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Niu H, Zhang M, Liu M, Yang L, Yang L, Ren J, Yu Y, Liu Y, Xing L, Shao Z, Wang H. Thymocyte selection-associated high mobility box protein regulates T lymphocytes exhaustion in patients with myelodysplastic syndromes by inhibiting PI3K/AKT/mTOR pathway. Hematol Oncol 2024; 42:e3224. [PMID: 37712442 DOI: 10.1002/hon.3224] [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: 04/11/2023] [Revised: 08/31/2023] [Accepted: 09/02/2023] [Indexed: 09/16/2023]
Abstract
Myelodysplastic syndromes (MDS) patients often experience CD8+ T lymphocytes exhaustion, which plays a crucial role in the development of MDS. However, the specific role of thymocyte selection-associated high mobility box protein (TOX) in the CD8+ T lymphocytes exhaustion in MDS patients remains unclear. In this study, we investigated the role of TOX in CD8+ T lymphocytes exhaustion in patients with MDS. The expression of TOX, inhibitory receptors (IRs), and functional molecules in peripheral blood T lymphocytes of MDS patients and normal controls were detected using flow cytometry. Lentiviral transduction was used to create stable TOX-knockdown CD8+ T lymphocytes, and small interfering RNA (si-RNA) was used to knock down TOX in Jurkat cells. The expression of TOX was found to be significantly higher in CD8+ T lymphocytes of MDS patients compared to normal controls. This was associated with upregulated IRs and reduced expression of functional molecules such as Granzyme and Perforin. Myelodysplastic syndromes patients with higher TOX expression had poor clinical indicators and shorter survival. Knockdown of TOX using sh-RNA partially reverses the exhausted phenotype and enhances the lethality of CD8+ T lymphocytes. Moreover, the knockdown of TOX using si-RNA in Jurkat cells improved cell proliferation activity, down-regulated IRs and activated PI3K/AKT/mTOR signaling pathway. TOX promotes the exhaustion of CD8+ T lymphocytes by inhibiting PI3K/AKT/mTOR pathway, and targeted inhibition of TOX could partially restore the effector functions and activity of CD8+ T lymphocytes.
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Affiliation(s)
- Haiyue Niu
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Mengying Zhang
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Mengyuan Liu
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Liyan Yang
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Liping Yang
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Jie Ren
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Yating Yu
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Yumei Liu
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Limin Xing
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Zonghong Shao
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Huaquan Wang
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin, China
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Zhang Z, Huang N, Xv F, Zhao S, Guo J, Zhao Y, Chang C. Decreased FOXO1 Expression Is Correlated with Poor Prognosis in Myelodysplastic Syndromes. Curr Oncol 2022; 29:6933-6946. [PMID: 36290822 PMCID: PMC9600488 DOI: 10.3390/curroncol29100545] [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: 08/22/2022] [Revised: 09/18/2022] [Accepted: 09/20/2022] [Indexed: 01/13/2023] Open
Abstract
Myelodysplastic syndrome is one of the main hematological malignancies that threaten the health of the elderly. However, biomarkers which predict the progression and prognosis of MDS are still controversial and puzzling. FOXO1 gene plays an important role in a variety of intracellular functions, including tumor suppression and cellular immune regulation. However, there is no research report on the correlation between FOXO1 and the clinical features of MDS including immune environment. In this study, we observed that FOXO1 expression is associated with neutrophil count, blasts, chromosome and different MDS scoring systems. FOXO1 expression is closely related to MDS cell immune polarization, and the increase expression of FOXO1 is significantly related to the amplification of immune cell polarization ratio. In addition, FOXO1 expression is associated with progression-free survival and overall survival in MDS patients. Moreover, in a multivariate model FOXO1 low-expression was an independent predictor of poor survival in MDS. In summary, FOXO1 may play a candidate tumor suppressor in MDS, and FOXO1 is a useful independent prognostic predictor in MDS, and it may provide a candidate target therapy in future.
