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Guo C, Dong M, Wang X, Yu J, Jin X, Cheng S, Cui F, Qian Y, Bao Q, Zhi L, Niu Z, Li M, Zhu W. A novel MICA/B-targeted chimeric antigen receptor augments the cytotoxicity of NK cells against tumor cells. Biochem Biophys Res Commun 2024; 710:149918. [PMID: 38598902 DOI: 10.1016/j.bbrc.2024.149918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 04/06/2024] [Indexed: 04/12/2024]
Abstract
Chimeric antigen receptor (CAR)-modified immune cells have emerged as a promising approach for cancer treatment, but single-target CAR therapy in solid tumors is limited by immune escape caused by tumor antigen heterogeneity and shedding. Natural killer group 2D (NKG2D) is an activating receptor expressed in human NK cells, and its ligands, such as MICA and MICB (MICA/B), are widely expressed in malignant cells and typically absent from healthy tissue. NKG2D plays an important role in anti-tumor immunity, recognizing tumor cells and initiating an anti-tumor response. Therefore, NKG2D-based CAR is a promising CAR candidate. Nevertheless, the shedding of MICA/B hinders the therapeutic efficacy of NKG2D-CARs. Here, we designed a novel CAR by engineering an anti-MICA/B shedding antibody 1D5 into the CAR construct. The engineered NK cells exhibited significantly enhanced cytotoxicity against various MICA/B-expressing tumor cells and were not inhibited by NKG2D antibody or NKG2D-Fc fusion protein, indicating no interference with NKG2D-MICA/B binding. Therefore, the developed 1D5-CAR could be combined with NKG2D-CAR to further improve the obstacles caused by MICA/B shedding.
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Affiliation(s)
- Changjiang Guo
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China.
| | - Meng Dong
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Xiang Wang
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Jie Yu
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Xinru Jin
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Shizhuang Cheng
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Feiyan Cui
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Yifan Qian
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Qianqian Bao
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Lingtong Zhi
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Zhiyuan Niu
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Mingfeng Li
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Wuling Zhu
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China.
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2
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Guo C, Guo X, Li X, Dong M, Wang X, Cheng S, Zhi L, Niu Z, Zhu W. The SpyCatcher-SpyTag interaction mediates tunable anti-tumor cytotoxicity of NK cells. Mol Immunol 2024; 165:11-18. [PMID: 38128392 DOI: 10.1016/j.molimm.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 11/06/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023]
Abstract
Chimeric antigen receptor (CAR)-modified T and NK cell immunotherapy is a promising approach for cancer treatment. Due to the lack of tunability in anti-tumor activity, conventional CAR therapies have limited efficacy at low tumor antigen densities. To tune the CAR response to tumor cell surface antigens, we have developed a split CAR using the SpyCatcher-SpyTag system. The SpyCatcher serves as the ectodomain to constitute a SpyCatcher-CAR (SpyCAR), while SpyTag is attached to the antibodies that recognize tumor antigens. With dimerization mediated by SpyCatcher and SpyTag, the number and activation level of SpyCARs recruited by tumor antigens depends on the SpyTag number in the "antibody-SpyTag" fusion protein. The results demonstrated that the increasing number of SpyTags effectively enhanced the cytotoxicity of SpyCAR-NK92 cells against target cells. The development of SpyCAR with tunable cytotoxicity provides a novel strategy for CAR-based tumor immunotherapies.
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Affiliation(s)
- Changjiang Guo
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China.
| | - Xiali Guo
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Xiaojuan Li
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Meng Dong
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Xiang Wang
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Shizhuang Cheng
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Lingtong Zhi
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Zhiyuan Niu
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Wuling Zhu
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China.
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Zhi L, Wang X, Gao Q, He W, Shang C, Guo C, Niu Z, Zhu W, Zhang X. Intrinsic and extrinsic factors determining natural killer cell fate: Phenotype and function. Biomed Pharmacother 2023; 165:115136. [PMID: 37453199 DOI: 10.1016/j.biopha.2023.115136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/26/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023] Open
Abstract
Natural killer (NK) cells are derived from hematopoietic stem cells. They belong to the innate lymphoid cell family, which is an important part of innate immunity. This family plays a role in the body mainly through the release of perforin, granzyme, and various cytokines and is involved in cytotoxicity and cytokine-mediated immune regulation. NK cells involved in normal immune regulation and the tumor microenvironment (TME) can exhibit completely different states. Here, we discuss the growth, development, and function of NK cells in regard to intrinsic and extrinsic factors. Intrinsic factors are those that influence NK cells to promote cell maturation and exert their effector functions under the control of internal metabolism and self-related genes. Extrinsic factors include the metabolism of the TME and the influence of related proteins on the "fate" of NK cells. This review targets the potential of NK cell metabolism, cellular molecules, regulatory genes, and other mechanisms involved in immune regulation. We further discuss immune-mediated tumor therapy, which is the trend of current research.
