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Orleni M, Parise RA, Holleran JL, Amengual JE, Feng Y, Synold T, Beumer JH. Quantitation of tazemetostat in human plasma using liquid chromatography-tandem mass spectrometry. Biomed Chromatogr 2024; 38:e5903. [PMID: 38783541 DOI: 10.1002/bmc.5903] [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: 02/26/2024] [Revised: 05/06/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024]
Abstract
To support a phase 1 trial in patients with lymphomas, we developed a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for tazemetostat quantitation in 20 μL of human plasma. After protein precipitation, chromatographic separation employed a Kinetex C18 column and a gradient of 0.1% formic acid in both water and acetonitrile, during a 3-min run time. Detection was achieved using a SCIEX 6500+ tandem mass spectrometer with electrospray positive-mode ionization. Validation was based on the latest Food and Drug Administration guidance. With a stable isotopic internal standard, the assay was linear within the range of 10-5000 ng/mL and proved to be accurate (91.9%-103.7%) and precise (<4.4% imprecision). Recovery varied between 93.3% and 121.1%, and matrix effect ranged from -25.5% to -4.9%. Hemolysis, lipemia, and dilution did not impact quantitation. Plasma stability was confirmed after three freeze-thaw cycles, 24 h at room temperature, and 4 months at -80°C. Incurred sample reanalysis yielded 94.4% samples within 20% difference (n = 36). External validation showed a mean bias of -11.1%. Pharmacokinetic (PK) data obtained from three patients suggested variable concentration time profiles, warranting collection of further data. The assay proved to be suitable for tazemetostat quantitation in human plasma and will support clinical studies by defining tazemetostat PKs.
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Affiliation(s)
- Marco Orleni
- Cancer Therapeutics Program, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Doctoral School in Pharmacological Sciences, University of Padua, Padova, Italy
| | - Robert A Parise
- Cancer Therapeutics Program, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Julianne L Holleran
- Cancer Therapeutics Program, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Jennifer E Amengual
- Division of Hematology and Oncology, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York, USA
| | - Ye Feng
- Department of Medical Oncology and Therapeutics Research, City of Hope Comprehensive Cancer Center, Duarte, California, USA
| | - Timothy Synold
- Department of Medical Oncology and Therapeutics Research, City of Hope Comprehensive Cancer Center, Duarte, California, USA
| | - Jan H Beumer
- Cancer Therapeutics Program, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Division of Hematology-Oncology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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2
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Yuen S, Phillips TJ, Bannerji R, Marlton P, Gritti G, Seymour JF, Johnston A, Arthur C, Dodero A, Sharma S, Hirata J, Musick L, Flowers CR. Polatuzumab vedotin, venetoclax, and an anti-CD20 monoclonal antibody in relapsed/refractory B-cell non-Hodgkin lymphoma. Am J Hematol 2024; 99:1281-1289. [PMID: 38700035 DOI: 10.1002/ajh.27341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 03/25/2024] [Accepted: 04/11/2024] [Indexed: 05/05/2024]
Abstract
The Phase 2 portion of this study evaluated safety and efficacy of polatuzumab vedotin 1.8 mg/kg and venetoclax 800 mg, plus fixed-dose obinutuzumab 1000 mg or rituximab 375 mg/m2 in patients with relapsed/refractory (R/R) follicular lymphoma (FL) or diffuse large B-cell lymphoma (DLBCL), respectively. Patients with complete response (CR) or partial response (PR)/stable disease (FL) or CR/PR (DLBCL) at end of induction (EOI; six 21-day cycles) received post-induction therapy with venetoclax and obinutuzumab or rituximab, respectively. Primary endpoint was CR rate at EOI. Safety-evaluable populations included 74 patients (FL cohort; median age 64 years; progression of disease within 24 months on first-line treatment, 25.7%; FL International Prognostic Index 3-5, 54.1%; ≥2 previous therapies, 74.3%) and 57 patients (DLBCL cohort; median age 65 years; International Prognostic Index 3-5, 54.4%; ≥2 previous therapies, 77.2%). The most common non-hematologic adverse events (mostly Grades 1-2) in the FL and DLBCL cohorts were diarrhea (55.4% and 47.4%, respectively) and nausea (47.3% and 36.8%); neutropenia was the most common Grades 3-4 toxicity (39.2% and 52.6%). Efficacy-evaluable populations included patients treated at the recommended Phase 2 dose (FL, n = 49; DLBCL, n = 48). CR rates at EOI were 59.2% (FL) and 31.3% (DLBCL); median progression-free survival was 22.8 months (95% confidence interval [CI], 14.5-not evaluable) and 4.6 months (95% CI, 3.6-8.1), respectively. Polatuzumab vedotin plus venetoclax and obinutuzumab/rituximab had acceptable safety in patients with R/R FL or DLBCL, with promising response rates in R/R FL, including high-risk patients.
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MESH Headings
- Humans
- Middle Aged
- Aged
- Male
- Sulfonamides/administration & dosage
- Sulfonamides/therapeutic use
- Sulfonamides/adverse effects
- Female
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Antineoplastic Combined Chemotherapy Protocols/adverse effects
- Antineoplastic Combined Chemotherapy Protocols/administration & dosage
- Bridged Bicyclo Compounds, Heterocyclic/therapeutic use
- Bridged Bicyclo Compounds, Heterocyclic/administration & dosage
- Bridged Bicyclo Compounds, Heterocyclic/adverse effects
- Lymphoma, Large B-Cell, Diffuse/drug therapy
- Antibodies, Monoclonal, Humanized/therapeutic use
- Antibodies, Monoclonal, Humanized/administration & dosage
- Antibodies, Monoclonal, Humanized/adverse effects
- Adult
- Aged, 80 and over
- Rituximab/administration & dosage
- Rituximab/therapeutic use
- Rituximab/adverse effects
- Lymphoma, Follicular/drug therapy
- Antibodies, Monoclonal/therapeutic use
- Antibodies, Monoclonal/administration & dosage
- Antibodies, Monoclonal/adverse effects
- Recurrence
- Immunoconjugates
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Affiliation(s)
- Sam Yuen
- Calvary Mater Newcastle Hospital, Waratah, New South Wales, Australia
| | - Tycel J Phillips
- University of Michigan Comprehensive Cancer Center, Ann Arbor, Michigan, USA
| | - Rajat Bannerji
- Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey, USA
| | - Paula Marlton
- Princess Alexandra Hospital, Brisbane, Queensland, Australia
- Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | | | - John F Seymour
- Peter MacCallum Cancer Centre, Royal Melbourne Hospital, and University of Melbourne, Melbourne, Victoria, Australia
| | - Anna Johnston
- Royal Hobart Hospital (RHH), Hobart, Tasmania, Australia
| | - Christopher Arthur
- Royal North Shore Hospital (RNSH), St Leonards, New South Wales, Australia
| | - Anna Dodero
- Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | | | - Jamie Hirata
- Genentech, Inc., South San Francisco, California, USA
| | - Lisa Musick
- Genentech, Inc., South San Francisco, California, USA
| | - Christopher R Flowers
- The Winship Cancer Institute of Emory University, Atlanta, Georgia, USA
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, CPRIT Scholar in Cancer Research, Houston, Texas, USA
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3
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Wang Z, Che S, Yu Z. PROTAC: Novel degradable approach for different targets to treat breast cancer. Eur J Pharm Sci 2024; 198:106793. [PMID: 38740076 DOI: 10.1016/j.ejps.2024.106793] [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: 03/21/2024] [Revised: 04/22/2024] [Accepted: 05/05/2024] [Indexed: 05/16/2024]
Abstract
The revolutionary Proteolysis Targeting Chimera (PROTACs) have the exciting potential to reshape the pharmaceutical industry landscape by leveraging the ubiquitin-proteasome system for targeted protein degradation. Breast cancer, the most prevalent cancer in women, could be treated using PROTAC therapy. Although substantial work has been conducted, there is not yet a comprehensive overview or progress update on PROTAC therapy for breast cancer. Hence, in this article, we've compiled recent research progress focusing on different breast cancer target proteins, such as estrogen receptor (ER), BET, CDK, HER2, PARP, EZH2, etc. This resource aims to serve as a guide for future PROTAC-based breast cancer treatment design.
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Affiliation(s)
- Zhenjie Wang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China; Office of Drug Clinical Trials, The People's Hospital of Gaozhou, Maoming, 525200, PR China
| | - Siyao Che
- Hepatological Surgery Department, The People's Hospital of Gaozhou, Maoming, 525200, PR China.
| | - Zhiqiang Yu
- Department of Laboratory Medicine, Dongguan Institute of Clinical Cancer Research, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan 523018, PR China.
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4
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Yaniv B, Tanenbaum B, Kazakova V, Patel SA. Translational insights into the genetics and immunobiology of relapsed/refractory follicular lymphoma. Leuk Res 2024; 142:107519. [PMID: 38761562 DOI: 10.1016/j.leukres.2024.107519] [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: 02/19/2024] [Revised: 04/28/2024] [Accepted: 05/08/2024] [Indexed: 05/20/2024]
Abstract
Although follicular lymphoma (FL) is traditionally classified as an indolent subtype of B cell non-Hodgkin lymphoma, clinical trajectories are often diverse based on unique disease biology, and many patients will eventually experience relapse of their disease. Furthermore, progression of disease within 24 months is associated with increased mortality rates for FL. In the last five years, we have witnessed an upsurge in the commercial availability of targeted therapies for relapsed/refractory (R/R) FL, including chimeric antigen receptor-T (CAR-T) products, bispecific T cell engagers (BiTEs), epigenetic modifier therapies, and next-generation Bruton tyrosine kinase (BTK) inhibitors. Furthermore, clinical trial options have increased tremendously and now include combinatorial strategies that exert synergy against malignant germinal center B cells. Here, we provide a 2024 update of novel therapeutic agents whose development has been informed by recent advances in the genetics and immunobiology of R/R FL. Specifically, we emphasize high-value targeted therapeutics, including anti-CD3 x anti-CD20 BiTEs and adoptive T cell therapies. We discuss prospects on selection and sequencing of BiTEs and CAR-T therapies for patients with R/R FL. We underscore the principles of FL pathobiology that are paving way for future drug discovery and shed insight into therapeutic targeting within nodal basins based on our increasing understanding of the FL microenvironment. Finally, we summarize how a greater knowledge of FL immunobiology can inform risk stratification and therapy selection on a personalized basis for R/R FL in 2025.
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MESH Headings
- Humans
- Lymphoma, Follicular/therapy
- Lymphoma, Follicular/genetics
- Lymphoma, Follicular/immunology
- Lymphoma, Follicular/pathology
- Neoplasm Recurrence, Local/genetics
- Neoplasm Recurrence, Local/therapy
- Neoplasm Recurrence, Local/immunology
- Neoplasm Recurrence, Local/pathology
- Immunotherapy, Adoptive/methods
- Drug Resistance, Neoplasm/genetics
- Translational Research, Biomedical
- Molecular Targeted Therapy/methods
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Affiliation(s)
- Benyamin Yaniv
- Dept. of Medicine - Division of Hematology/Oncology, UMass Memorial Medical Center, UMass Chan Medical School, Worcester, MA, United States
| | - Benjamin Tanenbaum
- Dept. of Medicine - Division of Hematology/Oncology, UMass Memorial Medical Center, UMass Chan Medical School, Worcester, MA, United States
| | - Vera Kazakova
- Dept. of Medicine - Division of Hematology/Oncology, UMass Memorial Medical Center, UMass Chan Medical School, Worcester, MA, United States
| | - Shyam A Patel
- Dept. of Medicine - Division of Hematology/Oncology, UMass Memorial Medical Center, UMass Chan Medical School, Worcester, MA, United States; Center for Clinical & Translational Science, UMass Chan Medical School, Worcester, MA, United States; Cancer Biology Program, Morningside Graduate School of Biomedical Sciences, UMass Chan Medical School, Worcester, MA, United States.
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5
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Fowler NH, Chavez JC, Riedell PA. Moving T-Cell Therapies into the Standard of Care for Patients with Relapsed or Refractory Follicular Lymphoma: A Review. Target Oncol 2024:10.1007/s11523-024-01070-z. [PMID: 38896212 DOI: 10.1007/s11523-024-01070-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2024] [Indexed: 06/21/2024]
Abstract
Patients with follicular lymphoma, an indolent form of non-Hodgkin lymphoma, typically experience multiple relapses over their disease course. Periods of remission become progressively shorter with worse clinical outcomes after each subsequent line of therapy. Currently, no clear standard of care/preferred treatment approach exists for patients with relapsed or refractory follicular lymphoma. As novel agents continue to emerge for treatment in the third-line setting, guidance is needed for selecting the most appropriate therapy for each patient. Several classes of targeted therapeutic agents, including monoclonal antibodies, phosphoinositide 3-kinase inhibitors, enhancer of zeste homolog 2 inhibitors, chimeric antigen receptor (CAR) T-cell therapies, and bispecific antibodies, have been approved by regulatory authorities based on clinical benefit in patients with relapsed or refractory follicular lymphoma. Additionally, antibody-drug conjugates and other immunocellular therapies are being evaluated in this setting. Effective integration of CAR-T cell therapy into the treatment paradigm after two or more prior therapies requires appropriate patient selection based on transformation status following a rebiopsy; a risk evaluation based on age, fitness, and remission length; and eligibility for CAR-T cell therapy. Consideration of important logistical factors (e.g., proximity to the treatment center and caregiver support during key periods of CAR-T cell therapy) is also critical. Overall, an individualized treatment plan that considers patient-related factors (e.g., age, disease status, tumor burden, comorbidities) and prior treatment types is recommended for patients with relapsed or refractory follicular lymphoma. Future analyses of real-world data and a better understanding of mechanisms of relapse are needed to further refine patient selection and identify optimal sequencing of therapies in this setting.
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Affiliation(s)
| | - Julio C Chavez
- Department of Malignant Hematology, Moffitt Cancer Center, Tampa, FL, USA
| | - Peter A Riedell
- David and Etta Jonas Center for Cellular Therapy, University of Chicago, Chicago, IL, USA
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6
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Noerenberg D, Damm F. Beyond the code: the role of histone methylation in cancer resistance and therapy. Signal Transduct Target Ther 2024; 9:161. [PMID: 38866765 PMCID: PMC11169273 DOI: 10.1038/s41392-024-01878-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/01/2024] [Accepted: 05/13/2024] [Indexed: 06/14/2024] Open
Affiliation(s)
- Daniel Noerenberg
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Department of Hematology, Oncology, and Cancer Immunology, Berlin, Germany
| | - Frederik Damm
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Department of Hematology, Oncology, and Cancer Immunology, Berlin, Germany.
- German Cancer Consortium (Deutsches Konsortium für Translationale Krebsforschung, DKTK), Partner Site, Berlin, Germany.
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7
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Rajput N, Jadav T, Sengupta P. Identification and characterization of the rat in-vivo and in-vitro metabolites of tazemetostat using LC-QTOF-MS. Food Chem Toxicol 2024; 190:114785. [PMID: 38849047 DOI: 10.1016/j.fct.2024.114785] [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: 02/29/2024] [Revised: 05/27/2024] [Accepted: 05/31/2024] [Indexed: 06/09/2024]
Abstract
In drug discovery, metabolite profiling unveils biotransformation pathways and potential toxicant formation, guiding selection of candidates with optimal pharmacokinetics and safety profiles. Tazemetostat (TAZ) is employed in treating locally advanced or metastatic epithelioid sarcoma. Identification of drug metabolites are of significant importance in improving safety, efficacy and reduced toxicity of drugs. The current study aimed to investigate the comprehensive metabolic fate of TAZ using different in vivo (rat) and in vitro (RLM, HLM, HS9) models. For in vivo studies, drug was orally administered to Sprague-Dawley rats with subsequent analysis of plasma, feces and urine samples. A total of 21 new metabolites were detected across various matrices and were separated on Phenomenex kinetex C18 (2.5 μm; 150 × 4.6 mm) column using acetonitrile and 0.1% formic acid in water as mobile phase. LC-QTOF-MS/MS and NMR techniques were employed to identify and characterize the metabolites from extracted samples. The major metabolic routes found in biotransformation of TAZ were hydroxylation, N-dealkylation, N-oxidation, hydrogenation, hydrolysis and N-acetylation. In silico toxicity revealed potential immunotoxicity for TAZ and few of its metabolites. This research article is the first time to discuss the complete metabolite profiling including identification and characterization of TAZ metabolites as well as its biotransformation mechanism.
