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Elsayed A, Plüss L, Nideroest L, Rotta G, Thoma M, Zangger N, Peissert F, Pfister SK, Pellegrino C, Dakhel Plaza S, De Luca R, Manz MG, Oxenius A, Puca E, Halin C, Neri D. Optimizing the Design and Geometry of T Cell-Engaging Bispecific Antibodies Targeting CEA in Colorectal Cancer. Mol Cancer Ther 2024; 23:1010-1020. [PMID: 38638035 DOI: 10.1158/1535-7163.mct-23-0766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 03/05/2024] [Accepted: 04/05/2024] [Indexed: 04/20/2024]
Abstract
Metastatic colorectal cancer remains a leading cause of cancer-related deaths, with a 5-year survival rate of only 15%. T cell-engaging bispecific antibodies (TCBs) represent a class of biopharmaceuticals that redirect cytotoxic T cells toward tumor cells, thereby turning immunologically "cold" tumors into "hot" ones. The carcinoembryonic antigen (CEA) is an attractive tumor-associated antigen that is overexpressed in more than 98% of patients with colorectal cancer. In this study, we report the comparison of four different TCB formats employing the antibodies F4 (targeting human CEA) and 2C11 (targeting mouse CD3ε). These formats include both antibody fragment-based and IgG-based constructs, with either one or two binding specificities of the respective antibodies. The 2 + 1 arrangement, using an anti-CEA single-chain diabody fused to an anti-CD3 single-chain variable fragment, emerged as the most potent design, showing tumor killing at subnanomolar concentrations across three different CEA+ cell lines. The in vitro activity was three times greater in C57BL/6 mouse colon adenocarcinoma cells (MC38) expressing high levels of CEA compared with those expressing low levels, highlighting the impact of CEA density in this assay. The optimal TCB candidate was tested in two different immunocompetent mouse models of colorectal cancer and showed tumor growth retardation. Ex vivo analysis of tumor infiltrates showed an increase in CD4+ and CD8+ T cells upon TCB treatment. This study suggests that bivalent tumor targeting, monovalent T-cell targeting, and a short spatial separation are promising characteristics for CEA-targeting TCBs.
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Affiliation(s)
- Abdullah Elsayed
- Philochem AG, Otelfingen, Switzerland
- Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | - Louis Plüss
- Philochem AG, Otelfingen, Switzerland
- Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | - Larissa Nideroest
- Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | | | - Marina Thoma
- Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | - Nathan Zangger
- Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | | | | | - Christian Pellegrino
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich (CCCZ), Zurich, Switzerland
| | | | | | - Markus G Manz
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich (CCCZ), Zurich, Switzerland
| | - Annette Oxenius
- Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | | | - Cornelia Halin
- Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | - Dario Neri
- Philochem AG, Otelfingen, Switzerland
- Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
- Philogen SpA, Siena, Italy
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Abedizadeh R, Majidi F, Khorasani HR, Abedi H, Sabour D. Colorectal cancer: a comprehensive review of carcinogenesis, diagnosis, and novel strategies for classified treatments. Cancer Metastasis Rev 2024; 43:729-753. [PMID: 38112903 DOI: 10.1007/s10555-023-10158-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 11/27/2023] [Indexed: 12/21/2023]
Abstract
Colorectal cancer is the third most common and the second deadliest cancer worldwide. To date, colorectal cancer becomes one of the most important challenges of the health system in many countries. Since the clinical symptoms of this cancer appear in the final stages of the disease and there is a significant golden time between the formation of polyps and the onset of cancer, early diagnosis can play a significant role in reducing mortality. Today, in addition to colonoscopy, minimally invasive methods such as liquid biopsy have received much attention. The treatment of this complex disease has been mostly based on traditional treatments including surgery, radiotherapy, and chemotherapy; the high mortality rate indicates a lack of success for current treatment methods. Moreover, disease recurrence is another problem of traditional treatments. Recently, new approaches such as targeted therapy, immunotherapy, and nanomedicine have opened new doors for cancer treatment, some of which have already entered the market, and many methods have shown promising results in clinical trials. The success of immunotherapy in the treatment of refractory disease, the introduction of these methods into neoadjuvant therapy, and the successful results in tumor shrinkage without surgery have made immunotherapy a tough competitor for conventional treatments. It seems that the combination of those methods with such targeted therapies will go through promising changes in the future of colorectal cancer treatment.
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Affiliation(s)
- Roya Abedizadeh
- Department of Cancer Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Isar 11, Babol, 47138-18983, Iran
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Bani-Hashem Square, Tehran, 16635-148, Iran
| | - Fateme Majidi
- Department of Cancer Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Isar 11, Babol, 47138-18983, Iran
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Bani-Hashem Square, Tehran, 16635-148, Iran
| | - Hamid Reza Khorasani
- Department of Cancer Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Isar 11, Babol, 47138-18983, Iran
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Bani-Hashem Square, Tehran, 16635-148, Iran
| | - Hassan Abedi
- Department of Internal Medicine, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran.
| | - Davood Sabour
- Department of Cancer Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Isar 11, Babol, 47138-18983, Iran.
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Bani-Hashem Square, Tehran, 16635-148, Iran.