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3
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Upadhyay P, Beales J, Shah NM, Gruszczynska A, Miller CA, Petti AA, Ramakrishnan SM, Link DC, Ley TJ, Welch JS. Recurrent transcriptional responses in AML and MDS patients treated with decitabine. Exp Hematol 2022; 111:50-65. [PMID: 35429619 PMCID: PMC9833843 DOI: 10.1016/j.exphem.2022.04.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/29/2022] [Accepted: 04/05/2022] [Indexed: 01/21/2023]
Abstract
The molecular events responsible for decitabine responses in myelodysplastic syndrome and acute myeloid leukemia patients are poorly understood. Decitabine has a short serum half-life and limited stability in tissue culture. Therefore, theoretical pharmacologic differences may exist between patient molecular changes in vitro and the consequences of in vivo treatment. To systematically identify the global genomic and transcriptomic alterations induced by decitabine in vivo, we evaluated primary bone marrow samples that were collected during patient treatment and applied whole-genome bisulfite sequencing, RNA-sequencing, and single-cell RNA sequencing. Decitabine induced global, reversible hypomethylation after 10 days of therapy in all patients, which was associated with induction of interferon-induced pathways, the expression of endogenous retroviral elements, and inhibition of erythroid-related transcripts, recapitulating many effects seen previously in in vitro studies. However, at relapse after decitabine treatment, interferon-induced transcripts remained elevated relative to day 0, but erythroid-related transcripts now were more highly expressed than at day 0. Clinical responses were not correlated with epigenetic or transcriptional signatures, although sample size and interpatient variance restricted the statistical power required for capturing smaller effects. Collectively, these data define global hypomethylation by decitabine and find that erythroid-related pathways may be relevant because they are inhibited by therapy and reverse at relapse.
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Affiliation(s)
- Pawan Upadhyay
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Jeremy Beales
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Nakul M. Shah
- Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Agata Gruszczynska
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Christopher A. Miller
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Allegra A. Petti
- Department of Neuro-logical Surgery, Washington University School of Medicine, St. Louis, MO
| | - Sai Mukund Ramakrishnan
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Daniel C. Link
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Timothy J. Ley
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - John S. Welch
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
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4
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Zhang Z, Jia Y, Xv F, Song LX, Shi L, Guo J, Chang CK. Decitabine Induces Change of Biological Traits in Myelodysplastic Syndromes via FOXO1 Activation. Front Genet 2021; 11:603956. [PMID: 33584800 PMCID: PMC7873873 DOI: 10.3389/fgene.2020.603956] [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: 12/04/2020] [Indexed: 11/26/2022] Open
Abstract
Decitabine (DAC) is considered to be a profound global DNA demethylation, which can induce the re-expression of silenced tumor suppressor genes. Little is known about the function of tumor suppressor gene FOXO1 in myelodysplastic syndromes (MDS). To address this issue, the study firstly investigated differentially expressed genes (DEGs) for DAC treatment in MDS cell lines, then explored the role of FOXO1 through silencing its expression before DAC treatment in MDS. The results showed that FOXO1 exists in a hyperphosphorylated, inactive form in MDS-L cells. DAC treatment both induces FOXO1 expression and reactivates the protein in its low phosphorylation level. Additionally, the results also demonstrated that this FOXO1 activation is responsible for the DAC-induced apoptosis, cell cycle arrest, antigen differentiation, and immunoregulation in MDS-L cells. We also demonstrated DAC-induced FOXO1 activation upregulates anti-tumor immune response in higher-risk MDS specimens. Collectively, these results suggest that DAC induces FOXO1 activation, which plays an important role in anti-MDS tumors.
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Affiliation(s)
- Zheng Zhang
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yan Jia
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Feng Xv
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Lu-Xi Song
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Lei Shi
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Juan Guo
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Chun-Kang Chang
- Department of Hematology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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5
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Sarmento-Ribeiro AB, Scorilas A, Gonçalves AC, Efferth T, Trougakos IP. The emergence of drug resistance to targeted cancer therapies: Clinical evidence. Drug Resist Updat 2019; 47:100646. [PMID: 31733611 DOI: 10.1016/j.drup.2019.100646] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/23/2019] [Accepted: 09/25/2019] [Indexed: 12/14/2022]
Abstract
For many decades classical anti-tumor therapies included chemotherapy, radiation and surgery; however, in the last two decades, following the identification of the genomic drivers and main hallmarks of cancer, the introduction of therapies that target specific tumor-promoting oncogenic or non-oncogenic pathways, has revolutionized cancer therapeutics. Despite the significant progress in cancer therapy, clinical oncologists are often facing the primary impediment of anticancer drug resistance, as many cancer patients display either intrinsic chemoresistance from the very beginning of the therapy or after initial responses and upon repeated drug treatment cycles, acquired drug resistance develops and thus relapse emerges, resulting in increased mortality. Our attempts to understand the molecular basis underlying these drug resistance phenotypes in pre-clinical models and patient specimens revealed the extreme plasticity and adaptive pathways employed by tumor cells, being under sustained stress and extensive genomic/proteomic instability due to the applied therapeutic regimens. Subsequent efforts have yielded more effective inhibitors and combinatorial approaches (e.g. the use of specific pharmacologic inhibitors with immunotherapy) that exhibit synergistic effects against tumor cells, hence enhancing therapeutic indices. Furthermore, new advanced methodologies that allow for the early detection of genetic/epigenetic alterations that lead to drug chemoresistance and prospective validation of biomarkers which identify patients that will benefit from certain drug classes, have started to improve the clinical outcome. This review discusses emerging principles of drug resistance to cancer therapies targeting a wide array of oncogenic kinases, along with hedgehog pathway and the proteasome and apoptotic inducers, as well as epigenetic and metabolic modulators. We further discuss mechanisms of resistance to monoclonal antibodies, immunomodulators and immune checkpoint inhibitors, potential biomarkers of drug response/drug resistance, along with possible new therapeutic avenues for the clinicians to combat devastating drug resistant malignancies. It is foreseen that these topics will be major areas of focused multidisciplinary translational research in the years to come.