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Affiliation(s)
- Lingtong Zhi
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China
| | - Xing Wang
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China
| | - Qing Gao
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China
| | - Wenhui He
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China
| | - Chongye Shang
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China
| | - Changjiang Guo
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China
| | - Zhiyuan Niu
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China
| | - Wuling Zhu
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China.
| | - Xuan Zhang
- Department of Physiology and Neurobiology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, PR China.
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Guo C, Chen H, Yu J, Lu H, Xia Q, Li X, Guo X, Wang T, Zhi L, Niu Z, Zhu W. Engagement of an optimized lentiviral vector enhances the expression and cytotoxicity of CAR in human NK cells. Mol Immunol 2023; 155:91-99. [PMID: 36736195 DOI: 10.1016/j.molimm.2023.01.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/19/2023] [Accepted: 01/24/2023] [Indexed: 02/04/2023]
Abstract
Adoptive chimeric antigen receptor (CAR)-modified T or NK cells (CAR-T/NK) have emerged as a novel form of disease treatment. Lentiviral vectors (LVs) are commonly employed to engineer NK cells for the efficient expression of CARs. This study reported the influence of single-promoter and dual-promoter LVs on the CAR expression and cytotoxicity of engineered NK cells. We constructed a third-generation NKG2D-based CAR that kills cancer cells by targeting up to eight stress-induced ligands (NKG2DLs). Our results demonstrated that the CAR exhibits both a higher expression level and a higher coexpression concordance with the GFP reporter in HEK-293T or NK92 cells by utilizing the optimized single-promoter pCDHsp rather than the original dual-promoter pCDHdp. After puromycin selection, the pCDHsp produces robust CAR expression and enhanced in vitro cytotoxicity of engineered NK cells. Therefore, infection with a single-promoter pCDHsp lentivector is recommended to prepare CAR-engineered NK cells. This research helps to optimize the production of CAR-NK cells and enhance their functional activity, to provide CAR-NK cell products with better and more uniform quality.
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Affiliation(s)
- Changjiang Guo
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China.
| | - Han Chen
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Jie Yu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Hui Lu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Qing Xia
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Xiaojuan Li
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Xiali Guo
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Tong Wang
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Lingtong Zhi
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Zhiyuan Niu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Wuling Zhu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China.
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Zhou C, A. Xiong, Fang J, Li X, Fan Y, Zhuang W, Xie Q, Ma Z, Kang M, Xu T, Xu M, Zhi L, Liu Q, Wang N. 1022P A phase II study of KN046 (a bispecific anti-PD-L1/CTLA-4) in patients with metastatic non-small cell lung cancer (NSCLC) who failed first line treatment. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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6
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Niu Z, Luo Z, Sun P, Ning L, Jin X, Chen G, Guo C, Zhi L, Chang W, Zhu W. In Vitro Nanobody Library Construction by Using Gene Designated-Region Pan-Editing Technology. Biodes Res 2022; 2022:9823578. [PMID: 37850144 PMCID: PMC10521727 DOI: 10.34133/2022/9823578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 06/09/2022] [Indexed: 10/19/2023] Open
Abstract
Camelid single-domain antibody fragments (nanobodies) are an emerging force in therapeutic biopharmaceuticals and clinical diagnostic reagents in recent years. Nearly all nanobodies available to date have been obtained by animal immunization, a bottleneck restricting the large-scale application of nanobodies. In this study, we developed three kinds of gene designated-region pan-editing (GDP) technologies to introduce multiple mutations in complementarity-determining regions (CDRs) of nanobodies in vitro. Including the integration of G-quadruplex fragments in CDRs, which induces the spontaneous multiple mutations in CDRs; however, these mutant sequences are highly similar, resulting in a lack of sequences diversity in the CDRs. We also used CDR-targeting traditional gRNA-guided base-editors, which effectively diversify the CDRs. And most importantly, we developed the self-assembling gRNAs, which are generated by reprogrammed tracrRNA hijacking of endogenous mRNAs as crRNAs. Using base-editors guided by self-assembling gRNAs, we can realize the iteratively diversify the CDRs. And we believe the last GDP technology is highly promising in immunization-free nanobody library construction, and the full development of this novel nanobody discovery platform can realize the synthetic evolution of nanobodies in vitro.