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Ahmed KR, Rahman MM, Islam MN, Fahim MMH, Rahman MA, Kim B. Antioxidants activities of phytochemicals perspective modulation of autophagy and apoptosis to treating cancer. Biomed Pharmacother 2024; 174:116497. [PMID: 38552443 DOI: 10.1016/j.biopha.2024.116497] [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: 01/01/2024] [Revised: 03/15/2024] [Accepted: 03/20/2024] [Indexed: 05/01/2024] Open
Abstract
The study of chemicals extracted from natural sources should be encouraged due to the significant number of cancer deaths each year and the financial burden imposed by this disease on society. The causes of almost all cancers involve a combination of lifestyle, environmental factors, and genetic and inherited factors. Modern medicine researchers are increasingly interested in traditional phytochemicals as they hold potential for new bioactive compounds with medical applications. Recent publications have provided evidence of the antitumor properties of phytochemicals, a key component of traditional Chinese medicine, thereby opening new avenues for their use in modern medicine. Various studies have demonstrated a strong correlation between apoptosis and autophagy, two critical mechanisms involved in cancer formation and regulation, indicating diverse forms of crosstalk between them. Phytochemicals have the ability to activate both pro-apoptotic and pro-autophagic pathways. Therefore, understanding how phytochemicals influence the relationship between apoptosis and autophagy is crucial for developing a new cancer treatment strategy that targets these molecular mechanisms. This review aims to explore natural phytochemicals that have demonstrated anticancer effects, focusing on their role in regulating the crosstalk between apoptosis and autophagy, which contributes to uncontrolled tumor cell growth. Additionally, the review highlights the limitations and challenges of current research methodologies while suggesting potential avenues for future research in this field.
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Affiliation(s)
- Kazi Rejvee Ahmed
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Hoegidong Dongdaemun-gu, Seoul 02447, South Korea; Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02447, South Korea
| | - Md Masudur Rahman
- Department of Biotechnology and Genetic Engineering, Faculty of Biological Sciences, Islamic University, Kushtia 7003, Bangladesh
| | - Md Nahidul Islam
- Department of Biotechnology and Genetic Engineering, Faculty of Biological Sciences, Islamic University, Kushtia 7003, Bangladesh
| | - Md Maharub Hossain Fahim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Hoegidong Dongdaemun-gu, Seoul 02447, South Korea
| | - Md Ataur Rahman
- Department of Neurology, University of Michigan, Ann Arbor, MI 48109, United States
| | - Bonglee Kim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Hoegidong Dongdaemun-gu, Seoul 02447, South Korea; Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02447, South Korea.
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Li C, Wirth U, Schardey J, Ehrlich-Treuenstätt VV, Bazhin AV, Werner J, Kühn F. An immune-related gene prognostic index for predicting prognosis in patients with colorectal cancer. Front Immunol 2023; 14:1156488. [PMID: 37483596 PMCID: PMC10358773 DOI: 10.3389/fimmu.2023.1156488] [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: 02/01/2023] [Accepted: 06/13/2023] [Indexed: 07/25/2023] Open
Abstract
Background Colorectal cancer (CRC) is one of the most common solid malignant burdens worldwide. Cancer immunology and immunotherapy have become fundamental areas in CRC research and treatment. Currently, the method of generating Immune-Related Gene Prognostic Indices (IRGPIs) has been found to predict patient prognosis as an immune-related prognostic biomarker in a variety of tumors. However, their role in patients with CRC remains mostly unknown. Therefore, we aimed to establish an IRGPI for prognosis evaluation in CRC. Methods RNA-sequencing data and clinical information of CRC patients were retrieved from The Cancer Genome Atlas (TCGA) and The Gene Expression Omnibus (GEO) databases as training and validation sets, respectively. Immune-related gene data was obtained from the ImmPort and InnateDB databases. The weighted gene co-expression network analysis (WGCNA) was used to identify hub immune-related genes. An IRGPI was then constructed using Cox regression methods. Based on the median risk score of IRGPI, patients could be divided into high-risk and low-risk groups. To further investigate the immunologic differences, Gene set variation analysis (GSVA) studies were conducted. In addition, immune cell infiltration and related functional analysis were used to identify the differential immune cell subsets and related functional pathways. Results We identified 49 immune-related genes associated with the prognosis of CRC, 17 of which were selected for an IRGPI. The IRGPI model significantly differentiates the survival rates of CRC patients in the different groups. The IRGPI as an independent prognostic factor significantly correlates with clinico-pathological factors such as age and tumor stage. Furthermore, we developed a nomogram to improve the clinical utility of the IRGPI score. Immuno-correlation analysis in different IRGPI groups revealed distinct immune cell infiltration (CD4+ T cells resting memory) and associated pathways (macrophages, Type I IFNs responses, iDCs.), providing new insights into the tumor microenvironment. At last, drug sensitivity analysis revealed that the high-risk IRGPI group was sensitive to 11 and resistant to 15 drugs. Conclusion Our study established a promising immune-related risk model for predicting survival in CRC patients. This could help to better understand the correlation between immunity and the prognosis of CRC providing a new perspective for personalized treatment of CRC.
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Affiliation(s)
- Chao Li
- Department of General, Visceral, and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Ulrich Wirth
- Department of General, Visceral, and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Josefine Schardey
- Department of General, Visceral, and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
| | | | - Alexandr V. Bazhin
- Department of General, Visceral, and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
- German Cancer Consortium (DKTK), Munich, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - Jens Werner
- Department of General, Visceral, and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
- German Cancer Consortium (DKTK), Munich, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - Florian Kühn
- Department of General, Visceral, and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
- German Cancer Consortium (DKTK), Munich, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
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Amonkar MM, Abderhalden LA, Frederickson AM, Aksomaityte A, Lang BM, Leconte P, Zhang I. Clinical outcomes of chemotherapy-based therapies for previously treated advanced colorectal cancer: a systematic literature review and meta-analysis. Int J Colorectal Dis 2023; 38:10. [PMID: 36630020 DOI: 10.1007/s00384-022-04301-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/28/2022] [Indexed: 01/12/2023]
Abstract
PURPOSE The purpose of this study was to evaluate clinical outcomes of standard therapies in previously treated, advanced colorectal cancer (CRC) patients. METHODS A systematic literature review was conducted in Embase, MEDLINE, and CENTRAL databases (January 2000-July 2021), annual oncology conferences (2019-2021), and clinicaltrials.gov to identify studies evaluating the use of licensed interventions in second-line or later settings. The primary outcome of interest was objective response rate (ORR) and secondary outcomes included progression-free survival (PFS) and overall survival (OS). ORR was pooled using the Freeman-Tukey double arcsine transformation. For survival outcomes, published Kaplan-Meier curves for OS and PFS were digitized to re-construct individual patient-level data and pooled following the methodology described by Combescure et al. (2014). RESULTS Twenty-three trials evaluating standard chemotherapies with or without targeted therapies across 4,791 advanced CRC patients contributed to our meta-analysis. In the second-line setting, the random effects pooled estimate of ORR was 22.4% (95% confidence interval (CI): 18.0, 27.1), median PFS was 7.0 months (95% CI: 6.4, 7.4), and median OS was 14.9 months (95% CI: 13.6, 16.1). In the third-line or later setting, the random effects pooled estimate of ORR was 1.7% (95% CI: 0.8, 2.7), median PFS was 2.3 months (95% CI: 2.0, 2.8), and median OS was 8.2 months (95% CI: 7.1, 9.1). CONCLUSION Standard treatments have limited efficacy in the second-line or later setting with worsening outcomes in later lines. Given the global burden of CRC, further research into novel and emerging therapeutic options following treatment failure is needed.