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Affiliation(s)
- Niraj Rajput
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Opp. Airforce Station, Palaj, Gandhinagar, 382355, Gujarat, India
| | - Tarang Jadav
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Opp. Airforce Station, Palaj, Gandhinagar, 382355, Gujarat, India
| | - Pinaki Sengupta
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Opp. Airforce Station, Palaj, Gandhinagar, 382355, Gujarat, India.
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8
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LaBella KA, Hsu WH, Li J, Qi Y, Liu Y, Liu J, Wu CC, Liu Y, Song Z, Lin Y, Blecher JM, Jiang S, Shang X, Han J, Spring DJ, Zhang J, Xia Y, DePinho RA. Telomere dysfunction alters intestinal stem cell dynamics to promote cancer. Dev Cell 2024; 59:1475-1486.e5. [PMID: 38574731 DOI: 10.1016/j.devcel.2024.03.020] [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: 11/26/2023] [Revised: 01/22/2024] [Accepted: 03/11/2024] [Indexed: 04/06/2024]
Abstract
Telomere dynamics are linked to aging hallmarks, and age-associated telomere loss fuels the development of epithelial cancers. In Apc-mutant mice, the onset of DNA damage associated with telomere dysfunction has been shown to accelerate adenoma initiation via unknown mechanisms. Here, we observed that Apc-mutant mice engineered to experience telomere dysfunction show accelerated adenoma formation resulting from augmented cell competition and clonal expansion. Mechanistically, telomere dysfunction induces the repression of EZH2, resulting in the derepression of Wnt antagonists, which causes the differentiation of adjacent stem cells and a relative growth advantage to Apc-deficient telomere dysfunctional cells. Correspondingly, in this mouse model, GSK3β inhibition countered the actions of Wnt antagonists on intestinal stem cells, resulting in impaired adenoma formation of telomere dysfunctional Apc-mutant cells. Thus, telomere dysfunction contributes to cancer initiation through altered stem cell dynamics, identifying an interception strategy for human APC-mutant cancers with shortened telomeres.
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Affiliation(s)
- Kyle A LaBella
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Wen-Hao Hsu
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jiexi Li
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yutao Qi
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yonghong Liu
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jingjing Liu
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Chia-Chin Wu
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yang Liu
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Zingzhi Song
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yiyun Lin
- Department of Genetics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jonathan M Blecher
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Shan Jiang
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Xiaoying Shang
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jincheng Han
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Denise J Spring
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jianhua Zhang
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yan Xia
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Ronald A DePinho
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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9
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Bao Q, Kumar A, Wu D, Zhou J. Targeting EED as a key PRC2 complex mediator toward novel epigenetic therapeutics. Drug Discov Today 2024; 29:103986. [PMID: 38642703 DOI: 10.1016/j.drudis.2024.103986] [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: 02/23/2024] [Revised: 04/06/2024] [Accepted: 04/15/2024] [Indexed: 04/22/2024]
Abstract
EED within the PRC2 complex is crucial for chromatin regulation particularly in tumor development, making its inhibition a promising epigenetic therapeutic strategy. Significant advancement in PRC2 inhibitor development has been achieved with an approved EZH2 inhibitor in the market and with others in the clinical trials. However, current EZH2 inhibitors are limited to specific blood cancers and encounter therapeutic resistance. EED stabilizes PRC2 complex and enhances its activity through unique allosteric mechanisms, thereby acting as both a scaffold protein and a recognizer of H3K27me3 making it an attractive drug target. This review provides an overview of epigenetic therapeutic strategies targeting EED, including allosteric inhibitors, PPI inhibitors, and PROTACs, together with brief discussions on the relevant challenges, opportunities, and future directions.
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Affiliation(s)
- Qichao Bao
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Anil Kumar
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Daqing Wu
- Center for Cancer Research and Therapeutic Development and Department of Biological Sciences, Clark Atlanta University, Atlanta, GA 30314, USA
| | - Jia Zhou
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX 77555, USA.
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10
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Chen G, Zhang L, Wang R, Xie Z. Histone methylation in Epstein-Barr virus-associated diseases. Epigenomics 2024:1-13. [PMID: 38869454 DOI: 10.1080/17501911.2024.2345040] [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: 11/29/2023] [Accepted: 04/15/2024] [Indexed: 06/14/2024] Open
Abstract
Epstein-Barr virus (EBV) infection is linked to various human diseases, including both noncancerous conditions like infectious mononucleosis and cancerous diseases such as lymphoma and nasopharyngeal carcinoma. After the initial infection, EBV establishes a lifelong presence and remains latent in specific cells. This latent infection causes changes in the epigenetic marks known as histone methylation. Many studies have examined the role of histone methylation in different EBV-associated diseases, and understanding how EBV affects histone methylation can help us identify potential targets for epigenetic therapies. This review focuses on the research progress made in understanding histone methylation in well-studied EBV-associated diseases, intending to provide insights into potential strategies based on histone methylation to combat EBV-related ailments.
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Affiliation(s)
- Guanglian Chen
- Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
- Research Unit of Critical Infection in Children, 2019RU016, Chinese Academy of Medical Sciences, Beijing, 100045, China
| | - Linlin Zhang
- Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
- Research Unit of Critical Infection in Children, 2019RU016, Chinese Academy of Medical Sciences, Beijing, 100045, China
| | - Ran Wang
- Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
- Research Unit of Critical Infection in Children, 2019RU016, Chinese Academy of Medical Sciences, Beijing, 100045, China
| | - Zhengde Xie
- Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
- Research Unit of Critical Infection in Children, 2019RU016, Chinese Academy of Medical Sciences, Beijing, 100045, China
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11
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Tamaki T, Teruya K, Hirakawa H, Tomita M, Wada N. A Case of SMARCB1-Deficient Sinonasal Carcinoma With Clear Cell Morphology. Cureus 2024; 16:e59684. [PMID: 38836164 PMCID: PMC11148683 DOI: 10.7759/cureus.59684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2024] [Indexed: 06/06/2024] Open
Abstract
SMARCB1 is a gene known to cause carcinogenesis in many soft tissue tumors, including malignant rhabdoid tumors and epithelioid sarcoma. Since the first report of a subtype of sinonasal carcinoma characterized by a deficiency of the SMARCB1 gene in 2014 to date, fewer than 200 cases have been reported. We report a case of SMARCB1-deficient sinonasal carcinoma with clear cell morphology. In our case, there are no evident basaloid or plasmacytoid/rhabdoid tumor cells, which are typical histopathological features of SMARCB1-deficient sinonasal carcinoma. SMARCB1-deficient sinonasal carcinoma is prone to recurrence and has a very poor prognosis. As the development of molecularly targeted agents progresses, therapeutic efficacy is expected to improve. Simultaneously, the importance of early and accurate diagnosis of SMARCB1-deficient sinonasal carcinoma will increase. With the limited information provided by biopsy specimens, it is necessary to confirm the loss of SMARCB1 expression by immunohistochemistry and investigate the presence of SMARCB1 gene deletion by molecular genetics, considering the possibility of SMARCB1-deficient sinonasal carcinoma even in atypical cases without basaloid or plasmacytoid/rhabdoid cell morphology, as in our case.
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Affiliation(s)
- Tomoko Tamaki
- Department of Diagnostic Pathology, University of the Ryukyus Hospital, Nishihara, JPN
| | - Kyonosuke Teruya
- Department of Diagnostic Pathology, University of the Ryukyus Hospital, Nishihara, JPN
| | - Hitoshi Hirakawa
- Department of Otorhinolaryngology, Head and Neck Surgery, Graduate School of Medicine, University of the Ryukyus, Nishihara, JPN
| | - Mariko Tomita
- Department of Pathology and Oncology, Graduate School of Medicine, University of the Ryukyus, Nishihara, JPN
| | - Naoki Wada
- Department of Pathology and Oncology, Graduate School of Medicine, University of the Ryukyus, Nishihara, JPN
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12
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Hellmuth JC, Koch R, Weigert O. [Targeted therapies in the management of malignant lymphoma - is the end of conventional chemotherapy near?]. Dtsch Med Wochenschr 2024; 149:621-629. [PMID: 38749438 DOI: 10.1055/a-2160-5353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Advances in the understanding of the biology of malignant lymphoma has facilitated the development of numerous molecularly targeted therapies. The incorporation of these precision therapeutics has produced more effective and often less-toxic treatment regimens leading to a significant improvement of treatment outcomes for individuals with lymphoid malignancies.In relapsed diseases, molecularly targeted therapeutic approaches have demonstrated superior outcomes compared to conventional chemotherapy, leading to a growing number of patients being treated entirely chemotherapy-free. This review outlines the current landscape of targeted therapies for both B-cell (B-NHL) and T-cell non-Hodgkin lymphomas (T-NHL) and provides an overview of targeted agents currently approved for the treatment of malignant lymphoma.
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13
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Zhuang S, Yang Z, Cui Z, Zhang Y, Che F. Epigenetic alterations and advancement of lymphoma treatment. Ann Hematol 2024; 103:1435-1454. [PMID: 37581713 DOI: 10.1007/s00277-023-05395-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 07/29/2023] [Indexed: 08/16/2023]
Abstract
Lymphomas, complex and heterogeneous malignant tumors, originate from the lymphopoietic system. These tumors are notorious for their high recurrence rates and resistance to treatment, which leads to poor prognoses. As ongoing research has shown, epigenetic modifications like DNA methylation, histone modifications, non-coding RNA regulation, and RNA modifications play crucial roles in lymphoma pathogenesis. Epigenetic modification-targeting drugs have exhibited therapeutic efficacy and tolerability in both monotherapy and combination lymphoma therapy. This review discusses pathogenic mechanisms and potential epigenetic therapeutic targets in common lymphomas, offering new avenues for lymphoma diagnosis and treatment. We also discuss the shortcomings of current lymphoma treatments, while suggesting potential areas for future research, in order to improve the prediction and prognosis of lymphoma.
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Affiliation(s)
- Shuhui Zhuang
- Affiliated Hospital of Weifang Medical University, School of Clinical Medicine, Weifang Medical University, Weifang, China
- Department of Hematology, Linyi People's Hospital, Shandong University, Linyi, 276000, Shandong, China
| | - Zhaobo Yang
- Spine Surgery, Linyi People's Hospital, Shandong University, Linyi, 276000, Shandong, China
| | - Zhuangzhuang Cui
- Department of Hematology, Linyi People's Hospital, Shandong University, Linyi, 276000, Shandong, China
| | - Yuanyuan Zhang
- Department of Hematology, Linyi People's Hospital, Shandong University, Linyi, 276000, Shandong, China.
- Department of Hematology, Shandong Key Laboratory of Immunohematology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People's Republic of China.
| | - Fengyuan Che
- Department of Neurology, Central Laboratory and Key Laboratory of Neurophysiology, Linyi People's Hospital, Shandong University, Linyi, 276000, China.
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14
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Orleni M, Beumer JH. Pharmacology and pharmacokinetics of tazemetostat. Cancer Chemother Pharmacol 2024; 93:509-517. [PMID: 38520556 DOI: 10.1007/s00280-024-04658-4] [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: 01/02/2024] [Accepted: 02/17/2024] [Indexed: 03/25/2024]
Abstract
Tazemetostat, a novel oral selective inhibitor of enhancer of zeste homolog 2 (EZH2), was approved by the Food and Drug Administration (FDA) in 2020 for use in patients with advanced epithelioid sarcoma or relapsed/refractory (R/R) EZH2-mutated follicular lymphoma. These indications were approved by the FDA trough accelerated approval based on objective response rate and duration of response that resulted from phase 2 clinical trials. Tazemetostat competes with S-adenosylmethionine (SAM) cofactor to inhibit EZH2, reducing the levels of trimethylated lysine 27 of histone 3 (H3K27me3), considered as pharmacodynamic marker. Tazemetostat is orally bioavailable, characterized by rapid absorption and dose-proportional exposure, which is not influenced by coadministration with food or gastric acid reducing agents. It highly distributes in tissues, but with limited access to central nervous system. Tazemetostat is metabolized by CYP3A in the liver to 3 major inactive metabolites (M1, M3, and M5), has a short half-life and is mainly excreted in feces. Drug-drug interactions were shown with moderate CYP3A inhibitors as fluconazole, leading the FDA to recommend a 50% dose reduction, while studies investigating coadministration of tazemetostat with strong inhibitors/inducers are ongoing. No dosage modifications are recommended based on renal or hepatic dysfunctions. Overall, tazemetostat is the first-in-class EZH2 inhibitor approved by the FDA for cancer treatment. Current clinical studies are evaluating combination therapies in patients with several malignancies.
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Affiliation(s)
- Marco Orleni
- Cancer Therapeutics Program, UPMC Hillman Cancer Center, Room G27E, Hillman Research Pavilion, 5117 Centre Avenue, Pittsburgh, PA, 15213-1863, USA
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Doctoral School in Pharmacological Sciences, University of Padua, Padua, Italy
| | - Jan H Beumer
- Cancer Therapeutics Program, UPMC Hillman Cancer Center, Room G27E, Hillman Research Pavilion, 5117 Centre Avenue, Pittsburgh, PA, 15213-1863, USA.
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA.
- Division of Hematology-Oncology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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15
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Sánchez-Beato M, Méndez M, Guirado M, Pedrosa L, Sequero S, Yanguas-Casás N, de la Cruz-Merino L, Gálvez L, Llanos M, García JF, Provencio M. A genetic profiling guideline to support diagnosis and clinical management of lymphomas. Clin Transl Oncol 2024; 26:1043-1062. [PMID: 37672206 PMCID: PMC11026206 DOI: 10.1007/s12094-023-03307-1] [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: 06/27/2023] [Accepted: 08/09/2023] [Indexed: 09/07/2023]
Abstract
The new lymphoma classifications (International Consensus Classification of Mature Lymphoid Neoplasms, and 5th World Health Organization Classification of Lymphoid Neoplasms) include genetics as an integral part of lymphoma diagnosis, allowing better lymphoma subclassification, patient risk stratification, and prediction of treatment response. Lymphomas are characterized by very few recurrent and disease-specific mutations, and most entities have a heterogenous genetic landscape with a long tail of recurrently mutated genes. Most of these occur at low frequencies, reflecting the clinical heterogeneity of lymphomas. Multiple studies have identified genetic markers that improve diagnostics and prognostication, and next-generation sequencing is becoming an essential tool in the clinical laboratory. This review provides a "next-generation sequencing" guide for lymphomas. It discusses the genetic alterations of the most frequent mature lymphoma entities with diagnostic, prognostic, and predictive potential and proposes targeted sequencing panels to detect mutations and copy-number alterations for B- and NK/T-cell lymphomas.
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Affiliation(s)
- Margarita Sánchez-Beato
- Servicio de Oncología Médica, Grupo de Investigación en Linfomas, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, Madrid, Spain.