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Affiliation(s)
- Zhiyuan Niu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003 Henan, China
| | - Zhixia Luo
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003 Henan, China
| | - Pengyang Sun
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003 Henan, China
| | - Linwei Ning
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003 Henan, China
| | - Xinru Jin
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003 Henan, China
| | - Guanxu Chen
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003 Henan, China
| | - Changjiang Guo
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003 Henan, China
| | - Lingtong Zhi
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003 Henan, China
| | - Wei Chang
- Department of Oncology, Xinxiang First People’s Hospital, The Affiliated People’s Hospital of Xinxiang Medical University, Xinxiang 453000China
| | - Wuling Zhu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003 Henan, China
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Zhi L, Su X, Yin M, Zhang Z, Lu H, Niu Z, Guo C, Zhu W, Zhang X. Genetical engineering for NK and T cell immunotherapy with CRISPR/Cas9 technology: Implications and challenges. Cell Immunol 2021; 369:104436. [PMID: 34500148 DOI: 10.1016/j.cellimm.2021.104436] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 08/07/2021] [Accepted: 08/25/2021] [Indexed: 12/23/2022]
Abstract
Immunotherapy has become one of the most promising strategies in cancer therapies. Among the therapeutic alternatives, genetically engineered NK/T cell therapies have emerged as powerful and innovative therapeutic modalities for cancer patients with precise targeting and impressive efficacy. Nonetheless, this approach still faces multiple challenges, such as immunosuppressive tumor microenvironment, exhaustion of immune effector cells in tumors, off-target effects manufacturing complexity, and poor infiltration of effector cells, all of which need to be overcome for further utilization to cancers. Recently, CRISPR/Cas9 genome editing technology, with the goal of enhancing the efficacy and increasing the availability of engineered effector cell therapies, has shown considerable potential in the novel strategies and options to overcome these limitations. Here we review the current progress of the applications of CRISPR in cancer immunotherapy. Furthermore, we discuss issues related to the NK/T cell applications, gene delivery methods, efficiency, challenges, and implications of CRISPR/Cas9.
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Affiliation(s)
- Lingtong Zhi
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Xin Su
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Meichen Yin
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Zikang Zhang
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Hui Lu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Zhiyuan Niu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Changjiang Guo
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Wuling Zhu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China.
| | - Xuan Zhang
- Department of Physiology and Neurobiology, Xinxiang Medical University, Xinxiang, Henan, PR China.
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Fang W, Yang Y, Huang Y, Li X, Huang S, Wu J, Li Y, Chang B, Hu S, Yang S, Xu J, Van H, Zhi L, Xia Y, Li L, Yang F, Xia Y, Xu T, Zhang L. 1293P KN046 (an anti-PD-L1/CTLA-4 bispecific antibody) in combination with platinum doublet chemotherapy as first-line (1L) treatment in patients with advanced NSCLC harboring resistant oncogenic driver alterations. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Niu Z, Chen G, Chang W, Sun P, Luo Z, Zhang H, Zhi L, Guo C, Chen H, Yin M, Zhu W. Chimeric antigen receptor-modified macrophages trigger systemic anti-tumour immunity. J Pathol 2020; 253:247-257. [PMID: 33140856 DOI: 10.1002/path.5585] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 09/16/2020] [Accepted: 10/29/2020] [Indexed: 12/11/2022]
Abstract
Preliminary results and emerging data have shown that lipid droplet high (LDhi ) immunosuppressive cells accumulate in tumour tissues. By tracking and phenotypic profiling of LDhi cells, we find that LDhi CD19+ , LDhi CD11b+ , and LDhi Ly6G+ immune cell populations appear in the spleen, thymus, and tumour tissues in a syngeneic tumour model. Using a contact-dependent reporter system, we discover a LDhi CCR7hi immunosuppressive cell population that migrates from tumour tissues to the spleen and thymus. Hence, we engineered a family of chimeric antigen receptor-modified macrophages (CAR-Ms) that direct macrophages to CCR7-positive cells and show that the cytosolic domain from Mer receptor tyrosine kinase (MerTK) triggers tumour cell cytotoxicity by the CAR-Ms. In vivo, CCR7-targeted CAR-Ms suppressed tumour growth and prolonged survival by preventing metastasis and by inducing systemic anti-tumour immunity through retarding the migration of LDhi CCR7hi immunosuppressive cells from tumour tissues to distal immune organs, indicating an important role for CCR7 in tumour cell-induced immune tolerance. © 2020 The Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Zhiyuan Niu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, PR China
| | - Guanxu Chen
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, PR China
| | - Wei Chang
- Department of Oncology, Xinxiang First People's Hospital, The Affiliated People's Hospital of Xinxiang Medical University, Xinxiang, PR China
| | - Pengyang Sun
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, PR China
| | - Zhixia Luo
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, PR China