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Plüss L, Peissert F, Elsayed A, Rotta G, Römer J, Dakhel Plaza S, Villa A, Puca E, De Luca R, Oxenius A, Neri D. Generation and in vivo characterization of a novel high-affinity human antibody targeting carcinoembryonic antigen. MAbs 2023; 15:2217964. [PMID: 37243574 DOI: 10.1080/19420862.2023.2217964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/09/2023] [Accepted: 05/22/2023] [Indexed: 05/29/2023] Open
Abstract
There are no effective treatment options for most patients with metastatic colorectal cancer (mCRC). mCRC remains a leading cause of tumor-related death, with a five-year survival rate of only 15%, highlighting the urgent need for novel pharmacological products. Current standard drugs are based on cytotoxic chemotherapy, VEGF inhibitors, EGFR antibodies, and multikinase inhibitors. The antibody-based delivery of pro-inflammatory cytokines provides a promising and differentiated strategy to improve the treatment outcome for mCRC patients. Here, we describe the generation of a novel fully human monoclonal antibody (termed F4) targeting the carcinoembryonic antigen (CEA), a tumor-associated antigen overexpressed in colorectal cancer and other malignancies. The F4 antibody was selected by antibody phage display technology after two rounds of affinity maturation. F4 in single-chain variable fragment format bound to CEA in surface plasmon resonance with an affinity of 7.7 nM. Flow cytometry and immunofluorescence on human cancer specimens confirmed binding to CEA-expressing cells. F4 selectively accumulated in CEA-positive tumors, as evidenced by two orthogonal in vivo biodistribution studies. Encouraged by these results, we genetically fused murine interleukin (IL) 12 to F4 in the single-chain diabody format. F4-IL12 exhibited potent antitumor activity in two murine models of colon cancer. Treatment with F4-IL12 led to an increased density of tumor-infiltrating lymphocytes and an upregulation of interferon γ expression by tumor-homing lymphocytes. These data suggest that the F4 antibody is an attractive delivery vehicle for targeted cancer therapy.
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Affiliation(s)
- Louis Plüss
- Philochem AG, Libernstrasse 3, Otelfingen, Switzerland
- Department of Biology, Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | | | - Abdullah Elsayed
- Philochem AG, Libernstrasse 3, Otelfingen, Switzerland
- Department of Biology, Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | - Giulia Rotta
- Philochem AG, Libernstrasse 3, Otelfingen, Switzerland
| | - Jonas Römer
- Department of Biology, Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | | | | | - Emanuele Puca
- Philochem AG, Libernstrasse 3, Otelfingen, Switzerland
| | | | - Annette Oxenius
- Department of Biology, Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | - Dario Neri
- Philochem AG, Libernstrasse 3, Otelfingen, Switzerland
- Department of Biology, Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
- Philogen SpA, Località Bellaria, Sovicille, Italy
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Peissert F, Plüss L, Giudice AM, Ongaro T, Villa A, Elsayed A, Nadal L, Dakhel Plaza S, Scietti L, Puca E, De Luca R, Forneris F, Neri D. Selection of a PD-1 blocking antibody from a novel fully human phage display library. Protein Sci 2022; 31:e4486. [PMID: 36317676 PMCID: PMC9667898 DOI: 10.1002/pro.4486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/18/2022] [Accepted: 10/27/2022] [Indexed: 11/05/2022]
Abstract
Programmed cell death protein 1 (PD-1) is an immunoregulatory target which is recognized by different monoclonal antibodies, approved for the therapy of multiple types of cancer. Different anti-PD-1 antibodies display different therapeutic properties and there is a pharmaceutical interest to generate and characterize novel anti-PD-1 antibodies. We screened multiple human antibody phage display libraries to target novel epitopes on the PD-1 surface and we discovered a unique and previously undescribed binding specificity (termed D12) from a new antibody library (termed AMG). The library featured antibody fragments in single-chain fragment variable (scFv) format, based on the IGHV3-23*03 (VH ) and IGKV1-39*01 (Vκ) genes. The D12 antibody was characterized by surface plasmon resonance (SPR), cross-reacted with the Cynomolgus monkey antigen and bound to primary human T cells, as shown by flow cytometry. The antibody blocked the PD-1/PD-L1 interaction in vitro with an EC50 value which was comparable to the one of nivolumab, a clinically approved antibody. The fine details of the interaction between D12 and PD-1 were elucidated by x-ray crystallography of the complex at a 3.5 Å resolution, revealing an unprecedented conformational change at the N-terminus of PD-1 following D12 binding, as well as partial overlap with the binding site for the cognate PD-L1 and PD-L2 ligands which prevents their binding. The results of the study suggest that the expansion of antibody library repertoires may facilitate the discovery of novel binding specificities with unique properties that hold promises for the modulation of PD-1 activity in vitro and in vivo.