- Grupo Oncológico para el Tratamiento y Estudio de los Linfomas-GOTEL, Madrid, Spain.
| | - Miriam Méndez
- Servicio de Oncología Médica, Grupo de Investigación en Linfomas, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, Madrid, Spain
- Grupo Oncológico para el Tratamiento y Estudio de los Linfomas-GOTEL, Madrid, Spain
- Servicio de Oncología Médica, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, Madrid, Spain
| | - María Guirado
- Grupo Oncológico para el Tratamiento y Estudio de los Linfomas-GOTEL, Madrid, Spain
- Servicio de Oncología Médica, Hospital General Universitario de Elche, Alicante, Spain
| | - Lucía Pedrosa
- Servicio de Oncología Médica, Grupo de Investigación en Linfomas, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, Madrid, Spain
| | - Silvia Sequero
- Grupo Oncológico para el Tratamiento y Estudio de los Linfomas-GOTEL, Madrid, Spain
- Servicio de Oncología Médica, Hospital Universitario San Cecilio, Granada, Spain
| | - Natalia Yanguas-Casás
- Servicio de Oncología Médica, Grupo de Investigación en Linfomas, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, Madrid, Spain
| | - Luis de la Cruz-Merino
- Grupo Oncológico para el Tratamiento y Estudio de los Linfomas-GOTEL, Madrid, Spain
- Servicio de Oncología Médica, Facultad de Medicina, Hospital Universitario Virgen Macarena, Universidad de Sevilla, Instituto de Biomedicina de Sevilla (IBID)/CSIC, Seville, Spain
| | - Laura Gálvez
- Grupo Oncológico para el Tratamiento y Estudio de los Linfomas-GOTEL, Madrid, Spain
- Unidad de Gestión Clínica Intercentros de Oncología Médica, Hospitales Universitarios Regional y Virgen de la Victoria, Málaga, Spain
| | - Marta Llanos
- Grupo Oncológico para el Tratamiento y Estudio de los Linfomas-GOTEL, Madrid, Spain
- Servicio de Oncología Médica, Hospital Universitario de Canarias, La Laguna, Sta. Cruz de Tenerife, Spain
| | - Juan Fernando García
- Servicio de Anatomía Patológica, Hospital MD Anderson Cancer Center, Madrid, Spain
| | - Mariano Provencio
- Servicio de Oncología Médica, Grupo de Investigación en Linfomas, Hospital Universitario Puerta de Hierro-Majadahonda, IDIPHISA, Madrid, Spain
- Grupo Oncológico para el Tratamiento y Estudio de los Linfomas-GOTEL, Madrid, Spain
- Servicio de Oncología Médica, Departamento de Medicina, Facultad de Medicina, Hospital Universitario Puerta de Hierro-Majadahonda, Universidad Autónoma de Madrid, IDIPHISA, Madrid, Spain
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16
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Weiss JM, Phillips TJ. Taking a BiTE out of Lymphoma: Bispecific Antibodies in B-Cell Non-Hodgkin Lymphoma. Cancers (Basel) 2024; 16:1724. [PMID: 38730677 PMCID: PMC11083268 DOI: 10.3390/cancers16091724] [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: 03/25/2024] [Revised: 04/24/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
B-cell non-Hodgkin's lymphoma (NHL) refers to a heterogenous group of diseases, all of which have a wide range of treatment strategies and patient outcomes. There have been multiple novel, immune-based therapies approved in NHL in the last decade, including bispecific antibodies (BsAbs) and chimeric antigen receptor therapy (CAR-T). With a host of new therapies, an important next step will be determining how these therapies should be sequenced in contemporary management strategies. This review seeks to offer a framework for the ways in which BsABs can be incorporated into the current management paradigm for NHL, with special attention paid to diffuse large B-cell lymphoma (DLBCL), follicular lymphoma (FL), and mantle cell lymphoma (MCL).
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Affiliation(s)
- Jonathan M. Weiss
- Rogel Comprehensive Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA;
| | - Tycel J. Phillips
- City of Hope Comprehensive Cancer Center, Department of Hematology and Hematopoietic Cell Transplantation, Division of Lymphoma, Duarte, CA 91010, USA
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17
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Dreyling M, Fowler NH, Dickinson M, Martinez-Lopez J, Kolstad A, Butler J, Ghosh M, Popplewell L, Chavez JC, Bachy E, Kato K, Harigae H, Kersten MJ, Andreadis C, Riedell PA, Ho PJ, Pérez-Simón JA, Chen AI, Nastoupil LJ, von Tresckow B, María Ferreri AJ, Teshima T, Patten PEM, McGuirk JP, Petzer AL, Offner F, Viardot A, Zinzani PL, Malladi R, Paule I, Zia A, Awasthi R, Han X, Germano D, O’Donovan D, Ramos R, Maier HJ, Masood A, Thieblemont C, Schuster SJ. Durable response after tisagenlecleucel in adults with relapsed/refractory follicular lymphoma: ELARA trial update. Blood 2024; 143:1713-1725. [PMID: 38194692 PMCID: PMC11103095 DOI: 10.1182/blood.2023021567] [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: 06/23/2023] [Revised: 11/21/2023] [Accepted: 12/16/2023] [Indexed: 01/11/2024] Open
Abstract
ABSTRACT Tisagenlecleucel is approved for adults with relapsed/refractory (r/r) follicular lymphoma (FL) in the third- or later-line setting. The primary analysis (median follow-up, 17 months) of the phase 2 ELARA trial reported high response rates and excellent safety profile in patients with extensively pretreated r/r FL. Here, we report longer-term efficacy, safety, pharmacokinetic, and exploratory biomarker analyses after median follow-up of 29 months (interquartile range, 22.2-37.7). As of 29 March 2022, 97 patients with r/r FL (grades 1-3A) received tisagenlecleucel infusion (0.6 × 108-6 × 108 chimeric antigen receptor-positive viable T cells). Bridging chemotherapy was allowed. Baseline clinical factors, tumor microenvironment, blood soluble factors, and circulating blood cells were correlated with clinical response. Cellular kinetics were assessed by quantitative polymerase chain reaction. Median progression-free survival (PFS), duration of response (DOR), and overall survival (OS) were not reached. Estimated 24-month PFS, DOR, and OS rates in all patients were 57.4% (95% confidence interval [CI], 46.2-67), 66.4% (95% CI, 54.3-76), and 87.7% (95% CI, 78.3-93.2), respectively. Complete response rate and overall response rate were 68.1% (95% CI, 57.7-77.3) and 86.2% (95% CI, 77.5-92.4), respectively. No new safety signals or treatment-related deaths were reported. Low levels of tumor-infiltrating LAG3+CD3+ exhausted T cells and higher baseline levels of naïve CD8+ T cells were associated with improved outcomes. Tisagenlecleucel continued to demonstrate highly durable efficacy and a favorable safety profile in this extended follow-up of 29 months in patients with r/r FL enrolled in ELARA. This trial was registered at www.clinicaltrials.gov as #NCT03568461.
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Affiliation(s)
- Martin Dreyling
- Department of Medicine, Medical Clinic III, Ludwig-Maximilian-University Hospital, Munich, Germany
| | - Nathan Hale Fowler
- The University of Texas MD Anderson Cancer Center, Houston, TX
- BostonGene, Waltham, MA
| | - Michael Dickinson
- Peter MacCallum Cancer Centre, Royal Melbourne Hospital and the Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Joaquin Martinez-Lopez
- Hospital 12 De Octubre, Complutense University, Centro Nacional de Investigaciones Oncológicas, Madrid, Spain
| | | | - Jason Butler
- Royal Brisbane Hospital, Herston, QLD, Australia
| | - Monalisa Ghosh
- Division of Hematology/Oncology, Michigan Medicine University of Michigan, Ann Arbor, MI
| | | | - Julio C. Chavez
- Department of Malignant Hematology, Moffitt Cancer Center, Tampa, FL
| | - Emmanuel Bachy
- Clinical Hematology, Hospices Civils de Lyon and Université Claude Bernard Lyon 1, Lyon, France
| | - Koji Kato
- Department of Hematology, Oncology, and Cardiovascular Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Hideo Harigae
- Department of Hematology, Tohoku University Hospital, Sendai, Japan
| | - Marie José Kersten
- Department of Hematology, Amsterdam UMC, University of Amsterdam, Cancer Center Amsterdam, Amsterdam, The Netherlands, on behalf of Stichting Hemato-Oncologie voor Volwassenen Nederland/Lunenburg Lymphoma Phase I/II Consortium
| | - Charalambos Andreadis
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA
| | - Peter A. Riedell
- David and Etta Jonas Center for Cellular Therapy, University of Chicago, Chicago, IL
| | - P. Joy Ho
- Institute of Haematology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - José Antonio Pérez-Simón
- Department of Hematology, University Hospital Virgen del Rocío, Instituto de Biomedicina de Sevilla Consejo Superior de Investigaciones Cientificas, Universidad de Sevilla, Seville, Spain
| | - Andy I. Chen
- Oregon Health and Science University, Portland, OR
| | - Loretta J. Nastoupil
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Bastian von Tresckow
- Department I of Internal Medicine, Medical Faculty and University Hospital Cologne, University of Cologne, Cologne, Germany
- Department of Hematology and Stem Cell Transplantation, West German Cancer Center and German Cancer Consortium, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Andrés José María Ferreri
- Unit of Lymphoid Malignancies, Department of Onco-Haematology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Takanori Teshima
- Department of Hematology, Hokkaido University Hospital, Sapporo, Japan
| | - Piers E. M. Patten
- Comprehensive Cancer Centre, King’s College London, London, United Kingdom
- Department of Haematology, King’s College Hospital, London, United Kingdom
| | - Joseph P. McGuirk
- Division of Hematologic Malignancies and Cellular Therapeutics, University of Kansas Cancer l Center, Westwood, KS
| | - Andreas L. Petzer
- Internal Medicine I, Ordensklinikum Linz Barmherzige Schwestern-Elisabethinen, Linz, Austria
| | | | - Andreas Viardot
- Department of Internal Medicine III, University Hospital of Ulm, Ulm, Germany
| | - Pier Luigi Zinzani
- IRCCS Azienda Ospedaliero-Universitaria di Bologna Istituto di Ematologia “Seràgnoli,” Bologna, Italy
- Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, Università di Bologna, Bologna, Italy
| | - Ram Malladi
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom
| | | | | | - Rakesh Awasthi
- Novartis Institutes for BioMedical Research, East Hanover, NJ
| | - Xia Han
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | | | | | - Roberto Ramos
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | | | - Aisha Masood
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | | | - Stephen J. Schuster
- Lymphoma Program, Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA
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18
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Romero P, Richart L, Aflaki S, Petitalot A, Burton M, Michaud A, Masliah-Planchon J, Kuhnowski F, Le Cam S, Baliñas-Gavira C, Méaudre C, Luscan A, Hamza A, Legoix P, Vincent-Salomon A, Wassef M, Holoch D, Margueron R. EZH2 mutations in follicular lymphoma distort H3K27me3 profiles and alter transcriptional responses to PRC2 inhibition. Nat Commun 2024; 15:3452. [PMID: 38658543 PMCID: PMC11043461 DOI: 10.1038/s41467-024-47701-x] [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: 01/19/2023] [Accepted: 04/08/2024] [Indexed: 04/26/2024] Open
Abstract
Mutations in chromatin regulators are widespread in cancer. Among them, the histone H3 lysine 27 methyltransferase Polycomb Repressive Complex 2 (PRC2) shows distinct alterations according to tumor type. This specificity is poorly understood. Here, we model several PRC2 alterations in one isogenic system to reveal their comparative effects. Focusing then on lymphoma-associated EZH2 mutations, we show that Ezh2Y641F induces aberrant H3K27 methylation patterns even without wild-type Ezh2, which are alleviated by partial PRC2 inhibition. Remarkably, Ezh2Y641F rewires the response to PRC2 inhibition, leading to induction of antigen presentation genes. Using a unique longitudinal follicular lymphoma cohort, we further link EZH2 status to abnormal H3K27 methylation. We also uncover unexpected variability in the mutational landscape of successive biopsies, pointing to frequent co-existence of different clones and cautioning against stratifying patients based on single sampling. Our results clarify how oncogenic PRC2 mutations disrupt chromatin and transcription, and the therapeutic vulnerabilities this creates.
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Affiliation(s)
- Pierre Romero
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
- Institut Curie, Department of Pathology, Paris Sciences et Lettres Research University, Paris, France
| | - Laia Richart
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Setareh Aflaki
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Ambre Petitalot
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Megan Burton
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Audrey Michaud
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Julien Masliah-Planchon
- Institut Curie, Pharmacogenetics Unit, Department of Genetics, Paris Sciences et Lettres Research University, Paris, France
| | - Frédérique Kuhnowski
- Institut Curie, Department of Clinical Hematology, Paris Sciences et Lettres Research University, Paris, France
| | - Samuel Le Cam
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Carlos Baliñas-Gavira
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Céline Méaudre
- Institut Curie, Department of Pathology, Paris Sciences et Lettres Research University, Paris, France
| | - Armelle Luscan
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Abderaouf Hamza
- Institut Curie, Pharmacogenetics Unit, Department of Genetics, Paris Sciences et Lettres Research University, Paris, France
| | - Patricia Legoix
- Institut Curie, Genomics of Excellence (ICGex) Platform, Paris Sciences et Lettres Research University, Paris, France
| | - Anne Vincent-Salomon
- Institut Curie, Department of Pathology, Paris Sciences et Lettres Research University, Paris, France
| | - Michel Wassef
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Daniel Holoch
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France.
| | - Raphaël Margueron
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France.
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19
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Shi MX, Ding X, Tang L, Cao WJ, Su B, Zhang J. PROTAC EZH2 degrader-1 overcomes the resistance of podophyllotoxin derivatives in refractory small cell lung cancer with leptomeningeal metastasis. BMC Cancer 2024; 24:504. [PMID: 38644473 PMCID: PMC11034131 DOI: 10.1186/s12885-024-12244-3] [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: 02/02/2024] [Accepted: 04/09/2024] [Indexed: 04/23/2024] Open
Abstract
BACKGROUND Leptomeningeal metastasis (LM) of small cell lung cancer (SCLC) is a highly detrimental occurrence associated with severe neurological disorders, lacking effective treatment currently. Proteolysis-targeting chimeric molecules (PROTACs) may provide new therapeutic avenues for treatment of podophyllotoxin derivatives-resistant SCLC with LM, warranting further exploration. METHODS The SCLC cell line H128 expressing luciferase were mutated by MNNG to generate H128-Mut cell line. After subcutaneous inoculation of H128-Mut into nude mice, H128-LM and H128-BPM (brain parenchymal metastasis) cell lines were primarily cultured from LM and BPM tissues individually, and employed to in vitro drug testing. The SCLC-LM mouse model was established by inoculating H128-LM into nude mice via carotid artery and subjected to in vivo drug testing. RNA-seq and immunoblotting were conducted to uncover the molecular targets for LM. RESULTS The SCLC-LM mouse model was successfully established, confirmed by in vivo live imaging and histological examination. The upregulated genes included EZH2, SLC44A4, VEGFA, etc. in both BPM and LM cells, while SLC44A4 was particularly upregulated in LM cells. When combined with PROTAC EZH2 degrader-1, the drug sensitivity of cisplatin, etoposide (VP16), and teniposide (VM26) for H128-LM was significantly increased in vitro. The in vivo drug trials with SCLC-LM mouse model demonstrated that PROTAC EZH2 degrader-1 plus VM26 or cisplatin/ VP16 inhibited H128-LM tumour significantly compared to VM26 or cisplatin/ VP16 alone (P < 0.01). CONCLUSION The SCLC-LM model effectively simulates the pathophysiological process of SCLC metastasis to the leptomeninges. PROTAC EZH2 degrader-1 overcomes chemoresistance in SCLC, suggesting its potential therapeutic value for SCLC LM.
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Affiliation(s)
- Min-Xing Shi
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, 200092, Shanghai, China
| | - Xi Ding
- Department of Tuberculosis, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, 200092, Shanghai, China
| | - Liang Tang
- Department of Central Laboratory, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, 200092, Shanghai, China
| | - Wei-Jun Cao
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, 200092, Shanghai, China.
| | - Bo Su
- Department of Central Laboratory, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, 200092, Shanghai, China.
| | - Jie Zhang
- Department of Oncology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, 200092, Shanghai, China.
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20
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Wang H, Feng J, Liu Y, Qian Z, Gao D, Ran X, Zhou H, Liu L, Wang B, Fang M, Zhou H, Huang Z, Tao S, Chen Z, Su L, Su H, Yang Y, Xie X, Wu H, Sun P, Hu G, Liang A, Li Z. Phase II study of novel orally PI3Kα/δ inhibitor TQ-B3525 in relapsed and/or refractory follicular lymphoma. Signal Transduct Target Ther 2024; 9:99. [PMID: 38627366 PMCID: PMC11021411 DOI: 10.1038/s41392-024-01798-0] [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: 11/19/2023] [Revised: 03/06/2024] [Accepted: 03/10/2024] [Indexed: 04/19/2024] Open
Abstract
This registration study assessed clinical outcomes of TQ-B3525, the dual phosphatidylinositol-3-kinase (PI3K) α/δ inhibitor, in relapsed and/or refractory follicular lymphoma (R/R FL). This phase II study (ClinicalTrials.gov NCT04324879. Registered March 27, 2020) comprised run-in stage and stage 2. R/R FL patients after ≥2 lines therapies received oral 20 mg TQ-B3525 once daily in a 28-day cycle until intolerable toxicity or disease progression. Primary endpoint was independent review committee (IRC)-assessed objective response rate (ORR). Based on results (ORR, 88.0%; duration of response [DOR], 11.8 months; progression-free survival [PFS], 12.0 months) in 25 patients at run-in stage, second stage study was initiated and included 82 patients for efficacy/safety analysis. Patients received prior-line (median, 3) therapies, with 56.1% refractory to previous last therapies; 73.2% experienced POD24 at baseline. At stage 2, ORR was 86.6% (71/82; 95% CI, 77.3-93.1%), with 28 (34.2%) complete responses. Disease control rate was 95.1% due to 7 (8.5%) stable diseases. Median time to response was 1.8 months. Among 71 responders, median DOR was not reached; 18-month DOR rate was 51.6%. with median follow-up of 13.3 months, median PFS was 18.5 (95% CI, 10.2-not estimable) months. Median overall survival (OS) was not reached by cutoff date; 24-month OS rate was estimated as 86.1%. Response rates and survival data were consistent across all subgroups. Grade 3 or higher treatment-related adverse events were observed in 63 (76.8%) cases, with neutropenia (22.0%), hyperglycemia (19.5%), and diarrhea (13.4%) being common. TQ-B3525 showed favorable efficacy and safety for R/R FL patients after ≥2 lines prior therapies.