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Affiliation(s)
- Ana Bela Sarmento-Ribeiro
- Laboratory of Oncobiology and Hematology and University Clinic of Hematology and Coimbra Institute for Clinical and Biomedical Research - Group of Environment Genetics and Oncobiology (iCBR/CIMAGO), Faculty of Medicine, University of Coimbra (FMUC), Center for Innovative Biomedicine and Biotechnology (CIBB), Coimbra, Portugal; Hematology Department, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal.
| | - Andreas Scorilas
- Department of Biochemistry and Molecular Biology, Faculty of Biology, National and Kapodistrian University of Athens, Athens, Greece
| | - Ana Cristina Gonçalves
- Laboratory of Oncobiology and Hematology and University Clinic of Hematology and Coimbra Institute for Clinical and Biomedical Research - Group of Environment Genetics and Oncobiology (iCBR/CIMAGO), Faculty of Medicine, University of Coimbra (FMUC), Center for Innovative Biomedicine and Biotechnology (CIBB), Coimbra, Portugal
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Mainz, Germany
| | - Ioannis P Trougakos
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, Greece.
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6
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Sokołowski M, Sokołowska A, Mazur G, Butrym A. Programmed cell death protein receptor and ligands in haematological malignancies - Current status. Crit Rev Oncol Hematol 2019; 135:47-58. [PMID: 30819446 DOI: 10.1016/j.critrevonc.2019.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 11/26/2018] [Accepted: 01/09/2019] [Indexed: 02/02/2023] Open
Abstract
The checkpoint inhibitors have been continuously present in haematology for 20 years. From the first description, several of them were enrolled to the list of the oncological drugs. The research on nivolumab, avelumab, durvolumab is still in progress. In the treatment of some diseases, for instance, Hodgkin lymphoma, the programmed death cell pathway has already an important role. During the last years, the guidelines were enriched by using these drugs, both in solid and haematological malignancies. In this review, we present a history of discovery, research and clinical use of this new class of drugs potentially providing a significant change in curability rates of some haematological malignancies.
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Affiliation(s)
- Marcin Sokołowski
- Oddział Chorób Wewnętrznych I, Specjalistyczny Szpital im. Alfreda Sokołowskiego w Wałbrzychu, Poland
| | - Anna Sokołowska
- Oddział Chorób Wewnętrznych I, Specjalistyczny Szpital im. Alfreda Sokołowskiego w Wałbrzychu, Poland
| | - Grzegorz Mazur
- Dept. of Internal Diseases, Occupational Medicine, Hypertension and Clinical Oncology, Wroclaw Medical University, Wroclaw, Poland
| | - Aleksandra Butrym
- Dept. of Cancer Prevention and Therapy, Wroclaw Medical University, Poland.