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Affiliation(s)
- Frederik Peissert
- Philochem AGOtelfingenSwitzerland
- Biomolecular Sciences and BiotechnologyUniversity School for Advanced Studies IUSS PaviaPaviaItaly
| | - Louis Plüss
- Philochem AGOtelfingenSwitzerland
- Department of Chemistry and Applied BiosciencesSwiss Federal Institute of Technology (ETH Zürich)ZürichSwitzerland
| | | | - Tiziano Ongaro
- The Armenise‐Harvard Laboratory of Structural Biology, Department of Biology and BiotechnologyUniversity of PaviaPaviaItaly
| | | | - Abdullah Elsayed
- Philochem AGOtelfingenSwitzerland
- Department of Chemistry and Applied BiosciencesSwiss Federal Institute of Technology (ETH Zürich)ZürichSwitzerland
| | | | | | - Luigi Scietti
- The Armenise‐Harvard Laboratory of Structural Biology, Department of Biology and BiotechnologyUniversity of PaviaPaviaItaly
| | | | | | - Federico Forneris
- The Armenise‐Harvard Laboratory of Structural Biology, Department of Biology and BiotechnologyUniversity of PaviaPaviaItaly
| | - Dario Neri
- Philochem AGOtelfingenSwitzerland
- Department of Chemistry and Applied BiosciencesSwiss Federal Institute of Technology (ETH Zürich)ZürichSwitzerland
- Philogen SpASovicille (SI)Italy
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Therapeutic Antibodies in Cancer Treatment in the UK. Int J Mol Sci 2022; 23:ijms232314589. [PMID: 36498915 PMCID: PMC9739895 DOI: 10.3390/ijms232314589] [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: 10/31/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
The growing understanding of the molecular mechanisms of carcinogenesis accelerated the development of monoclonal therapeutic antibodies to specifically target multiple cancer pathways. Recombinant protein therapeutics now constitute a large proportion of yearly approved medicines. Oncology, autoimmune diseases and to a smaller degree the prophylaxis of organ transplant rejection are their main application areas. As of the date of this review, 37 monoclonal antibody products are approved for use in cancer treatments in the United Kingdom. Currently, the antibody therapeutics market is dominated by monoclonal immunoglobulins (IgGs). New types of recombinant antibody therapeutics developed more recently include bispecific recombinant antibodies and other recombinantly produced functional proteins. This review focuses on the approved therapeutic antibodies used in cancer treatment in the UK today and describes their antigen targets and molecular mechanisms involved. We provide convenient links to the relevant databases and other relevant resources for all antigens and antibodies mentioned. This review provides a comprehensive summary of the different monoclonal antibodies that are currently in clinical use primarily in malignancy, including their function, which is of importance to those in the medical field and allied specialties.
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Chen J, Zhu H, Yin Y, Jia S, Luo X. Colorectal cancer: Metabolic interactions reshape the tumor microenvironment. Biochim Biophys Acta Rev Cancer 2022; 1877:188797. [DOI: 10.1016/j.bbcan.2022.188797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/24/2022] [Accepted: 09/05/2022] [Indexed: 02/07/2023]
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Cancer Immunotherapy and Delivery System: An Update. Pharmaceutics 2022; 14:pharmaceutics14081630. [PMID: 36015256 PMCID: PMC9413869 DOI: 10.3390/pharmaceutics14081630] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/26/2022] [Accepted: 08/02/2022] [Indexed: 02/06/2023] Open
Abstract
With an understanding of immunity in the tumor microenvironment, immunotherapy turns out to be a powerful tool in the clinic to treat many cancers. The strategies applied in cancer immunotherapy mainly include blockade of immune checkpoints, adoptive transfer of engineered cells, such as T cells, natural killer cells, and macrophages, cytokine therapy, cancer vaccines, and oncolytic virotherapy. Many factors, such as product price, off-target side effects, immunosuppressive tumor microenvironment, and cancer cell heterogeneity, affect the treatment efficacy of immunotherapies against cancers. In addition, some treatments, such as chimeric antigen receptor (CAR) T cell therapy, are more effective in treating patients with lymphoma, leukemia, and multiple myeloma rather than solid tumors. To improve the efficacy of targeted immunotherapy and reduce off-target effects, delivery systems for immunotherapies have been developed in past decades using tools such as nanoparticles, hydrogel matrix, and implantable scaffolds. This review first summarizes the currently common immunotherapies and their limitations. It then synopsizes the relative delivery systems that can be applied to improve treatment efficacy and minimize side effects. The challenges, frontiers, and prospects for applying these delivery systems in cancer immunotherapy are also discussed. Finally, the application of these approaches in clinical trials is reviewed.
