1
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Zhang Y, Xu M, Yuan J, Hu Z, Jiang J, Huang J, Wang B, Shen J, Long M, Fan Y, Montone KT, Tanyi JL, Tavana O, Chan HM, Hu X, Zhang L. Repression of PRMT activities sensitize homologous recombination-proficient ovarian and breast cancer cells to PARP inhibitor treatment. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.21.595159. [PMID: 38826355 PMCID: PMC11142138 DOI: 10.1101/2024.05.21.595159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
An "induced PARP inhibitor (PARPi) sensitivity by epigenetic modulation" strategy is being evaluated in the clinic to sensitize homologous recombination (HR)-proficient tumors to PARPi treatments. To expand its clinical applications and identify more efficient combinations, we performed a drug screen by combining PARPi with 74 well-characterized epigenetic modulators that target five major classes of epigenetic enzymes. Both type I PRMT inhibitor and PRMT5 inhibitor exhibit high combination and clinical priority scores in our screen. PRMT inhibition significantly enhances PARPi treatment-induced DNA damage in HR-proficient ovarian and breast cancer cells. Mechanistically, PRMTs maintain the expression of genes associated with DNA damage repair and BRCAness and regulate intrinsic innate immune pathways in cancer cells. Analyzing large-scale genomic and functional profiles from TCGA and DepMap further confirms that PRMT1, PRMT4, and PRMT5 are potential therapeutic targets in oncology. Finally, PRMT1 and PRMT5 inhibition act synergistically to enhance PARPi sensitivity. Our studies provide a strong rationale for the clinical application of a combination of PRMT and PARP inhibitors in patients with HR-proficient ovarian or breast cancer.
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2
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Lin CC, Chang TC, Wang Y, Guo L, Gao Y, Bikorimana E, Lemoff A, Fang YV, Zhang H, Zhang Y, Ye D, Soria-Bretones I, Servetto A, Lee KM, Luo X, Otto JJ, Akamatsu H, Napolitano F, Mani R, Cescon DW, Xu L, Xie Y, Mendell JT, Hanker AB, Arteaga CL. PRMT5 is an actionable therapeutic target in CDK4/6 inhibitor-resistant ER+/RB-deficient breast cancer. Nat Commun 2024; 15:2287. [PMID: 38480701 PMCID: PMC10937713 DOI: 10.1038/s41467-024-46495-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 02/29/2024] [Indexed: 03/17/2024] Open
Abstract
CDK4/6 inhibitors (CDK4/6i) have improved survival of patients with estrogen receptor-positive (ER+) breast cancer. However, patients treated with CDK4/6i eventually develop drug resistance and progress. RB1 loss-of-function alterations confer resistance to CDK4/6i, but the optimal therapy for these patients is unclear. Through a genome-wide CRISPR screen, we identify protein arginine methyltransferase 5 (PRMT5) as a molecular vulnerability in ER+/RB1-knockout breast cancer cells. Inhibition of PRMT5 blocks the G1-to-S transition in the cell cycle independent of RB, leading to growth arrest in RB1-knockout cells. Proteomics analysis uncovers fused in sarcoma (FUS) as a downstream effector of PRMT5. Inhibition of PRMT5 results in dissociation of FUS from RNA polymerase II, leading to hyperphosphorylation of serine 2 in RNA polymerase II, intron retention, and subsequent downregulation of proteins involved in DNA synthesis. Furthermore, treatment with the PRMT5 inhibitor pemrametostat and a selective ER degrader fulvestrant synergistically inhibits growth of ER+/RB-deficient cell-derived and patient-derived xenografts. These findings highlight dual ER and PRMT5 blockade as a potential therapeutic strategy to overcome resistance to CDK4/6i in ER+/RB-deficient breast cancer.
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Affiliation(s)
- Chang-Ching Lin
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, USA
| | - Tsung-Cheng Chang
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, TX, USA
- Howard Hughes Medical Institute, UT Southwestern Medical Center, Dallas, TX, USA
| | - Yunguan Wang
- Quantitative Biomedical Research Center, Department of Population & Data Sciences, Peter O'Donnell Jr. School of Public Health, UT Southwestern Medical Center, Dallas, TX, USA
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Lei Guo
- Quantitative Biomedical Research Center, Department of Population & Data Sciences, Peter O'Donnell Jr. School of Public Health, UT Southwestern Medical Center, Dallas, TX, USA
| | - Yunpeng Gao
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Emmanuel Bikorimana
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, USA
| | - Andrew Lemoff
- Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX, USA
| | - Yisheng V Fang
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, USA
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
| | - He Zhang
- Quantitative Biomedical Research Center, Department of Population & Data Sciences, Peter O'Donnell Jr. School of Public Health, UT Southwestern Medical Center, Dallas, TX, USA
| | - Yanfeng Zhang
- Quantitative Biomedical Research Center, Department of Population & Data Sciences, Peter O'Donnell Jr. School of Public Health, UT Southwestern Medical Center, Dallas, TX, USA
- Department of Genetics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Dan Ye
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, USA
| | | | - Alberto Servetto
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, USA
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Kyung-Min Lee
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, USA
- Department of Life Science, Hanyang University, Seoul, South Korea
| | - Xuemei Luo
- Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX, USA
| | - Joseph J Otto
- Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX, USA
| | - Hiroaki Akamatsu
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, USA
- Third Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
| | - Fabiana Napolitano
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, USA
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Ram Mani
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
| | - David W Cescon
- Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
| | - Lin Xu
- Quantitative Biomedical Research Center, Department of Population & Data Sciences, Peter O'Donnell Jr. School of Public Health, UT Southwestern Medical Center, Dallas, TX, USA
| | - Yang Xie
- Quantitative Biomedical Research Center, Department of Population & Data Sciences, Peter O'Donnell Jr. School of Public Health, UT Southwestern Medical Center, Dallas, TX, USA
| | - Joshua T Mendell
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, TX, USA
- Howard Hughes Medical Institute, UT Southwestern Medical Center, Dallas, TX, USA
| | - Ariella B Hanker
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, USA
| | - Carlos L Arteaga
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, USA.
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Wang YJ, Cao JB, Yang J, Liu T, Yu HL, He ZX, Bao SL, He XX, Zhu XJ. PRMT5-mediated homologous recombination repair is essential to maintain genomic integrity of neural progenitor cells. Cell Mol Life Sci 2024; 81:123. [PMID: 38459149 PMCID: PMC10923982 DOI: 10.1007/s00018-024-05154-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: 11/14/2023] [Revised: 01/25/2024] [Accepted: 02/05/2024] [Indexed: 03/10/2024]
Abstract
Maintaining genomic stability is a prerequisite for proliferating NPCs to ensure genetic fidelity. Though histone arginine methylation has been shown to play important roles in safeguarding genomic stability, the underlying mechanism during brain development is not fully understood. Protein arginine N-methyltransferase 5 (PRMT5) is a type II protein arginine methyltransferase that plays a role in transcriptional regulation. Here, we identify PRMT5 as a key regulator of DNA repair in response to double-strand breaks (DSBs) during NPC proliferation. Prmt5F/F; Emx1-Cre (cKO-Emx1) mice show a distinctive microcephaly phenotype, with partial loss of the dorsal medial cerebral cortex and complete loss of the corpus callosum and hippocampus. This phenotype is resulted from DSBs accumulation in the medial dorsal cortex followed by cell apoptosis. Both RNA sequencing and in vitro DNA repair analyses reveal that PRMT5 is required for DNA homologous recombination (HR) repair. PRMT5 specifically catalyzes H3R2me2s in proliferating NPCs in the developing mouse brain to enhance HR-related gene expression during DNA repair. Finally, overexpression of BRCA1 significantly rescues DSBs accumulation and cell apoptosis in PRMT5-deficient NSCs. Taken together, our results show that PRMT5 maintains genomic stability by regulating histone arginine methylation in proliferating NPCs.
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Affiliation(s)
- Ya-Jun Wang
- Key Laboratory of Molecular Epigenetics, Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, 130024, China
| | - Jian-Bo Cao
- Key Laboratory of Molecular Epigenetics, Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, 130024, China
| | - Jing Yang
- Key Laboratory of Molecular Epigenetics, Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, 130024, China
| | - Tong Liu
- Key Laboratory of Molecular Epigenetics, Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, 130024, China
| | - Hua-Li Yu
- Key Laboratory of Molecular Epigenetics, Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, 130024, China
| | - Zi-Xuan He
- Key Laboratory of Molecular Epigenetics, Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, 130024, China
| | - Shi-Lai Bao
- State Key Laboratory of Molecular and Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Xiao-Xiao He
- Key Laboratory of Molecular Epigenetics, Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, 130024, China.
| | - Xiao-Juan Zhu
- Key Laboratory of Molecular Epigenetics, Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun, 130024, China.
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4
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Wang Y, Shtylla B, Chou T. Order-of-Mutation Effects on Cancer Progression: Models for Myeloproliferative Neoplasm. Bull Math Biol 2024; 86:32. [PMID: 38363386 PMCID: PMC10873249 DOI: 10.1007/s11538-024-01257-5] [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: 09/01/2023] [Accepted: 01/08/2024] [Indexed: 02/17/2024]
Abstract
In some patients with myeloproliferative neoplasms (MPN), two genetic mutations are often found: JAK2 V617F and one in the TET2 gene. Whether one mutation is present influences how the other subsequent mutation will affect the regulation of gene expression. In other words, when a patient carries both mutations, the order of when they first arose has been shown to influence disease progression and prognosis. We propose a nonlinear ordinary differential equation, the Moran process, and Markov chain models to explain the non-additive and non-commutative mutation effects on recent clinical observations of gene expression patterns, proportions of cells with different mutations, and ages at diagnosis of MPN. Combined, these observations are used to shape our modeling framework. Our key proposal is that bistability in gene expression provides a natural explanation for many observed order-of-mutation effects. We also propose potential experimental measurements that can be used to confirm or refute predictions of our models.
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Affiliation(s)
- Yue Wang
- Department of Computational Medicine, UCLA, Los Angeles, CA, 90095, USA
- Department of Statistics, Irving Institute for Cancer Dynamics, Columbia University, New York, NY, 10027, USA
| | - Blerta Shtylla
- Mathematics Department, Pomona College, Claremont, CA, 91711, USA
- Pharmacometrics and Systems Pharmacology, Pfizer Research and Development, San Diego, CA, 92121, USA
| | - Tom Chou
- Department of Computational Medicine, UCLA, Los Angeles, CA, 90095, USA.
- Department of Mathematics, UCLA, Los Angeles, CA, 90095, USA.
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5
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Verma T, Papadantonakis N, Peker Barclift D, Zhang L. Molecular Genetic Profile of Myelofibrosis: Implications in the Diagnosis, Prognosis, and Treatment Advancements. Cancers (Basel) 2024; 16:514. [PMID: 38339265 PMCID: PMC10854658 DOI: 10.3390/cancers16030514] [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: 12/30/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
Myelofibrosis (MF) is an essential element of primary myelofibrosis, whereas secondary MF may develop in the advanced stages of other myeloid neoplasms, especially polycythemia vera and essential thrombocythemia. Over the last two decades, advances in molecular diagnostic techniques, particularly the integration of next-generation sequencing in clinical laboratories, have revolutionized the diagnosis, classification, and clinical decision making of myelofibrosis. Driver mutations involving JAK2, CALR, and MPL induce hyperactivity in the JAK-STAT signaling pathway, which plays a central role in cell survival and proliferation. Approximately 80% of myelofibrosis cases harbor additional mutations, frequently in the genes responsible for epigenetic regulation and RNA splicing. Detecting these mutations is crucial for diagnosing myeloproliferative neoplasms (MPNs), especially in cases where no mutations are present in the three driver genes (triple-negative MPNs). While fibrosis in the bone marrow results from the disturbance of inflammatory cytokines, it is fundamentally associated with mutation-driven hematopoiesis. The mutation profile and order of acquiring diverse mutations influence the MPN phenotype. Mutation profiling reveals clonal diversity in MF, offering insights into the clonal evolution of neoplastic progression. Prognostic prediction plays a pivotal role in guiding the treatment of myelofibrosis. Mutation profiles and cytogenetic abnormalities have been integrated into advanced prognostic scoring systems and personalized risk stratification for MF. Presently, JAK inhibitors are part of the standard of care for MF, with newer generations developed for enhanced efficacy and reduced adverse effects. However, only a minority of patients have achieved a significant molecular-level response. Clinical trials exploring innovative approaches, such as combining hypomethylation agents that target epigenetic regulators, drugs proven effective in myelodysplastic syndrome, or immune and inflammatory modulators with JAK inhibitors, have demonstrated promising results. These combinations may be more effective in patients with high-risk mutations and complex mutation profiles. Expanding mutation profiling studies with more sensitive and specific molecular methods, as well as sequencing a broader spectrum of genes in clinical patients, may reveal molecular mechanisms in cases currently lacking detectable driver mutations, provide a better understanding of the association between genetic alterations and clinical phenotypes, and offer valuable information to advance personalized treatment protocols to improve long-term survival and eradicate mutant clones with the hope of curing MF.
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Affiliation(s)
- Tanvi Verma
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Nikolaos Papadantonakis
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA 30322, USA
| | - Deniz Peker Barclift
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Linsheng Zhang
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
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6
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Liu R, Yang Z, Yang T, Wang Z, Chen X, Zhu J, Ren A, Shi L, Yu H, Zhao M. PRMT5 regulates the polysaccharide content by controlling the splicing of thaumatin-like protein in Ganoderma lucidum. Microbiol Spectr 2023; 11:e0290623. [PMID: 37882562 PMCID: PMC10715077 DOI: 10.1128/spectrum.02906-23] [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: 07/24/2023] [Accepted: 09/07/2023] [Indexed: 10/27/2023] Open
Abstract
IMPORTANCE PRMT5 contributes to secondary metabolite biosynthesis in Ganoderma lucidum. However, the mechanism through which PRMT5 regulates the biosynthesis of secondary metabolites remains unclear. In the current study, PRMT5 silencing led to a significant decrease in the biosynthesis of polysaccharides from G. lucidum through the action of the alternative splicing of TLP. A shorter TLP2 isoform can directly bind to PGI and regulated polysaccharide biosynthesis. These results suggest that PRMT5 enhances PGI activity by regulating TLP binding to PGI. The results of the current study reveal a novel target gene for PRMT5-mediated alternative splicing and provide a reference for the identification of PRMT5 regulatory target genes.