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Affiliation(s)
- Huaqing Wang
- Department of Oncology, Tianjin Union Medical Center of Nankai University, Tianjin, 300121, PR China
- The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, 300121, PR China
| | - Jifeng Feng
- Department of Medical Oncology, Jiangsu Cancer Hospital, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, PR China
| | - Yanyan Liu
- Department of Medical Oncology, Henan Cancer Hospital, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, 450003, PR China
| | - Zhengzi Qian
- Department of Medical Oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, PR China
| | - Da Gao
- Department of Hematology, The Affiliated Hospital of Inner Mongolia Medical College, 010050, Hohhot, PR China
| | - Xuehong Ran
- Department of Hematology, Weifang People's Hospital, The First Affiliated Hospital of Weifang Medical University, 261000, Weifang, PR China
| | - Hui Zhou
- Department of Lymphoma & Hematology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 410013, Changsha, PR China
| | - Lihong Liu
- Department of Hematology, The Fourth Hospital of Hebei Medical University and Hebei Tumor Hospital, 050011, Shijiazhuang, PR China
| | - Binghua Wang
- Department of Lymphoma, Weihai Central Hospital, 264400, Weihai, PR China
| | - Meiyun Fang
- Department of Hematology and Rheumatology, The Affiliated Zhongshan Hospital of Dalian University, 116001, Dalian, PR China
| | - Hebing Zhou
- Department of Hematology, Beijing Luhe Hospital, 101199, Beijing, PR China
| | - Zhenqian Huang
- Department of Hematology, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, PR China
| | - Shi Tao
- Department of Hematology, The First Affiliated Hospital of Hainan Medical College, 570102, Haikou, PR China
| | - Zhuowen Chen
- Department of Hematology, The First People's Hospital of Foshan, 528000, Foshan, PR China
| | - Liping Su
- Department of Hematology, Shanxi Cancer Hospital, 030013, Taiyuan, PR China
| | - Hang Su
- Department of Lymphoma, Senior Department of Hematology, The Fifth Medical Center of Chinese PLA General Hospital, 100039, Beijing, PR China
| | - Yu Yang
- Department of Lymphoma and Head and Neck Cancer, Fujian Cancer Hospital, 350014, Fuzhou, PR China
| | - Xiaobao Xie
- Department of Hematology, The First People's Hospital of Changzhou, The Third Affiliated Hospital of Soochow University, 213003, Changzhou, PR China
| | - Huijing Wu
- Department of Medical Oncology, Hubei Cancer Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, 430079, Wuhan, PR China
| | - Ping Sun
- Department of Medical Oncology, Yantai Yuhuangding Hospital, 264000, Yantai, PR China
| | - Guoyu Hu
- Department of Hematology, Zhuzhou Central Hospital, 412007, Zhuzhou, PR China
| | - Aibin Liang
- Department of Hematology, Tongji Hospital of Tongji University, Shanghai, 200333, PR China.
| | - Zhiming Li
- Department of Medical Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, 510060, Guangzhou, PR China.
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21
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Gao J, Shi W, Wang J, Guan C, Dong Q, Sheng J, Zou X, Xu Z, Ge Y, Yang C, Li J, Bao H, Zhong X, Cui Y. Research progress and applications of epigenetic biomarkers in cancer. Front Pharmacol 2024; 15:1308309. [PMID: 38681199 PMCID: PMC11048075 DOI: 10.3389/fphar.2024.1308309] [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: 10/06/2023] [Accepted: 03/25/2024] [Indexed: 05/01/2024] Open
Abstract
Epigenetic changes are heritable changes in gene expression without changes in the nucleotide sequence of genes. Epigenetic changes play an important role in the development of cancer and in the process of malignancy metastasis. Previous studies have shown that abnormal epigenetic changes can be used as biomarkers for disease status and disease prediction. The reversibility and controllability of epigenetic modification changes also provide new strategies for early disease prevention and treatment. In addition, corresponding drug development has also reached the clinical stage. In this paper, we will discuss the recent progress and application status of tumor epigenetic biomarkers from three perspectives: DNA methylation, non-coding RNA, and histone modification, in order to provide new opportunities for additional tumor research and applications.
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Affiliation(s)
- Jianjun Gao
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wujiang Shi
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiangang Wang
- Department of General Surgery, Tangdu Hospital, Air Force Medical University, Xi’an, China
| | - Canghai Guan
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Qingfu Dong
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jialin Sheng
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xinlei Zou
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhaoqiang Xu
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yifei Ge
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chengru Yang
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiehan Li
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Haolin Bao
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiangyu Zhong
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yunfu Cui
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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22
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Artymiuk CJ, Basu S, Koganti T, Tandale P, Balan J, Dina MA, Barr Fritcher EG, Wu X, Ashworth T, He R, Viswanatha DS. Clinical Validation of a Targeted Next-Generation Sequencing Panel for Lymphoid Malignancies. J Mol Diagn 2024:S1525-1578(24)00077-1. [PMID: 38582399 DOI: 10.1016/j.jmoldx.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/16/2024] [Accepted: 03/22/2024] [Indexed: 04/08/2024] Open
Abstract
Lymphoid malignancies are a heterogeneous group of hematological disorders characterized by a diverse range of morphologic, immunophenotypic, and clinical features. Next-generation sequencing (NGS) is increasingly being applied to delineate the complex nature of these malignancies and identify high-value biomarkers with diagnostic, prognostic, or therapeutic benefit. However, there are various challenges in using NGS routinely to characterize lymphoid malignancies, including pre-analytic issues, such as sequencing DNA from formalin-fixed, paraffin-embedded tissue, and optimizing the bioinformatic workflow for accurate variant calling and filtering. This study reports the clinical validation of a custom capture-based NGS panel to test for molecular markers in a range of lymphoproliferative diseases and histiocytic neoplasms. The fully validated clinical assay represents an accurate and sensitive tool for detection of single-nucleotide variants and small insertion/deletion events to facilitate the characterization and management of patients with hematologic cancers specifically of lymphoid origin.
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Affiliation(s)
- Cody J Artymiuk
- Molecular Hematopathology Laboratory, Mayo Clinic, Rochester, Minnesota.
| | - Shubham Basu
- Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota
| | - Tejaswi Koganti
- Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota
| | | | | | - Michelle A Dina
- Molecular Hematopathology Laboratory, Mayo Clinic, Rochester, Minnesota
| | | | - Xianglin Wu
- Clinical Genome Sequencing Laboratory, Mayo Clinic, Rochester, Minnesota
| | - Taylor Ashworth
- Clinical Genome Sequencing Laboratory, Mayo Clinic, Rochester, Minnesota
| | - Rong He
- Hematopathology Division, Mayo Clinic, Rochester, Minnesota
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23
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Kaur P, Shankar E, Gupta S. EZH2-mediated development of therapeutic resistance in cancer. Cancer Lett 2024; 586:216706. [PMID: 38331087 DOI: 10.1016/j.canlet.2024.216706] [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: 10/23/2023] [Revised: 01/29/2024] [Accepted: 02/03/2024] [Indexed: 02/10/2024]
Abstract
Enhancer of zeste homolog 2 (EZH2) regulates gene expression and plays a definite role in cell proliferation, apoptosis, and senescence. Overexpression of EZH2 has been found in various human malignancies, including prostate, breast, and ovarian cancers, and is associated with increased metastasis and poor prognosis. EZH2 catalyzes trimethylation of lysine 27 of histone H3 (H3K27me3) as a canonical role in a PRC2-dependent manner. This mechanism silences various tumor suppressor genes through EZH2-mediated histone lysine methyltransferase activity. As a non-canonical role, EZH2 partners with other signaling molecules to undergo post-translational modification to orchestrate its function as a co-activator playing a critical role in cancer progression. Dysregulation of EZH2 has also been associated with therapeutic resistance in cancer cells. Given the role of EZH2 in promoting carcinogenesis and therapy resistance, both canonical and non-canonical EZH2 inhibitors have been used to combat multiple cancer types. Moreover, combining EZH2 inhibitors with other therapeutic modalities have shown to enhance the therapeutic efficacy and overcome potential resistance mechanisms in these cancerous cells. Therefore, targeting EZH2 through canonical and non-canonical modes appears to be a promising therapeutic strategy to enhance efficacy and overcome resistance in multiple cancers.
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Affiliation(s)
- Parminder Kaur
- Department of Urology, Case Western Reserve University, Cleveland, OH, 44016, USA; The Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, 44016, USA.
| | - Eswar Shankar
- Department of Urology, Case Western Reserve University, Cleveland, OH, 44016, USA; Department of Internal Medicine, Division of Medical Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA.
| | - Sanjay Gupta
- Department of Urology, Case Western Reserve University, Cleveland, OH, 44016, USA; The Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, 44016, USA; Department of Pharmacology, Case Western Reserve University, Cleveland, OH, 44016, USA; Department of Pathology, Case Western Reserve University, Cleveland, OH, 44016, USA; Department of Nutrition, Case Western Reserve University, Cleveland, OH, 44016, USA; Division of General Medical Sciences, Case Comprehensive Cancer Center, Cleveland, OH, 44106, USA.
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24
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Shi L, Zhang Q, Zhu S, Tang Q, Chen X, Lan R, Wang N, Zhu Y. Pharmacological inhibition of EZH2 using a covalent inhibitor suppresses human ovarian cancer cell migration and invasion. Mol Cell Biochem 2024; 479:831-841. [PMID: 37199893 DOI: 10.1007/s11010-023-04767-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 05/09/2023] [Indexed: 05/19/2023]
Abstract
Metastasis is the cause of poor prognosis in ovarian cancer (OC). Enhancer of Zeste homolog 2 (EZH2), a histone-lysine N-methyltransferase enzyme, promotes OC cell migration and invasion by regulating the expression of tissue inhibitor of metalloproteinase-2 (TIMP2) and matrix metalloproteinases-9 (MMP9). Hence, we speculated that EZH2-targeting therapy might suppress OC migration and invasion. In this study, the expression of EZH2, TIMP2, and MMP9 in OC tissues and cell lines was analyzed using The Cancer Genome Atlas (TCGA) database and western blotting, respectively. The effects of SKLB-03220, an EZH2 covalent inhibitor, on OC cell migration and invasion were investigated using wound-healing assays, Transwell assays, and immunohistochemistry. TCGA database analysis confirmed that the EZH2 and MMP9 mRNA expression was significantly higher in OC tissues, whereas TIMP2 expression was significantly lower than that in normal ovarian tissues. Moreover, EZH2 negatively correlated with TIMP2 and positively correlated with MMP9 expression. In addition to the anti-tumor activity of SKLB-03220 in a PA-1 xenograft model, immunohistochemistry results showed that SKLB-03220 markedly increased the expression of TIMP2 and decreased the expression of MMP9. Additionally, wound-healing and Transwell assays showed that SKLB-03220 significantly inhibited the migration and invasion of both A2780 and PA-1 cells in a concentration-dependent manner. SKLB-03220 inhibited H3K27me3 and MMP9 expression and increased TIMP2 expression in PA-1 cells. Taken together, these results indicate that the EZH2 covalent inhibitor SKLB-03220 inhibits metastasis of OC cells by upregulating TIMP2 and downregulating MMP9, and could thus serve as a therapeutic agent for OC.
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Affiliation(s)
- Lihong Shi
- Department of Pharmacy, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, No. 55, Section 4, South Renmin Road, Chengdu, 610041, China
| | - Qiangsheng Zhang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Shirui Zhu
- Department of Encephalopathy, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Qing Tang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Xin Chen
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Rui Lan
- Department of Encephalopathy, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Ningyu Wang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Yongxia Zhu
- Department of Pharmacy, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, No. 55, Section 4, South Renmin Road, Chengdu, 610041, China.
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25
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Gao Y, Vakoc CR. Therapeutic index of targeting select chromatin complexes in human cancer patients. Curr Opin Genet Dev 2024; 85:102162. [PMID: 38401489 PMCID: PMC11072572 DOI: 10.1016/j.gde.2024.102162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 01/21/2024] [Accepted: 01/29/2024] [Indexed: 02/26/2024]
Abstract
Aberrant chromatin regulation can promote the initiation and progression of human cancer. An improved understanding of such mechanisms has resulted in the identification of cancers with an enhanced dependency on specific chromatin regulatory proteins relative to nonmalignant cell types. Hence, targeting of such complexes with small molecules has significant therapeutic potential in oncology. In recent years, several drugs have been developed and evaluated in human cancer patients, which can influence tumor biology by reprogramming of chromatin structure. In this review, we summarize several of the known mechanisms that endow cancer cells with a powerful dependency on chromatin regulation that exceeds the requirements for normal tissue homeostasis. We also summarize the remarkable small-molecule inhibitors that exploit chromatin regulator dependencies with a clear therapeutic benefit in human cancer patients.
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Affiliation(s)
- Yuan Gao
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA. https://twitter.com/@yuangao_yg
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26
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Chomiak AA, Tiedemann RL, Liu Y, Kong X, Cui Y, Wiseman AK, Thurlow KE, Cornett EM, Topper MJ, Baylin SB, Rothbart SB. Select EZH2 inhibitors enhance viral mimicry effects of DNMT inhibition through a mechanism involving NFAT:AP-1 signaling. SCIENCE ADVANCES 2024; 10:eadk4423. [PMID: 38536911 PMCID: PMC10971413 DOI: 10.1126/sciadv.adk4423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 02/21/2024] [Indexed: 04/05/2024]
Abstract
DNA methyltransferase inhibitor (DNMTi) efficacy in solid tumors is limited. Colon cancer cells exposed to DNMTi accumulate lysine-27 trimethylation on histone H3 (H3K27me3). We propose this Enhancer of Zeste Homolog 2 (EZH2)-dependent repressive modification limits DNMTi efficacy. Here, we show that low-dose DNMTi treatment sensitizes colon cancer cells to select EZH2 inhibitors (EZH2is). Integrative epigenomic analysis reveals that DNMTi-induced H3K27me3 accumulates at genomic regions poised with EZH2. Notably, combined EZH2i and DNMTi alters the epigenomic landscape to transcriptionally up-regulate the calcium-induced nuclear factor of activated T cells (NFAT):activating protein 1 (AP-1) signaling pathway. Blocking this pathway limits transcriptional activating effects of these drugs, including transposable element and innate immune response gene expression involved in viral defense. Analysis of primary human colon cancer specimens reveals positive correlations between DNMTi-, innate immune response-, and calcium signaling-associated transcription profiles. Collectively, we show that compensatory EZH2 activity limits DNMTi efficacy in colon cancer and link NFAT:AP-1 signaling to epigenetic therapy-induced viral mimicry.
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Affiliation(s)
- Alison A. Chomiak
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
| | | | - Yanqing Liu
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Xiangqian Kong
- Department of Oncology, the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Ying Cui
- Department of Oncology, the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Ashley K. Wiseman
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Kate E. Thurlow
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Evan M. Cornett
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indiana University, Indianapolis, IN 46202, USA
| | - Michael J. Topper
- Department of Oncology, the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Stephen B. Baylin
- Department of Oncology, the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Scott B. Rothbart
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
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27
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Krull JE, Wenzl K, Hopper MA, Manske MK, Sarangi V, Maurer MJ, Larson MC, Mondello P, Yang Z, Novak JP, Serres M, Whitaker KR, Villasboas Bisneto JC, Habermann TM, Witzig TE, Link BK, Rimsza LM, King RL, Ansell SM, Cerhan JR, Novak AJ. Follicular lymphoma B cells exhibit heterogeneous transcriptional states with associated somatic alterations and tumor microenvironments. Cell Rep Med 2024; 5:101443. [PMID: 38428430 PMCID: PMC10983045 DOI: 10.1016/j.xcrm.2024.101443] [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: 09/16/2022] [Revised: 08/14/2023] [Accepted: 02/05/2024] [Indexed: 03/03/2024]
Abstract
Follicular lymphoma (FL) is an indolent non-Hodgkin lymphoma of germinal center origin, which presents with significant biologic and clinical heterogeneity. Using RNA-seq on B cells sorted from 87 FL biopsies, combined with machine-learning approaches, we identify 3 transcriptional states that divide the biological ontology of FL B cells into inflamed, proliferative, and chromatin-modifying states, with relationship to prior GC B cell phenotypes. When integrated with whole-exome sequencing and immune profiling, we find that each state was associated with a combination of mutations in chromatin modifiers, copy-number alterations to TNFAIP3, and T follicular helper cells (Tfh) cell interactions, or primarily by a microenvironment rich in activated T cells. Altogether, these data define FL B cell transcriptional states across a large cohort of patients, contribute to our understanding of FL heterogeneity at the tumor cell level, and provide a foundation for guiding therapeutic intervention.