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Huang L, Zhao H, Shan M, Chen H, Xu B, He Y, Zhao Y, Liu Z, Chen J, Xu Q. Oncolytic adenovirus H101 ameliorate the efficacy of anti-PD-1 monotherapy in colorectal cancer. Cancer Med 2022; 11:4575-4587. [PMID: 35762456 PMCID: PMC9741988 DOI: 10.1002/cam4.4845] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 04/14/2022] [Accepted: 05/04/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Immune checkpoint blockade therapy with anti-programmed cell death (PD)-1 antibodies provides therapeutic effect for many patients of various cancers but remains inadequate in colorectal cancer (CRC) patients. The present study aims to assess the efficacy of oncolytic adenovirus (OncoAd ) in enhancing the anti-PD-1 treatment of CRC. METHODS The estimating relative subsets of RNA transcripts algorithm was used for estimating the infiltrated immune cells in melanoma and CRC tissues. The efficacy of OncoAd with anti-PD-1 monotherapy was performed in a CT26 CRC mouse model in vivo. Flow cytometric analysis of peripheral blood and tumor tissues determined the difference anti-tumor immune efficacy of OncoAd with anti-PD-1 monotherapy. RESULTS The Cancer Genome Atlas database indicated that CD8+ T cells and regulatory T cells were significantly elevated in melanoma compared to CRC cohorts. Moreover, intratumor injection of oncolytic adenovirus enhanced T cell infiltration and decreased Treg percentages in the CT26 CRC colorectal cancer mouse model. Combinatorial OncoAd with anti-PD-1 antibody treatment markedly enhanced the anti-tumor efficacy of anti-PD-1 by significantly decreasing the tumor volume and reducing tumor growth in a CRC mouse model. To the end, OncoAd treatment increased the CD8/Treg ratio, indicating that OncoAd intratumor injection ameliorate the anti-tumor immune response of anti-PD-1 therapy. CONCLUSION The present study elucidates that OncoAd promotes intratumor T cell infiltration and improves anti-PD-1 immunotherapy, thereby providing a potent combinatorial therapeutic strategy for CRC.
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Affiliation(s)
- Lili Huang
- Department of Oncology, Shanghai Tenth People's HospitalTongji University School of MedicineShanghaiChina,Tongji University Cancer CenterShanghaiChina
| | - Huaxin Zhao
- Department of Oncology, Shanghai Tenth People's HospitalTongji University School of MedicineShanghaiChina,Tongji University Cancer CenterShanghaiChina
| | | | - Hong Chen
- Department of Gastrointestinal SurgeryFujian Provincial HospitalFuzhouChina
| | - Bin Xu
- Department of General Surgery, Shanghai Tenth People's HospitalTongji University School of MedicineShangaiChina
| | - Yang He
- Department of Oncology, Shanghai Tenth People's HospitalTongji University School of MedicineShanghaiChina
| | - Yu Zhao
- Department of Oncology, Shanghai Tenth People's HospitalTongji University School of MedicineShanghaiChina,Tongji University Cancer CenterShanghaiChina
| | - Zhuqing Liu
- Department of Oncology, Shanghai Tenth People's HospitalTongji University School of MedicineShanghaiChina,Tongji University Cancer CenterShanghaiChina
| | - Jianhua Chen
- Department of Oncology, Shanghai Tenth People's HospitalTongji University School of MedicineShanghaiChina,Tongji University Cancer CenterShanghaiChina
| | - Qing Xu
- Department of Oncology, Shanghai Tenth People's HospitalTongji University School of MedicineShanghaiChina,Tongji University Cancer CenterShanghaiChina,Anhui Medical UniversityHeFeiChina
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12
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Cherri S, Oneda E, Noventa S, Melocchi L, Zaniboni A. Microsatellite instability and chemosensitivity in solid tumours. Ther Adv Med Oncol 2022; 14:17588359221099347. [PMID: 35620236 PMCID: PMC9127927 DOI: 10.1177/17588359221099347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 04/21/2022] [Indexed: 01/01/2023] Open
Abstract
The use of biomarkers that influence a targeted choice in cancer treatments is the future of medical oncology. Within this scenario, in recent years, an important role has been played by knowledge of microsatellite instability (MSI), a molecular fingerprint that identifies defects in the mismatch repair system. This knowledge has changed clinical practice in the adjuvant setting of colon cancer, and its role in the neoadjuvant setting in gastric tumours is becoming increasingly interesting, as well as in endometrial cancers in both early and advanced diseases. Furthermore, it has undoubtedly conditioned the first lines of treatment in the metastatic setting in different types of cancers. The incidence of MSI is different in different cancer types, as well as in early cancers versus metastatic disease. Knowing the incidence of MSI in the various histologies can provide insight into the potential use of this biomarker considering its prognostic value, especially in the early stages, and its predictive role with respect to treatment response. In particular, MSI can guide the choice of chemotherapy treatments in the adjuvant setting of colon and perioperative setting in gastric tumours, which could lead to immunotherapy treatments in these patients in both the early stages of the disease and the metastatic setting where the response to immunotherapy drugs in diseases with MSI is now well established. In this review, we focus on colon, gastric and endometrial cancers, and we briefly discuss other cancer types where MSI could have a potential role in oncological treatment decisions.
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Affiliation(s)
- Sara Cherri
- Department of Clinical Oncology, Fondazione Poliambulanza, Via bissolati 57, 25124, Brescia, Italy
| | - Ester Oneda
- Department of Clinical Oncology, Fondazione Poliambulanza, Brescia, Italy
| | - Silvia Noventa
- Department of Clinical Oncology, Fondazione Poliambulanza, Brescia, Italy
| | - Laura Melocchi
- Department of Anatomical Pathology, Fondazione Poliambulanza, Brescia, Italy
| | - Alberto Zaniboni
- Department of Clinical Oncology, Fondazione Poliambulanza, Brescia, Italy
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13
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Tarantino P, Barroso-Sousa R, Garrido-Castro AC, McAllister SS, Guerriero JL, Mittendorf E, Curigliano G, Tolaney SM. Understanding resistance to immune checkpoint inhibitors in advanced breast cancer. Expert Rev Anticancer Ther 2021; 22:141-153. [PMID: 34919490 DOI: 10.1080/14737140.2022.2020650] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION The addition of immune checkpoint inhibitors (ICIs) to frontline chemotherapy has improved survival for patients with advanced triple-negative breast cancer (TNBC) expressing programmed death-ligand 1 (PD-L1). Nonetheless, most patients develop resistance, with outcomes remaining poor for this population. Moreover, unsatisfactory activity has been observed with ICIs in PD-L1-negative TNBC and in other breast cancer (BC) subtypes, warranting a deeper understanding of resistance to ICIs in BC. AREAS COVERED We discuss the immune landscape of distinct BC subtypes, review the clinical activity of immunotherapy in BC, and highlight strategies under development to overcome resistance to ICIs. EXPERT OPINION Activity and resistance to ICIs in BC are strongly related to the intrinsic immunophenotype of the tumor tissue. Several promising biomarkers reflecting the immunological state of BC are emerging, with only PD-L1 expression currently adopted into clinical practice. However, limitations make of PD-L1 a sub-optimal biomarker for patient selection, which require efforts to integrate this marker with other immunological features. Concomitantly, a wide variety of drug combinations designed to overcome immune-resistance are being evaluated, with some encouraging signals observed in early-phase trials. Combination strategies tailored to patient and tumor immunophenotype may allow to overcome resistance and fully exploit the potential of ICIs.