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Affiliation(s)
- Rui Liu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Zhengyan Yang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Tao Yang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Zi Wang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xin Chen
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Jing Zhu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Ang Ren
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Liang Shi
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Hanshou Yu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Mingwen Zhao
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
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7
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Carter J, Hulse M, Sivakumar M, Burtell J, Thodima V, Wang M, Agarwal A, Vykuntam K, Spruance J, Bhagwat N, Rager J, Ruggeri B, Scherle P, Ito K. PRMT5 Inhibitors Regulate DNA Damage Repair Pathways in Cancer Cells and Improve Response to PARP Inhibition and Chemotherapies. CANCER RESEARCH COMMUNICATIONS 2023; 3:2233-2243. [PMID: 37861290 PMCID: PMC10627093 DOI: 10.1158/2767-9764.crc-23-0070] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 08/04/2023] [Accepted: 10/10/2023] [Indexed: 10/21/2023]
Abstract
Expression of protein arginine methyltransferase 5 (PRMT5) is highly positively correlated to DNA damage repair (DDR) and DNA replication pathway genes in many types of cancer cells, including ovarian and breast cancer. In the current study, we investigated whether pharmacologic inhibition of PRMT5 downregulates DDR/DNA replication pathway genes and sensitizes cancer cells to chemotherapy and PARP inhibition. Potent and selective PRMT5 inhibitors significantly downregulate expression of multiple DDR and DNA replication genes in cancer cells. Mechanistically, PRMT5 inhibition reduces the presence of PRMT5 and H4R3me2s on promoter regions of DDR genes such as BRCA1/2, RAD51, and ATM. PRMT5 inhibition also promotes global alternative splicing changes. Our data suggest that PRMT5 inhibition regulates expression of FANCA, PNKP, and ATM by promoting exon skipping and intron retention. Combining C220 or PRT543 with olaparib or chemotherapeutic agents such as cisplatin demonstrates a potent synergistic interaction in breast and ovarian cancer cells in vitro. Moreover, combination of PRT543 with olaparib effectively inhibits the growth of patient-derived breast and ovarian cancer xenografts. Furthermore, PRT543 treatment significantly inhibits growth of olaparib-resistant tumors in vivo. These studies reveal a novel mechanism of PRMT5 inhibition and suggest beneficial combinatorial effects with other therapies, particularly in patients with tumors that are resistant to therapies dependent on DNA damage as their mechanism of action. SIGNIFICANCE Patients with advanced cancers frequently develop resistance to chemotherapy or PARP inhibitors mainly due to circumvention and/or restoration of the inactivated DDR pathway genes. We demonstrate that inhibition of PRMT5 significantly downregulates a broad range of the DDR and DNA replication pathway genes. PRMT5 inhibitors combined with chemotherapy or PARP inhibitors demonstrate synergistic suppression of cancer cell proliferation and growth in breast and ovarian tumor models, including PARP inhibitor-resistant tumors.
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Affiliation(s)
- Jack Carter
- Prelude Therapeutics Incorporated, Wilmington, Delaware
| | - Michael Hulse
- Prelude Therapeutics Incorporated, Wilmington, Delaware
| | | | | | | | - Min Wang
- Prelude Therapeutics Incorporated, Wilmington, Delaware
| | | | | | | | - Neha Bhagwat
- Prelude Therapeutics Incorporated, Wilmington, Delaware
| | - Joseph Rager
- Prelude Therapeutics Incorporated, Wilmington, Delaware
| | - Bruce Ruggeri
- Prelude Therapeutics Incorporated, Wilmington, Delaware
| | - Peggy Scherle
- Prelude Therapeutics Incorporated, Wilmington, Delaware
| | - Koichi Ito
- Prelude Therapeutics Incorporated, Wilmington, Delaware
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8
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Brown-Burke F, Hwang I, Sloan S, Hinterschied C, Helmig-Mason J, Long M, Chan WK, Prouty A, Chung JH, Zhang Y, Singh S, Youssef Y, Bhagwat N, Chen Z, Chen-Kiang S, Di Liberto M, Elemento O, Sehgal L, Alinari L, Vaddi K, Scherle P, Lapalombella R, Paik J, Baiocchi RA. PRMT5 inhibition drives therapeutic vulnerability to combination treatment with BCL-2 inhibition in mantle cell lymphoma. Blood Adv 2023; 7:6211-6224. [PMID: 37327122 PMCID: PMC10582835 DOI: 10.1182/bloodadvances.2023009906] [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: 02/06/2023] [Revised: 06/08/2023] [Accepted: 06/08/2023] [Indexed: 06/18/2023] Open
Abstract
Mantle cell lymphoma (MCL) is an incurable B-cell malignancy that comprises up to 6% of non-Hodgkin lymphomas diagnosed annually and is associated with a poor prognosis. The average overall survival of patients with MCL is 5 years, and for most patients who progress on targeted agents, survival remains at a dismal 3 to 8 months. There is a major unmet need to identify new therapeutic approaches that are well tolerated to improve treatment outcomes and quality of life. The protein arginine methyltransferase 5 (PRMT5) enzyme is overexpressed in MCL and promotes growth and survival. Inhibition of PRMT5 drives antitumor activity in MCL cell lines and preclinical murine models. PRMT5 inhibition reduced the activity of prosurvival AKT signaling, which led to the nuclear translocation of FOXO1 and modulation of its transcriptional activity. Chromatin immunoprecipitation and sequencing identified multiple proapoptotic BCL-2 family members as FOXO1-bound genomic loci. We identified BAX as a direct transcriptional target of FOXO1 and demonstrated its critical role in the synergy observed between the selective PRMT5 inhibitor, PRT382, and the BCL-2 inhibitor, venetoclax. Single-agent and combination treatments were performed in 9 MCL lines. Loewe synergy scores showed significant levels of synergy in most MCL lines tested. Preclinical, in vivo evaluation of this strategy in multiple MCL models showed therapeutic synergy with combination venetoclax/PRT382 treatment with an increased survival advantage in 2 patient-derived xenograft models (P ≤ .0001, P ≤ .0001). Our results provide mechanistic rationale for the combination of PRMT5 inhibition and venetoclax to treat patients with MCL.
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Affiliation(s)
- Fiona Brown-Burke
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Inah Hwang
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - Shelby Sloan
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Claire Hinterschied
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - JoBeth Helmig-Mason
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Mackenzie Long
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Wing Keung Chan
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Alexander Prouty
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Ji-Hyun Chung
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | | | - Satishkumar Singh
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Youssef Youssef
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | | | - Zhengming Chen
- Division of Biostatistics, Department of Population Health Sciences, Weill Cornell Medicine, New York, NY
| | - Selina Chen-Kiang
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - Maurizio Di Liberto
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - Olivier Elemento
- Department of Physiology & Biophysics, Caryl and Israel Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, NY
| | - Lalit Sehgal
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Lapo Alinari
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | | | | | - Rosa Lapalombella
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Jihye Paik
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - Robert A. Baiocchi
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
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9
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Bai Y, Zhao H, Liu H, Wang W, Dong H, Zhao C. RNA methylation, homologous recombination repair and therapeutic resistance. Biomed Pharmacother 2023; 166:115409. [PMID: 37659205 DOI: 10.1016/j.biopha.2023.115409] [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: 07/06/2023] [Revised: 08/28/2023] [Accepted: 08/28/2023] [Indexed: 09/04/2023] Open
Abstract
Homologous recombination (HR) repair of DNA double-strand breaks (DSBs) is critical for maintaining genomic integrity and stability. Defects in HR increase the risk of tumorigenesis. However, many human tumors exhibit enhanced HR repair capabilities, consequently endowing tumor cells with resistance to DNA-damaging chemotherapy and radiotherapy. This review summarizes the role of RNA methylation in HR repair and therapeutic resistance in human tumors. We also analyzed the interactions between RNA methylation and other HR-modulating modifications including histone acetylation, histone deacetylation, ubiquitination, deubiquitination, protein arginine methylation, and gene transcription. This review proposes that targeting RNA methylation is a promising approach to overcoming HR-mediated therapeutic resistance.
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Affiliation(s)
- Yu Bai
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, China; Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Hanlin Zhao
- Department of Ion Channel Pharmacology, School of Pharmacy, China Medical University, Shenyang, China
| | - Haijun Liu
- Department of Thoracic Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Wei Wang
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, China.
| | - Hongming Dong
- Department of Anatomy, College of Basic Medical Science, China Medical University, Shenyang, China.
| | - Chenghai Zhao
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, China.
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10
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Dvořáček L, Marková J, Holoubek A, Grebeňová D, Kundrát D, Kuželová K, Schwarz J. A novel germline hyperactivating JAK2 mutation L604F. Ann Hematol 2023; 102:2725-2734. [PMID: 37639050 PMCID: PMC10492870 DOI: 10.1007/s00277-023-05423-y] [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: 06/30/2023] [Accepted: 08/19/2023] [Indexed: 08/29/2023]
Abstract
Somatic JAK2 mutations are the main molecular cause of the vast majority of polycythemia vera (PV) cases. According to a recent structural model, the prevalent acquired V617F mutation improves the stability of the JAK2 dimer, thereby enhancing the constitutive JAK2 kinase activity. Germline JAK2 mutations usually do not largely alter JAK2 signaling, although they may modulate the impact of V617F. We found an unusual germline JAK2 mutation L604F in homozygous form in a young PV patient, along with a low allele burden JAK2 V617F mutation, and in her apparently healthy sister. Their father with a PV-like disease had L604F in a heterozygous state, without V617F. The functional consequences of JAK2 L604Fmutation were compared with those induced by V617F in two different in vitro model systems: (i) HEK293T cells were transfected with plasmids for exogenous JAK2-GFP expression, and (ii) endogenous JAK2 modifications were introduced into HeLa cells using CRISPR/Cas9. Both mutations significantly increased JAK2 constitutive activity in transfected HEK293T cells. In the second model, JAK2 modification resulted in reduced total JAK2 protein levels. An important difference was also detected: as described previously, the effect of V617F on JAK2 kinase activity was abrogated in the absence of the aromatic residue F595. In contrast, JAK2 hyperactivation by L604F was only partially inhibited by the F595 change to alanine. We propose that the L604F mutation increases the probability of spontaneous JAK2 dimer formation, which is physiologically mediated by F595. In addition, L604F may contribute to dimer stabilization similarly to V617F.
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Affiliation(s)
- Lukáš Dvořáček
- Department of Proteomics, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Jana Marková
- Clinical Department, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Aleš Holoubek
- Department of Proteomics, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Dana Grebeňová
- Department of Proteomics, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - David Kundrát
- Department of Genomics, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Kateřina Kuželová
- Department of Proteomics, Institute of Hematology and Blood Transfusion, Prague, Czech Republic.
| | - Jiří Schwarz
- Clinical Department, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
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11
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Vainchenker W, Yahmi N, Havelange V, Marty C, Plo I, Constantinescu SN. Recent advances in therapies for primary myelofibrosis. Fac Rev 2023; 12:23. [PMID: 37771602 PMCID: PMC10523375 DOI: 10.12703/r/12-23] [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] [Indexed: 09/30/2023] Open
Abstract
Primary myelofibrosis (PMF), polycythemia vera (PV) and essential thrombocythemia (ET) form the classical BCR-ABL1-negative myeloproliferative neoplasms (MPNs) that are driven by a constitutive activation of JAK2 signaling. PMF as well as secondary MF (post-ET and post-PV MF) are the most aggressive MPNs. Presently, there is no curative treatment, except allogenic hematopoietic stem cell transplantation. JAK inhibitors, essentially ruxolitinib, are the therapy of reference for intermediate and high-risk MF. However, presently the current JAK inhibitors behave mainly as anti-inflammatory drugs, improving general symptoms and spleen size without major impact on disease progression. A better understanding of the genetics of MF, the biology of its leukemic stem cells (LSCs), the mechanisms of fibrosis and of cytopenia and the role of inflammatory cytokines has led to new approaches with the development of numerous therapeutic agents that target epigenetic regulation, telomerase, apoptosis, cell cycle, cytokines and signaling. Furthermore, the use of a new less toxic form of interferon-α has been revived, as it is presently one of the only molecules that targets the mutated clone. These new approaches have different aims: (a) to provide alternative therapy to JAK inhibition; (b) to correct cytopenia; and (c) to inhibit fibrosis development. However, the main important goal is to find new disease modifier treatments, which will profoundly modify the progression of the disease without major toxicity. Presently the most promising approaches consist of the inhibition of telomerase and the combination of JAK2 inhibitors (ruxolitinib) with either a BCL2/BCL-xL or BET inhibitor. Yet, the most straightforward future approaches can be considered to be the development of and/or selective inhibition of JAK2V617F and the targeting MPL and calreticulin mutants by immunotherapy. It can be expected that the therapy of MF will be significantly improved in the coming years.
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Affiliation(s)
- William Vainchenker
- INSERM, UMR1287, Gustave Roussy, Villejuif, France
- Université Paris-Saclay, UMR1287, Gustave Roussy, Villejuif, France
- Gustave Roussy, UMR1287, Villejuif, France
| | - Nasrine Yahmi
- INSERM, UMR1287, Gustave Roussy, Villejuif, France
- Université Paris-Saclay, UMR1287, Gustave Roussy, Villejuif, France
- Gustave Roussy, UMR1287, Villejuif, France
| | - Violaine Havelange
- de Duve Institute, Université catholique de Louvain, Brussels, Belgium
- Cliniques universitaires Saint Luc, Department of Hematology, Université Catholique de Louvain, Brussels, Belgium
| | - Caroline Marty
- INSERM, UMR1287, Gustave Roussy, Villejuif, France
- Université Paris-Saclay, UMR1287, Gustave Roussy, Villejuif, France
- Gustave Roussy, UMR1287, Villejuif, France
| | - Isabelle Plo
- INSERM, UMR1287, Gustave Roussy, Villejuif, France
- Université Paris-Saclay, UMR1287, Gustave Roussy, Villejuif, France
- Gustave Roussy, UMR1287, Villejuif, France
| | - Stefan N Constantinescu
- de Duve Institute, Université catholique de Louvain, Brussels, Belgium
- Ludwig Institute for Cancer Research, Brussels, Belgium
- WEL Research Institute, WELBIO Department, Wavre, Belgium
- Ludwig Institute for Cancer Research, Nuffield Department of Medicine, Oxford University, Oxford, United Kingdom
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12
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Sloan SL, Brown F, Long M, Weigel C, Koirala S, Chung JH, Pray B, Villagomez L, Hinterschied C, Sircar A, Helmig-Mason J, Prouty A, Brooks E, Youssef Y, Hanel W, Parekh S, Chan WK, Chen Z, Lapalombella R, Sehgal L, Vaddi K, Scherle P, Chen-Kiang S, Di Liberto M, Elemento O, Meydan C, Foox J, Butler D, Mason CE, Baiocchi RA, Alinari L. PRMT5 supports multiple oncogenic pathways in mantle cell lymphoma. Blood 2023; 142:887-902. [PMID: 37267517 PMCID: PMC10517215 DOI: 10.1182/blood.2022019419] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 04/10/2023] [Accepted: 05/11/2023] [Indexed: 06/04/2023] Open
Abstract
Mantle cell lymphoma (MCL) is an incurable B-cell malignancy with an overall poor prognosis, particularly for patients that progress on targeted therapies. Novel, more durable treatment options are needed for patients with MCL. Protein arginine methyltransferase 5 (PRMT5) is overexpressed in MCL and plays an important oncogenic role in this disease via epigenetic and posttranslational modification of cell cycle regulators, DNA repair genes, components of prosurvival pathways, and RNA splicing regulators. The mechanism of targeting PRMT5 in MCL remains incompletely characterized. Here, we report on the antitumor activity of PRMT5 inhibition in MCL using integrated transcriptomics of in vitro and in vivo models of MCL. Treatment with a selective small-molecule inhibitor of PRMT5, PRT-382, led to growth arrest and cell death and provided a therapeutic benefit in xenografts derived from patients with MCL. Transcriptional reprograming upon PRMT5 inhibition led to restored regulatory activity of the cell cycle (p-RB/E2F), apoptotic cell death (p53-dependent/p53-independent), and activation of negative regulators of B-cell receptor-PI3K/AKT signaling (PHLDA3, PTPROt, and PIK3IP1). We propose pharmacologic inhibition of PRMT5 for patients with relapsed/refractory MCL and identify MTAP/CDKN2A deletion and wild-type TP53 as biomarkers that predict a favorable response. Selective targeting of PRMT5 has significant activity in preclinical models of MCL and warrants further investigation in clinical trials.