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Affiliation(s)
| | - Kerstin Wenzl
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | | | | | | | - Matthew J Maurer
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Melissa C Larson
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | | | - ZhiZhang Yang
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | | | | | | | | | | | | | - Brian K Link
- Division of Hematology, Oncology, and Blood & Marrow Transplantation, University of Iowa, Iowa City, IA, USA
| | - Lisa M Rimsza
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Scottsdale, AZ, USA
| | - Rebecca L King
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | | | - James R Cerhan
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Anne J Novak
- Division of Hematology, Mayo Clinic, Rochester, MN, USA.
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28
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Liu D, Li Z, Tan D, An Y, Chu L, Chen T, Li W, Zhou A, Xiang R, Zhang L, Qu Y, Qi W. BMP-ACVR1 Axis is Critical for Efficacy of PRC2 Inhibitors in B-Cell Lymphoma. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306499. [PMID: 38229201 DOI: 10.1002/advs.202306499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/28/2023] [Indexed: 01/18/2024]
Abstract
EZH2 is the catalytic subunit of the histone methyltransferase Polycomb Repressive Complex 2 (PRC2), and its somatic activating mutations drive lymphoma, particularly the germinal center B-cell type. Although PRC2 inhibitors, such as tazemetostat, have demonstrated anti-lymphoma activity in patients, the clinical efficacy is not limited to EZH2-mutant lymphoma. In this study, Activin A Receptor Type 1 (ACVR1), a type I Bone Morphogenetic Protein (BMP) receptor, is identified as critical for the anti-lymphoma efficacy of PRC2 inhibitors through a whole-genome CRISPR screen. BMP6, BMP7, and ACVR1 are repressed by PRC2-mediated H3K27me3, and PRC2 inhibition upregulates their expression and signaling in cell and patient-derived xenograft models. Through BMP-ACVR1 signaling, PRC2 inhibitors robustly induced cell cycle arrest and B cell lineage differentiation in vivo. Remarkably, blocking ACVR1 signaling using an inhibitor or genetic depletion significantly compromised the in vitro and in vivo efficacy of PRC2 inhibitors. Furthermore, high levels of BMP6 and BMP7, along with ACVR1, are associated with longer survival in lymphoma patients, underscoring the clinical relevance of this study. Altogether, BMP-ACVR1 exhibits anti-lymphoma function and represents a critical PRC2-repressed pathway contributing to the efficacy of PRC2 inhibitors.
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Affiliation(s)
- Dongdong Liu
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, China
| | - Zhen Li
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, China
| | - Dongxia Tan
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, China
| | - Yang An
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, China
| | - Liping Chu
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, China
| | - Tiancheng Chen
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, China
| | - Weijia Li
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, China
| | - Ailin Zhou
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, China
| | - Ruijie Xiang
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, China
| | - Liye Zhang
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, China
| | - Yuxiu Qu
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, China
| | - Wei Qi
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, China
- Shanghai Clinical Research and Trial Center, Shanghai, 201210, China
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29
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Iorgulescu JB, Medeiros LJ, Patel KP. Predictive and prognostic molecular biomarkers in lymphomas. Pathology 2024; 56:239-258. [PMID: 38216400 DOI: 10.1016/j.pathol.2023.12.001] [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: 12/03/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 01/14/2024]
Abstract
Recent advances in molecular diagnostics have markedly expanded our understanding of the genetic underpinnings of lymphomas and catalysed a transformation in not just how we classify lymphomas, but also how we treat, target, and monitor affected patients. Reflecting these advances, the World Health Organization Classification, International Consensus Classification, and National Comprehensive Cancer Network guidelines were recently updated to better integrate these molecular insights into clinical practice. We summarise here the molecular biomarkers of lymphomas with an emphasis on biomarkers that have well-supported prognostic and predictive utility, as well as emerging biomarkers that show promise for clinical practice. These biomarkers include: (1) diagnostic entity-defining genetic abnormalities [e.g., B-cell acute lymphoblastic leukaemia (B-ALL) with KMT2A rearrangement]; (2) molecular alterations that guide patients' prognoses (e.g., TP53 loss frequently conferring worse prognosis); (3) mutations that serve as the targets of, and often a source of acquired resistance to, small molecular inhibitors (e.g., ABL1 tyrosine kinase inhibitors for B-ALL BCR::ABL1, hindered by ABL1 kinase domain resistance mutations); (4) the growing incorporation of molecular measurable residual disease (MRD) in the management of lymphoma patients (e.g., molecular complete response and sequencing MRD-negative criteria in multiple myeloma). Altogether, our review spans the spectrum of lymphoma types, from the genetically defined subclasses of precursor B-cell lymphomas to the highly heterogeneous categories of small and large cell mature B-cell lymphomas, Hodgkin lymphomas, plasma cell neoplasms, and T/NK-cell lymphomas, and provides an expansive summary of our current understanding of their molecular pathology.
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Affiliation(s)
- J Bryan Iorgulescu
- Molecular Diagnostics Laboratory, Department of Hematopathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - L Jeffrey Medeiros
- Molecular Diagnostics Laboratory, Department of Hematopathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Keyur P Patel
- Molecular Diagnostics Laboratory, Department of Hematopathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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30
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Yamagishi M, Kuze Y, Kobayashi S, Nakashima M, Morishima S, Kawamata T, Makiyama J, Suzuki K, Seki M, Abe K, Imamura K, Watanabe E, Tsuchiya K, Yasumatsu I, Takayama G, Hizukuri Y, Ito K, Taira Y, Nannya Y, Tojo A, Watanabe T, Tsutsumi S, Suzuki Y, Uchimaru K. Mechanisms of action and resistance in histone methylation-targeted therapy. Nature 2024; 627:221-228. [PMID: 38383791 PMCID: PMC10917674 DOI: 10.1038/s41586-024-07103-x] [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: 07/06/2022] [Accepted: 01/23/2024] [Indexed: 02/23/2024]
Abstract
Epigenomes enable the rectification of disordered cancer gene expression, thereby providing new targets for pharmacological interventions. The clinical utility of targeting histone H3 lysine trimethylation (H3K27me3) as an epigenetic hallmark has been demonstrated1-7. However, in actual therapeutic settings, the mechanism by which H3K27me3-targeting therapies exert their effects and the response of tumour cells remain unclear. Here we show the potency and mechanisms of action and resistance of the EZH1-EZH2 dual inhibitor valemetostat in clinical trials of patients with adult T cell leukaemia/lymphoma. Administration of valemetostat reduced tumour size and demonstrated durable clinical response in aggressive lymphomas with multiple genetic mutations. Integrative single-cell analyses showed that valemetostat abolishes the highly condensed chromatin structure formed by the plastic H3K27me3 and neutralizes multiple gene loci, including tumour suppressor genes. Nevertheless, subsequent long-term treatment encounters the emergence of resistant clones with reconstructed aggregate chromatin that closely resemble the pre-dose state. Acquired mutations at the PRC2-compound interface result in the propagation of clones with increased H3K27me3 expression. In patients free of PRC2 mutations, TET2 mutation or elevated DNMT3A expression causes similar chromatin recondensation through de novo DNA methylation in the H3K27me3-associated regions. We identified subpopulations with distinct metabolic and gene translation characteristics implicated in primary susceptibility until the acquisition of the heritable (epi)mutations. Targeting epigenetic drivers and chromatin homeostasis may provide opportunities for further sustained epigenetic cancer therapies.
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Affiliation(s)
- Makoto Yamagishi
- Laboratory of Viral Oncology and Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan.
- Laboratory of Tumor Cell Biology, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan.
| | - Yuta Kuze
- Laboratory of Systems Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Seiichiro Kobayashi
- Division of Hematopoietic Disease Control, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Department of Hematology, Kanto Rosai Hospital, Kanagawa, Japan
| | - Makoto Nakashima
- Laboratory of Tumor Cell Biology, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Satoko Morishima
- Division of Endocrinology, Diabetes and Metabolism, Hematology and Rheumatology, Second Department of Internal Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Toyotaka Kawamata
- Department of Hematology/Oncology, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Junya Makiyama
- Department of Hematology/Oncology, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Department of Hematology, Sasebo City General Hospital, Nagasaki, Japan
| | - Kako Suzuki
- Laboratory of Viral Oncology and Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
- Laboratory of Tumor Cell Biology, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Masahide Seki
- Laboratory of Systems Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Kazumi Abe
- Laboratory of Systems Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Kiyomi Imamura
- Laboratory of Systems Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Eri Watanabe
- IMSUT Clinical Flow Cytometry Laboratory, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Kazumi Tsuchiya
- IMSUT Clinical Flow Cytometry Laboratory, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Isao Yasumatsu
- Organic and Biomolecular Chemistry Department, Daiichi Sankyo RD Novare, Tokyo, Japan
| | | | | | - Kazumi Ito
- Translational Science I, Daiichi Sankyo, Tokyo, Japan
| | - Yukihiro Taira
- Laboratory of Viral Oncology and Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Yasuhito Nannya
- Division of Hematopoietic Disease Control, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Department of Hematology/Oncology, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Arinobu Tojo
- Tokyo Medical and Dental University, Tokyo, Japan
| | - Toshiki Watanabe
- Department of Practical Management of Medical Information, Graduate School of Medicine, St Marianna University, Kanagawa, Japan
| | | | - Yutaka Suzuki
- Laboratory of Systems Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan.
| | - Kaoru Uchimaru
- Laboratory of Tumor Cell Biology, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan.
- Department of Hematology/Oncology, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
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31
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Zhang Q, Shi Y, Liu S, Yang W, Chen H, Guo N, Sun W, Zhao Y, Ren Y, Ren Y, Jia L, Yang J, Yun Y, Chen G, Wang L, Wu C. EZH2/G9a interact to mediate drug resistance in non-small-cell lung cancer by regulating the SMAD4/ERK/c-Myc signaling axis. Cell Rep 2024; 43:113714. [PMID: 38306271 DOI: 10.1016/j.celrep.2024.113714] [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: 03/23/2023] [Revised: 11/18/2023] [Accepted: 01/12/2024] [Indexed: 02/04/2024] Open
Abstract
Drug resistance is the leading problem in non-small-cell lung cancer (NSCLC) therapy. The contribution of histone methylation in mediating malignant phenotypes of NSCLC is well known. However, the role of histone methylation in NSCLC drug-resistance mechanisms remains unclear. Here, our data show that EZH2 and G9a, two histone methyltransferases, are involved in the drug resistance of NSCLC. Gene manipulation results indicate that the combination of EZH2 and G9a promotes tumor growth and mediates drug resistance in a complementary manner. Importantly, clinical study demonstrates that co-expression of both enzymes predicts a poor outcome in patients with NSCLC. Mechanistically, G9a and EZH2 interact and promote the silencing of the tumor-suppressor gene SMAD4, activating the ERK/c-Myc signaling pathway. Finally, SU08, a compound targeting both EZH2 and G9a, is demonstrated to sensitize resistant cells to therapeutic drugs by regulating the SMAD4/ERK/c-Myc signaling axis. These findings uncover the resistance mechanism and a strategy for reversing NSCLC drug resistance.
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Affiliation(s)
- Qiuyue Zhang
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yajie Shi
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Sen Liu
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Weiming Yang
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Huiping Chen
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Ning Guo
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Wanyu Sun
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yongshan Zhao
- Department of Biochemistry and Molecular Biology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yuxiang Ren
- Department of Biochemistry and Molecular Biology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yong Ren
- Department of Pathology, General Hospital of Central Theater Command of People's Liberation Army, Wuhan 430070, China
| | - Lina Jia
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jingyu Yang
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yi Yun
- Biobank Center, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Guoliang Chen
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Lihui Wang
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Chunfu Wu
- Department of Pharmacology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China.
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32
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Fang M, Deibler SK, Krishnamurthy PM, Wang F, Rodriguez P, Banday S, Virbasius CM, Sena-Esteves M, Watts JK, Green MR. EZH2 inhibition reactivates epigenetically silenced FMR1 and normalizes molecular and electrophysiological abnormalities in fragile X syndrome neurons. Front Neurosci 2024; 18:1348478. [PMID: 38449737 PMCID: PMC10915284 DOI: 10.3389/fnins.2024.1348478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 02/09/2024] [Indexed: 03/08/2024] Open
Abstract
Fragile X Syndrome (FXS) is a neurological disorder caused by epigenetic silencing of the FMR1 gene. Reactivation of FMR1 is a potential therapeutic approach for FXS that would correct the root cause of the disease. Here, using a candidate-based shRNA screen, we identify nine epigenetic repressors that promote silencing of FMR1 in FXS cells (called FMR1 Silencing Factors, or FMR1- SFs). Inhibition of FMR1-SFs with shRNAs or small molecules reactivates FMR1 in cultured undifferentiated induced pluripotent stem cells, neural progenitor cells (NPCs) and post-mitotic neurons derived from FXS patients. One of the FMR1-SFs is the histone methyltransferase EZH2, for which an FDA-approved small molecule inhibitor, EPZ6438 (also known as tazemetostat), is available. We show that EPZ6438 substantially corrects the characteristic molecular and electrophysiological abnormalities of cultured FXS neurons. Unfortunately, EZH2 inhibitors do not efficiently cross the blood-brain barrier, limiting their therapeutic use for FXS. Recently, antisense oligonucleotide (ASO)-based approaches have been developed as effective treatment options for certain central nervous system disorders. We therefore derived efficacious ASOs targeting EZH2 and demonstrate that they reactivate FMR1 expression and correct molecular and electrophysiological abnormalities in cultured FXS neurons, and reactivate FMR1 expression in human FXS NPCs engrafted within the brains of mice. Collectively, our results establish EZH2 inhibition in general, and EZH2 ASOs in particular, as a therapeutic approach for FXS.
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Affiliation(s)
- Minggang Fang
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Sara K. Deibler
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, United States
| | | | - Feng Wang
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Paola Rodriguez
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Shahid Banday
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Ching-Man Virbasius
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Miguel Sena-Esteves
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Jonathan K. Watts
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Michael R. Green
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, United States
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33
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Liu J, Xing L, Li J, Wen K, Liu N, Liu Y, Wu G, Wang S, Ogiya D, Song TY, Kurata K, Penailillo J, Morelli E, Wang T, Hong X, Gulla A, Tai YT, Munshi N, Richardson P, Carrasco R, Hideshima T, Anderson KC. Epigenetic regulation of CD38/CD48 by KDM6A mediates NK cell response in multiple myeloma. Nat Commun 2024; 15:1367. [PMID: 38355622 PMCID: PMC10866908 DOI: 10.1038/s41467-024-45561-z] [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: 07/17/2023] [Accepted: 01/29/2024] [Indexed: 02/16/2024] Open
Abstract
Anti-CD38 monoclonal antibodies like Daratumumab (Dara) are effective in multiple myeloma (MM); however, drug resistance ultimately occurs and the mechanisms behind this are poorly understood. Here, we identify, via two in vitro genome-wide CRISPR screens probing Daratumumab resistance, KDM6A as an important regulator of sensitivity to Daratumumab-mediated antibody-dependent cellular cytotoxicity (ADCC). Loss of KDM6A leads to increased levels of H3K27me3 on the promoter of CD38, resulting in a marked downregulation in CD38 expression, which may cause resistance to Daratumumab-mediated ADCC. Re-introducing CD38 does not reverse Daratumumab-mediated ADCC fully, which suggests that additional KDM6A targets, including CD48 which is also downregulated upon KDM6A loss, contribute to Daratumumab-mediated ADCC. Inhibition of H3K27me3 with an EZH2 inhibitor resulted in CD38 and CD48 upregulation and restored sensitivity to Daratumumab. These findings suggest KDM6A loss as a mechanism of Daratumumab resistance and lay down the proof of principle for the therapeutic application of EZH2 inhibitors, one of which is already FDA-approved, in improving MM responsiveness to Daratumumab.