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Affiliation(s)
- Paolo Tarantino
- Division of New Drugs and Early Drug Development, European Institute of Oncology IRCCS, Milan, Italy.,Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy.,Breast Oncology Program Dana-Farber Cancer Institute, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | | | - Ana C Garrido-Castro
- Breast Oncology Program Dana-Farber Cancer Institute, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | - Sandra S McAllister
- Harvard Medical School, Boston, MA, USA.,Hematology Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Jennifer L Guerriero
- Breast Oncology Program Dana-Farber Cancer Institute, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA.,Division of Breast Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Elizabeth Mittendorf
- Breast Oncology Program Dana-Farber Cancer Institute, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA.,Division of Breast Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Giuseppe Curigliano
- Division of New Drugs and Early Drug Development, European Institute of Oncology IRCCS, Milan, Italy.,Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Sara M Tolaney
- Breast Oncology Program Dana-Farber Cancer Institute, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
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14
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Berbecka M, Forma A, Baj J, Furtak-Niczyporuk M, Maciejewski R, Sitarz R. A Systematic Review of the Cyclooxygenase-2 (COX-2) Expression in Rectal Cancer Patients Treated with Preoperative Radiotherapy or Radiochemotherapy. J Clin Med 2021; 10:4443. [PMID: 34640461 PMCID: PMC8509380 DOI: 10.3390/jcm10194443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/14/2021] [Accepted: 09/24/2021] [Indexed: 02/05/2023] Open
Abstract
The main objective of this systematic review is to investigate the expression level of the cyclooxygenase-2 (COX-2) in rectal cancer treated with either preoperative radiotherapy or radiochemotherapy. In addition, we have summarized the effects of preoperative treatment of rectal cancer with regards to the expression levels of COX-2. A systematic literature review was performed in The Cochrane Library, PubMed, Web of Science, and Scopus databases on 1 January 2021 with the usage of the following search string-(cyclooxygenase-2) OR (COX-2) AND (rectal cancer) AND (preoperative radiochemotherapy) OR (preoperative radiotherapy). Among the 176 included in the analysis, only 13 studies were included for data extraction with a total number of 2095 patients. The results of the analysis are based on the articles concerning the expression of COX-2 in rectal cancer among patients treated with preoperative radiotherapy or radiochemotherapy. A COX-2 expression is an early event involved in rectal cancer development. In cases of negative COX-2 expression, radiotherapy and radiochemotherapy might contribute to the reduction of a local recurrence. Therefore, COX-2 may be considered as a biologic factor while selecting patients for more effective, less time-consuming and less expensive preoperative treatment. However, the utility of the administration of COX-2 inhibitors to patients with COX-2 overexpression, in an attempt to improve the patients' response rate to the neoadjuvant treatment, needs an assessment in further clinical trials.
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Affiliation(s)
- Monika Berbecka
- Department of Normal Anatomy, Medical University of Lublin, 20-090 Lublin, Poland; (M.B.); (J.B.); (R.M.)
| | - Alicja Forma
- Department of Forensic Medicine, Medical University of Lublin, 20-090 Lublin, Poland;
| | - Jacek Baj
- Department of Normal Anatomy, Medical University of Lublin, 20-090 Lublin, Poland; (M.B.); (J.B.); (R.M.)
| | | | - Ryszard Maciejewski
- Department of Normal Anatomy, Medical University of Lublin, 20-090 Lublin, Poland; (M.B.); (J.B.); (R.M.)
| | - Robert Sitarz
- Department of Normal Anatomy, Medical University of Lublin, 20-090 Lublin, Poland; (M.B.); (J.B.); (R.M.)
- Department of Surgical Oncology, St. John’s Cancer Center, 20-090 Lublin, Poland
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15
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Ma H, Wang H, Sové RJ, Wang J, Giragossian C, Popel AS. Combination therapy with T cell engager and PD-L1 blockade enhances the antitumor potency of T cells as predicted by a QSP model. J Immunother Cancer 2021; 8:jitc-2020-001141. [PMID: 32859743 PMCID: PMC7454244 DOI: 10.1136/jitc-2020-001141] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2020] [Indexed: 12/12/2022] Open
Abstract
Background T cells have been recognized as core effectors for cancer immunotherapy. How to restore the anti-tumor ability of suppressed T cells or improve the lethality of cytotoxic T cells has become the main focus in immunotherapy. Bispecific antibodies, especially bispecific T cell engagers (TCEs), have shown their unique ability to enhance the patient’s immune response to tumors by stimulating T cell activation and cytokine production in an MHC-independent manner. Antibodies targeting the checkpoint inhibitory molecules such as programmed cell death protein 1 (PD-1), PD-ligand 1 (PD-L1) and cytotoxic lymphocyte activated antigen 4 are able to restore the cytotoxic effect of immune suppressed T cells and have also shown durable responses in patients with malignancies. However, both types have their own limitations in treating certain cancers. Preclinical and clinical results have emphasized the potential of combining these two antibodies to improve tumor response and patients’ survival. However, the selection and evaluation of combination partners clinically is a costly endeavor. In addition, despite advances made in immunotherapy, there are subsets of patients who are non-responders, and reliable biomarkers for different immunotherapies are urgently needed to improve the ability to prospectively predict patients’ response and improve clinical study design. Therefore, mathematical and computational models are essential to optimize patient benefit, and guide combination approaches with lower cost and in a faster manner. Method In this study, we continued to extend the quantitative systems pharmacology (QSP) model we developed for a bispecific TCE to explore efficacy of combination therapy with an anti-PD-L1 monoclonal antibody in patients with colorectal cancer. Results Patient-specific response to TCE monotherapy, anti-PD-L1 monotherapy and the combination therapy were predicted using this model according to each patient’s individual characteristics. Conclusions Individual biomarkers for TCE monotherapy, anti-PD-L1 monotherapy and their combination have been determined based on the QSP model. Best treatment options for specific patients could be suggested based on their own characteristics to improve clinical trial efficiency. The model can be further used to assess plausible combination strategies for different TCEs and immune checkpoint inhibitors in different types of cancer.