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Affiliation(s)
- Shelby L. Sloan
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Fiona Brown
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Mackenzie Long
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Christoph Weigel
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Shirsha Koirala
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Ji-Hyun Chung
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Betsy Pray
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH
| | - Lynda Villagomez
- Division of Hematology and Oncology, Department of Pediatrics, The Ohio State University and Nationwide Children’s Hospital, Columbus, OH
| | - Claire Hinterschied
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Anuvrat Sircar
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - JoBeth Helmig-Mason
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Alexander Prouty
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Eric Brooks
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Youssef Youssef
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Walter Hanel
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Samir Parekh
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Wing Keung Chan
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Zhengming Chen
- Division of Biostatistics, Department of Population Health Sciences, Weill Cornell Medicine, New York, NY
| | - Rosa Lapalombella
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Lalit Sehgal
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | | | | | - Selina Chen-Kiang
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - Maurizio Di Liberto
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - Olivier Elemento
- Department of Physiology and Biophysics, Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY
| | - Cem Meydan
- Department of Physiology and Biophysics, Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY
| | - Jonathan Foox
- Department of Physiology and Biophysics, Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY
| | - Daniel Butler
- Department of Physiology and Biophysics, Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY
| | - Christopher E. Mason
- Department of Physiology and Biophysics, Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY
| | - Robert A. Baiocchi
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
| | - Lapo Alinari
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH
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13
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Wang Y, Shtylla B, Chou T. Order-of-mutation effects on cancer progression: models for myeloproliferative neoplasm. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.08.16.23294177. [PMID: 37662184 PMCID: PMC10473807 DOI: 10.1101/2023.08.16.23294177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
In some patients with myeloproliferative neoplasms (MPN), two genetic mutations are often found, JAK2 V617F and one in the TET2 gene. Whether or not one mutation is present will influence how the other subsequent mutation affects the regulation of gene expression. When both mutations are present, the order of their occurrence has been shown to influence disease progression and prognosis. We propose a nonlinear ordinary differential equation (ODE), Moran process, and Markov chain models to explain the non-additive and non-commutative mutation effects on recent clinical observations of gene expression patterns, proportions of cells with different mutations, and ages at diagnosis of MPN. These observations consistently shape our modeling framework. Our key proposal is that bistability in gene expression provides a natural explanation for many observed order-of-mutation effects. We also propose potential experimental measurements that can be used to confirm or refute predictions of our models.
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Affiliation(s)
- Yue Wang
- Dept. of Computational Medicine, UCLA, Los Angeles, CA 90095
- Irving Institute for Cancer Dynamics and Department of Statistics, Columbia University, New York, NY 10027
| | - Blerta Shtylla
- Mathematics Department, Pomona College, Claremont, CA, 91711
- Quantitative Systems Pharmacology, Oncology, Pfizer, San Diego, CA 92121
| | - Tom Chou
- Dept. of Computational Medicine, UCLA, Los Angeles, CA 90095
- Dept. of Mathematics, UCLA, Los Angeles, CA 90095
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14
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Wang Y, Shtylla B, Chou T. Order-of-mutation effects on cancer progression: models for myeloproliferative neoplasm. ARXIV 2023:arXiv:2308.09941v1. [PMID: 37645049 PMCID: PMC10462171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
In some patients with myeloproliferative neoplasms (MPN), two genetic mutations are often found, JAK2 V617F and one in the TET2 gene. Whether or not one mutation is present will influence how the other subsequent mutation affects the regulation of gene expression. When both mutations are present, the order of their occurrence has been shown to influence disease progression and prognosis. We propose a nonlinear ordinary differential equation (ODE), Moran process, and Markov chain models to explain the non-additive and non-commutative mutation effects on recent clinical observations of gene expression patterns, proportions of cells with different mutations, and ages at diagnosis of MPN. These observations consistently shape our modeling framework. Our key proposal is that bistability in gene expression provides a natural explanation for many observed order-of-mutation effects. We also propose potential experimental measurements that can be used to confirm or refute predictions of our models.
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Affiliation(s)
- Yue Wang
- Dept. of Computational Medicine, UCLA, Los Angeles, CA 90095
- Irving Institute for Cancer Dynamics and Department of Statistics, Columbia University, New York, NY 10027
| | - Blerta Shtylla
- Mathematics Department, Pomona College, Claremont, CA, 91711
- Quantitative Systems Pharmacology, Oncology, Pfizer, San Diego, CA 92121
| | - Tom Chou
- Dept. of Computational Medicine, UCLA, Los Angeles, CA 90095
- Dept. of Mathematics, UCLA, Los Angeles, CA 90095
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15
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Zhou H, Chang J, Zhang J, Zheng H, Miao X, Mo H, Sun J, Jia Q, Qi G. PRMT5 activates KLF5 by methylation to facilitate lung cancer. J Cell Mol Med 2023; 28:e17856. [PMID: 37461162 PMCID: PMC10902573 DOI: 10.1111/jcmm.17856] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/05/2023] [Accepted: 07/10/2023] [Indexed: 03/01/2024] Open
Abstract
The highly expressed oncogenic factor Krüppel-like factor 5 (KLF5) promotes various cancerous processes, such as cell growth, survival, anti-apoptosis, migration and metastasis, particularly in lung cancer. Nevertheless, the modifications to KLF5 after translation are poorly understood. Protein arginine methyltransferase 5 (PRMT5) is considered as an oncogene known to be involved in different types of carcinomas, including lung cancer. Here, we show that the expression levels of PRMT5 and KLF5 are highly expressed lung cancer. Moreover, PRMT5 interacts with KLF5 and facilitates the dimethylation of KLF5 at Arginine 41 in a manner that depends on methyltransferase activity. Downregulation or pharmaceutical suppression of PRMT5 reduces the expression of KLF5 and its downstream targets both in vitro and in vivo. Mechanistically, the dimethylation of KLF5 by PRMT5 promotes the maintenance and proliferation of lung cancer cells at least partially by stabilising KLF5 via regulation of the Akt/GSK3β signalling axis. In summary, PRMT5 methylates KLF5 to prevent its degradation, thereby promoting the maintenance and proliferation of lung cancer cells. These results suggest that targeting PRMT5/KLF5 axis may offer a potential therapeutic strategy for lung cancer.
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Affiliation(s)
- Hai Zhou
- Department of Respiratory and Critical Care Medicine, Shidong Hospital of Yangpu District, Shanghai, China
| | - Jing Chang
- Department of Respiratory and Critical Care Medicine, Shidong Hospital of Yangpu District, Shanghai, China
| | - Jingjian Zhang
- Department of Respiratory and Critical Care Medicine, Shidong Hospital of Yangpu District, Shanghai, China
| | - Hongzhen Zheng
- Department of Respiratory and Critical Care Medicine, Shidong Hospital of Yangpu District, Shanghai, China
| | - Xiang Miao
- Department of Respiratory and Critical Care Medicine, Shidong Hospital of Yangpu District, Shanghai, China
| | - Huimin Mo
- Department of Respiratory and Critical Care Medicine, Shidong Hospital of Yangpu District, Shanghai, China
| | - Jie Sun
- Department of Respiratory and Critical Care Medicine, Shidong Hospital of Yangpu District, Shanghai, China
| | - Qin Jia
- Department of Respiratory and Critical Care Medicine, Shidong Hospital of Yangpu District, Shanghai, China
| | - Guangsheng Qi
- Department of Pulmonary and Critical Care Medicine, Second Affiliated Hospital of Naval Medical University, Shanghai, China
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16
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Xue C, Yao Q, Gu X, Shi Q, Yuan X, Chu Q, Bao Z, Lu J, Li L. Evolving cognition of the JAK-STAT signaling pathway: autoimmune disorders and cancer. Signal Transduct Target Ther 2023; 8:204. [PMID: 37208335 DOI: 10.1038/s41392-023-01468-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 04/22/2023] [Indexed: 05/21/2023] Open
Abstract
The Janus kinase (JAK) signal transducer and activator of transcription (JAK-STAT) pathway is an evolutionarily conserved mechanism of transmembrane signal transduction that enables cells to communicate with the exterior environment. Various cytokines, interferons, growth factors, and other specific molecules activate JAK-STAT signaling to drive a series of physiological and pathological processes, including proliferation, metabolism, immune response, inflammation, and malignancy. Dysregulated JAK-STAT signaling and related genetic mutations are strongly associated with immune activation and cancer progression. Insights into the structures and functions of the JAK-STAT pathway have led to the development and approval of diverse drugs for the clinical treatment of diseases. Currently, drugs have been developed to mainly target the JAK-STAT pathway and are commonly divided into three subtypes: cytokine or receptor antibodies, JAK inhibitors, and STAT inhibitors. And novel agents also continue to be developed and tested in preclinical and clinical studies. The effectiveness and safety of each kind of drug also warrant further scientific trials before put into being clinical applications. Here, we review the current understanding of the fundamental composition and function of the JAK-STAT signaling pathway. We also discuss advancements in the understanding of JAK-STAT-related pathogenic mechanisms; targeted JAK-STAT therapies for various diseases, especially immune disorders, and cancers; newly developed JAK inhibitors; and current challenges and directions in the field.
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Affiliation(s)
- Chen Xue
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Qinfan Yao
- Kidney Disease Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xinyu Gu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Qingmiao Shi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xin Yuan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Qingfei Chu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Zhengyi Bao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Juan Lu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
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17
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Cheng Y, Gao Z, Zhang T, Wang Y, Xie X, Han G, Li Y, Yin R, Chen Y, Wang P, Hu J, Zhang T, Guo C, Chai J, Wang J, Cui M, Gao K, Liu W, Yao S, Lu P, Cao Z, Zheng Y, Chang J, Liu Z, Song Q, Li W, Zhou F, Zhang H. Decoding m 6A RNA methylome identifies PRMT6-regulated lipid transport promoting AML stem cell maintenance. Cell Stem Cell 2023; 30:69-85.e7. [PMID: 36574771 DOI: 10.1016/j.stem.2022.12.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 11/02/2022] [Accepted: 12/01/2022] [Indexed: 12/27/2022]
Abstract
N6-methyladenosine (m6A) is a common chemical modification for mammalian mRNA and exhibits high dynamics in various biological processes. However, dynamics of m6A RNA methylome during leukemogenesis remains unknown. Here, we delineate a comprehensive m6A landscape during acute myeloid leukemia (AML) development and identify PRMT6 as a key for maintaining AML stem cells. We observe an obvious change in m6A methylome during leukemogenesis and find that protein arginine methyltransferase PRMT6 and m6A reader IGF2BP2 maintain the function of human and murine leukemia stem cells (LSCs). Genetic deletion or pharmacological inhibition of PRMT6 damages AML development and LSC function. Mechanistically, IGF2BP2 stabilizes PRMT6 mRNA via m6A-mediated manner, which catalyzes H3R2me2a and suppresses lipid transporter MFSD2A expression. PRMT6 loss upregulates MFSD2A expression that increases docosahexaenoic acid levels and impairs LSC maintenance. Collectively, our findings reveal a critical role of PRMT6-MFSD2A signaling axis in AML development and provide a therapeutic strategy for targeting LSCs.
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Affiliation(s)
- Ying Cheng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Medical Research Institute, Wuhan University, Wuhan, China; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Zhuying Gao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Medical Research Institute, Wuhan University, Wuhan, China; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Tiantian Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Medical Research Institute, Wuhan University, Wuhan, China; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Yuhua Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Medical Research Institute, Wuhan University, Wuhan, China
| | - Xueqin Xie
- Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Guoqiang Han
- Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Yashu Li
- Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Rong Yin
- Department of Hematology, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Yilin Chen
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peipei Wang
- Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Jin Hu
- Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Tong Zhang
- Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Chengli Guo
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Medical Research Institute, Wuhan University, Wuhan, China
| | - Jihua Chai
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Medical Research Institute, Wuhan University, Wuhan, China
| | - Jing Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Medical Research Institute, Wuhan University, Wuhan, China
| | - Manman Cui
- Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Kexin Gao
- Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Weidong Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Medical Research Institute, Wuhan University, Wuhan, China
| | - Shuxin Yao
- Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Pengbo Lu
- Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Ziyan Cao
- Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Yanbing Zheng
- Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China
| | - Jiwei Chang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Medical Research Institute, Wuhan University, Wuhan, China
| | - Zheming Liu
- Cancer Center, Renmin Hospital, Wuhan University, Wuhan, China
| | - Qibin Song
- Cancer Center, Renmin Hospital, Wuhan University, Wuhan, China
| | - Weiming Li
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fuling Zhou
- Department of Hematology, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Haojian Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Medical Research Institute, Wuhan University, Wuhan, China; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, China; Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China.
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18
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Sauter C, Simonet J, Guidez F, Dumétier B, Pernon B, Callanan M, Bastie JN, Aucagne R, Delva L. Protein Arginine Methyltransferases as Therapeutic Targets in Hematological Malignancies. Cancers (Basel) 2022; 14:5443. [PMID: 36358861 PMCID: PMC9657843 DOI: 10.3390/cancers14215443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 08/02/2023] Open
Abstract
Arginine methylation is a common post-translational modification affecting protein activity and the transcription of target genes when methylation occurs on histone tails. There are nine protein arginine methyltransferases (PRMTs) in mammals, divided into subgroups depending on the methylation they form on a molecule of arginine. During the formation and maturation of the different types of blood cells, PRMTs play a central role by controlling cell differentiation at the transcriptional level. PRMT enzymatic activity is necessary for many cellular processes in hematological malignancies, such as the activation of cell cycle and proliferation, inhibition of apoptosis, DNA repair processes, RNA splicing, and transcription by methylating histone tails' arginine. Chemical tools have been developed to inhibit the activity of PRMTs and have been tested in several models of hematological malignancies, including primary samples from patients, xenografts into immunodeficient mice, mouse models, and human cell lines. They show a significant effect by reducing cell viability and increasing the overall survival of mice. PRMT5 inhibitors have a strong therapeutic potential, as phase I clinical trials in hematological malignancies that use these molecules show promising results, thus, underlining PRMT inhibitors as useful therapeutic tools for cancer treatment in the future.
