy of anti-PD-1 antibody alone or in combination with ZA was monitored by measuring bioluminescence imaging (BLI) and tumor volume. At the end of study, the flow cytometry was used to determine the immune cell population in tumors after different treatment. Results The results showed that mice treated with the combination therapy of anti-PD-1 antibody plus ZA exhibited better antitumor response compared to untreated controls or single therapy with no obvious toxicity. Conclusion Our study provides preclinical evidence for the enhanced BC treatment benefit through targeting co-signal molecules by combining anti-PD-1 antibody plus ZA treatment.
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Tosello-Trampont A, Surette FA, Ewald SE, Hahn YS. Immunoregulatory Role of NK Cells in Tissue Inflammation and Regeneration. Front Immunol 2017; 8:301. [PMID: 28373874 PMCID: PMC5357635 DOI: 10.3389/fimmu.2017.00301] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 03/03/2017] [Indexed: 12/17/2022] Open
Abstract
NK cells represent an important first line of defense against viral infection and cancer and are also involved in tissue homeostasis. Studies of NK cell activation in the last decade have revealed that they are able to respond to the inflammatory stimuli evoked by tissue damage and contribute to both progression and resolution of diseases. Exacerbation of the inflammatory response through interactions between immune effector cells facilitates the progression of non-alcoholic fatty liver disease (NAFLD) into steatosis, cirrhosis, and hepatocellular carcinoma (HCC). When hepatic damage is incurred, macrophage activation is crucial for initiating cross talk with neighboring cells present in the liver, including hepatocytes and NK cells, and the importance of this interaction in shaping the immune response in liver disease is increasingly recognized. Inflicted structural damage can be in part regenerated via the process of self-limiting fibrosis, though persistent hepatic damage will lead to chronic fibrosis and loss of tissue organization and function. The cytotoxic activity of NK cells plays an important role in inducing hepatic stellate cell apoptosis and thus curtailing the progression of fibrosis. Alternatively, in some diseases, such as HCC, NK cells may become dysregulated, promoting an immunosuppressive state where tumors are able to escape immune surveillance. This review describes the current understanding of the contributions of NK cells to tissue inflammation and metabolic liver diseases and the ongoing effort to develop therapeutics that target the immunoregulatory function of NK cells.
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Affiliation(s)
| | - Fionna A Surette
- Beirne B. Carter Center for Immunology Research , Charlottesville, VA , USA
| | - Sarah E Ewald
- Beirne B. Carter Center for Immunology Research, Charlottesville, VA, USA; Department of Microbiology, University of Virginia, Charlottesville, VA, USA
| | - Young S Hahn
- Beirne B. Carter Center for Immunology Research, Charlottesville, VA, USA; Department of Microbiology, University of Virginia, Charlottesville, VA, USA
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PD-L1 is a critical mediator of regulatory B cells and T cells in invasive breast cancer. Sci Rep 2016; 6:35651. [PMID: 27762298 PMCID: PMC5071845 DOI: 10.1038/srep35651] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 09/29/2016] [Indexed: 12/23/2022] Open
Abstract
Regulatory T cells (Tregs), a key mediator in regulating anti-tumor immune suppression, tumor immune escape, metastasis and relapse, are considered an important therapeutic target in immunotherapy of human cancers. In the present investigation, elevated CD19+ CD24+ CD38+ regulatory B cells (Bregs) were observed in PBMCs of invasive carcinoma of breast (IBCa) patients compared with that in patients with fibroadenoma (FIBma) or healthy individuals, and the positive correlation existed between Bregs and CD4+ CD25+ CD127− Tregs (r = 0.316, P = 0.001). We found that PD-L1 expression was higher on Bregs in IBCa patients compared with patients with FIBma or healthy individuals (P < 0.05, respectively), and that a tight correlation exists between CD19+ CD24+ CD38+ PD-L1+ Bregs and CD19+ CD24+ CD38+ Bregs (r = 0.267, P = 0.007), poor TNM phases and up-regulated expression of PD-L1 on Bregs. The pattern of PD-1 expression on CD4+ T cells indicated that high level of PD-1hi expressed on CD4+ CD25+ CD127+ effector T cells (P < 0.001). More importantly, the presence of PD-L1 on Bregs was positively correlated with Tregs (r = 0.299, P = 0.003), but negatively correlated with PD-1hi effector T cells (r = −0.22, P = 0.031). Together, results of the present study indicated that PD-L1 is an important molecule on Bregs, mediated the generation of Tregs in IBCa.
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