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Affiliation(s)
- Huilin Ma
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Hanwen Wang
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Richard J Sové
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Jun Wang
- Biotherapeutics Discovery Research, Boehringer Ingelheim Pharmaceuticals Inc, Ridgefield, Connecticut, USA
| | - Craig Giragossian
- Biotherapeutics Discovery Research, Boehringer Ingelheim Pharmaceuticals Inc, Ridgefield, Connecticut, USA
| | - Aleksander S Popel
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Oncology and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Medicine, Baltimore, Maryland, USA
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16
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Jin Z, Shen J, Wang C, Chen D, Zhang B, Zhang J, Ajani JA, Bennouna J, Chao J, Yoon HH, Zhu H, Ruan Y, Zhu C, Xu A. Narrative review of pembrolizumab for the treatment of esophageal cancer: evidence and outlook. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1189. [PMID: 34430630 PMCID: PMC8350624 DOI: 10.21037/atm-21-2804] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 06/28/2021] [Indexed: 12/24/2022]
Abstract
Objective Based on the current evidence, review the efficacy and safety profile of pembrolizumab, along with its shortcomings, in an effort to define future research directions. Background The survival outcome of esophageal cancer (EC) is poor, especially in patients with advanced stage. Palliative surgery, chemotherapy, radiotherapy and chemoradiotherapy have limited efficacy in prolonging the survival time. Currently, immunotherapies, including adoptive cell therapy-based, antibody-based, and vaccine-based therapies, are attracting considerable attention. The mechanism of immunotherapy lies in the modification of immune response and prevention of immune escape. Immunomodulatory agents can block the programmed cell death protein 1/programmed death-ligand 1 (PD-1/PD-L1) pathway, thereby allowing lymphocytes to attack tumor cells. This class of drugs has the potential to treat a variety of tumors and may substantially improve overall survival (OS) in some patients. Multiple clinical trials have shown that pembrolizumab has good efficacy and safety, enhances the EC treatment paradigm, and has even become the first-line treatment of choice for patients with PD-L1-positive recurrent or metastatic EC. Methods We reviewed the results of clinical trials of pembrolizumab for EC and gastroesophageal cancer presented at Embase, PubMed, the American Society of Clinical Oncology (ASCO) annual meetings, and the Cochrane Central Register of Controlled Trials. Conclusions Pembrolizumab has good efficacy and tolerability profiles, and has emerged as a second-line option for the treatment of PD-L1-positive locally advanced or metastatic ESCC. Pembrolizumab has many promising applications, and further investigations into its mechanisms should be conducted.
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Affiliation(s)
- Zixian Jin
- Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province, Linhai, China.,Department of Thoracic Surgery, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Jianfei Shen
- Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province, Linhai, China.,Department of Thoracic Surgery, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Chunguo Wang
- Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province, Linhai, China.,Department of Thoracic Surgery, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Dong Chen
- Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province, Linhai, China.,Department of Thoracic Surgery, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Bo Zhang
- Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province, Linhai, China.,Department of Thoracic Surgery, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Jian Zhang
- Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province, Linhai, China.,Department of Thoracic Surgery, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Jaffer A Ajani
- Department of GI Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jaafar Bennouna
- Department of Medical Oncology, University Hospital of Nantes, France.,Inserm, CRCINA, Université de Nantes, Nantes, France
| | - Joseph Chao
- Department of Medical Oncology and Therapeutics Research, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Harry H Yoon
- Division of Medical Oncology, Mayo Clinic, Rochester, MN, USA
| | - Hongyu Zhu
- Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province, Linhai, China.,Department of Thoracic Surgery, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Yuhang Ruan
- Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province, Linhai, China.,Department of Thoracic Surgery, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Chengchu Zhu
- Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province, Linhai, China.,Department of Thoracic Surgery, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
| | - Anyi Xu
- Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province, Linhai, China.,Department of Emergency, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, China
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17
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Bhaskaran NA, Kumar L. Treating colon cancers with a non-conventional yet strategic approach: An overview of various nanoparticulate systems. J Control Release 2021; 336:16-39. [PMID: 34118336 DOI: 10.1016/j.jconrel.2021.06.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/06/2021] [Accepted: 06/07/2021] [Indexed: 12/18/2022]
Abstract
Regardless of progress in therapy management which are developed for colon cancer (CC), it remains the third most common cause of mortality due to cancers around the world. Conventional medicines pose side effects due to untoward action on non-target cells. Their inability to deliver drugs to the affected regions of the colon locally, in a reproducible manner raises a concern towards the efficacy of therapy. In this regard, nanoparticles emerged as a promising drug delivery system due to their flexibility in designing, drug release modulation and cancer cell targeting. Not only are nanoparticles making their way into colon cancer research in the revolution of conventional onco-therapeutics, but they also offer promising scope in the development of colon cancer vaccines and theranostic tools. However, there are challenges with respect to drug delivery using nanoparticles, which may hamper the delivery of these novel carriers to the colon. The present review addresses recent advents in nanotechnology for colon-specific drug delivery (CDDS) which may help to overcome the existing challenges and intends to recognize futuristic potentials in the treatment of CC with CDDS.