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Affiliation(s)
- Camille Sauter
- Inserm U1231, Team Epi2THM, LipSTIC Labex, UFR des Sciences de Santé, Université de Bourgogne, Université Bourgogne Franche-Comté, 21000 Dijon, France
| | - John Simonet
- Inserm U1231, Team Epi2THM, LipSTIC Labex, UFR des Sciences de Santé, Université de Bourgogne, Université Bourgogne Franche-Comté, 21000 Dijon, France
| | - Fabien Guidez
- Inserm U1231, Team Epi2THM, LipSTIC Labex, UFR des Sciences de Santé, Université de Bourgogne, Université Bourgogne Franche-Comté, 21000 Dijon, France
| | - Baptiste Dumétier
- Inserm U1231, Team Epi2THM, LipSTIC Labex, UFR des Sciences de Santé, Université de Bourgogne, Université Bourgogne Franche-Comté, 21000 Dijon, France
| | - Baptiste Pernon
- Inserm U1231, Team Epi2THM, LipSTIC Labex, UFR des Sciences de Santé, Université de Bourgogne, Université Bourgogne Franche-Comté, 21000 Dijon, France
| | - Mary Callanan
- Inserm U1231, Team Epi2THM, LipSTIC Labex, UFR des Sciences de Santé, Université de Bourgogne, Université Bourgogne Franche-Comté, 21000 Dijon, France
- Unit for Innovation in Genetics and Epigenetic in Oncology (IGEO)/CRIGEN Core Facility, University Hospital François Mitterrand, 21000 Dijon, France
| | - Jean-Noël Bastie
- Inserm U1231, Team Epi2THM, LipSTIC Labex, UFR des Sciences de Santé, Université de Bourgogne, Université Bourgogne Franche-Comté, 21000 Dijon, France
- Department of Clinical Hematology, University Hospital François Mitterrand, 21000 Dijon, France
| | - Romain Aucagne
- Inserm U1231, Team Epi2THM, LipSTIC Labex, UFR des Sciences de Santé, Université de Bourgogne, Université Bourgogne Franche-Comté, 21000 Dijon, France
- Unit for Innovation in Genetics and Epigenetic in Oncology (IGEO)/CRIGEN Core Facility, University Hospital François Mitterrand, 21000 Dijon, France
| | - Laurent Delva
- Inserm U1231, Team Epi2THM, LipSTIC Labex, UFR des Sciences de Santé, Université de Bourgogne, Université Bourgogne Franche-Comté, 21000 Dijon, France
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19
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Liu S, Liu Z, Piao C, Zhang Z, Kong C, Yin L, Liu X. Flavokawain A is a natural inhibitor of PRMT5 in bladder cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2022; 41:293. [PMID: 36199122 PMCID: PMC9533510 DOI: 10.1186/s13046-022-02500-4] [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: 07/30/2022] [Accepted: 09/22/2022] [Indexed: 12/02/2022]
Abstract
BACKGROUND Protein arginine methyltransferases (PRMTs) regulate protein biological activity by modulating arginine methylation in cancer and are increasingly recognized as potential drug targets. Inhibitors targeting PRMTs are currently in the early phases of clinical trials and more candidate drugs are needed. Flavokawain A (FKA), extracted from kava plant, has been recognized as a potential chemotherapy drug in bladder cancer (BC), but its action mechanism remains unclear. METHODS We first determined the role of a type II PRMT, PRMT5, in BC tissue samples and performed cytological experiments. We then utilized bioinformatics tools, including computational simulation, virtual screening, molecular docking, and energy analysis, to identify the potential use of PRMT5 inhibitors for BC treatment. In vitro and in vivo co-IP and mutation assays were performed to elucidate the molecular mechanism of PRMT5 inhibitor. Pharmacology experiments like bio-layer interferometry, CETSA, and pull-down assays were further used to provide direct evidence of the complex binding process. RESULTS Among PRMTs, PRMT5 was identified as a therapeutic target for BC. PRMT5 expression in BC was correlated with poor prognosis and manipulating its expression could affect cancer cell growth. Through screening and extensive experimental validation, we recognized that a natural product, FKA, was a small new inhibitor molecule for PRMT5. We noticed that the product could inhibit the action of BC, in vitro and in vivo, by inhibiting PRMT5. We further demonstrated that FKA blocks the symmetric arginine dimethylation of histone H2A and H4 by binding to Y304 and F580 of PRMT5. CONCLUSIONS In summary, our research strongly suggests that PRMT5 is a potential epigenetic therapeutic target in bladder cancer, and that FKA can be used as a targeted inhibitor of PRMT5 for the treatment of bladder cancer.
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Affiliation(s)
- Shuangjie Liu
- grid.412636.40000 0004 1757 9485Department of Urology, The First Hospital of China Medical University, Shenyang, 110001 Liaoning China
| | - Zhuonan Liu
- grid.412636.40000 0004 1757 9485Department of Urology, The First Hospital of China Medical University, Shenyang, 110001 Liaoning China
| | - Chiyuan Piao
- grid.412636.40000 0004 1757 9485Department of Urology, The First Hospital of China Medical University, Shenyang, 110001 Liaoning China
| | - Zhe Zhang
- grid.412636.40000 0004 1757 9485Department of Urology, The First Hospital of China Medical University, Shenyang, 110001 Liaoning China
| | - Chuize Kong
- grid.412636.40000 0004 1757 9485Department of Urology, The First Hospital of China Medical University, Shenyang, 110001 Liaoning China
| | - Lei Yin
- grid.412636.40000 0004 1757 9485Department of Urology, The First Hospital of China Medical University, Shenyang, 110001 Liaoning China
| | - Xi Liu
- grid.412636.40000 0004 1757 9485Department of Urology, The First Hospital of China Medical University, Shenyang, 110001 Liaoning China
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20
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Yuan HF, Zhao M, Zhao LN, Yun HL, Yang G, Geng Y, Wang YF, Zheng W, Yuan Y, Song TQ, Niu JQ, Zhang XD. PRMT5 confers lipid metabolism reprogramming, tumour growth and metastasis depending on the SIRT7-mediated desuccinylation of PRMT5 K387 in tumours. Acta Pharmacol Sin 2022; 43:2373-2385. [PMID: 35046516 PMCID: PMC9433386 DOI: 10.1038/s41401-021-00841-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 12/09/2021] [Indexed: 12/14/2022] Open
Abstract
The protein arginine methyltransferase 5 (PRMT5), which is highly expressed in tumour tissues, plays a crucial role in cancer development. However, the mechanism by which PRMT5 promotes cancer growth is poorly understood. Here, we report that PRMT5 contributes to lipid metabolism reprogramming, tumour growth and metastasis depending on the SIRT7-mediated desuccinylation of PRMT5 K387 in tumours. Mass spectrometric analysis identified PRMT5 lysine 387 as its succinylation site. Moreover, the desuccinylation of PRMT5 K387 enhances the methyltransferase activity of PRMT5. SIRT7 catalyses the desuccinylation of PRMT5 in cells. The SIRT7-mediated dessuccinylation of PRMT5 lysine 387 fails to bind to STUB1, decreasing PRMT5 ubiquitination and increasing the interaction between PRMT5 and Mep50, which promotes the formation of the PRMT5-Mep50 octamer. The PRMT5-Mep50 octamer increases PRMT5 methyltransferase activity, leading to arginine methylation of SREBP1a. The symmetric dimethylation of SREBP1a increases the levels of cholesterol, fatty acid, and triglyceride biogenesis in the cells, escaping degradation through the ubiquitin-proteasome pathway. Functionally, the desuccinylation of PRMT5 K387 promotes lipid metabolism reprogramming, tumour growth and metastasis in vitro and in vivo in tumours.
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Affiliation(s)
- Hong-Feng Yuan
- Department of Gastrointestinal Cancer Biology, Tianjin Cancer Institute, Liver Cancer Center, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, 300060, China
- Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Man Zhao
- Department of Gastrointestinal Cancer Biology, Tianjin Cancer Institute, Liver Cancer Center, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, 300060, China
- Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Li-Na Zhao
- Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Hao-Lin Yun
- Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Guang Yang
- Department of Gastrointestinal Cancer Biology, Tianjin Cancer Institute, Liver Cancer Center, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Yu Geng
- Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Yu-Fei Wang
- Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Wei Zheng
- Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Ying Yuan
- Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Tian-Qiang Song
- Department of Hepatobiliary Cancer, Liver Cancer Research Center, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China.
| | - Jun-Qi Niu
- Department of Hepatology, the First Hospital, Jilin University, Jilin, 130021, China.
| | - Xiao-Dong Zhang
- Department of Gastrointestinal Cancer Biology, Tianjin Cancer Institute, Liver Cancer Center, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, 300060, China.
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21
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Zhang JB, Jin HL, Feng XY, Feng SL, Zhu WT, Nan HM, Yuan ZW. The combination of Lonicerae Japonicae Flos and Forsythiae Fructus herb-pair alleviated inflammation in liver fibrosis. Front Pharmacol 2022; 13:984611. [PMID: 36059967 PMCID: PMC9437263 DOI: 10.3389/fphar.2022.984611] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 07/25/2022] [Indexed: 11/13/2022] Open
Abstract
Objective: To explore the active components and epigenetic regulation mechanism underlying the anti-inflammatory effects of Lonicerae Japonicae Flos and Forsythiae Fructus herb-pair (LFP) in carbon tetrachloride (CCl4)-induced rat liver fibrosis. Methods: The main active ingredients and disease-related gene targets of LFP were determined using TCMSP and UniProt, and liver fibrosis disease targets were screened in the GeneCards database. A network was constructed with Cytoscape 3.8.0 and the STRING database, and potential protein functions were analyzed using bioinformatics analysis. Based on these analyses, we determined the main active ingredients of LFP and evaluated their effects in a CCl4-induced rat liver fibrosis model. Serum biochemical indices were measured using commercial kits, hepatocyte tissue damage and collagen deposition were evaluated by histopathological studies, and myofibroblast activation and inflammation were detected by reverse transcription-polymerase chain reaction (RT-PCR) and western blotting. High-performance liquid chromatography-mass spectrometry was performed to determine the levels of homocysteine, reduced glutathione, and oxidized glutathione, which are involved in inflammation and oxidative stress. Results: The main active components of LFP were quercetin, kaempferol, and luteolin, and its main targets were α-smooth muscle actin, cyclooxygenase-2, formyl-peptide receptor-2, prostaglandin-endoperoxide synthase 1, nuclear receptor coactivator-2, interleukinβ, tumor necrosis factor α, CXC motif chemokine ligand 14, and transforming growth factor β1. A combination of quercetin, kaempferol, and luteolin alleviated the symptoms of liver fibrosis. Conclusion: The results of this study support the role of LFP in the treatment of liver fibrosis, and reveal that LFP reduces collagen formation, inflammation, and oxidative stress. This study suggests a potential mechanism of action of LFP in the treatment of liver fibrosis.
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Affiliation(s)
- Jing-Bei Zhang
- Collage of Chinese Medicine, Changchun University of Chinese Medicine, Jilin, China
| | - Hong-Liu Jin
- Department of Pharmacy, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangzhou Medical University, Guangzhou, China
| | - Xiao-Ying Feng
- Department of Pharmacy, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangzhou Medical University, Guangzhou, China
| | - Sen-ling Feng
- Department of Pharmacy, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangzhou Medical University, Guangzhou, China
| | - Wen-Ting Zhu
- Department of Pharmacy, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangzhou Medical University, Guangzhou, China
| | - Hong-Mei Nan
- Collage of Chinese Medicine, Changchun University of Chinese Medicine, Jilin, China
- Department of Encephalopathy, Affiliated Hospital of Changchun University of Chinese Medicine, Jilin, China
- *Correspondence: Hong-Mei Nan, ; Zhong-Wen Yuan,
| | - Zhong-Wen Yuan
- Department of Pharmacy, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangzhou Medical University, Guangzhou, China
- *Correspondence: Hong-Mei Nan, ; Zhong-Wen Yuan,
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22
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Li L, Kim JH, Lu W, Williams DM, Kim J, Cope L, Rampal RK, Koche RP, Xian L, Luo LZ, Vasiljevic M, Matson DR, Zhao ZJ, Rogers O, Stubbs MC, Reddy K, Romero AR, Psaila B, Spivak JL, Moliterno AR, Resar LMS. HMGA1 chromatin regulators induce transcriptional networks involved in GATA2 and proliferation during MPN progression. Blood 2022; 139:2797-2815. [PMID: 35286385 PMCID: PMC9074401 DOI: 10.1182/blood.2021013925] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 02/18/2022] [Indexed: 11/20/2022] Open
Abstract
Myeloproliferative neoplasms (MPNs) transform to myelofibrosis (MF) and highly lethal acute myeloid leukemia (AML), although the actionable mechanisms driving progression remain elusive. Here, we elucidate the role of the high mobility group A1 (HMGA1) chromatin regulator as a novel driver of MPN progression. HMGA1 is upregulated in MPN, with highest levels after transformation to MF or AML. To define HMGA1 function, we disrupted gene expression via CRISPR/Cas9, short hairpin RNA, or genetic deletion in MPN models. HMGA1 depletion in JAK2V617F AML cell lines disrupts proliferation, clonogenicity, and leukemic engraftment. Surprisingly, loss of just a single Hmga1 allele prevents progression to MF in JAK2V617F mice, decreasing erythrocytosis, thrombocytosis, megakaryocyte hyperplasia, and expansion of stem and progenitors, while preventing splenomegaly and fibrosis within the spleen and BM. RNA-sequencing and chromatin immunoprecipitation sequencing revealed HMGA1 transcriptional networks and chromatin occupancy at genes that govern proliferation (E2F, G2M, mitotic spindle) and cell fate, including the GATA2 master regulatory gene. Silencing GATA2 recapitulates most phenotypes observed with HMGA1 depletion, whereas GATA2 re-expression partially rescues leukemogenesis. HMGA1 transactivates GATA2 through sequences near the developmental enhancer (+9.5), increasing chromatin accessibility and recruiting active histone marks. Further, HMGA1 transcriptional networks, including proliferation pathways and GATA2, are activated in human MF and MPN leukemic transformation. Importantly, HMGA1 depletion enhances responses to the JAK2 inhibitor, ruxolitinib, preventing MF and prolonging survival in murine models of JAK2V617F AML. These findings illuminate HMGA1 as a key epigenetic switch involved in MPN transformation and a promising therapeutic target to treat or prevent disease progression.