| | - Huiyong Zhang
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, PR China
| | - Lingtong Zhi
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, PR China
| | - Changjiang Guo
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, PR China
| | - Han Chen
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, PR China
| | - Meichen Yin
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, PR China
| | - Wuling Zhu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, PR China
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10
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Lu C, Guo C, Chen H, Zhang H, Zhi L, Lv T, Li M, Niu Z, Lu P, Zhu W. A novel chimeric PD1-NKG2D-41BB receptor enhances antitumor activity of NK92 cells against human lung cancer H1299 cells by triggering pyroptosis. Mol Immunol 2020; 122:200-206. [PMID: 32388482 DOI: 10.1016/j.molimm.2020.04.016] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/12/2020] [Accepted: 04/15/2020] [Indexed: 12/25/2022]
Abstract
Chimeric antigen receptor (CAR)-modified adoptive natural killer (NK) cells represent a promising immunotherapeutic modality for cancer treatment but face many challenges in solid tumors. One major obstacle is the immune-suppressive effects induced by inhibitory receptors (IR) including PD1. To interfere with PD1 signaling to augment CAR-NK cells' activity against solid tumors, we rationally designed a novel chimeric costimulatory converting receptor (CCCR), comprising mainly the extracellular domain of PD1, transmembrane and cytoplasmic domains of NKG2D, and the cytoplasmic domain of 41BB. This NK-tailored CCCR was able to switch the negative PD1 signal to an activating signal and hence reversed the immune suppressive effects of PD1. The CCCR-modified NK92 (CCCR-NK92) cells retained typical characteristics of NK cells and exhibited enhanced antitumor activity against human lung cancer H1299 cells in vitro compared with untransduced NK92 cells. The rapid clearance of H1299 cells was caused by CCCR-NK92 cell-induced extensive pyroptosis. In a lung cancer xenograft model, CCCR-NK92 cells significantly inhibited tumor growth. Our results highlight a promising immunotherapeutic potential of using NK-tailored CCCR engineered NK92 cells to treat human lung cancer.
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Affiliation(s)
- Chengui Lu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China; Sanquan College of Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Changjiang Guo
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Han Chen
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Huiyong Zhang
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Lingtong Zhi
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Tanyu Lv
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Mingfeng Li
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Zhiyuan Niu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Ping Lu
- Department of Oncology, First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan Province, PR China.
| | - Wuling Zhu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China.
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Zhang H, Xia W, Liang C, Wang X, Zhi L, Guo C, Niu Z, Zhu W. VEGF165b and its mutant demonstrate immunomodulatory, not merely anti-angiogenic functions, in tumor-bearing mice. Mol Immunol 2020; 122:132-140. [PMID: 32353584 DOI: 10.1016/j.molimm.2020.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/08/2020] [Accepted: 04/09/2020] [Indexed: 12/21/2022]
Abstract
A great deal of evidence has shown that anti-angiogenic molecules and antibodies targeting the VEGF-A/VEGFRs signal pathway can also reverse tumor-induced immunosuppression to an extent. VEGF165b, an anti-angiogenic VEGF-A isoform, has demonstrated capacity as an efficacious anti-tumor therapy in mice as an anti-angiogenic agent. However, whether VEGF165b also plays an immunomodulatory role in anti-tumor field remains unclear. mVEGF165b effect on regulatory T cells (Tregs) in vitro were evaluated using flow cytometry and Cell Counting Kit-8 (CCK-8) methods. Its effects on Tregs (or Foxp3 expressing cells) and myeloid-derived suppressor cells (MDSCs) were analyzed in vivo using flow cytometry and immunostaining techniques. In this study, we found VEGF165b and its mutant (its half-life in plasma was extended 10 times while retaining its bioactivity; the VEGF165b mutant is called mVEGF165b for short) inhibited the proliferation of Tregs in vitro. In addition, mVEGF165b dramatically inhibited the accumulation of MDSCs and Tregs (or Foxp3 expressing cells) in the spleen and tumor in tumor-bearing mice. In conclusion, our findings demonstrated for the first time that VEGF165b and its mutant has immunoregulatory functions. It may be used as a potential immunomodulatory agent, beyond its anti-angiogenic capacities, in cancer therapies.
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Affiliation(s)
- Huiyong Zhang
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, 453003, PR China.
| | - Wenjiao Xia
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, 453003, PR China
| | - Chen Liang
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, 453003, PR China
| | - Xiaoyin Wang
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, 453003, PR China
| | - Lingtong Zhi
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, 453003, PR China
| | - Changjiang Guo
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, 453003, PR China
| | - Zhiyuan Niu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, 453003, PR China
| | - Wuling Zhu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, 453003, PR China.