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7
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Ren Y, Jiang H, Shi F, Ye L, Luo Y, Zhou X, Mei C, Ma L, Xu W, Lin P, Hu C, Jin J, Tong H. Decitabine for myelodysplastic syndromes: dose comparison in a real world clinical setting. Leuk Lymphoma 2019; 60:1731-1739. [PMID: 30616472 DOI: 10.1080/10428194.2018.1546853] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We retrospectively studied 133 myelodysplastic syndrome patients receiving decitabine during January 2009 and September 2017. The dose of 15 mg/m2/d (n = 83) and 20 mg/m2/d (n = 50) had comparable overall response rates (ORR) (51.8% vs. 52.00%) and complete remission rate (CRR) (15.66% vs. 22.00%). The 15 mg/m2/d group had a lower incidence of grade 3/4 neutropenia (60.24% vs. 88.00%, p < .05) and thrombocytopenia (65.06% vs. 88.00%, p < .05). The 15 mg/m2/d group had a longer median overall survival (OS) (21.60 months vs. 15.23 months, p = .02). The same results were seen in refractory anemia with excess blasts (RAEB) patients: The 15 mg/m2/d group also had comparable ORR, CRR, decreased hematological toxicities and longer OS. Further analysis suggested that survival benefit of 15 mg/m2/d group was mainly in those patients with lower risk stratification. In conclusion, 15 mg/m2/d decitabine is associated with a lower incidence of hematological toxicities and longer OS and may be more suitable for patients with relatively lower risk.
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Affiliation(s)
- Yanling Ren
- a Department of Hematology, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China.,b Myelodysplastic Syndromes Diagnosis and Therapy Center, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China
| | - Huifang Jiang
- c Tongde Hospital of Zhejiang Province , Institute of Hematology , Hangzhou , Zhejiang , China
| | - Fangjing Shi
- d Jinhua People's Hospital , Institute of Hematology , Jinhua , Zhejiang , China
| | - Li Ye
- a Department of Hematology, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China.,b Myelodysplastic Syndromes Diagnosis and Therapy Center, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China
| | - Yingwan Luo
- a Department of Hematology, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China.,b Myelodysplastic Syndromes Diagnosis and Therapy Center, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China
| | - Xinping Zhou
- a Department of Hematology, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China.,b Myelodysplastic Syndromes Diagnosis and Therapy Center, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China
| | - Chen Mei
- a Department of Hematology, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China.,b Myelodysplastic Syndromes Diagnosis and Therapy Center, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China
| | - Liya Ma
- a Department of Hematology, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China.,b Myelodysplastic Syndromes Diagnosis and Therapy Center, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China
| | - Weilai Xu
- a Department of Hematology, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China
| | - Peipei Lin
- a Department of Hematology, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China.,b Myelodysplastic Syndromes Diagnosis and Therapy Center, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China
| | - Chao Hu
- a Department of Hematology, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China.,b Myelodysplastic Syndromes Diagnosis and Therapy Center, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China
| | - Jie Jin
- a Department of Hematology, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China.,c Tongde Hospital of Zhejiang Province , Institute of Hematology , Hangzhou , Zhejiang , China
| | - Hongyan Tong
- a Department of Hematology, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China.,b Myelodysplastic Syndromes Diagnosis and Therapy Center, The First Affiliated Hospital, College of Medicine , Zhejiang University , Hangzhou , Zhejiang , China
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8
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Predictors of clinical responses to hypomethylating agents in acute myeloid leukemia or myelodysplastic syndromes. Ann Hematol 2018; 97:2025-2038. [DOI: 10.1007/s00277-018-3464-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 07/27/2018] [Indexed: 12/18/2022]
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9
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Atanackovic D, Luetkens T. Biomarkers for checkpoint inhibition in hematologic malignancies. Semin Cancer Biol 2018; 52:198-206. [PMID: 29775689 DOI: 10.1016/j.semcancer.2018.05.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/14/2018] [Accepted: 05/14/2018] [Indexed: 01/27/2023]
Abstract
In the past few years we have seen remarkable paradigm shifts in the treatment of many solid tumors due to the introduction of inhibitors targeting immune checkpoints such as PD-1/PD-L1 and CTLA-4. Recent results indicate that checkpoint inhibition also represents a very promising approach for certain types of hematologic malignancies. Unfortunately, treatment with checkpoint inhibitors is also associated with substantial toxicities and high costs and only a subset of patients appears to derive clinical benefit from these treatments. This demonstrates the urgent need for biomarkers for the identification of patient populations that are likely to respond to this type of therapy and/or have fewer side effects. Here, we have reviewed available information on the prognostic and predictive value of biomarkers for anti-CTLA-4 and anti-PD-1/PD-L1 as the most commonly used checkpoint inhibitors. There are currently no reliable biomarkers capable of predicting responses to anti-CTLA-4 agents, such as ipilimumab, in hematologic malignancies. Certain polymorphisms in the CTLA-4 gene, however, seem to have an impact on the patients' outcome, especially in the case of chronic lymphocytic leukemia (CLL). There is now sufficient data supporting PD-L1 expression levels in the tumor tissue as an independent prognostic factor in B cell lymphomas such as diffuse large B-cell lymphoma (DLBCL). Overexpression of PD-L1 in the tumor tissue and elevated serum levels of soluble PD-L1 may also represent adverse prognostic factors in certain subtypes of T cell lymphomas. Finally, expression levels of PD-L1 also seem to predict responses to anti-PD-1/PD-L1 approaches in patients with Hodgkin lymphoma. Future studies will have to further delineate the prognostic/predictive role of PD-L1 expression as a biomarker in hematologic malignancies and may be able to identify confounding variables, which will hopefully to some extent be generalizable to other types of anti-tumor immunotherapies.