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Affiliation(s)
- Liping Li
- Division of Hematology, Department of Medicine, and
| | | | - Wenyan Lu
- Division of Hematology, Department of Medicine, and
| | | | - Joseph Kim
- Division of Hematology, Department of Medicine, and
| | - Leslie Cope
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Raajit K Rampal
- Human Oncology and Pathogenesis Program, Leukemia Service, Department of Medicine, Center for Epigenetics Research, Memorial Sloan Kettering Cancer Institute, New York, NY
| | - Richard P Koche
- Human Oncology and Pathogenesis Program, Leukemia Service, Department of Medicine, Center for Epigenetics Research, Memorial Sloan Kettering Cancer Institute, New York, NY
| | | | - Li Z Luo
- Division of Hematology, Department of Medicine, and
| | | | - Daniel R Matson
- Blood Cancer Research Institute, Department of Cell and Regenerative Biology, UW Carbone Cancer Center, University of Wisconsin School of Medicine, Madison, WI
| | - Zhizhuang Joe Zhao
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | | | | | - Karen Reddy
- Department of Biologic Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Antonio-Rodriguez Romero
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institutes of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, UK; and
| | - Bethan Psaila
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine and National Institutes of Health Research (NIHR) Oxford Biomedical Research Centre, University of Oxford, Oxford, UK; and
| | - Jerry L Spivak
- Division of Hematology, Department of Medicine, and
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - Linda M S Resar
- Division of Hematology, Department of Medicine, and
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD
- Cellular and Molecular Medicine Graduate Program and
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD
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23
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Yang Z, Xiao T, Li Z, Zhang J, Chen S. Novel Chemicals Derived from Tadalafil Exhibit PRMT5 Inhibition and Promising Activities against Breast Cancer. Int J Mol Sci 2022; 23:ijms23094806. [PMID: 35563196 PMCID: PMC9103191 DOI: 10.3390/ijms23094806] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/24/2022] [Accepted: 04/25/2022] [Indexed: 02/04/2023] Open
Abstract
Breast cancer seriously endangers women’s health worldwide. Protein arginine methyltransferase 5 (PRMT5) is highly expressed in breast cancer and represents a potential druggable target for breast cancer treatment. However, because the currently available clinical PRMT5 inhibitors are relatively limited, there is an urgent need to develop new PRMT5 inhibitors. Our team previously found that the FDA-approved drug tadalafil can act as a PRMT5 inhibitor and enhance the sensitivity of breast cancer patients to doxorubicin treatment. To further improve the binding specificity of tadalafil to PRMT5, we chemically modified tadalafil, and designed three compounds, A, B, and C, based on the PRMT5 protein structure. These three compounds could bind to PRMT5 through different binding modes and inhibit histone arginine methylation. They arrested the proliferation and triggered the apoptosis of breast cancer cells in vitro and also promoted the antitumor effects of the chemotherapy drugs cisplatin, doxorubicin, and olaparib in combination regimens. Among them, compound A possessed the highest potency. Finally, the anti-breast cancer effects of PRMT5 inhibitor A and its ability to enhance chemosensitivity were further verified in a xenograft mouse model. These results indicate that the new PRMT5 inhibitors A, B, and C may be potential candidates for breast cancer treatment.
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Affiliation(s)
- Ziyan Yang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi’an 710032, China; (Z.Y.); (T.X.)
| | - Tian Xiao
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi’an 710032, China; (Z.Y.); (T.X.)
| | - Zezhi Li
- Department of Pharmacy, School of Chemistry & Pharmacy, Northwest A&F University, Xianyang 712100, China;
| | - Jian Zhang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi’an 710032, China; (Z.Y.); (T.X.)
- Correspondence: (J.Z.); (S.C.)
| | - Suning Chen
- Department of Pharmacy, Fourth Military Medical University, Xi’an 710032, China
- Correspondence: (J.Z.); (S.C.)
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24
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Molecular Pathogenesis of Myeloproliferative Neoplasms: From Molecular Landscape to Therapeutic Implications. Int J Mol Sci 2022; 23:ijms23094573. [PMID: 35562964 PMCID: PMC9100530 DOI: 10.3390/ijms23094573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/15/2022] [Accepted: 04/19/2022] [Indexed: 12/27/2022] Open
Abstract
Despite distinct clinical entities, the myeloproliferative neoplasms (MPN) share morphological similarities, propensity to thrombotic events and leukemic evolution, and a complex molecular pathogenesis. Well-known driver mutations, JAK2, MPL and CALR, determining constitutive activation of JAK-STAT signaling pathway are the hallmark of MPN pathogenesis. Recent data in MPN patients identified the presence of co-occurrence somatic mutations associated with epigenetic regulation, messenger RNA splicing, transcriptional mechanism, signal transduction, and DNA repair mechanism. The integration of genetic information within clinical setting is already improving patient management in terms of disease monitoring and prognostic information on disease progression. Even the current therapeutic approaches are limited in disease-modifying activity, the expanding insight into the genetic basis of MPN poses novel candidates for targeted therapeutic approaches. This review aims to explore the molecular landscape of MPN, providing a comprehensive overview of the role of drive mutations and additional mutations, their impact on pathogenesis as well as their prognostic value, and how they may have future implications in therapeutic management.
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25
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Chifotides HT, Bose P, Masarova L, Pemmaraju N, Verstovsek S. SOHO State of the Art Updates and Next Questions: Novel Therapies in Development for Myelofibrosis. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2022; 22:210-223. [PMID: 34840087 DOI: 10.1016/j.clml.2021.10.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/05/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
Myeloproliferative neoplasms research has entered a dynamic and exciting era as we witness exponential growth of novel agents in advanced/early phase clinical trials for myelofibrosis (MF). Building on the success and pivotal role of ruxolitinib, many novel agents, spanning a wide range of mechanisms/targets (epigenetic regulation, apoptotic/intracellular signaling pathways, telomerase, bone marrow fibrosis) are in clinical development; several are studied in registrational trials and hold great potential to expand the therapeutic arsenal/shift the treatment paradigm if regulatory approval is granted. Insight into MF pathogenesis and its molecular underpinnings, preclinical studies demonstrating synergism of ruxolitinib with investigational agents, urgent unmet clinical needs (cytopenias, loss of response to JAK inhibitors); and progressive disease fueled the rapid rise of innovative therapeutics. New strategies include pairing ruxolitinib with erythroid maturation agents to manage anemia (luspatercept), designing rational combinations with ruxolitinib to boost responses in both the frontline and suboptimal response settings (pelabresib, navitoclax, parsaclisib), treatment with non-JAK inhibitor monotherapy in the second-line setting (navtemadlin, imetelstat), novel JAK inhibitors tailored to subgroups with challenging unmet needs (momelotinib and pacritinib for anemia and thrombocytopenia, respectively); and agents potentially enhancing longevity (imetelstat). Beyond typical endpoints evaluated in MF clinical trials (spleen volume reduction ≥ 35%, total symptom score reduction ≥ 50%) thus far, emerging endpoints include overall survival, progression-free survival, transfusion independence, anemia benefits, bone marrow fibrosis and driver mutation allele burden reduction. Novel biomarkers and additional clinical features are being sought to assess new agents and tailor emerging therapies to appropriate patients. New strategies are needed to optimize the design of clinical trials comparing novel combinations to standard agent monotherapy.
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Affiliation(s)
- Helen T Chifotides
- Department of Leukemia, The University of Texas, MD Anderson Cancer Center, Houston, TX
| | - Prithviraj Bose
- Department of Leukemia, The University of Texas, MD Anderson Cancer Center, Houston, TX
| | - Lucia Masarova
- Department of Leukemia, The University of Texas, MD Anderson Cancer Center, Houston, TX
| | - Naveen Pemmaraju
- Department of Leukemia, The University of Texas, MD Anderson Cancer Center, Houston, TX
| | - Srdan Verstovsek
- Department of Leukemia, The University of Texas, MD Anderson Cancer Center, Houston, TX.
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26
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Dansu DK, Liang J, Selcen I, Zheng H, Moore DF, Casaccia P. PRMT5 Interacting Partners and Substrates in Oligodendrocyte Lineage Cells. Front Cell Neurosci 2022; 16:820226. [PMID: 35370564 PMCID: PMC8968030 DOI: 10.3389/fncel.2022.820226] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/04/2022] [Indexed: 11/23/2022] Open
Abstract
The protein arginine methyl transferase PRMT5 is an enzyme expressed in oligodendrocyte lineage cells and responsible for the symmetric methylation of arginine residues on histone tails. Previous work from our laboratory identified PRMT5 as critical for myelination, due to its transcriptional regulation of genes involved in survival and early stages of differentiation. However, besides its nuclear localization, PRMT5 is found at high levels in the cytoplasm of several cell types, including oligodendrocyte progenitor cells (OPCs) and yet, its interacting partners in this lineage, remain elusive. By using mass spectrometry on protein eluates from extracts generated from primary oligodendrocyte lineage cells and immunoprecipitated with PRMT5 antibodies, we identified 1196 proteins as PRMT5 interacting partners. These proteins were related to molecular functions such as RNA binding, ribosomal structure, cadherin and actin binding, nucleotide and protein binding, and GTP and GTPase activity. We then investigated PRMT5 substrates using iTRAQ-based proteomics on cytosolic and nuclear protein extracts from CRISPR-PRMT5 knockdown immortalized oligodendrocyte progenitors compared to CRISPR-EGFP controls. This analysis identified a similar number of peptides in the two subcellular fractions and a total number of 57 proteins with statistically decreased symmetric methylation of arginine residues in the CRISPR-PRMT5 knockdown compared to control. Several PRMT5 substrates were in common with cancer cell lines and related to RNA processing, splicing and transcription. In addition, we detected ten oligodendrocyte lineage specific substrates, corresponding to proteins with high expression levels in neural tissue. They included: PRC2C, a proline-rich protein involved in methyl-RNA binding, HNRPD an RNA binding protein involved in regulation of RNA stability, nuclear proteins involved in transcription and other proteins related to migration and actin cytoskeleton. Together, these results highlight a cell-specific role of PRMT5 in OPC in regulating several other cellular processes, besides RNA splicing and metabolism.
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Affiliation(s)
- David K. Dansu
- Neuroscience Initiative, Advanced Science Research Center, CUNY, New York, NY, United States,Graduate Program in Biochemistry, The Graduate Center of the City University of New York, New York, NY, United States
| | - Jialiang Liang
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, United States,Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Ipek Selcen
- Neuroscience Initiative, Advanced Science Research Center, CUNY, New York, NY, United States,Graduate Program in Biochemistry, The Graduate Center of the City University of New York, New York, NY, United States
| | - Haiyan Zheng
- Center for Advanced Biotechnology and Medicine, Piscataway, NJ, United States,Department of Biochemistry and Molecular Biology, Robert-Wood Johnson Medical School, Rutgers Biomedical and Health Sciences, Piscataway, NJ, United States
| | - Dirk F. Moore
- Department of Biostatistics, School of Public Health, Rutgers, The State University of New Jersey, Piscataway, NJ, United States
| | - Patrizia Casaccia
- Neuroscience Initiative, Advanced Science Research Center, CUNY, New York, NY, United States,Graduate Program in Biochemistry, The Graduate Center of the City University of New York, New York, NY, United States,*Correspondence: Patrizia Casaccia,
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Bochicchio MT, Di Battista V, Poggio P, Carrà G, Morotti A, Brancaccio M, Lucchesi A. Understanding Aberrant Signaling to Elude Therapy Escape Mechanisms in Myeloproliferative Neoplasms. Cancers (Basel) 2022; 14:cancers14040972. [PMID: 35205715 PMCID: PMC8870427 DOI: 10.3390/cancers14040972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 02/01/2023] Open
Abstract
Aberrant signaling in myeloproliferative neoplasms may arise from alterations in genes coding for signal transduction proteins or epigenetic regulators. Both mutated and normal cells cooperate, altering fragile balances in bone marrow niches and fueling persistent inflammation through paracrine or systemic signals. Despite the hopes placed in targeted therapies, myeloid proliferative neoplasms remain incurable diseases in patients not eligible for stem cell transplantation. Due to the emergence of drug resistance, patient management is often very difficult in the long term. Unexpected connections among signal transduction pathways highlighted in neoplastic cells suggest new strategies to overcome neoplastic cell adaptation.
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Affiliation(s)
- Maria Teresa Bochicchio
- Biosciences Laboratory, IRCCS Istituto Scientifico Romagnolo per lo Studio dei Tumori (IRST) “Dino Amadori”, 47014 Meldola, Italy;
| | - Valeria Di Battista
- Hematology Unit, IRCCS Istituto Scientifico Romagnolo per lo Studio dei Tumori (IRST) “Dino Amadori”, 47014 Meldola, Italy;
| | - Pietro Poggio
- Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy;
| | - Giovanna Carrà
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Italy;
| | - Alessandro Morotti
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Italy;
- Correspondence: (A.M.); (M.B.); (A.L.)
| | - Mara Brancaccio
- Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy;
- Correspondence: (A.M.); (M.B.); (A.L.)
| | - Alessandro Lucchesi
- Hematology Unit, IRCCS Istituto Scientifico Romagnolo per lo Studio dei Tumori (IRST) “Dino Amadori”, 47014 Meldola, Italy;
- Correspondence: (A.M.); (M.B.); (A.L.)
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28
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Yang X, Zeng Z, Jie X, Wang Y, Han J, Zheng Z, Li J, Liu H, Dong X, Wu G, Xu S. Arginine methyltransferase PRMT5 methylates and destabilizes Mxi1 to confer radioresistance in non-small cell lung cancer. Cancer Lett 2022; 532:215594. [PMID: 35149174 DOI: 10.1016/j.canlet.2022.215594] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/26/2022] [Accepted: 02/06/2022] [Indexed: 11/25/2022]
Abstract
Radioresistance is regarded as the main cause of local recurrence and distant metastasis in non-small cell lung cancer. However, the underlying mechanisms of radioresistance remains incompletely understood. In this study, we find that the arginine methyltransferase PRMT5 interacts with and methylates Mxi1, which promotes the binding of the β-Trcp ligase to Mxi1, facilitating the ubiquitination and degradation of Mxi1 in lung cancer. Furthermore, genetic blockade of PRMT5 impairs DNA damage repair and enhances lung cancer radiosensitivity in vitro and in vivo, and these phenotypes are partially reversed by Mxi1 silencing. More importantly, pharmacological inhibition of PRMT5 with the specific inhibitor EPZ015666 leads to extraordinary radiosensitization in vitro and in vivo in lung cancer. Altogether, our data indicate that PRMT5 methylates and destabilizes Mxi1 to confer radioresistance, suggesting that PRMT5 may be a promising radiosensitization target in non-small cell lung cancer.
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Affiliation(s)
- Xijie Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zhen Zeng
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiaohua Jie
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ye Wang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jun Han
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zhikun Zheng
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jinsong Li
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hongli Liu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiaorong Dong
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Gang Wu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Shuangbing Xu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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29
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Bader MS, Meyer SC. JAK2 in Myeloproliferative Neoplasms: Still a Protagonist. Pharmaceuticals (Basel) 2022; 15:ph15020160. [PMID: 35215273 PMCID: PMC8874480 DOI: 10.3390/ph15020160] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/25/2022] [Accepted: 01/26/2022] [Indexed: 02/01/2023] Open
Abstract
The discovery of the activating V617F mutation in Janus kinase 2 (JAK2) has been decisive for the understanding of myeloproliferative neoplasms (MPN). Activated JAK2 signaling by JAK2, CALR, and MPL mutations has become a focus for the development of targeted therapies for patients with MPN. JAK2 inhibitors now represent a standard of clinical care for certain forms of MPN and offer important benefits for MPN patients. However, several key aspects remain unsolved regarding the targeted therapy of MPN with JAK2 inhibitors, such as reducing the MPN clone and how to avoid or overcome a loss of response. Here, we summarize the current knowledge on the structure and signaling of JAK2 as central elements of MPN pathogenesis and feature benefits and limitations of therapeutic JAK2 targeting in MPN.