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Affiliation(s)
- N A Bhaskaran
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Udupi, Karnataka, India
| | - L Kumar
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Udupi, Karnataka, India.
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18
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Bai J, Chen H, Bai X. Relationship between microsatellite status and immune microenvironment of colorectal cancer and its application to diagnosis and treatment. J Clin Lab Anal 2021; 35:e23810. [PMID: 33938589 PMCID: PMC8183910 DOI: 10.1002/jcla.23810] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/09/2021] [Accepted: 04/11/2021] [Indexed: 12/13/2022] Open
Abstract
Due to advances in understanding the immune microenvironment of colorectal cancer (CRC), microsatellite classification (dMMR/MSI-H and pMMR/MSS) has become a key biomarker for the diagnosis and treatment of CRC patients and therefore has important clinical value. Microsatellite status is associated with a variety of clinicopathological features and affects drug resistance and the prognosis of patients. CRC patients with different microsatellite statuses have different compositions and distributions of immune cells and cytokines within their tumor microenvironments (TMEs). Therefore, there is great interest in reversing or reshaping CRC TMEs to transform immune tolerant "cold" tumors into immune sensitive "hot" tumors. This requires a thorough understanding of differences in the immune microenvironments of MSI-H and MSS type tumors. This review focuses on the relationship between CRC microsatellite status and the immune microenvironment. It focuses on how this relationship has value for clinical application in diagnosis and treatment, as well as exploring the limitations of its current application.
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Affiliation(s)
- Junge Bai
- The Fourth Hospital of Harbin Medical UniversityHarbinChina
| | - Hongsheng Chen
- Department of General SurgeryThe Fourth Hospital of Harbin Medical UniversityHarbinChina
| | - Xuefeng Bai
- Department of Colorectal SurgeryHarbin Medical University Cancer HospitalHarbinChina
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19
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Yang J, Bi F, Gou H. Complete Pathologic Response After Concurrent Treatment with Pembrolizumab and Radiotherapy in Metastatic Colorectal Cancer: A Case Report. Onco Targets Ther 2021; 14:2555-2561. [PMID: 33880034 PMCID: PMC8053529 DOI: 10.2147/ott.s298333] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 03/17/2021] [Indexed: 02/05/2023] Open
Abstract
Due to specific genetic characteristics, therapeutic options for colorectal cancer (CRC) with DNA mismatch repair deficient (dMMR)/microsatellite instability-high (MSI-H) are limited. Although programmed death 1 (PD-1) blockade has been shown to be highly effective therapy for dMMR/MSI-H CRC, there is a need to develop new therapeutic paradigms to further improve survival rates of patients with dMMR/MSI-H CRC. So far, there is no case report on the use of immunotherapy combined with radiotherapy (RT) for the treatment of dMMR/MSI-H metastatic CRC (mCRC). Here, we report a 64-year-old patient diagnosed with mCRC who experienced a complete pathological response (pCR) after successfully conversion treatment with pembrolizumab and RT, and remains to be tumor-free during a follow-up of 11 months while off therapy. Immunohistochemical staining for MLH1, MSH2, MSH6, and PMS2 on the intestinal biopsy samples revealed loss of MLH1 and PMS2 protein expression. The present case report adds to the limited data on the safety and effectiveness of local RT combined with immunotherapy for patients with dMMR/MSI-H mCRC. This combination therapy appears to be a potential treatment for dMMR/MSI-H mCRC and deserves further exploration.
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Affiliation(s)
- Jian Yang
- West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041, People's Republic of China
| | - Feng Bi
- Department of Medical Oncology, Laboratory of Molecular Targeted Therapy in Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041, People's Republic of China
| | - Hongfeng Gou
- West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041, People's Republic of China
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20
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Yu X, Zhu L, Liu J, Xie M, Chen J, Li J. Emerging Role of Immunotherapy for Colorectal Cancer with Liver Metastasis. Onco Targets Ther 2020; 13:11645-11658. [PMID: 33223838 PMCID: PMC7671511 DOI: 10.2147/ott.s271955] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 10/29/2020] [Indexed: 02/05/2023] Open
Abstract
Colorectal cancer (CRC) is the third most common malignant tumor in the world and the second leading cause of cancer-related deaths, with the liver as the most common site of distant metastasis. The prognosis of CRC with liver metastasis is poor, and most patients cannot undergo surgery. In addition, conventional antitumor approaches such as chemotherapy, radiotherapy, targeted therapy, and surgery result in unsatisfactory outcomes. In recent years, immunotherapy has shown good prospects in the treatment of assorted tumors by enhancing the host's antitumor immune function, and it may become a new effective treatment for liver metastasis of CRC. However, challenges remain in applying immunotherapy to CRC with liver metastasis. This review examines how the microenvironment and immunosuppressive landscape of the liver favor tumor progression. It also highlights the latest research advances in immunotherapy for colorectal liver metastasis and identifies immunotherapy as a treatment regimen with a promising future in clinical applications.
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Affiliation(s)
- Xianzhe Yu
- Gastrointestinal Department, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, People’s Republic of China
| | - Lingling Zhu
- Lung Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Jiewei Liu
- Lung Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan Province, People’s Republic of China
| | - Ming Xie
- Gastrointestinal Department, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, People’s Republic of China
| | - Jiang Chen
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang Province, People’s Republic of China
| | - Jianguo Li
- Gastrointestinal Department, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, People’s Republic of China
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