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Affiliation(s)
- Jiye Liu
- Jerome Lipper Multiple Myeloma Center, Lebow Institute for Myeloma Therapeutics, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Lijie Xing
- Department of Hematology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - Jiang Li
- Clinical Big Data Research Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, 518107, China
| | - Kenneth Wen
- Jerome Lipper Multiple Myeloma Center, Lebow Institute for Myeloma Therapeutics, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Ning Liu
- Jerome Lipper Multiple Myeloma Center, Lebow Institute for Myeloma Therapeutics, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
- Department of Marine Bio-Pharmacology, College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Yuntong Liu
- Jerome Lipper Multiple Myeloma Center, Lebow Institute for Myeloma Therapeutics, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Gongwei Wu
- Center for Functional Cancer Epigenetics, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Su Wang
- Vertex pharmaceuticals, Boston, MA, 02210, USA
| | - Daisuke Ogiya
- Department of Hematology and Oncology, School of Medicine, Tokai University, Isehara, 259-1193, Japan
| | - Tian-Yu Song
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, 02142, USA
| | - Keiji Kurata
- Jerome Lipper Multiple Myeloma Center, Lebow Institute for Myeloma Therapeutics, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Johany Penailillo
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Eugenio Morelli
- Jerome Lipper Multiple Myeloma Center, Lebow Institute for Myeloma Therapeutics, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Tingjian Wang
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Xiaoning Hong
- Clinical Big Data Research Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, 518107, China
| | - Annamaria Gulla
- Jerome Lipper Multiple Myeloma Center, Lebow Institute for Myeloma Therapeutics, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo (TO), 10060, Italy
| | - Yu-Tzu Tai
- Jerome Lipper Multiple Myeloma Center, Lebow Institute for Myeloma Therapeutics, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Nikhil Munshi
- Jerome Lipper Multiple Myeloma Center, Lebow Institute for Myeloma Therapeutics, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Paul Richardson
- Jerome Lipper Multiple Myeloma Center, Lebow Institute for Myeloma Therapeutics, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Ruben Carrasco
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02215, USA
| | - Teru Hideshima
- Jerome Lipper Multiple Myeloma Center, Lebow Institute for Myeloma Therapeutics, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Kenneth C Anderson
- Jerome Lipper Multiple Myeloma Center, Lebow Institute for Myeloma Therapeutics, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA.
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Li X, Zhang Y, Wang C, Wang L, Ye Y, Xue R, Shi Y, Su Q, Zhu Y, Wang L. Drug-Loaded Biomimetic Carriers for Non-Hodgkin's Lymphoma Therapy: Advances and Perspective. ACS Biomater Sci Eng 2024; 10:723-742. [PMID: 38296812 DOI: 10.1021/acsbiomaterials.3c01480] [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] [Indexed: 02/02/2024]
Abstract
Chemotherapy remains the mainstay of treatment for the lymphoma patient population, despite its relatively poor therapeutic results, high toxicity, and low specificity. With the advancement of biotechnology, the significance of drug-loading biomimetic materials in the medical field has become increasingly evident, attracting extensive attention from the scientific community and the pharmaceutical industry. Given that they can cater to the particular requirements of lymphoma patients, drug-loading biomimetic materials have recently become a potent and promising delivery approach for various applications. This review mainly reviews the recent advancements in the treatment of tumors with biological drug carrier-loaded drugs, outlines the mechanisms of lymphoma development and the diverse treatment modalities currently available, and discusses the merits and limitations of biological drug carriers. What is more, the practical application of biocarriers in tumors is explored by providing examples, and the possibility of loading such organisms with antilymphoma drugs for the treatment of lymphoma is conceived.
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Affiliation(s)
- Xiaoqi Li
- School of Clinical Medicine, Shandong Second Medical University, Weifang 261000, Shandong China
- Central Laboratory, Linyi People's Hospital, Linyi 276000, Shandong China
- Linyi Key Laboratory of Nanomedicine, Linyi 276000, Shandong China
| | - Yu Zhang
- Central Laboratory, Linyi People's Hospital, Linyi 276000, Shandong China
- Guangzhou University of Chinese Medicine, Guangzhou 510000, Guangdong China
| | - Chao Wang
- Department of Hematology, Linyi People's Hospital, Linyi 276000, Shandong China
| | - Liyuan Wang
- School of Clinical Medicine, Shandong Second Medical University, Weifang 261000, Shandong China
- Central Laboratory, Linyi People's Hospital, Linyi 276000, Shandong China
- Linyi Key Laboratory of Nanomedicine, Linyi 276000, Shandong China
| | - Yufu Ye
- Department of Hepatobiliary and Pancreatic Surgery, the First Affliliated Hospital, Zhejiang University School of Medicine, Hangzhou310000, Zhejiang China
- Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, First Affiliated Hospital, School of Medicine, Hangzhou310000, Zhejiang China
| | - Renyu Xue
- Central Laboratory, Linyi People's Hospital, Linyi 276000, Shandong China
| | - Yuanwei Shi
- School of Clinical Medicine, Shandong Second Medical University, Weifang 261000, Shandong China
- Central Laboratory, Linyi People's Hospital, Linyi 276000, Shandong China
| | - Quanping Su
- Central Laboratory, Linyi People's Hospital, Linyi 276000, Shandong China
| | - Yanxi Zhu
- Central Laboratory, Linyi People's Hospital, Linyi 276000, Shandong China
- Linyi Key Laboratory of Nanomedicine, Linyi 276000, Shandong China
- Key Laboratory for Translational Oncology, Xuzhou Medical University, Xuzhou 221000, Jiangsu China
| | - Lijuan Wang
- Central Laboratory, Linyi People's Hospital, Linyi 276000, Shandong China
- Linyi Key Laboratory of Tumor Biology, Linyi 276000, Shandong China
- Linyi Key Laboratory of Nanomedicine, Linyi 276000, Shandong China
- Key Laboratory for Translational Oncology, Xuzhou Medical University, Xuzhou 221000, Jiangsu China
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35
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Hein KZ, Stephen B, Fu S. Therapeutic Role of Synthetic Lethality in ARID1A-Deficient Malignancies. JOURNAL OF IMMUNOTHERAPY AND PRECISION ONCOLOGY 2024; 7:41-52. [PMID: 38327752 PMCID: PMC10846636 DOI: 10.36401/jipo-22-37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 04/28/2023] [Accepted: 09/21/2023] [Indexed: 02/09/2024]
Abstract
AT-rich interaction domain 1A (ARID1A), a mammalian switch/sucrose nonfermenting complex subunit, modulates several cellular processes by regulating chromatin accessibility. It is encoded by ARID1A, an immunosuppressive gene frequently disrupted in a many tumors, affecting the proliferation, migration, and invasion of cancer cells. Targeting molecular pathways and epigenetic regulation associated with ARID1A loss, such as inhibiting the PI3K/AKT pathway or modulating Wnt/β-catenin signaling, may help suppress tumor growth and progression. Developing epigenetic drugs like histone deacetylase or DNA methyltransferase inhibitors could restore normal chromatin structure and function in cells with ARID1A loss. As ARID1A deficiency correlates with enhanced tumor mutability, microsatellite instability, high tumor mutation burden, increased programmed death-ligand 1 expression, and T-lymphocyte infiltration, ARID1A-deficient cells can be a potential therapeutic target for immune checkpoint inhibitors that warrants further exploration. In this review, we discuss the role of ARID1A in carcinogenesis, its crosstalk with other signaling pathways, and strategies to make ARID1A-deficient cells a potential therapeutic target for patients with cancer.
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Affiliation(s)
- Kyaw Z. Hein
- Department of Internal Medicine, HCA Florida Westside Hospital, Plantation, FL, USA
| | - Bettzy Stephen
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Siqing Fu
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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36
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Gu M, Ren B, Fang Y, Ren J, Liu X, Wang X, Zhou F, Xiao R, Luo X, You L, Zhao Y. Epigenetic regulation in cancer. MedComm (Beijing) 2024; 5:e495. [PMID: 38374872 PMCID: PMC10876210 DOI: 10.1002/mco2.495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 01/26/2024] [Accepted: 01/30/2024] [Indexed: 02/21/2024] Open
Abstract
Epigenetic modifications are defined as heritable changes in gene activity that do not involve changes in the underlying DNA sequence. The oncogenic process is driven by the accumulation of alterations that impact genome's structure and function. Genetic mutations, which directly disrupt the DNA sequence, are complemented by epigenetic modifications that modulate gene expression, thereby facilitating the acquisition of malignant characteristics. Principals among these epigenetic changes are shifts in DNA methylation and histone mark patterns, which promote tumor development and metastasis. Notably, the reversible nature of epigenetic alterations, as opposed to the permanence of genetic changes, positions the epigenetic machinery as a prime target in the discovery of novel therapeutics. Our review delves into the complexities of epigenetic regulation, exploring its profound effects on tumor initiation, metastatic behavior, metabolic pathways, and the tumor microenvironment. We place a particular emphasis on the dysregulation at each level of epigenetic modulation, including but not limited to, the aberrations in enzymes responsible for DNA methylation and histone modification, subunit loss or fusions in chromatin remodeling complexes, and the disturbances in higher-order chromatin structure. Finally, we also evaluate therapeutic approaches that leverage the growing understanding of chromatin dysregulation, offering new avenues for cancer treatment.
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Affiliation(s)
- Minzhi Gu
- Department of General SurgeryPeking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingP. R. China
- Key Laboratory of Research in Pancreatic TumorChinese Academy of Medical SciencesBeijingP. R. China
- National Science and Technology Key Infrastructure on Translational Medicine in Peking Union Medical College HospitalBeijingP. R. China
| | - Bo Ren
- Department of General SurgeryPeking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingP. R. China
- Key Laboratory of Research in Pancreatic TumorChinese Academy of Medical SciencesBeijingP. R. China
- National Science and Technology Key Infrastructure on Translational Medicine in Peking Union Medical College HospitalBeijingP. R. China
| | - Yuan Fang
- Department of General SurgeryPeking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingP. R. China
- Key Laboratory of Research in Pancreatic TumorChinese Academy of Medical SciencesBeijingP. R. China
- National Science and Technology Key Infrastructure on Translational Medicine in Peking Union Medical College HospitalBeijingP. R. China
| | - Jie Ren
- Department of General SurgeryPeking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingP. R. China
- Key Laboratory of Research in Pancreatic TumorChinese Academy of Medical SciencesBeijingP. R. China
- National Science and Technology Key Infrastructure on Translational Medicine in Peking Union Medical College HospitalBeijingP. R. China
| | - Xiaohong Liu
- Department of General SurgeryPeking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingP. R. China
- Key Laboratory of Research in Pancreatic TumorChinese Academy of Medical SciencesBeijingP. R. China
- National Science and Technology Key Infrastructure on Translational Medicine in Peking Union Medical College HospitalBeijingP. R. China
| | - Xing Wang
- Department of General SurgeryPeking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingP. R. China
- Key Laboratory of Research in Pancreatic TumorChinese Academy of Medical SciencesBeijingP. R. China
- National Science and Technology Key Infrastructure on Translational Medicine in Peking Union Medical College HospitalBeijingP. R. China
| | - Feihan Zhou
- Department of General SurgeryPeking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingP. R. China
- Key Laboratory of Research in Pancreatic TumorChinese Academy of Medical SciencesBeijingP. R. China
- National Science and Technology Key Infrastructure on Translational Medicine in Peking Union Medical College HospitalBeijingP. R. China
| | - Ruiling Xiao
- Department of General SurgeryPeking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingP. R. China
- Key Laboratory of Research in Pancreatic TumorChinese Academy of Medical SciencesBeijingP. R. China
- National Science and Technology Key Infrastructure on Translational Medicine in Peking Union Medical College HospitalBeijingP. R. China
| | - Xiyuan Luo
- Department of General SurgeryPeking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingP. R. China
- Key Laboratory of Research in Pancreatic TumorChinese Academy of Medical SciencesBeijingP. R. China
- National Science and Technology Key Infrastructure on Translational Medicine in Peking Union Medical College HospitalBeijingP. R. China
| | - Lei You
- Department of General SurgeryPeking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingP. R. China
- Key Laboratory of Research in Pancreatic TumorChinese Academy of Medical SciencesBeijingP. R. China
- National Science and Technology Key Infrastructure on Translational Medicine in Peking Union Medical College HospitalBeijingP. R. China
| | - Yupei Zhao
- Department of General SurgeryPeking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingP. R. China
- Key Laboratory of Research in Pancreatic TumorChinese Academy of Medical SciencesBeijingP. R. China
- National Science and Technology Key Infrastructure on Translational Medicine in Peking Union Medical College HospitalBeijingP. R. China
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Peng X, Hu Z, Zeng L, Zhang M, Xu C, Lu B, Tao C, Chen W, Hou W, Cheng K, Bi H, Pan W, Chen J. Overview of epigenetic degraders based on PROTAC, molecular glue, and hydrophobic tagging technologies. Acta Pharm Sin B 2024; 14:533-578. [PMID: 38322348 PMCID: PMC10840439 DOI: 10.1016/j.apsb.2023.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/21/2023] [Accepted: 08/30/2023] [Indexed: 02/08/2024] Open
Abstract
Epigenetic pathways play a critical role in the initiation, progression, and metastasis of cancer. Over the past few decades, significant progress has been made in the development of targeted epigenetic modulators (e.g., inhibitors). However, epigenetic inhibitors have faced multiple challenges, including limited clinical efficacy, toxicities, lack of subtype selectivity, and drug resistance. As a result, the design of new epigenetic modulators (e.g., degraders) such as PROTACs, molecular glue, and hydrophobic tagging (HyT) degraders has garnered significant attention from both academia and pharmaceutical industry, and numerous epigenetic degraders have been discovered in the past decade. In this review, we aim to provide an in-depth illustration of new degrading strategies (2017-2023) targeting epigenetic proteins for cancer therapy, focusing on the rational design, pharmacodynamics, pharmacokinetics, clinical status, and crystal structure information of these degraders. Importantly, we also provide deep insights into the potential challenges and corresponding remedies of this approach to drug design and development. Overall, we hope this review will offer a better mechanistic understanding and serve as a useful guide for the development of emerging epigenetic-targeting degraders.
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Affiliation(s)
- Xiaopeng Peng
- College of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou 314000, China
| | - Zhihao Hu
- College of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou 314000, China
| | - Limei Zeng
- College of Basic Medicine, Gannan Medical University, Ganzhou 314000, China
| | - Meizhu Zhang
- College of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou 314000, China
| | - Congcong Xu
- College of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou 314000, China
| | - Benyan Lu
- College of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou 314000, China
| | - Chengpeng Tao
- College of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou 314000, China
| | - Weiming Chen
- College of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou 314000, China
| | - Wen Hou
- College of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou 314000, China
| | - Kui Cheng
- Guangdong Provincial Key Laboratory of New Drug Screening, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Huichang Bi
- Guangdong Provincial Key Laboratory of New Drug Screening, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Wanyi Pan
- College of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou 314000, China
| | - Jianjun Chen
- Guangdong Provincial Key Laboratory of New Drug Screening, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
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Sung PJ, Selvam M, Riedel SS, Xie HM, Bryant K, Manning B, Wertheim GB, Kulej K, Pham L, Bowman RL, Peresie J, Nemeth MJ, Levine RL, Garcia BA, Meyer SE, Sidoli S, Bernt KM, Carroll M. FLT3 tyrosine kinase inhibition modulates PRC2 and promotes differentiation in acute myeloid leukemia. Leukemia 2024; 38:291-301. [PMID: 38182819 PMCID: PMC11141246 DOI: 10.1038/s41375-023-02131-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 12/13/2023] [Accepted: 12/19/2023] [Indexed: 01/07/2024]
Abstract
Internal tandem duplication mutations in fms-like tyrosine kinase 3 (FLT3-ITD) are recurrent in acute myeloid leukemia (AML) and increase the risk of relapse. Clinical responses to FLT3 inhibitors (FLT3i) include myeloid differentiation of the FLT3-ITD clone in nearly half of patients through an unknown mechanism. We identified enhancer of zeste homolog 2 (EZH2), a component of polycomb repressive complex 2 (PRC2), as a mediator of this effect using a proteomic-based screen. FLT3i downregulated EZH2 protein expression and PRC2 activity on H3K27me3. FLT3-ITD and loss-of-function mutations in EZH2 are mutually exclusive in human AML. We demonstrated that FLT3i increase myeloid maturation with reduced stem/progenitor cell populations in murine Flt3-ITD AML. Combining EZH1/2 inhibitors with FLT3i increased terminal maturation of leukemic cells and reduced leukemic burden. Our data suggest that reduced EZH2 activity following FLT3 inhibition promotes myeloid differentiation of FLT3-ITD leukemic cells, providing a mechanistic explanation for the clinical observations. These results demonstrate that in addition to its known cell survival and proliferation signaling, FLT3-ITD has a second, previously undefined function to maintain a myeloid stem/progenitor cell state through modulation of PRC2 activity. Our findings support exploring EZH1/2 inhibitors as therapy for FLT3-ITD AML.