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Affiliation(s)
| | - Sara Christina Meyer
- Division of Hematology, University Hospital Basel, CH-4031 Basel, Switzerland;
- Department of Biomedicine, University Hospital Basel and University of Basel, CH-4031 Basel, Switzerland
- Correspondence:
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30
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Pandey G, Kuykendall AT, Reuther GW. JAK2 inhibitor persistence in MPN: uncovering a central role of ERK activation. Blood Cancer J 2022; 12:13. [PMID: 35082276 PMCID: PMC8792018 DOI: 10.1038/s41408-022-00609-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/04/2022] [Accepted: 01/06/2022] [Indexed: 11/22/2022] Open
Abstract
The Philadelphia chromosome negative myeloproliferative neoplasms, including polycythemia vera, essential thrombocytosis, and myelofibrosis, are driven by hyper activation of the JAK2 tyrosine kinase, the result of mutations in three MPN driving genes: JAK2, MPL, and CALR. While the anti-inflammatory effects of JAK2 inhibitors can provide improved quality of life for many MPN patients, the upfront and persistent survival of disease-driving cells in MPN patients undergoing JAK2 inhibitor therapy thwarts potential for remission. Early studies indicated JAK2 inhibitor therapy induces heterodimeric complex formation of JAK2 with other JAK family members leading to sustained JAK2-dependent signaling. Recent work has described novel cell intrinsic details as well as cell extrinsic mechanisms that may contribute to why JAK2 inhibition may be ineffective at targeting MPN driving cells. Diverse experimental strategies aimed at uncovering mechanistic details that contribute to JAK2 inhibitor persistence have each highlighted the role of MEK/ERK activation. These approaches include, among others, phosphoproteomic analyses of JAK2 signaling as well as detailed assessment of JAK2 inhibition in mouse models of MPN. In this focused review, we highlight these and other studies that collectively suggest targeting MEK/ERK in combination with JAK2 inhibition has the potential to improve the efficacy of JAK2 inhibitors in MPN patients. As MPN patients patiently wait for improved therapies, such studies should further strengthen optimism that pre-clinical research is continuing to uncover mechanistic insights regarding the ineffectiveness of JAK2 inhibitors, which may lead to development of improved therapeutic strategies.
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Affiliation(s)
- Garima Pandey
- Department of Molecular Oncology, Moffitt Cancer Center, Tampa, FL, USA
| | | | - Gary W Reuther
- Department of Molecular Oncology, Moffitt Cancer Center, Tampa, FL, USA.
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Bakr A, Hey J, Sigismondo G, Liu CS, Sadik A, Goyal A, Cross A, Iyer RL, Müller P, Trauernicht M, Breuer K, Lutsik P, Opitz C, Krijgsveld J, Weichenhan D, Plass C, Popanda O, Schmezer P. ID3 promotes homologous recombination via non-transcriptional and transcriptional mechanisms and its loss confers sensitivity to PARP inhibition. Nucleic Acids Res 2021; 49:11666-11689. [PMID: 34718742 PMCID: PMC8599806 DOI: 10.1093/nar/gkab964] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/23/2021] [Accepted: 10/05/2021] [Indexed: 12/13/2022] Open
Abstract
The inhibitor of DNA-binding 3 (ID3) is a transcriptional regulator that limits interaction of basic helix-loop-helix transcription factors with their target DNA sequences. We previously reported that ID3 loss is associated with mutational signatures linked to DNA repair defects. Here we demonstrate that ID3 exhibits a dual role to promote DNA double-strand break (DSB) repair, particularly homologous recombination (HR). ID3 interacts with the MRN complex and RECQL helicase to activate DSB repair and it facilitates RAD51 loading and downstream steps of HR. In addition, ID3 promotes the expression of HR genes in response to ionizing radiation by regulating both chromatin accessibility and activity of the transcription factor E2F1. Consistently, analyses of TCGA cancer patient data demonstrate that low ID3 expression is associated with impaired HR. The loss of ID3 leads to sensitivity of tumor cells to PARP inhibition, offering new therapeutic opportunities in ID3-deficient tumors.
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Affiliation(s)
- Ali Bakr
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Joschka Hey
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
- Heidelberg University, Faculty of Biosciences, 69120 Heidelberg, Germany
| | - Gianluca Sigismondo
- Division of Proteomics of Stem Cells and Cancer, German Cancer Research Center (DKFZ), INF581, 69120 Heidelberg, Germany
| | - Chun-Shan Liu
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Ahmed Sadik
- DKTK Brain Cancer Metabolism Group, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Ashish Goyal
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Alice Cross
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
- Imperial College London, London, SW7 2AZ, UK
| | - Ramya Lakshmana Iyer
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Patrick Müller
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Max Trauernicht
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Kersten Breuer
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Pavlo Lutsik
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Christiane A Opitz
- DKTK Brain Cancer Metabolism Group, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- Neurology Clinic and National Center for Tumor Diseases, Heidelberg University Hospital, 69120 Heidelberg, Germany
| | - Jeroen Krijgsveld
- Division of Proteomics of Stem Cells and Cancer, German Cancer Research Center (DKFZ), INF581, 69120 Heidelberg, Germany
- Heidelberg University, Medical Faculty, INF672, 69120, Heidelberg, Germany
| | - Dieter Weichenhan
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Christoph Plass
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
- German Cancer Consortium (DKTK), INF280, 69120 Heidelberg, Germany
| | - Odilia Popanda
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
| | - Peter Schmezer
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), INF280, 69120 Heidelberg, Germany
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Bose P, Mesa RA. Novel strategies for challenging scenarios encountered in managing myelofibrosis. Leuk Lymphoma 2021; 63:774-788. [PMID: 34775887 DOI: 10.1080/10428194.2021.1999443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Given its rarity, multi-faceted clinical presentation and the relative paucity of approved therapies, the management of myeloproliferative neoplasm (MPN)-associated myelofibrosis (MF) can be challenging. Janus kinase (JAK) inhibitors, the only approved agents at present, have brought many clinical benefits to patients, with prolongation of survival also demonstrated for ruxolitinib. However, these agents have clear limitations. Optimal management of anemia in MF remains a major unmet need. Neither ruxolitinib nor fedratinib is recommended for use in patients with severe thrombocytopenia, i.e. platelets <50 × 109/L, who have a particularly poor prognosis. The search for the optimal partner for JAK inhibitors to address some of the shortcomings of these agents (e.g. limited ability to improve bone marrow fibrosis, cytopenias and induce molecular responses) and achieve meaningful 'disease modification' continues. This has led to the development of a number of rational, preclinically synergistic combinations for use either upfront or in the setting of sub-optimal response to JAK inhibition. Finally, the outlook for patients whose disease progresses on JAK inhibitor therapy continues to be grim, and agents with alternative mechanisms of action may be needed in this setting. In this article, we use a case-based approach to illustrate challenges commonly encountered in clinical practice and our management of the same. Fortunately, there has been enormous growth in drug development efforts in the MF space in the last few years, some of which appear poised to bear fruit in the very near future.
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Affiliation(s)
- Prithviraj Bose
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ruben A Mesa
- Mays Cancer Center, UT Health San Antonio MD Anderson, San Antonio, TX, USA
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Xu J, Richard S. Cellular pathways influenced by protein arginine methylation: Implications for cancer. Mol Cell 2021; 81:4357-4368. [PMID: 34619091 PMCID: PMC8571027 DOI: 10.1016/j.molcel.2021.09.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/24/2021] [Accepted: 09/08/2021] [Indexed: 02/07/2023]
Abstract
Arginine methylation is an influential post-translational modification occurring on histones, RNA binding proteins, and many other cellular proteins, affecting their function by altering their protein-protein and protein-nucleic acid interactions. Recently, a wealth of information has been gathered, implicating protein arginine methyltransferases (PRMTs), enzymes that deposit arginine methylation, in transcription, pre-mRNA splicing, DNA damage signaling, and immune signaling with major implications for cancer therapy, especially immunotherapy. This review summarizes this recent progress and the current state of PRMT inhibitors, some in clinical trials, as promising drug targets for cancer.
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Affiliation(s)
- Jian Xu
- Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA; Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, and Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
| | - Stéphane Richard
- Segal Cancer Center, Lady Davis Institute for Medical Research, Gerald Bronfman Department of Oncology, and Departments of Medicine, Human Genetics, and Biochemistry, McGill University, Montréal, QC H3T 1E2, Canada.
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Motolani A, Martin M, Sun M, Lu T. The Structure and Functions of PRMT5 in Human Diseases. Life (Basel) 2021; 11:life11101074. [PMID: 34685445 PMCID: PMC8539453 DOI: 10.3390/life11101074] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/06/2021] [Accepted: 10/07/2021] [Indexed: 12/17/2022] Open
Abstract
Since the discovery of protein arginine methyltransferase 5 (PRMT5) and the resolution of its structure, an increasing number of papers have investigated and delineated the structural and functional role of PRMT5 in diseased conditions. PRMT5 is a type II arginine methyltransferase that catalyzes symmetric dimethylation marks on histones and non-histone proteins. From gene regulation to human development, PRMT5 is involved in many vital biological functions in humans. The role of PRMT5 in various cancers is particularly well-documented, and investigations into the development of better PRMT5 inhibitors to promote tumor regression are ongoing. Notably, emerging studies have demonstrated the pathological contribution of PRMT5 in the progression of inflammatory diseases, such as diabetes, cardiovascular diseases, and neurodegenerative disorders. However, more research in this direction is needed. Herein, we critically review the position of PRMT5 in current literature, including its structure, mechanism of action, regulation, physiological and pathological relevance, and therapeutic strategies.
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Affiliation(s)
- Aishat Motolani
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (A.M.); (M.M.); (M.S.)
| | - Matthew Martin
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (A.M.); (M.M.); (M.S.)
| | - Mengyao Sun
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (A.M.); (M.M.); (M.S.)
| | - Tao Lu
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (A.M.); (M.M.); (M.S.)
- Department of Biochemistry & Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Department of Medical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Correspondence: ; Tel.: +1-317-278-0520
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35
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Stivala S, Meyer SC. Recent Advances in Molecular Diagnostics and Targeted Therapy of Myeloproliferative Neoplasms. Cancers (Basel) 2021; 13:cancers13205035. [PMID: 34680185 PMCID: PMC8534234 DOI: 10.3390/cancers13205035] [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: 07/31/2021] [Revised: 09/24/2021] [Accepted: 10/04/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Myeloproliferative neoplasms (MPN) are clonal hematologic malignancies with dysregulated myeloid blood cell production driven by JAK2, calreticulin, and MPL gene mutations. Technological advances have revealed a heterogeneous genomic landscape with additional mutations mainly in epigenetic regulators and splicing factors, which are of diagnostic and prognostic value and may inform treatment decisions. Thus, genetic testing has become an integral part of the state-of-the-art work-up for MPN. The finding that JAK2, CALR, and MPL mutations activate JAK2 signaling has promoted the development of targeted JAK2 inhibitor therapies. However, their disease-modifying potential remains limited and investigations of additional molecular vulnerabilities in MPN are imperative to advance the development of new therapeutic options. Here, we summarize the current insights into the genetic basis of MPN, its use as diagnostic and prognostic tool in clinical settings, and recent advances in targeted therapies for MPN. Abstract Somatic mutations in JAK2, calreticulin, and MPL genes drive myeloproliferative neoplasms (MPN), and recent technological advances have revealed a heterogeneous genomic landscape with additional mutations in MPN. These mainly affect genes involved in epigenetic regulation and splicing and are of diagnostic and prognostic value, predicting the risk of progression and informing decisions on therapeutic management. Thus, genetic testing has become an integral part of the current state-of-the-art laboratory work-up for MPN patients and has been implemented in current guidelines for disease classification, tools for prognostic risk assessment, and recommendations for therapy. The finding that JAK2, CALR, and MPL driver mutations activate JAK2 signaling has provided a rational basis for the development of targeted JAK2 inhibitor therapies and has fueled their translation into clinical practice. However, the disease-modifying potential of JAK2 inhibitors remains limited and is further impeded by loss of therapeutic responses in a substantial proportion of patients over time. Therefore, the investigation of additional molecular vulnerabilities involved in MPN pathogenesis is imperative to advance the development of new therapeutic options. Combination of novel compounds with JAK2 inhibitors are of specific interest to enhance therapeutic efficacy of molecularly targeted treatment approaches. Here, we summarize the current insights into the genetic basis of MPN, its use as a diagnostic and prognostic tool in clinical settings, and the most recent advances in targeted therapies for MPN.
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Affiliation(s)
- Simona Stivala
- Department of Biomedicine, University Hospital Basel and University of Basel, 4031 Basel, Switzerland;
| | - Sara C. Meyer
- Department of Biomedicine, University Hospital Basel and University of Basel, 4031 Basel, Switzerland;
- Division of Hematology, University Hospital Basel, 4031 Basel, Switzerland
- Correspondence: ; Tel.: +41-61-556-5965; Fax: +41-61-265-4568
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36
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Wang X, Qiu T, Wu Y, Yang C, Li Y, Du G, He Y, Liu W, Liu R, Chen CH, Shi Y, Pan J, Zhou J, Jiang D, Chen C. Arginine methyltransferase PRMT5 methylates and stabilizes KLF5 via decreasing its phosphorylation and ubiquitination to promote basal-like breast cancer. Cell Death Differ 2021; 28:2931-2945. [PMID: 33972717 PMCID: PMC8481478 DOI: 10.1038/s41418-021-00793-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 12/15/2022] Open
Abstract
Krüppel-like factor 5 (KLF5) is an oncogenic factor that is highly expressed in basal-like breast cancer (BLBC) and promotes cell proliferation, survival, migration, stemness, and tumor growth; however, its posttranslational modifications are poorly defined. Protein arginine methyltransferase 5 (PRMT5) is also an oncogene implicated in various carcinomas, including breast cancer. In this study, we found that PRMT5 interacts with KLF5 and catalyzes the di-methylation of KLF5 at Arginine 57 (R57) in a methyltransferase activity-dependent manner in BLBC cells. Depletion or pharmaceutical inhibition (using PJ-68) of PRMT5 decreased the expression of KLF5 and its downstream target genes in vitro and in vivo. PRMT5-induced KLF5R57me2 antagonizes GSK3β-mediated KLF5 phosphorylation and subsequently Fbw7-mediated KLF5 ubiquitination and coupled degradation. Functionally, PRMT5 promotes breast cancer stem cell maintenance and proliferation, at least partially, by stabilizing KLF5. PRMT5 and KLF5 protein levels were positively correlated in clinical BLBCs. Taken together, PRMT5 methylates KLF5 to prevent its phosphorylation, ubiquitination, and degradation, and thus promotes breast cancer stem cell maintenance and proliferation. These findings suggest that PRMT5 is a potential therapeutic target for BLBC.