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Guo C, Wang X, Zhang H, Zhi L, Lv T, Li M, Lu C, Zhu W. Structure-based rational design of a novel chimeric PD1-NKG2D receptor for natural killer cells. Mol Immunol 2019; 114:108-113. [PMID: 31351411 DOI: 10.1016/j.molimm.2019.07.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/08/2019] [Accepted: 07/11/2019] [Indexed: 02/09/2023]
Abstract
Chimeric antigen receptor (CAR)-engineered natural killer (NK) cells have the potential to provide the potential for the implementation of allogeneic "off-the-shelf" cellular therapy against cancers. Currently, most CARs are not optimized for NK cells, so new NK-tailored CARs are needed. Here, a major activating receptor of NK cells, NKG2D was harnessed to design different chimeric receptors that mediate strong NK cell signaling. In these NKG2D signaling-based chimeric receptors, the extracellular domain of inhibitory receptor PD-1 was employed to reverse the immune escape mediated by PD-1 ligands in the solid tumors. To achieve the rational design of chimeric PD1-NKG2D receptors, we developed a transmembrane protein tertiary structure prediction program (PredMP & I-TASSER) and optimized the conformation of the PD-1 ectodomain by genetically altering the sequences encoding the hinge and intracellular domain. Finally, we identified a chimeric PD1-NKG2D receptor containing NKG2D hinge region and 4-1BB co-stimulatory domain to exhibit stable surface expression and mediate in vitro cytotoxicity of NK92 cells against various tumor cells. This strategy now provides a promising approach for the computer-aided design (CAD) of potent NK cell-tailored chimeric receptors with NKG2D signaling.
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Affiliation(s)
- Changjiang Guo
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Xiaoyin Wang
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Huiyong Zhang
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Lingtong Zhi
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Tanyu Lv
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Mingfeng Li
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Chengui Lu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China
| | - Wuling Zhu
- Synthetic Biology Engineering Lab of Henan Province, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province, PR China.
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13
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Zhang R, Li R, Feng Q, Zhi L, Li Z, Xu YO, Lin Y. Expression profiles and associations of FGF1 and FGF10 with intramuscular fat in Tibetan chicken. Br Poult Sci 2018; 59:613-617. [PMID: 30259763 DOI: 10.1080/00071668.2018.1507018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- R. Zhang
- College of Life Sciences, Hubei Normal University, Huangshi, China
| | - R. Li
- Reproductive and Endocrine Laboratory, Chengdu Woman-Child Central Hospital, Chengdu, China
| | - Q. Feng
- Department of Otorhinolaryngology Head and Neck Surgery, Hospital of Guangxi Medical University, Nanning, China
| | - L. Zhi
- College of Life Sciences, Hubei Normal University, Huangshi, China
| | - Z. Li
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
| | - Y.-O. Xu
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
| | - Y. Lin
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
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Cai X, Yi X, Zhang Y, Zhang D, Zhi L, Liu H. Genetic susceptibility of postmenopausal osteoporosis on sulfide quinone reductase-like gene. Osteoporos Int 2018; 29:2041-2047. [PMID: 29855663 DOI: 10.1007/s00198-018-4575-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 05/14/2018] [Indexed: 10/14/2022]
Abstract
UNLABELLED Postmenopausal osteoporosis is a major health problem with important genetic factors in postmenopausal women. We explored the relationship between SQRDL and osteoporosis in a cohort of 1006 patients and 2027 controls from Han Chinese postmenopausal women. Our evidence supported the significant role of SQRDL in the etiology of postmenopausal osteoporosis. INTRODUCTION Postmenopausal osteoporosis (PMOP) is a metabolic bone disease leading to progressive bone loss and the deterioration of the bone microarchitecture. The sulfide-quinone reductase-like protein is an important enzyme regulating the cellular hydrogen sulfide levels, and it can regulate bone metabolism balance in postmenopausal women. In this study, we aimed to investigate whether SQRDL is associated with susceptibility to PMOP in the Han Chinese population. METHODS A total of 3033 postmenopausal women, comprised of 1006 cases and 2027 controls, were recruited in the study. Twenty-two SNPs were selected for genotyping to evaluate the association of SQRDL gene with BMD and PMOP. Association analyses in both single marker and haplotype levels were performed for PMOP. Bone mineral density (BMD) was also utilized as a quantitative phenotype in further analyses. Bioinformatics tools were applied to predict the functional consequences of targeted polymorphisms in SQRDL. RESULTS The SNP rs1044032 (P = 6.42 × 10-5, OR = 0.80) was identified as significantly associated with PMOP. Three SNPs (rs1044032, rs2028589, and rs12913151) were found to be significantly associated with BMD. Although limited functional significance can be obtained for these polymorphisms, significant hits for association with PMOP were found. Moreover, further association analyses with BMD identified three SNPs with significantly independent effects. CONCLUSIONS Our evidence supported the significant role of SQRDL in the etiology of PMOP and suggest that it may be a genetic risk factor for BMD and osteoporosis in Han Chinese postmenopausal women.