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Affiliation(s)
- Pamela J Sung
- Department of Medicine - Leukemia, Department of Pharmacology & Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.
- Department of Medicine, Division of Hematology/Oncology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA.
| | - Murugan Selvam
- Department of Medicine - Leukemia, Department of Pharmacology & Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Simone S Riedel
- Department of Pediatrics, Children's Hospital of Philadelphia and Department of Pediatrics, University of Pennsylvania, Perelman School of Medicine and Abramson Cancer Center, Philadelphia, PA, USA
| | - Hongbo M Xie
- Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Katie Bryant
- Department of Medicine - Leukemia, Department of Pharmacology & Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Bryan Manning
- Department of Medicine, Division of Hematology/Oncology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - Gerald B Wertheim
- Department of Pathology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Katarzyna Kulej
- Department of Biochemistry and Biophysics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - Lucie Pham
- Department of Medicine - Leukemia, Department of Pharmacology & Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Robert L Bowman
- Department of Cancer Biology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - Jennifer Peresie
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Michael J Nemeth
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Ross L Levine
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Benjamin A Garcia
- Department of Biochemistry and Biophysics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
- Department of Biochemistry and Molecular Biophysics, Washington University in St. Louis, St. Louis, MO, USA
| | - Sara E Meyer
- Department of Pharmacology, Physiology, and Cancer Biology, Thomas Jefferson University, Sidney Kimmel Cancer Center, Philadelphia, PA, USA
| | - Simone Sidoli
- Department of Biochemistry and Biophysics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
- Department of Biochemistry, Albert Einstein College of Medicine, New York, NY, USA
| | - Kathrin M Bernt
- Department of Pediatrics, Children's Hospital of Philadelphia and Department of Pediatrics, University of Pennsylvania, Perelman School of Medicine and Abramson Cancer Center, Philadelphia, PA, USA
| | - Martin Carroll
- Department of Medicine, Division of Hematology/Oncology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
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Fend F, van den Brand M, Groenen PJ, Quintanilla-Martinez L, Bagg A. Diagnostic and prognostic molecular pathology of lymphoid malignancies. Virchows Arch 2024; 484:195-214. [PMID: 37747559 PMCID: PMC10948535 DOI: 10.1007/s00428-023-03644-0] [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: 08/03/2023] [Revised: 08/28/2023] [Accepted: 09/01/2023] [Indexed: 09/26/2023]
Abstract
With the explosion in knowledge about the molecular landscape of lymphoid malignancies and the increasing availability of high throughput techniques, molecular diagnostics in hematopathology has moved from isolated marker studies to a more comprehensive approach, integrating results of multiple genes analyzed with a variety of techniques on the DNA and RNA level. Although diagnosis of lymphoma still relies on the careful integration of clinical, morphological, phenotypic, and, if necessary molecular features, and only few entities are defined strictly by genetic features, genetic profiling has contributed profoundly to our current understanding of lymphomas and shaped the two current lymphoma classifications, the International Consensus Classification and the fifth edition of the WHO classification of lymphoid malignancies. In this review, the current state of the art of molecular diagnostics in lymphoproliferations is summarized, including clonality analysis, mutational studies, and gene expression profiling, with a focus on practical applications for diagnosis and prognostication. With consideration for differences in accessibility of high throughput techniques and cost limitations, we tried to distinguish between diagnostically relevant and in part disease-defining molecular features and optional, more extensive genetic profiling, which is usually restricted to clinical studies, patients with relapsed or refractory disease or specific therapeutic decisions. Although molecular diagnostics in lymphomas currently is primarily done for diagnosis and subclassification, prognostic stratification and predictive markers will gain importance in the near future.
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Affiliation(s)
- Falko Fend
- Institute of Pathology and Neuropathology and Comprehensive Cancer Center, University Hospital Tübingen, Tübingen, Germany.
| | - Michiel van den Brand
- Pathology-DNA, Location Rijnstate Hospital, Arnhem, the Netherlands
- Department of Pathology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Patricia Jta Groenen
- Department of Pathology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Leticia Quintanilla-Martinez
- Institute of Pathology and Neuropathology and Comprehensive Cancer Center, University Hospital Tübingen, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) 'Image Guided and Functionally Instructed Tumor Therapies', Eberhard Karls University Tübingen, Tübingen, Germany
| | - Adam Bagg
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
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Bosch F, Kuruvilla J, Vassilakopoulos TP, Maio DD, Wei MC, Zumofen MHB, Nastoupil LJ. Indirect Treatment Comparisons of Mosunetuzumab With Third- and Later-Line Treatments for Relapsed/Refractory Follicular Lymphoma. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2024; 24:105-121. [PMID: 37981564 DOI: 10.1016/j.clml.2023.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/15/2023] [Accepted: 09/25/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND No established standard of care exists for relapsed/refractory (RR) follicular lymphoma (FL) after ≥2 prior therapies. We conducted indirect treatment comparisons (ITCs) to compare the efficacy and tolerability of mosunetuzumab with those of available treatments used in this setting. METHODS A systematic literature review (SLR) and subsequent feasibility assessments were conducted to identify the most suitable comparator studies in terms of design, available endpoints and populations. Imbalances in patient characteristics between NCT02500407 and studies featuring aggregate or patient-level data availability were accounted for using matching-adjusted indirect comparison (MAIC) and propensity score-based methodologies, respectively. RESULTS ZUMA-5, ELARA, DELTA, DYNAMO, UNITY-NHL, AUGMENT and NCT01897571 passed the MAIC feasibility assessment. Patient-level data were available from GADOLIN, CONTRALTO and NCT02257567. MAIC results generally favored mosunetuzumab over tazemetostat in EHZ2wild-type patients for all outcomes and over PI3K inhibitors for complete response (CR), objective response rate (ORR), discontinuations due to adverse events and progression-free survival (PFS) with umbralisib. MAICs favored CART therapies for PFS and, to a lesser extent, ORR and CR. Comparisons with anti-CD20 antibody-based regimens yielded mixed results. CONCLUSIONS ITCs suggest that mosunetuzumab may lead to superior outcomes over tazemetostat (in EHZ2wild-type patients) and PI3K inhibitors and may be a promising alternative to re-challenging with a different anti-CD20 regimen in patients who relapse after ≥2 prior anti-CD20 lines. Although preliminary results somewhat favored CART therapies, limitations and uncertainties remain because of intrinsic differences in study design. Mosunetuzumab could thus be a promising treatment option for patients with RR FL after ≥2 prior therapies.
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Affiliation(s)
- Francesc Bosch
- Vall d'Hebron University Hospital, Experimental Hematology, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain.
| | | | - Theodoros P Vassilakopoulos
- Department of Haematology and Bone Marrow Transplantation, Laikon General Hospital, National and Kapodistrian University of Athens, Athens, Greece
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Fobare S, Elgamal OA, Wunderlich M, Stahl E, Mehmood A, Furby C, Lerma JR, Sesterhenn TM, Pan J, Rai J, Johnstone ME, Abdul-Aziz A, Johnson ML, Rai SN, Byrd JC, Hertlein E. Inhibition of Enhancer of Zeste Homolog 2 Induces Blast Differentiation, Impairs Engraftment and Prolongs Survival in Murine Models of Acute Myeloid Leukemia. Cancers (Basel) 2024; 16:569. [PMID: 38339323 PMCID: PMC10854504 DOI: 10.3390/cancers16030569] [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: 11/17/2023] [Revised: 01/21/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Acute myeloid leukemia (AML) is the malignant proliferation of immature myeloid cells characterized by a block in differentiation. As such, novel therapeutic strategies to promote the differentiation of immature myeloid cells have been successful in AML, although these agents are targeted to a specific mutation that is only present in a subset of AML patients. In the current study, we show that targeting the epigenetic modifier enhancer of zeste homolog 2 (EZH2) can induce the differentiation of immature blast cells into a more mature myeloid phenotype and promote survival in AML murine models. METHODS The EZH2 inhibitor EPZ011989 (EPZ) was studied in AML cell lines, primary in AML cells and normal CD34+ stem cells. A pharmacodynamic assessment of H3K27me3; studies of differentiation, cell growth, and colony formation; and in vivo therapeutic studies including the influence on primary AML cell engraftment were also conducted. RESULTS EPZ inhibited H3K27me3 in AML cell lines and primary AML samples in vitro. EZH2 inhibition reduced colony formation in multiple AML cell lines and primary AML samples, while exhibiting no effect on colony formation in normal CD34+ stem cells. In AML cells, EPZ promoted phenotypic evidence of differentiation. Finally, the pretreatment of primary AML cells with EPZ significantly delayed engraftment and prolonged the overall survival when engrafted into immunodeficient mice. CONCLUSIONS Despite evidence that EZH2 silencing in MDS/MPN can promote AML pathogenesis, our data demonstrate that the therapeutic inhibition of EZH2 in established AML has the potential to improve survival.
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Affiliation(s)
- Sydney Fobare
- Medical Scientist Training Program, The Ohio State University, Columbus, OH 43210, USA;
- Department of Internal Medicine, University of Cincinnati, Cincinnati, OH 45229, USA (J.C.B.)
| | - Ola A. Elgamal
- Department of Internal Medicine, University of Cincinnati, Cincinnati, OH 45229, USA (J.C.B.)
| | - Mark Wunderlich
- Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital, Cincinnati, OH 45229, USA
| | - Emily Stahl
- Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Abeera Mehmood
- Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Casie Furby
- Department of Internal Medicine, University of Cincinnati, Cincinnati, OH 45229, USA (J.C.B.)
| | - James R. Lerma
- Department of Internal Medicine, University of Cincinnati, Cincinnati, OH 45229, USA (J.C.B.)
| | - Thomas M. Sesterhenn
- Department of Internal Medicine, University of Cincinnati, Cincinnati, OH 45229, USA (J.C.B.)
| | - Jianmin Pan
- Division of Biostatistics and Bioinformatics, Department of Environmental Health and Public Health Sciences, University of Cincinnati, Cincinnati, OH 45267, USA
- The Cancer Data Science Center, Department of Environmental Health and Public Health Sciences, University of Cincinnati, Cincinnati, OH 45267, USA
- Biostatistics and Informatics Shared Resource, University of Cincinnati Cancer Center, Cincinnati, OH 45267, USA
| | - Jayesh Rai
- Division of Biostatistics and Bioinformatics, Department of Environmental Health and Public Health Sciences, University of Cincinnati, Cincinnati, OH 45267, USA
- The Cancer Data Science Center, Department of Environmental Health and Public Health Sciences, University of Cincinnati, Cincinnati, OH 45267, USA
- Biostatistics and Informatics Shared Resource, University of Cincinnati Cancer Center, Cincinnati, OH 45267, USA
| | - Megan E. Johnstone
- Department of Internal Medicine, University of Cincinnati, Cincinnati, OH 45229, USA (J.C.B.)
| | - Amina Abdul-Aziz
- Department of Internal Medicine, University of Cincinnati, Cincinnati, OH 45229, USA (J.C.B.)
| | - Mariah L. Johnson
- Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Shesh N. Rai
- Division of Biostatistics and Bioinformatics, Department of Environmental Health and Public Health Sciences, University of Cincinnati, Cincinnati, OH 45267, USA
- The Cancer Data Science Center, Department of Environmental Health and Public Health Sciences, University of Cincinnati, Cincinnati, OH 45267, USA
- Biostatistics and Informatics Shared Resource, University of Cincinnati Cancer Center, Cincinnati, OH 45267, USA
| | - John C. Byrd
- Department of Internal Medicine, University of Cincinnati, Cincinnati, OH 45229, USA (J.C.B.)
| | - Erin Hertlein
- Department of Internal Medicine, University of Cincinnati, Cincinnati, OH 45229, USA (J.C.B.)
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Orlacchio A, Muzyka S, Gonda TA. Epigenetic therapeutic strategies in pancreatic cancer. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2024; 383:1-40. [PMID: 38359967 DOI: 10.1016/bs.ircmb.2023.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal solid malignancies, characterized by its aggressiveness and metastatic potential, with a 5-year survival rate of only 8-11%. Despite significant improvements in PDAC treatment and management, therapeutic alternatives are still limited. One of the main reasons is its high degree of intra- and inter-individual tumor heterogeneity which is established and maintained through a complex network of transcription factors and epigenetic regulators. Epigenetic drugs, have shown promising preclinical results in PDAC and are currently being evaluated in clinical trials both for their ability to sensitize cancer cells to cytotoxic drugs and to counteract the immunosuppressive characteristic of PDAC tumor microenvironment. In this review, we discuss the current status of epigenetic treatment strategies to overcome molecular and cellular PDAC heterogeneity in order to improve response to therapy.
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Affiliation(s)
- Arturo Orlacchio
- Division of Gastroenterology and Hepatology, New York University, New York, NY, United States
| | - Stephen Muzyka
- Division of Gastroenterology and Hepatology, New York University, New York, NY, United States
| | - Tamas A Gonda
- Division of Gastroenterology and Hepatology, New York University, New York, NY, United States.
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Falkenstern L, Georgi V, Bunse S, Badock V, Husemann M, Roehn U, Stellfeld T, Fitzgerald M, Ferrara S, Stöckigt D, Stresemann C, Hartung IV, Fernández-Montalván A. A miniaturized mode-of-action profiling platform enables high throughput characterization of the molecular and cellular dynamics of EZH2 inhibition. Sci Rep 2024; 14:1739. [PMID: 38242973 PMCID: PMC10799085 DOI: 10.1038/s41598-023-50964-x] [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: 07/01/2023] [Accepted: 12/28/2023] [Indexed: 01/21/2024] Open
Abstract
The market approval of Tazemetostat (TAZVERIK) for the treatment of follicular lymphoma and epithelioid sarcoma has established "enhancer of zeste homolog 2" (EZH2) as therapeutic target in oncology. Despite their structural similarities and common mode of inhibition, Tazemetostat and other EZH2 inhibitors display differentiated pharmacological profiles based on their target residence time. Here we established high throughput screening methods based on time-resolved fluorescence energy transfer, scintillation proximity and high content analysis microscopy to quantify the biochemical and cellular binding of a chemically diverse collection of EZH2 inhibitors. These assays allowed to further characterize the interplay between EZH2 allosteric modulation by methylated histone tails (H3K27me3) and inhibitor binding, and to evaluate the impact of EZH2's clinically relevant mutant Y641N on drug target residence times. While all compounds in this study exhibited slower off-rates, those with clinical candidate status display significantly slower target residence times in wild type EZH2 and disease-related mutants. These inhibitors interact in a more entropy-driven fashion and show the most persistent effects in cellular washout and antiproliferative efficacy experiments. Our work provides mechanistic insights for the largest cohort of EZH2 inhibitors reported to date, demonstrating that-among several other binding parameters-target residence time is the best predictor of cellular efficacy.