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Affiliation(s)
- Xinye Wang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming, Yunnan, China
- KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Kunming, Yunnan, China
- Kunming College of Life Sciences, University of Chinese Academy Sciences, Kunming, Yunnan, China
| | - Ting Qiu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming, Yunnan, China
- KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Kunming, Yunnan, China
- Kunming College of Life Sciences, University of Chinese Academy Sciences, Kunming, Yunnan, China
| | - Yingying Wu
- Department of Pathology, The First Affiliated Hospital, Kunming Medical University, Kunming, China
| | - Chuanyu Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming, Yunnan, China
- KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Kunming, Yunnan, China
| | - Yi Li
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, USA
| | - Guangshi Du
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming, Yunnan, China
- KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Kunming, Yunnan, China
- Kunming College of Life Sciences, University of Chinese Academy Sciences, Kunming, Yunnan, China
| | - Yaohui He
- School of Pharmaceutical Science, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen University, Xiamen, Fujian, China
| | - Wen Liu
- School of Pharmaceutical Science, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen University, Xiamen, Fujian, China
| | - Rong Liu
- The First Affiliated Hospital, Peking University, Beijing, China
| | - Chuan-Huizi Chen
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Yujie Shi
- Department of Pathology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Jingxuan Pan
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Jia Zhou
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, USA
| | - Dewei Jiang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming, Yunnan, China.
- KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Kunming, Yunnan, China.
- Kunming College of Life Sciences, University of Chinese Academy Sciences, Kunming, Yunnan, China.
| | - Ceshi Chen
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming, Yunnan, China.
- KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Kunming, Yunnan, China.
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China.
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Xia T, Liu M, Zhao Q, Ouyang J, Xu P, Chen B. PRMT5 regulates cell pyroptosis by silencing CASP1 in multiple myeloma. Cell Death Dis 2021; 12:851. [PMID: 34531375 PMCID: PMC8445991 DOI: 10.1038/s41419-021-04125-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 07/30/2021] [Accepted: 08/23/2021] [Indexed: 02/08/2023]
Abstract
Protein arginine methyltransferase 5 (PRMT5), a histone methyltransferase responsible for the symmetric dimethylation of histone H4 on Arg 3 (H4R3me2s), is an enzyme that participates in tumor cell progression in a variety of hematological malignancies. However, the biological functions of PRMT5 in multiple myeloma (MM) and the underlying molecular mechanisms remain unclear. In this study, we conducted a bioinformatics analysis and found that PRMT5 expression was significantly upregulated in MM. In vitro and in vivo phenotypic experiments revealed that knockdown of PRMT5 expression enhanced cell pyroptosis in MM. Moreover, we found that CASP1 expression was negatively correlated with PRMT5 expression, and repressing PRMT5 expression rescued both the phenotype and expression markers (N-GSDMD, IL-1b, and IL-18). Inhibition of PRMT5 activity increased CASP1 expression and promoted MM cell pyroptosis. Finally, high expression of PRMT5 or low expression of CASP1 was correlated with poor overall survival in MM. Collectively, our results provide a mechanism by which PRMT5 regulates cell pyroptosis by silencing CASP1 in MM.
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Affiliation(s)
- Tian Xia
- Department of Hematology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, People's Republic of China
| | - Ming Liu
- The State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, 210008, People's Republic of China
| | - Quan Zhao
- The State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, 210008, People's Republic of China
| | - Jian Ouyang
- Department of Hematology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, People's Republic of China.
| | - Peipei Xu
- Department of Hematology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, People's Republic of China.
- Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210008, Jiangsu, People's Republic of China.
| | - Bing Chen
- Department of Hematology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, People's Republic of China.
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Sasca D, Guezguez B, Kühn MWM. Next generation epigenetic modulators to target myeloid neoplasms. Curr Opin Hematol 2021; 28:356-363. [PMID: 34267079 DOI: 10.1097/moh.0000000000000673] [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: 10/20/2022]
Abstract
PURPOSE OF REVIEW Comprehensive sequencing studies aimed at determining the genetic landscape of myeloid neoplasms have identified epigenetic regulators to be among the most commonly mutated genes. Detailed studies have also revealed a number of epigenetic vulnerabilities. The purpose of this review is to outline these vulnerabilities and to discuss the new generation of drugs that exploit them. RECENT FINDINGS In addition to deoxyribonucleic acid-methylation, novel epigenetic dependencies have recently been discovered in various myeloid neoplasms and many of them can be targeted pharmacologically. These include not only chromatin writers, readers, and erasers but also chromatin movers that shift nucleosomes to allow access for transcription. Inhibitors of protein-protein interactions represent a novel promising class of drugs that allow disassembly of oncogenic multiprotein complexes. SUMMARY An improved understanding of disease-specific epigenetic vulnerabilities has led to the development of second-generation mechanism-based epigenetic drugs against myeloid neoplasms. Many of these drugs have been introduced into clinical trials and synergistic drug combination regimens have been shown to enhance efficacy and potentially prevent drug resistance.
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Affiliation(s)
- Daniel Sasca
- Department of Hematology, Oncology, and Pulmonary Medicine, University Medical Center, Johannes Gutenberg-University Mainz, Mainz
| | - Borhane Guezguez
- Department of Hematology, Oncology, and Pulmonary Medicine, University Medical Center, Johannes Gutenberg-University Mainz, Mainz
- German Cancer Research Center (DKFZ), Heidelberg
- German Cancer Consortium (DKTK), Mainz, Germany
| | - Michael W M Kühn
- Department of Hematology, Oncology, and Pulmonary Medicine, University Medical Center, Johannes Gutenberg-University Mainz, Mainz
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39
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Epigenetic dysregulation in myeloid malignancies. Blood 2021; 138:613-624. [PMID: 34157099 DOI: 10.1182/blood.2019004262] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/19/2021] [Indexed: 12/18/2022] Open
Abstract
Epigenetic deregulation is now a well-recognized -though not yet fully understood- mechanism that contributes to the development and progression of myeloid malignancies. In the past 15 years, next generation sequencing studies have revealed patterns of aberrant DNA methylation, altered chromatin states, and mutations in chromatin modifiers across the spectrum of myeloid malignancies. Studies into the mechanisms that drive these diseases through mouse modeling have helped identify new avenues for therapeutic interventions, from initial treatment to resistant, relapsed disease. This is particularly significant when chemotherapy with cytotoxic agents remains the general standard of care. In this review, we will discuss some of the recent findings of epigenetic mechanisms and how these are informing the development of more targeted strategies for therapeutic intervention in myeloid malignancies.
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40
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Imaging of abdominal and pelvic infections in the cancer patient. Abdom Radiol (NY) 2021; 46:2920-2941. [PMID: 33386914 PMCID: PMC7778421 DOI: 10.1007/s00261-020-02896-7] [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: 10/06/2020] [Revised: 11/27/2020] [Accepted: 12/04/2020] [Indexed: 11/01/2022]
Abstract
Infections are the most commonly encountered complications in patients with cancer. The classical signs and symptoms of infections are often not present in this patient population, which makes the diagnosis more challenging. Host factors play a major role in the development and prognosis of infections in cancer patients; these can be related to the underlying type of malignancy (solid organ versus hematological), tumor burden, anatomic obstruction, altered integrity of barriers (skin or mucosa), treatment-related factors (from chemotherapy, radiation treatment, surgery, interventional procedures, and/or medical device placement) and the degree of immunosuppression. This article reviews common, as well as less common, imaging manifestations of infections and their potential mimics in the abdomen and pelvis in cancer patients and discusses their differentiating features, with the role of imaging in various organs in the abdomen and pelvis taking into consideration relevant clinical background information and the main risk factors.
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41
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Guccione E, Schwarz M, Di Tullio F, Mzoughi S. Cancer synthetic vulnerabilities to protein arginine methyltransferase inhibitors. Curr Opin Pharmacol 2021; 59:33-42. [PMID: 34052526 DOI: 10.1016/j.coph.2021.04.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 04/16/2021] [Indexed: 12/17/2022]
Abstract
Protein arginine methylation is an abundant post-translational modification involved in the modulation of essential cellular processes ranging from transcription, post-transcriptional RNA metabolism, and propagation of signaling cascades to the regulation of the DNA damage response. Excitingly for the field, in the past few years there have been remarkable advances in the development of molecular tools and clinical compounds able to selectively and potently inhibit protein arginine methyltransferase (PRMT) functions. In this review, we first discuss how the somatic mutations that confer advantages to cancer cells are often associated with vulnerabilities that can be exploited by PRMTs' inhibition. In a second part, we discuss strategies to uncover synthetic lethal combinations between existing therapies and PRMT inhibitors.
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Affiliation(s)
- Ernesto Guccione
- Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Mount Sinai Center for Therapeutics Discovery, Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Megan Schwarz
- Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Mount Sinai Center for Therapeutics Discovery, Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Federico Di Tullio
- Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Mount Sinai Center for Therapeutics Discovery, Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Slim Mzoughi
- Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Mount Sinai Center for Therapeutics Discovery, Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Sloan SL, Renaldo KA, Long M, Chung JH, Courtney LE, Shilo K, Youssef Y, Schlotter S, Brown F, Klamer BG, Zhang X, Yilmaz AS, Ozer HG, Valli VE, Vaddi K, Scherle P, Alinari L, Kisseberth WC, Baiocchi RA. Validation of protein arginine methyltransferase 5 (PRMT5) as a candidate therapeutic target in the spontaneous canine model of non-Hodgkin lymphoma. PLoS One 2021; 16:e0250839. [PMID: 33989303 PMCID: PMC8121334 DOI: 10.1371/journal.pone.0250839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 04/14/2021] [Indexed: 12/14/2022] Open
Abstract
Non-Hodgkin lymphoma (NHL) is a heterogeneous group of blood cancers arising in lymphoid tissues that commonly effects both humans and dogs. Protein arginine methyltransferase 5 (PRMT5), an enzyme that catalyzes the symmetric di-methylation of arginine residues, is frequently overexpressed and dysregulated in both human solid and hematologic malignancies. In human lymphoma, PRMT5 is a known driver of malignant transformation and oncogenesis, however, the expression and role of PRMT5 in canine lymphoma has not been explored. To explore canine lymphoma as a useful comparison to human lymphoma while validating PRMT5 as a rational therapeutic target in both, we characterized expression patterns of PRMT5 in canine lymphoma tissue microarrays, primary lymphoid biopsies, and canine lymphoma-derived cell lines. The inhibition of PRMT5 led to growth suppression and induction of apoptosis, while selectively decreasing global marks of symmetric dimethylarginine (SDMA) and histone H4 arginine 3 symmetric dimethylation. We performed ATAC-sequencing and gene expression microarrays with pathway enrichment analysis to characterize genome-wide changes in chromatin accessibility and whole-transcriptome changes in canine lymphoma cells lines upon PRMT5 inhibition. This work validates PRMT5 as a promising therapeutic target for canine lymphoma and supports the continued use of the spontaneously occurring canine lymphoma model for the preclinical development of PRMT5 inhibitors for the treatment of human NHL.
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Affiliation(s)
- Shelby L. Sloan
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, United States of America
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Kyle A. Renaldo
- Department of Veterinary Clinical Sciences, The Ohio State University, Columbus, Ohio, United States of America
| | - Mackenzie Long
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, United States of America
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Ji-Hyun Chung
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Lindsay E. Courtney
- Department of Veterinary Clinical Sciences, The Ohio State University, Columbus, Ohio, United States of America
| | - Konstantin Shilo
- Department of Pathology, The Ohio State University, Columbus, Ohio, United States of America
| | - Youssef Youssef
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Sarah Schlotter
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Fiona Brown
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Brett G. Klamer
- Department of Biomedical Informatics, Center for Biostatistics, The Ohio State University, Columbus, Ohio, United States of America
| | - Xiaoli Zhang
- Department of Biomedical Informatics, Center for Biostatistics, The Ohio State University, Columbus, Ohio, United States of America
| | - Ayse S. Yilmaz
- Department of Biomedical Informatics, Center for Biostatistics, The Ohio State University, Columbus, Ohio, United States of America
| | - Hatice G. Ozer
- Department of Biomedical Informatics, Center for Biostatistics, The Ohio State University, Columbus, Ohio, United States of America
| | - Victor E. Valli
- VDx Veterinary Diagnostics, Davis, California, United States of America
| | - Kris Vaddi
- Prelude Therapeutics, Wilmington, Delaware, United States of America
| | - Peggy Scherle
- Prelude Therapeutics, Wilmington, Delaware, United States of America
| | - Lapo Alinari
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - William C. Kisseberth
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
- Department of Veterinary Clinical Sciences, The Ohio State University, Columbus, Ohio, United States of America
- * E-mail: (WCK); (RAB)
| | - Robert A. Baiocchi
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
- * E-mail: (WCK); (RAB)
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Abstract
This article reviews the genetic data on epigenetic modifying mutations in myeloproliferative neoplasms and their clinical implications, preclinical studies exploring our current understanding of how mutations in epigenetic modifying proteins cooperate with myeloproliferative neoplasms drivers to promote disease progression, and recent advances in novel therapeutics supporting the role of targeting epigenetic pathways to treat fibrotic progression.
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Affiliation(s)
- Andrew Dunbar
- Department of Medicine, Leukemia Service, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA; Center for Hematologic Malignancies, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
| | - Young Park
- Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA
| | - Ross Levine
- Department of Medicine, Leukemia Service, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA; Center for Hematologic Malignancies, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA; Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA; Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 20, New York, NY 10065, USA.
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Abstract
Myeloproliferative neoplasms are hematopoietic stem cell disorders based on somatic mutations in JAK2, calreticulin, or MPL activating JAK-STAT signaling. Modern sequencing efforts have revealed the genomic landscape of myeloproliferative neoplasms with additional genetic alterations mainly in epigenetic modifiers and splicing factors. High molecular risk mutations with adverse outcomes have been identified and clonal evolution may promote progression to fibrosis and acute myeloid leukemia. JAK2V617F is recurrently detected in clonal hematopoiesis of indeterminate potential with increased risk for vascular events. Insights into the genetics of myeloproliferative neoplasms has facilitated diagnosis and prognostication and poses novel candidates for targeted therapeutic intervention.
