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Huang HY, Wang Y, Herold T, Gale RP, Wang JZ, Li L, Lin HX, Liang Y. A survival prediction model and nomogram based on immune-related gene expression in chronic lymphocytic leukemia cells. Front Med (Lausanne) 2022; 9:1026812. [PMID: 36600891 PMCID: PMC9806429 DOI: 10.3389/fmed.2022.1026812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022] Open
Abstract
Introduction There are many different chronic lymphoblastic leukemia (CLL) survival prediction models and scores. But none provide information on expression of immune-related genes in the CLL cells. Methods We interrogated data from the Gene Expression Omnibus database (GEO, GSE22762; Number = 151; training) and International Cancer Genome Consortium database (ICGC, CLLE-ES; Number = 491; validation) to develop an immune risk score (IRS) using Least absolute shrinkage and selection operator (LASSO) Cox regression analyses based on expression of immune-related genes in CLL cells. The accuracy of the predicted nomogram we developed using the IRS, Binet stage, and del(17p) cytogenetic data was subsequently assessed using calibration curves. Results A survival model based on expression of 5 immune-related genes was constructed. Areas under the curve (AUC) for 1-year survivals were 0.90 (95% confidence interval, 0.78, 0.99) and 0.75 (0.54, 0.87) in the training and validation datasets, respectively. 5-year survivals of low- and high-risk subjects were 89% (83, 95%) vs. 6% (0, 17%; p < 0.001) and 98% (95, 100%) vs. 92% (88, 96%; p < 0.001) in two datasets. The IRS was an independent survival predictor of both datasets. A calibration curve showed good performance of the nomogram. In vitro, the high expression of CDKN2A and SREBF2 in the bone marrow of patients with CLL was verified by immunohistochemistry analysis (IHC), which were associated with poor prognosis and may play an important role in the complex bone marrow immune environment. Conclusion The IRS is an accurate independent survival predictor with a high C-statistic. A combined nomogram had good survival prediction accuracy in calibration curves. These data demonstrate the potential impact of immune related genes on survival in CLL.
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Affiliation(s)
- Han-ying Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China,Department of Hematologic Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China,Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yun Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China,Department of Hematologic Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Tobias Herold
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
| | - Robert Peter Gale
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China,Department of Hematologic Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China,Haematology Research Centre, Department of Immunology and Inflammation, Imperial College London, London, United Kingdom
| | - Jing-zi Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China,Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Liang Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China,Department of Hematologic Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Huan-xin Lin
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China,Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China,Huan-xin Lin,
| | - Yang Liang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China,Department of Hematologic Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China,*Correspondence: Yang Liang,
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Guan Y, Hasipek M, Tiwari AD, Maciejewski JP, Jha BK. TET-dioxygenase deficiency in oncogenesis and its targeting for tumor-selective therapeutics. Semin Hematol 2021; 58:27-34. [PMID: 33509440 PMCID: PMC7938524 DOI: 10.1053/j.seminhematol.2020.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/04/2020] [Accepted: 12/19/2020] [Indexed: 02/08/2023]
Abstract
TET2 is one of the most frequently mutated genes in myeloid neoplasms. TET2 loss-of-function perturbs myeloid differentiation and causes clonal expansion. Despite extensive knowledge regarding biochemical mechanisms underlying distorted myeloid differentiation, targeted therapies are lagging. Here we review known biochemical mechanisms and candidate therapies that emerge from this. Specifically, we discuss the potential utility of vitamin C to compensate for TET-dioxygenase deficiency, to thereby restore the biochemical function. An alternative approach exploits the TET-deficient state for synthetic lethality, exploiting the fact that a minimum level of TET-dioxygenase activity is required for cell survival, rendering TET2-mutant malignant cells selectively vulnerable to inhibitors of TET-function.
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Affiliation(s)
- Yihong Guan
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Metis Hasipek
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Anand D Tiwari
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Jaroslaw P Maciejewski
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Babal K Jha
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH.