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Affiliation(s)
- Lilia Falkenstern
- Bayer AG, Müllerstrasse 178, 13353, Berlin, Germany
- Rentschler Biopharma SE, Erwin-Rentschler-Straße 21, 88471, Laupheim, Germany
| | - Victoria Georgi
- Bayer AG, Müllerstrasse 178, 13353, Berlin, Germany
- Nuvisan Innovation Campus Berlin, Müllerstrasse 178, 13353, Berlin, Germany
| | - Stefanie Bunse
- Bayer AG, Müllerstrasse 178, 13353, Berlin, Germany
- Nuvisan Innovation Campus Berlin, Müllerstrasse 178, 13353, Berlin, Germany
| | - Volker Badock
- Bayer AG, Müllerstrasse 178, 13353, Berlin, Germany
- Nuvisan Innovation Campus Berlin, Müllerstrasse 178, 13353, Berlin, Germany
| | | | - Ulrike Roehn
- Bayer AG, Müllerstrasse 178, 13353, Berlin, Germany
- Nuvisan Innovation Campus Berlin, Müllerstrasse 178, 13353, Berlin, Germany
| | - Timo Stellfeld
- Bayer AG, Müllerstrasse 178, 13353, Berlin, Germany
- Nuvisan Innovation Campus Berlin, Müllerstrasse 178, 13353, Berlin, Germany
| | - Mark Fitzgerald
- Bayer AG, Müllerstrasse 178, 13353, Berlin, Germany
- Nested Therapeutics, 1030 Massachusetts Avenue, Suite 410, Cambridge, MA, 02138, USA
| | - Steven Ferrara
- Broad Institute, Merkin Building, 415 Main St, Cambridge, MA, 02142, USA
| | - Detlef Stöckigt
- Bayer AG, Müllerstrasse 178, 13353, Berlin, Germany
- Nuvisan Innovation Campus Berlin, Müllerstrasse 178, 13353, Berlin, Germany
| | - Carlo Stresemann
- Bayer AG, Müllerstrasse 178, 13353, Berlin, Germany
- Nuvisan Innovation Campus Berlin, Müllerstrasse 178, 13353, Berlin, Germany
| | - Ingo V Hartung
- Bayer AG, Müllerstrasse 178, 13353, Berlin, Germany
- Merck KGaA, Frankfurter Str. 250, 64293, Darmstadt, Germany
| | - Amaury Fernández-Montalván
- Bayer AG, Müllerstrasse 178, 13353, Berlin, Germany.
- Boehringer Ingelheim Pharma GmbH & Co. KG, Birkendorfer Str. 65, 88400, Biberach an der Riß, Germany.
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Su R, Cao W, Ma G, Li W, Li Z, Liu Y, Chen L, Chen Z, Li X, Cui P, Huang G. Cyclohexene oxide CA, a derivative of zeylenone, exhibits anti-cancer activity in glioblastoma by inducing G0/G1 phase arrest through interference with EZH2. Front Pharmacol 2024; 14:1326245. [PMID: 38264522 PMCID: PMC10803536 DOI: 10.3389/fphar.2023.1326245] [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: 10/23/2023] [Accepted: 12/19/2023] [Indexed: 01/25/2024] Open
Abstract
Introduction: Due to its highly aggressiveness and malignancy, glioblastoma (GBM) urgently requires a safe and effective treatment strategy. Zeylenone, a natural polyoxygenated cyclohexenes compound isolated from Uvaria grandiflora, has exhibited potential biological activities in various human diseases, including tumors. Methods: We designed and synthesized a series of (+)-Zeylenone analogues and evaluated their anti-GBM roles through structural-activity analysis. Cell Counting Kit-8, TUNEL, transwell and flow cytometry were employed for investigating the anticancer effects of CA on GBM cells. Western blotting, molecular docking, qRT-PCR and ChIP assays were performed to reveal the underlying mechanisms by which CA regulates the GBM cell cycle. The nude mouse xenograft model, HE staining, immunohistochemistry and was used to evaluate the anticancer effect of CA in vivo. Results: We identified CA ((1R, 2R, 3S)-3-p-fluorobenzoyl-zeylenone) as having the lowest IC50 value in GBM cells. CA treatment significantly inhibited the malignant behaviors of GBM cells and induced G0/G1 phase arrest in vitro. Furthermore, we validated the molecular mechanism by which CA interferes with EZH2, attenuating the down-regulation of cyclin-dependent kinase inhibitors p27 and p16 by the PRC2 complex. By establishing orthotopic nude mice models, we further validated the inhibitory role of CA on tumorigenesis of GBM cells in vivo and its potential values to synergistically potentiate the anti-tumor effects of EZH2 inhibitors. Conclusion: Overall, this paper elucidated the anti-GBM effects and potential mechanisms of CA, and may provide a therapeutic drug candidate for GBM treatment.
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Affiliation(s)
- Rui Su
- Department of Neurosurgery, Shenzhen Second People’s Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Weiwei Cao
- Institute of Pharmacy, Shenzhen University Medical School, Shenzhen, China
| | - Guoxu Ma
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Weiping Li
- Department of Neurosurgery, Shenzhen Second People’s Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Zongyang Li
- Department of Neurosurgery, Shenzhen Second People’s Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Yongpei Liu
- Department of Neurosurgery, Shenzhen Second People’s Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Lei Chen
- Department of Neurosurgery, Shenzhen Second People’s Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Zebin Chen
- Department of Pharmacy, Shenzhen Children’s Hospital, Shenzhen, China
| | - Xuejuan Li
- Department of Pharmacy, Shenzhen Children’s Hospital, Shenzhen, China
| | - Ping Cui
- Department of Pharmacy, Shenzhen Children’s Hospital, Shenzhen, China
| | - Guodong Huang
- Department of Neurosurgery, Shenzhen Second People’s Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
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Hashemi M, Nazdari N, Gholamiyan G, Paskeh MDA, Jafari AM, Nemati F, Khodaei E, Abyari G, Behdadfar N, Raei B, Raesi R, Nabavi N, Hu P, Rashidi M, Taheriazam A, Entezari M. EZH2 as a potential therapeutic target for gastrointestinal cancers. Pathol Res Pract 2024; 253:154988. [PMID: 38118215 DOI: 10.1016/j.prp.2023.154988] [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: 08/15/2023] [Revised: 11/18/2023] [Accepted: 11/27/2023] [Indexed: 12/22/2023]
Abstract
Gastrointestinal (GI) cancers continue to be a major cause of mortality and morbidity globally. Understanding the molecular pathways associated with cancer progression and severity is essential for creating effective cancer treatments. In cancer research, there is a notable emphasis on Enhancer of zeste homolog 2 (EZH2), a key player in gene expression influenced by its irregular expression and capacity to attach to promoters and alter methylation status. This review explores the impact of EZH2 signaling on various GI cancers, such as colorectal, gastric, pancreatic, hepatocellular, esophageal, and cholangiocarcinoma. The primary function of EZH2 signaling is to facilitate the accelerated progression of cancer cells. Additionally, EZH2 has the capacity to modulate the reaction of GI cancers to chemotherapy and radiotherapy. Numerous pathways, including long non-coding RNAs and microRNAs, serve as upstream regulators of EZH2 in these types of cancer. EZH2's enzymatic activity enables it to attach to target gene promoters, resulting in methylation that modifies their expression. EZH2 could be considered as an independent prognostic factor, with increased expression correlating with a worse disease prognosis. Additionally, a range of gene therapies including small interfering RNA, and anti-tumor agents are being explored to target EZH2 for cancer treatment. This comprehensive review underscores the current insights into EZH2 signaling in gastrointestinal cancers and examines the prospect of therapies targeting EZH2 to enhance patient outcomes.
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Affiliation(s)
- Mehrdad Hashemi
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Naghmeh Nazdari
- Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Ghazaleh Gholamiyan
- Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mahshid Deldar Abad Paskeh
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Ali Moghadas Jafari
- Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Fateme Nemati
- Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Elaheh Khodaei
- Department of Dermatology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ghazal Abyari
- Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Nazanin Behdadfar
- Young Researchers and Elite Club, Buinzahra Branch, Islamic Azad University, Buinzahra, Iran
| | - Behnaz Raei
- Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Rasoul Raesi
- Department of Health Services Management, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medical-Surgical Nursing, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Noushin Nabavi
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, V6H3Z6 Vancouver, BC, Canada
| | - Peng Hu
- Department of Emergency, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Orthopedics, Faculty of medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Maliheh Entezari
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
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Matasar M, Sanchez Alvarez J, Parisé H, Zuk E, Di Maio D, Shapouri S, Kim E, Lin SW. Cost-effectiveness analysis of mosunetuzumab for treatment of relapsed or refractory follicular lymphoma after two or more lines of systemic therapy in the United States. J Med Econ 2024; 27:766-776. [PMID: 38712895 DOI: 10.1080/13696998.2024.2352820] [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: 11/30/2023] [Accepted: 05/05/2024] [Indexed: 05/08/2024]
Abstract
AIMS Mosunetuzumab has received accelerated approval by the US Food and Drug Administration for adult patients with relapsed or refractory (R/R) follicular lymphoma (FL) after two or more lines of systemic therapy. We evaluated the cost-effectiveness of mosunetuzumab for the treatment of R/R FL from a US private payer perspective. MATERIALS AND METHODS A partitioned survival model simulated lifetime costs and outcomes of mosunetuzumab against seven comparators: axicabtagene ciloleucel (axi-cel), tisagenlecleucel (tisa-cel), tazemetostat (taz, EZH2 wild-type only), rituximab plus lenalidomide (R-Len) or bendamustine (R-Benda), obinutuzumab plus bendamustine (O-Benda), and a retrospective real-world cohort (RW) based on current patterns of care derived from US electronic health records (Flatiron Health). Efficacy data for mosunetuzumab were from the pivotal Phase II GO29781 trial (NCT02500407). Relative treatment efficacy was estimated from indirect treatment comparisons (ITCs). Costs included were related to treatment, adverse events, routine care, and terminal care. Except for drug costs (March 2023), all costs were inflated to 2022 US dollars. Costs and quality-adjusted life-years (QALYs) were used to calculate incremental cost-effectiveness ratios (ICERs). Net monetary benefit (NMB) was calculated using a willingness-to-pay (WTP) threshold of $150,000/QALY. RESULTS Mosunetuzumab dominated taz, tisa-cel, and axi-cel with greater QALYs and lower costs. Mosunetuzumab was projected to be cost-effective against R-Benda, O-Benda, and RW with ICERs of $78,607, $42,731, and $21,434, respectively. Mosunetuzumab incurred lower costs but lower QALYs vs. R-Len. NMBs showed that mosunetuzumab was cost-effective against comparators except R-Len. LIMITATIONS Without head-to-head comparative data, the model had to rely on ITCs, some of which were affected by residual bias. Model inputs were obtained from multiple sources. Extensive sensitivity analyses assessed the importance of these uncertainties. CONCLUSION Mosunetuzumab is estimated to be cost-effective compared with approved regimens except R-Len for the treatment of adults with R/R FL.
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Affiliation(s)
- Matthew Matasar
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | | | | | - Eric Zuk
- Medicus Economics LLC, Boston, MA, USA
| | | | | | - Eunice Kim
- Genentech, Inc., South San Francisco, CA, USA
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Watanabe T. Gene targeted and immune therapies for nodal and gastrointestinal follicular lymphomas. World J Gastroenterol 2023; 29:6179-6197. [PMID: 38186866 PMCID: PMC10768399 DOI: 10.3748/wjg.v29.i48.6179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 11/02/2023] [Accepted: 12/18/2023] [Indexed: 12/27/2023] Open
Abstract
Follicular lymphoma (FL) is the most common indolent B-cell lymphoma (BCL) globally. Recently, its incidence has increased in Europe, the United States, and Asia, with the number of gastrointestinal FL cases expected to increase. Genetic abnormalities related to t(14;18) translocation, BCL2 overexpression, NF-κB pathway-related factors, histone acetylases, and histone methyltransferases cause FL and enhance its proliferation. Meanwhile, microRNAs are commonly used in diagnosing FL and predicting patient prognosis. Many clinical trials on novel therapeutics targeting these genetic abnormalities and immunomodulatory mechanisms have been conducted, resulting in a marked improvement in therapeutic outcomes for FL. Although developing these innovative therapeutic agents targeting specific genetic mutations and immune pathways has provided hope for curative options, FL treatment has become more complex, requiring combinatorial therapeutic regimens. However, optimal treatment combinations have not yet been achieved, highlighting the importance of a complete under-standing regarding the pathogenesis of gastrointestinal FL. Accordingly, this article reviews key research on the molecular pathogenesis of nodal FL and novel therapies targeting the causative genetic mutations. Moreover, the results of clinical trials are summarized, with a particular focus on treating nodal and gastrointestinal FLs.
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Affiliation(s)
- Takuya Watanabe
- Department of Internal Medicine and Gastroenterology, Watanabe Internal Medicine Aoyama Clinic, Niigata 9502002, Japan
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48
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Shyu JY, Schlag PA, Karwowska SM, Manohar CF, Truong HM, Longshore JW, Zhang G. Performance of the cobas EZH2 mutation test on clinical samples from non-Hodgkin lymphoma patients. PLoS One 2023; 18:e0292251. [PMID: 38096164 PMCID: PMC10721068 DOI: 10.1371/journal.pone.0292251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 09/17/2023] [Indexed: 12/17/2023] Open
Abstract
OBJECTIVE To present the technical verification and clinical validation of the companion diagnostic assay, cobas® EZH2 Mutation Test (cobas EZH2 Test), targeting gain-of-function EZH2 mutations in follicular lymphoma (FL) and diffuse large B-cell lymphoma (DLBCL). The focus is on patient clinical samples proving that the test met the performance criteria required for FDA approval of a companion diagnostic test. DESIGN Epizyme, Inc., Eisai Co., Ltd., and Roche Molecular Systems, Inc., collaborated to develop the cobas EZH2 Test on an RT-PCR platform. The assay design needed to detect the gain-of-function EZH2 mutations found in FL and DLBCL indications. Thus, the test was optimized for investigational purposes in a clinical trial setting. Part of its technical verification included testing of patient tumor samples with a documented diagnosis of FL and DLBCL procured from commercial vendors, and the clinical validation used patient samples from the Epizyme clinical study. Both the technical performance verification method correlation study (104 clinical commercially acquired samples) and the clinical validation accuracy study (341 patient samples from the therapeutic study) used next-generation sequencing as a reference method to establish true vs. false results by cobas EZH2 Test. The reproducibility study used a 15-member panel of DNA samples with varying EZH2 mutation status from procured clinical FL and DLBCL patient samples under multiple variables. RESULTS Single and rare, infrequent double EZH2 mutations were detected in FL and DLBCL samples. Agreements between results from cobas EZH2 and sequencing were >98% from commercial clinical samples and from the therapeutic study clinical samples. The reproducibility study obtained 178 to 180 valid results for each panel member, with an overall invalid rate of 0.37%. The agreement for each per panel member was 100%. CONCLUSION cobas EZH2 Test data demonstrated that the test is reliable and will perform well in a commercial customer environment.
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Affiliation(s)
- Johnny Y. Shyu
- Roche Molecular Systems, Inc., Pleasanton, California, United States of America
| | - Peter A. Schlag
- Roche Molecular Systems, Inc., Pleasanton, California, United States of America
| | - Sylwia M. Karwowska
- Roche Molecular Systems, Inc., Pleasanton, California, United States of America
| | - Chitra F. Manohar
- Roche Molecular Systems, Inc., Pleasanton, California, United States of America
| | - Huan M. Truong
- Roche Molecular Systems, Inc., Pleasanton, California, United States of America
| | - John W. Longshore
- Carolinas Pathology Group and Carolinas HealthCare System, Charlotte, North Carolina, United States of America
| | - Guili Zhang
- Roche Molecular Systems, Inc., Pleasanton, California, United States of America
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49
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Xu B, Lin ZJ. [How I treat relapsed/transformed follicular lymphoma]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2023; 44:983-988. [PMID: 38503520 PMCID: PMC10834864 DOI: 10.3760/cma.j.issn.0253-2727.2023.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Indexed: 03/21/2024]
Affiliation(s)
- B Xu
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen 361003, China
| | - Z J Lin
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen 361003, China
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50
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Cordeiro-Spinetti E, Rothbart SB. Lysine methylation signaling in skeletal muscle biology: from myogenesis to clinical insights. Biochem J 2023; 480:1969-1986. [PMID: 38054592 DOI: 10.1042/bcj20230223] [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: 09/28/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 12/07/2023]
Abstract
Lysine methylation signaling is well studied for its key roles in the regulation of transcription states through modifications on histone proteins. While histone lysine methylation has been extensively studied, recent discoveries of lysine methylation on thousands of non-histone proteins has broadened our appreciation for this small chemical modification in the regulation of protein function. In this review, we highlight the significance of histone and non-histone lysine methylation signaling in skeletal muscle biology, spanning development, maintenance, regeneration, and disease progression. Furthermore, we discuss potential future implications for its roles in skeletal muscle biology as well as clinical applications for the treatment of skeletal muscle-related diseases.
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Affiliation(s)
| | - Scott B Rothbart
- Department of Epigenetics, Van Andel Institute, Grand Rapids, Michigan 49503, U.S.A
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