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Nakamura S, Kanemasa Y, Atsuta Y, Fujiwara S, Tanaka M, Fukushima K, Kobayashi T, Shimoyama T, Omuro Y, Sekiya N, Imamura A. Characteristics and outcomes of coronavirus disease 2019 (COVID-19) patients with cancer: a single-center retrospective observational study in Tokyo, Japan. Int J Clin Oncol 2021; 26:485-493. [PMID: 33225396 PMCID: PMC7680712 DOI: 10.1007/s10147-020-01837-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 11/08/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND Although severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused an international outbreak of coronavirus disease 2019 (COVID-19), data on the clinical characteristics of COVID-19 patients with cancer are limited. This study aimed to evaluate the clinical characteristics and outcomes including mortality and viral shedding period in COVID-19 patients with cancer in Japan. METHODS We retrospectively analyzed 32 patients with a history of cancer who were referred to our hospital between January 31, 2020 and May 25, 2020. We evaluated the association between clinical outcomes and potential prognostic factors using univariate analyses. RESULTS The median age was 74.5 (range 24-90) years and 22 patients (69%) were men. A total of 11 patients (34%) died. Our analyses demonstrated that the mortality was significantly associated with lymphocyte count, albumin, lactate dehydrogenase, serum ferritin, and C-reactive protein on admission. The median period between illness onset and the first effective negative SARS-CoV-2 PCR result was 22 days (interquartile range 18-25) in survivors. Of four patients with hematological malignancy who developed COVID-19 within the rest period of chemotherapy, three died and the other patient, who received bendamustine plus rituximab therapy, had the longest duration of viral shedding (56 days). CONCLUSION Our study suggested that the risk factors for mortality previously reported in general COVID-19 patients, including lymphocytopenia, were also effective in cancer patients. Patients who received cytotoxic chemotherapy recently or were treated with chemotherapy, which can lead to lymphocyte reduction, had poor prognosis and prolonged periods of viral shedding.
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Affiliation(s)
- Shohei Nakamura
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, 3-18-22 Honkomagome, Bunkyo-ku, Tokyo, Japan
| | - Yusuke Kanemasa
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, 3-18-22 Honkomagome, Bunkyo-ku, Tokyo, Japan.
| | - Yuya Atsuta
- Division of Hematology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Sho Fujiwara
- Department of Infectious Diseases, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Masaru Tanaka
- Department of Infectious Diseases, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Kazuaki Fukushima
- Department of Infectious Diseases, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Taiichiro Kobayashi
- Department of Infectious Diseases, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Tatsu Shimoyama
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, 3-18-22 Honkomagome, Bunkyo-ku, Tokyo, Japan
| | - Yasushi Omuro
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, 3-18-22 Honkomagome, Bunkyo-ku, Tokyo, Japan
| | - Noritaka Sekiya
- Department of Infection Prevention and Control, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
- Department of Clinical Laboratory, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Akifumi Imamura
- Department of Infectious Diseases, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
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Yung Y, Lee E, Chu HT, Yip PK, Gill H. Targeting Abnormal Hematopoietic Stem Cells in Chronic Myeloid Leukemia and Philadelphia Chromosome-Negative Classical Myeloproliferative Neoplasms. Int J Mol Sci 2021; 22:ijms22020659. [PMID: 33440869 PMCID: PMC7827471 DOI: 10.3390/ijms22020659] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/05/2021] [Accepted: 01/06/2021] [Indexed: 02/02/2023] Open
Abstract
Myeloproliferative neoplasms (MPNs) are unique hematopoietic stem cell disorders sharing mutations that constitutively activate the signal-transduction pathways involved in haematopoiesis. They are characterized by stem cell-derived clonal myeloproliferation. The key MPNs comprise chronic myeloid leukemia (CML), polycythemia vera (PV), essential thrombocythemia (ET), and primary myelofibrosis (PMF). CML is defined by the presence of the Philadelphia (Ph) chromosome and BCR-ABL1 fusion gene. Despite effective cytoreductive agents and targeted therapy, complete CML/MPN stem cell eradication is rarely achieved. In this review article, we discuss the novel agents and combination therapy that can potentially abnormal hematopoietic stem cells in CML and MPNs and the CML/MPN stem cell-sustaining bone marrow microenvironment.
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MESH Headings
- Antineoplastic Agents/pharmacology
- Antineoplastic Agents/therapeutic use
- Antineoplastic Combined Chemotherapy Protocols/adverse effects
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Autophagy
- Biomarkers, Tumor
- Cell Survival/drug effects
- Cell Transformation, Neoplastic/genetics
- Combined Modality Therapy
- Disease Susceptibility
- Genetic Predisposition to Disease
- Hematopoietic Stem Cells/drug effects
- Hematopoietic Stem Cells/metabolism
- Hematopoietic Stem Cells/pathology
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/etiology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/therapy
- Molecular Targeted Therapy
- Myeloproliferative Disorders/etiology
- Myeloproliferative Disorders/pathology
- Myeloproliferative Disorders/therapy
- Neoplastic Stem Cells/drug effects
- Neoplastic Stem Cells/metabolism
- Neoplastic Stem Cells/pathology
- Philadelphia Chromosome
- Signal Transduction/drug effects
- Stem Cell Niche
- Tumor Microenvironment
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Affiliation(s)
| | | | | | | | - Harinder Gill
- Correspondence: ; Tel.: +852-2255-4542; Fax: +852-2816-2863
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Liang Z, Liu L, Wen C, Jiang H, Ye T, Ma S, Liu X. Clinicopathological and Prognostic Significance of PRMT5 in Cancers: A System Review and Meta-Analysis. Cancer Control 2021; 28:10732748211050583. [PMID: 34758643 PMCID: PMC8591649 DOI: 10.1177/10732748211050583] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
PURPOSE Since protein arginine methyltransferase 5 (PRMT5) is abnormally expressed in various tumors, in this study we aim to assess the association between PRMT5 and clinicopathological and prognostic features. METHODS Electronic databases including PubMed, Web of Science, Scopus, ScienceDirect, and the Cochrane Library were searched until July 25, 2021. The critical appraisal of the eligible studies was performed using the Newcastle-Ottawa Quality Assessment Scale. Pooled hazard ratios (HR) and pooled odds ratios (OR) were calculated to assess the effect. Engauge Digitizer version 12.1, STATA version 15.1, and R version 4.0.5 were used to obtain and analysis the data. RESULTS A total of 32 original studies covering 15,583 patients were included. In our data, it indicated that high level of PRMT5 was significantly correlated with advanced tumor stage (OR = 2.12, 95% CI: 1.22-3.70, P =.008; I2 = 80.7%) and positively correlated with poor overall survival (HR = 1.59, 95% CI: 1.46-1.73, P < .001; I2 = 50%) and progression-free survival (HR = 1.53, 95% CI: 1.24-1.88, P < .001; I2 = 0%). In addition, sub-group analysis showed that high level of PRMT5 was associated with poor overall survival for such 5 kinds of cancers as hepatocellular carcinoma, pancreatic cancer, breast cancer, gastric cancer, and lung cancer. CONCLUSION For the first time we found PRMT5 was pan-cancerous as a prognostic biomarker and high level of PRMT5 was associated with poor prognosis for certain cancers.
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Affiliation(s)
- Zhenzhen Liang
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, 130021, China
| | - Lianchang Liu
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, 130021, China
| | - Chaowei Wen
- School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, China
| | - Heya Jiang
- School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, China
| | - Tianxia Ye
- School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, China
| | - Shumei Ma
- School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, China
- Key Laboratory of Watershed Science and Health of Zhejiang Province, Wenzhou Medical University, Wenzhou, 325035, China
| | - Xiaodong Liu
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, 130021, China
- School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, China
- Key Laboratory of Watershed Science and Health of Zhejiang Province, Wenzhou Medical University, Wenzhou, 325035, China
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Sharma V, Wright KL, Epling-Burnette PK, Reuther GW. Metabolic Vulnerabilities and Epigenetic Dysregulation in Myeloproliferative Neoplasms. Front Immunol 2020; 11:604142. [PMID: 33329600 PMCID: PMC7734315 DOI: 10.3389/fimmu.2020.604142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 11/02/2020] [Indexed: 01/14/2023] Open
Abstract
The Janus kinase 2 (JAK2)-driven myeloproliferative neoplasms (MPNs) are associated with clonal myelopoiesis, elevated risk of death due to thrombotic complications, and transformation to acute myeloid leukemia (AML). JAK2 inhibitors improve the quality of life for MPN patients, but these approved therapeutics do not readily reduce the natural course of disease or antagonize the neoplastic clone. An understanding of the molecular and cellular changes requisite for MPN development and progression are needed to develop improved therapies. Recently, murine MPN models were demonstrated to exhibit metabolic vulnerabilities due to a high dependence on glucose. Neoplastic hematopoietic progenitor cells in these mice express elevated levels of glycolytic enzymes and exhibit enhanced levels of glycolysis and oxidative phosphorylation, and the disease phenotype of these MPN model mice is antagonized by glycolytic inhibition. While all MPN-driving mutations lead to aberrant JAK2 activation, these mutations often co-exist with mutations in genes that encode epigenetic regulators, including loss of function mutations known to enhance MPN progression. In this perspective we discuss how altered activity of epigenetic regulators (e.g., methylation and acetylation) in MPN-driving stem and progenitor cells may alter cellular metabolism and contribute to the MPN phenotype and progression of disease. Specific metabolic changes associated with epigenetic deregulation may identify patient populations that exhibit specific metabolic vulnerabilities that are absent in normal hematopoietic cells, and thus provide a potential basis for the development of more effective personalized therapeutic approaches.
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Affiliation(s)
- Vasundhara Sharma
- Department of Leukemia, Princess Margaret Cancer Center-University Health Network, Toronto, ON, Canada
| | - Kenneth L Wright
- Department of Immunology, Moffitt Cancer Center, Tampa, FL, United States
| | | | - Gary W Reuther
- Department of Molecular Oncology, Moffitt Cancer Center, Tampa, FL, United States
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Oertel M, Elsayad K, Engenhart-Cabillic R, Reinartz G, Baues C, Schmidberger H, Vordermark D, Marnitz S, Lukas P, Ruebe C, Engert A, Lenz G, Eich HT. Radiation treatment of hemato-oncological patients in times of the COVID-19 pandemic : Expert recommendations from the radiation oncology panels of the German Hodgkin Study Group and the German Lymphoma Alliance. Strahlenther Onkol 2020; 196:1096-1102. [PMID: 33125504 PMCID: PMC7596809 DOI: 10.1007/s00066-020-01705-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 10/22/2020] [Indexed: 02/06/2023]
Abstract
PURPOSE The coronavirus pandemic is affecting global health systems, endangering daily patient care. Hemato-oncological patients are particularly vulnerable to infection, requiring decisive recommendations on treatment and triage. The aim of this survey amongst experts on radiation therapy (RT) for lymphoma and leukemia is to delineate typical clinical scenarios and to provide counsel for high-quality care. METHODS A multi-item questionnaire containing multiple-choice and free-text questions was developed in a peer-reviewed process and sent to members of the radiation oncology panels of the German Hodgkin Study Group and the German Lymphoma Alliance. Answers were assessed online and analyzed centrally. RESULTS Omission of RT was only considered in a minority of cases if alternative treatment options were available. Hypofractionated regimens and reduced dosages may be used for indolent lymphoma and fractures due to multiple myeloma. Overall, there was a tendency to shorten RT rather than to postpone or omit it. Even in case of critical resource shortage, panelists agreed to start emergency RT for typical indications (intracranial pressure, spinal compression, superior vena cava syndrome) within 24 h. Possible criteria to consider for patient triage are the availability of (systemic) options, the underlying disease dynamic, and the treatment rationale (curative/palliative). CONCLUSION RT for hemato-oncological patients receives high-priority and should be maintained even in later stages of the pandemic. Hypofractionation and shortened treatment schedules are feasible options for well-defined constellations, but have to be discussed in the clinical context.
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Affiliation(s)
- M Oertel
- Department of Radiation Oncology, University Hospital Muenster, Albert-Schweitzer-Campus 1 building A1, 48149, Muenster, Germany
| | - K Elsayad
- Department of Radiation Oncology, University Hospital Muenster, Albert-Schweitzer-Campus 1 building A1, 48149, Muenster, Germany
| | - R Engenhart-Cabillic
- Department of Radiotherapy and Radiation Oncology, University Hospital Giessen-Marburg, Marburg, Germany
| | - G Reinartz
- Department of Radiation Oncology, University Hospital Muenster, Albert-Schweitzer-Campus 1 building A1, 48149, Muenster, Germany
| | - C Baues
- Department of Radiation Oncology and Cyberknife Center, University Hospital of Cologne, Cologne, Germany
| | - H Schmidberger
- Department of Radiotherapy and Radiation Oncology, University Hospital Mainz, Mainz, Germany
| | - D Vordermark
- Department of Radiation Oncology, University Hospital Halle (Saale), Halle (Saale), Germany
| | - S Marnitz
- Department of Radiation Oncology and Cyberknife Center, University Hospital of Cologne, Cologne, Germany
| | - P Lukas
- Department of Radiooncology, Medical University Innsbruck, Innsbruck, Austria
| | - C Ruebe
- Department of Radiation Oncology, Saarland University Hospital, Homburg, Germany
| | - A Engert
- Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf, University Hospital of Cologne, Cologne, Germany
| | - G Lenz
- Department of Medicine A, Hematology, Oncology, University Hospital Muenster, Muenster, Germany
| | - H T Eich
- Department of Radiation Oncology, University Hospital Muenster, Albert-Schweitzer-Campus 1 building A1, 48149, Muenster, Germany.
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50
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Takahari D, Shinozaki E, Wakatsuki T, Ooki A, Ozaka M, Suzuki T, Nakayama I, Osumi H, Kamiimabeppu D, Sato T, Ogura M, Suenaga M, Chin K, Yamaguchi K. Managing a gastrointestinal oncology practice in Japan during the COVID-19 pandemic: single institutional experience in The Cancer Institute Hospital of Japanese Foundation for Cancer Research. Int J Clin Oncol 2020; 26:335-344. [PMID: 33085057 PMCID: PMC7576109 DOI: 10.1007/s10147-020-01806-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 10/04/2020] [Indexed: 02/07/2023]
Abstract
Coronavirus disease 2019 (COVID-19) was declared to be a global pandemic by the World Health Organization on March 11, 2020. On April 7, 2020, a state of emergency was declared in Japan, as had been by other nations worldwide. This unprecedented crisis has profound implications for patients undergoing chemotherapy and for practicing healthcare professionals. Various reports have shown data indicating that cancer patients with COVID-19 have high morbidity and mortality rates. In order to reduce the use of medical resources to avoid the risk of COVID-19 infections in both cancer patients and health care providers, oncologists now have to draw the line for cancer treatments by maintaining their efficacy while avoiding severe adverse events. In this article, we outlined the decisions made regarding the practice of gastrointestinal oncology in our institution during the COVID pandemic.
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Affiliation(s)
- Daisuke Takahari
- Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan.
| | - Eiji Shinozaki
- Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Takeru Wakatsuki
- Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Akira Ooki
- Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Masato Ozaka
- Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Takeshi Suzuki
- Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan.,Gastroenterology Department, Kawasaki Municipal Hospital, Kawasaki, Japan
| | - Izuma Nakayama
- Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Hiroki Osumi
- Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Daisaku Kamiimabeppu
- Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Taro Sato
- Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Mariko Ogura
- Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Mitsukuni Suenaga
- Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Keisho Chin
- Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Kensei Yamaguchi
- Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
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