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Affiliation(s)
- X Cai
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - X Yi
- Department of Pediatrics, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Y Zhang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - D Zhang
- Department of Orthopedic, The First Affiliated Hospital of Xi'an Jiaotong University, No.277, Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - L Zhi
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University Health Science Center, No.555, Youyi East Road, Xi'an, 710054, Shaanxi, China
| | - H Liu
- Department of Trauma, Honghui Hospital, Xi'an Jiaotong University Health Science Center, No.555, Youyi East Road, Xi'an, 710054, Shaanxi, China.
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Zhang R, Li R, Zhi L, Xu Y, Lin Y, Chen L. Expression profiles and associations of muscle regulatory factor (MRF) genes with growth traits in Tibetan chickens. Br Poult Sci 2017; 59:63-67. [PMID: 29019255 DOI: 10.1080/00071668.2017.1390212] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
1. Muscle regulatory factors (MRFs), including Myf5, Myf6 (MRF4/herculin), MyoD and MyoG (myogenin), play pivotal roles in muscle growth and development. Therefore, they are considered as candidate genes for meat production traits in livestock and poultry. 2. The objective of this study was to investigate the expression profiles of these genes in skeletal muscles (breast muscle and thigh muscle) at 5 developmental stages (0, 81, 119, 154 and 210 d old) of Tibetan chickens. Relationships between expressions of these genes and growth and carcass traits in these chickens were also estimated. 3. The expression profiles showed that in the breast muscle of both genders the mRNA levels of MRF genes were highest on the day of hatching, then declined significantly from d 0 to d 81, and fluctuated in a certain range from d 81 to d 210. However, the expression of Myf5, Myf6 and MyoG reached peaks in the thigh muscle in 118-d-old females and for MyoD in 154-d-old females, whereas the mRNA amounts of MRF genes in the male thigh muscle were in a narrow range from d 0 to d 210. 4. Correlation analysis suggested that gender had an influence on the relationships of MRF gene expression with growth traits. The RNA levels of MyoD, Myf5 genes in male breast muscle were positively related with several growth traits of Tibetan chickens (P < 0.05). No correlation was found between expressions of MRF genes and carcass traits of the chickens. 5. These results will provide a base for functional studies of MRF genes on growth and development of Tibetan chickens, as well as selective breeding and resource exploration.
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Affiliation(s)
- R Zhang
- a College of Life Sciences , Hubei Normal University , Huangshi , China
| | - R Li
- b Reproductive and endocrine laboratory , Chengdu Woman-Child Central Hospital , Chengdu , China
| | - L Zhi
- a College of Life Sciences , Hubei Normal University , Huangshi , China
| | - Y Xu
- c College of Life Science and Technology , Southwest University for Nationalities , Chengdu , China
| | - Y Lin
- c College of Life Science and Technology , Southwest University for Nationalities , Chengdu , China
| | - L Chen
- c College of Life Science and Technology , Southwest University for Nationalities , Chengdu , China
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Zhang R, Lin Y, Zhi L, Liao H, Zuo L, Li Z, Xu Y. Expression profiles and associations of adiponectin and adiponectin receptors with intramuscular fat in Tibetan chicken. Br Poult Sci 2017; 58:151-157. [DOI: 10.1080/00071668.2016.1268252] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- R. Zhang
- College of Life Sciences, Hubei Normal University, Huangshi, China
| | - Y. Lin
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
| | - L. Zhi
- College of Life Sciences, Hubei Normal University, Huangshi, China
| | - H. Liao
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
| | - L. Zuo
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
| | - Z. Li
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
| | - Y. Xu
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, China
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Zhi L, Yu Y, Li X, Wang D, Wang D. Molecular Control of Innate Immune Response to Pseudomonas aeruginosa Infection by Intestinal let-7 in Caenorhabditis elegans. PLoS Pathog 2017; 13:e1006152. [PMID: 28095464 PMCID: PMC5271417 DOI: 10.1371/journal.ppat.1006152] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 01/27/2017] [Accepted: 12/26/2016] [Indexed: 01/10/2023] Open
Abstract