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Hu A, Yang LY, Liang J, Lu D, Zhang JL, Cao FF, Fu JY, Dai WJ, Zhang JF. SIRT2 modulates VEGFD-associated lymphangiogenesis by deacetylating EPAS1 in human head and neck cancer. Mol Carcinog 2020; 59:1280-1291. [PMID: 32965071 DOI: 10.1002/mc.23256] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/15/2020] [Accepted: 08/23/2020] [Indexed: 12/13/2022]
Abstract
Sirtuin 2 (SIRT2) is one of seven mammalian homologs of silent information regulator 2 (Sir2) and an NAD+ -dependent deacetylase; however, its critical role in lymphangiogenesis remains to be explored. We investigate SIRT2 mediated regulation of vascular endothelial growth factor D (VEGFD) expression and lymphangiogenesis by deacetylating endothelial PAS domain protein 1 (EPAS1) in head and neck cancer (HNC) in vitro and in vivo. In this study, we report that SIRT2, rather than other members of the Sir2 family, reduces the expression of VEGFD and lymphangiogenesis in hypoxia-induced HNC cells and transplanted HNC mice models by reducing EPAS1 acetylation at Lys674 and decreasing the transcriptional activity of EPAS1 target genes. The expression of SIRT2 was closely related to the expression of VEGFD, lymphangiogenesis in subcutaneously transplanted mice models, and lymphangiogenesis in patients with HNC. Our results suggest that SIRT2 plays a central role in tumor lymphangiogenesis via deacetylating EPAS1 protein. Reagents targeting the NAD+ -dependent deacetylase activity of SIRT2 would be beneficial for inhibiting tumor lymphangiogenesis and treating other hypoxia-related diseases.
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Affiliation(s)
- An Hu
- Department of Otolaryngology-Head and Neck Surgery, Gongli Hospital, Second Military Medical University, Shanghai, China
| | - Li-Yun Yang
- Department of Otolaryngology-Head and Neck Surgery, Gongli Hospital, Second Military Medical University, Shanghai, China
| | - Jia Liang
- Department of Otolaryngology-Head and Neck Surgery, Gongli Hospital, Second Military Medical University, Shanghai, China
| | - Dan Lu
- Department of Otolaryngology-Head and Neck Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jia-Li Zhang
- Department of Otolaryngology, Jinqiao Community Health Service Center, Shanghai, China
| | - Fan-Fan Cao
- Department of Sino-French Cooperative Central Lab, Gongli Hospital, Second Military Medical University, Shanghai, China
| | - Jia-Ying Fu
- Department of Otolaryngology-Head and Neck Surgery, Gongli Hospital, Second Military Medical University, Shanghai, China
| | - Wei-Jun Dai
- Department of Otolaryngology-Head and Neck Surgery, Gongli Hospital, Second Military Medical University, Shanghai, China
| | - Jing-Fei Zhang
- Department of Otolaryngology-Head and Neck Surgery, Gongli Hospital, Second Military Medical University, Shanghai, China
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Feng Y, Li X, Cassady K, Zou Z, Zhang X. TET2 Function in Hematopoietic Malignancies, Immune Regulation, and DNA Repair. Front Oncol 2019; 9:210. [PMID: 31001476 PMCID: PMC6454012 DOI: 10.3389/fonc.2019.00210] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Accepted: 03/11/2019] [Indexed: 12/13/2022] Open
Abstract
Over the last decade, investigation of Ten-Eleven Translocation 2 (TET2) gene function and TET2 mutation have become of increasing interest in the field of hematology. This heightened interest was sparked by the seminal discoveries that (1) TET2 mutation is associated with development of hematological malignancies and that (2) the TET family of proteins is critical in promoting DNA demethylation and immune homeostasis. Since then, additional studies have begun to unravel the question “Does TET2 have additional biological functions in the regulation of hematopoiesis?” Here, we present a mini-review focused on the current understanding of TET2 in hematopoiesis, hematological malignancies, and immune regulation. Importantly, we highlight the critical function that TET2 facilitates in maintaining the stability of the genome. Based on our review of the literature, we provide a new hypothesis that loss of TET2 may lead to dysregulation of the DNA repair response, augment genome instability, and subsequently sensitize myeloid leukemia cells to PARP inhibitor treatment.
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Affiliation(s)
- Yimei Feng
- Department of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, China
| | - Xiaoping Li
- Department of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, China
| | - Kaniel Cassady
- Irell and Manella Graduate School of Biological Sciences of City of Hope, Duarte, CA, United States.,Henry E. Riggs School of Applied Life Sciences, Keck Graduate Institute, Claremont, CA, United States
| | - Zhongmin Zou
- Department of Chemical Defense, School of Preventive Medicine, Army Medical University, Chongqing, China
| | - Xi Zhang
- Department of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, China
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