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Affiliation(s)
- Djordje Atanackovic
- Multiple Myeloma Program & Cancer Immunology, Division of Hematology and Hematologic Malignancies, University of Utah/Huntsman Cancer Institute, Salt Lake City, UT, United States.
| | - Tim Luetkens
- Multiple Myeloma Program & Cancer Immunology, Division of Hematology and Hematologic Malignancies, University of Utah/Huntsman Cancer Institute, Salt Lake City, UT, United States
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10
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Lai Q, Wang H, Li A, Xu Y, Tang L, Chen Q, Zhang C, Gao Y, Song J, Du Z. Decitibine improve the efficiency of anti-PD-1 therapy via activating the response to IFN/PD-L1 signal of lung cancer cells. Oncogene 2018; 37:2302-2312. [DOI: 10.1038/s41388-018-0125-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 10/27/2017] [Accepted: 12/16/2017] [Indexed: 12/25/2022]
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11
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Hemmati S, Haque T, Gritsman K. Inflammatory Signaling Pathways in Preleukemic and Leukemic Stem Cells. Front Oncol 2017; 7:265. [PMID: 29181334 PMCID: PMC5693908 DOI: 10.3389/fonc.2017.00265] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 10/20/2017] [Indexed: 12/15/2022] Open
Abstract
Hematopoietic stem cells (HSCs) are a rare subset of bone marrow cells that usually exist in a quiescent state, only entering the cell cycle to replenish the blood compartment, thereby limiting the potential for errors in replication. Inflammatory signals that are released in response to environmental stressors, such as infection, trigger active cycling of HSCs. These inflammatory signals can also directly induce HSCs to release cytokines into the bone marrow environment, promoting myeloid differentiation. After stress myelopoiesis is triggered, HSCs require intracellular signaling programs to deactivate this response and return to steady state. Prolonged or excessive exposure to inflammatory cytokines, such as in prolonged infection or in chronic rheumatologic conditions, can lead to continued HSC cycling and eventual HSC loss. This promotes bone marrow failure, and can precipitate preleukemic states or leukemia through the acquisition of genetic and epigenetic changes in HSCs. This can occur through the initiation of clonal hematopoiesis, followed by the emergence preleukemic stem cells (pre-LSCs). In this review, we describe the roles of multiple inflammatory signaling pathways in the generation of pre-LSCs and in progression to myelodysplastic syndrome (MDS), myeloproliferative neoplasms, and acute myeloid leukemia (AML). In AML, activation of some inflammatory signaling pathways can promote the cycling and differentiation of LSCs, and this can be exploited therapeutically. We also discuss the therapeutic potential of modulating inflammatory signaling for the treatment of myeloid malignancies.
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Affiliation(s)
- Shayda Hemmati
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States.,Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Tamanna Haque
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States.,Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, United States.,Department of Oncology, Montefiore Medical Center, Bronx, NY, United States
| | - Kira Gritsman
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, United States.,Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, United States.,Department of Oncology, Montefiore Medical Center, Bronx, NY, United States
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12
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Abedin S, Platanias LC. PD1 and PDL1 upregulation and survival after decitabine treatment in lower risk MDS. Leuk Lymphoma 2016; 58:764-765. [PMID: 27808592 DOI: 10.1080/10428194.2016.1251594] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Sameem Abedin
- a Robert H. Lurie Comprehensive Cancer Center and Division of Hematology-Oncology, Feinberg School of Medicine , Northwestern University , Chicago , IL , USA
| | - Leonidas C Platanias
- a Robert H. Lurie Comprehensive Cancer Center and Division of Hematology-Oncology, Feinberg School of Medicine , Northwestern University , Chicago , IL , USA.,b Department of Medicine , Jesse Brown Veterans Affairs Medical Center , Chicago , IL , USA
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