The microRNA (miRNA) let-7 is an important miRNA identified in Caenorhabditis elegans and has been shown to be involved in the control of innate immunity. The underlying molecular mechanisms for let-7 regulation of innate immunity remain largely unclear. In this study, we investigated the molecular basis for intestinal let-7 in the regulation of innate immunity. Infection with Pseudomonas aeruginosa PA14 decreased let-7::GFP expression. Intestine- or neuron-specific activity of let-7 was required for its function in the regulation of innate immunity. During the control of innate immune response to P. aeruginosa PA14 infection, SDZ-24 was identified as a direct target for intestinal let-7. SDZ-24 was found to be predominantly expressed in the intestine, and P. aeruginosa PA14 infection increased SDZ-24::GFP expression. Intestinal let-7 regulated innate immune response to P. aeruginosa PA14 infection by suppressing both the expression and the function of SDZ-24. Knockout or RNA interference knockdown of sdz-24 dampened the resistance of let-7 mutant to P. aeruginosa PA14 infection. Intestinal overexpression of sdz-24 lacking 3'-UTR inhibited the susceptibility of nematodes overexpressing intestinal let-7 to P. aeruginosa PA14 infection. In contrast, we could observed the effects of intestinal let-7 on innate immunity in P. aeruginosa PA14 infected transgenic strain overexpressing sdz-24 containing 3'-UTR. In the intestine, certain SDZ-24-mediated signaling cascades were formed for nematodes against the P. aeruginosa PA14 infection. Our results highlight the crucial role of intestinal miRNAs in the regulation of the innate immune response to pathogenic infection.
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Affiliation(s)
- Lingtong Zhi
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education, Medical School, Southeast University, Nanjing, China
| | - Yonglin Yu
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education, Medical School, Southeast University, Nanjing, China
| | - Xueying Li
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education, Medical School, Southeast University, Nanjing, China
| | - Daoyong Wang
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education, Medical School, Southeast University, Nanjing, China
| | - Dayong Wang
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education, Medical School, Southeast University, Nanjing, China
- * E-mail:
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Abstract
Our results imply the important potential of mir-247 in warning the formation of GO toxicity in the range of μg L−1 in nematodes.
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Affiliation(s)
- Guosheng Xiao
- College of Biology and Food Engineering
- Chongqing Three Gorges University
- Wanzhou 404100
- China
| | - Lingtong Zhi
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Xuecheng Ding
- College of Life Sciences
- Nanjing Agricultural University
- Nanjing 210095
- China
| | - Qi Rui
- College of Life Sciences
- Nanjing Agricultural University
- Nanjing 210095
- China
| | - Dayong Wang
- College of Biology and Food Engineering
- Chongqing Three Gorges University
- Wanzhou 404100
- China
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
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Sun L, Zhi L, Shakoor S, Liao K, Wang D. microRNAs Involved in the Control of Innate Immunity in Candida Infected Caenorhabditis elegans. Sci Rep 2016; 6:36036. [PMID: 27796366 PMCID: PMC5086856 DOI: 10.1038/srep36036] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 10/10/2016] [Indexed: 12/15/2022] Open
Abstract
The role of microRNAs (miRNAs) in regulating innate immune response to Candida albicans infection in Caenorhabditis elegans is still largely unclear. Using small RNA SOLiD deep sequencing technique, we profiled the miRNAs that were dysregulated by C. albicans infection. We identified 16 miRNAs that were up-regulated and 4 miRNAs that were down-regulated in nematodes infected with C. albicans. Bioinformatics analysis implied that these dysregulated miRNAs may be involved in the control of many important biological processes. Using available mutants, we observed that mir-251 and mir-252 loss-of-function mutants were resistant to C. albicans infection, whereas mir-360 mutants were hypersensitive to C. albicans infection. The expression pattern of antimicrobial genes suggested that mir-251, mir-252, and mir-360 played crucial roles in regulating the innate immune response to C. albicans infection. Fungal burden might be closely associated with altered lifespan and innate immune response in mir-251, mir-252, and mir-360 mutants. Moreover, mir-251 and mir-252 might function downstream of p38 mitogen activated protein kinase (MAPK) or IGF-1/insulin-like pathway to regulate the innate immune response to C. albicans infection. Our results provide an important molecular basis for further elucidating how miRNA-mRNA networks may control the innate immune response to C. albicans infection.
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Affiliation(s)
- Lingmei Sun
- Key Laboratory of Developmental Genes and Human Disease in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Lingtong Zhi
- Key Laboratory of Developmental Genes and Human Disease in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Shumaila Shakoor
- Key Laboratory of Developmental Genes and Human Disease in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Kai Liao
- Key Laboratory of Developmental Genes and Human Disease in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Dayong Wang
- Key Laboratory of Developmental Genes and Human Disease in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
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Zhao Y, Zhi L, Wu Q, Yu Y, Sun Q, Wang D. p38 MAPK-SKN-1/Nrf signaling cascade is required for intestinal barrier against graphene oxide toxicity in Caenorhabditis elegans. Nanotoxicology 2016; 10:1469-1479. [PMID: 27615004 DOI: 10.1080/17435390.2016.1235738] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Biological barrier plays a crucial role for organisms against the possible toxicity from engineered nanomaterials (ENMs). Graphene oxide (GO) has been proven to cause potential toxicity on organisms. However, the molecular mechanisms for intestinal barrier of animals against GO toxicity are largely unclear. Using in vivo assay system of Caenorhabditis elegans, we found that mutation of genes encoding core p38 mitogen-activated protein kinase (MAPK) signaling pathway caused susceptible property to GO toxicity and enhanced translocation of GO into the body of nematodes. Genetic assays indicated that SKN-1/Nrf functioned downstream of p38 MAPK signaling pathway to regulate GO toxicity and translocation. Transcription factor of SKN-1 could regulate GO toxicity and translocation at least through function of its targeted gene of gst-4 encoding one of phase II detoxification proteins. Moreover, intestine-specific RNA interference (RNAi) assay demonstrated that the p38 MAPK-SKN-1/Nrf signaling cascade could function in intestine to regulate GO toxicity and intestinal permeability in GO exposed nematodes. Therefore, p38 MAPK-SKN-1/Nrf signaling cascade may act as an important molecular basis for intestinal barrier against GO toxicity in organisms. Exposure to GO induced significantly increased expression of genes encoding p38 MAPK-SKN-1/Nrf signaling cascade, which further implies that the identified p38 MAPK-SKN-1/Nrf signaling cascade may encode a protection mechanism for nematodes in intestine to be against GO toxicity.
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Affiliation(s)
- Yunli Zhao
- a Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University , Nanjing , China , and.,b Department of Preventive Medicine , Bengbu Medical College , Bengbu , China
| | - Lingtong Zhi
- a Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University , Nanjing , China , and
| | - Qiuli Wu
- a Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University , Nanjing , China , and
| | - Yonglin Yu
- a Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University , Nanjing , China , and
| | - Qiqing Sun
- a Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University , Nanjing , China , and
| | - Dayong Wang
- a Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University , Nanjing , China , and
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Wu Q, Zhi L, Qu Y, Wang D. Quantum dots increased fat storage in intestine of Caenorhabditis elegans by influencing molecular basis for fatty acid metabolism. Nanomedicine: Nanotechnology, Biology and Medicine 2016; 12:1175-84. [DOI: 10.1016/j.nano.2016.01.016] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Revised: 12/23/2015] [Accepted: 01/27/2016] [Indexed: 02/07/2023]
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Yu Y, Zhi L, Wu Q, Jing L, Wang D. NPR-9 regulates the innate immune response in Caenorhabditis elegans by antagonizing the activity of AIB interneurons. Cell Mol Immunol 2016; 15:27-37. [PMID: 27133473 DOI: 10.1038/cmi.2016.8] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 01/23/2016] [Accepted: 01/24/2016] [Indexed: 11/09/2022] Open
Abstract
npr-9 encodes a homologue of the gastrin-releasing peptide receptor (GRPR) and is expressed in AIB interneurons. In this study, we investigated the role of NPR-9 in the neuronal control of innate immunity using the model system Caenorhabditis elegans. After exposure to Pseudomonas aeruginosa PA14, npr-9(tm1652) mutants showed resistance to infection, decreased PA14 colonization and increased expression of immunity-related genes. Nematodes overexpressing NPR-9 exhibited increased susceptibility to infection, increased PA14 colonization and reduced expression of immunity-related genes. In nematodes, ChR2-mediated AIB interneuron activation strengthened the innate immune response and decreased PA14 colonization. Overexpression of NPR-9 suppressed the innate immune response and increased PA14 colonization in nematodes with the activation of AIB interneurons mediated by ChR2 or by expressing pkc-1(gf) in AIB interneurons. We, therefore, hypothesize that NPR-9 regulates the innate immune response by antagonizing the activity of AIB interneurons. Furthermore, expression of GRPR, the human homologue of NPR-9, could largely mimic NPR-9 function by regulating innate immunity in nematodes. Our results provide insight into the pivotal role of interneurons in controlling innate immunity and the complex biological functions of GRPRs.
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Affiliation(s)
- Yonglin Yu
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Lingtong Zhi
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Qiuli Wu
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Lina Jing
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Dayong Wang
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
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Yu Y, Zhi L, Guan X, Wang D, Wang D. FLP-4 neuropeptide and its receptor in a neuronal circuit regulate preference choice through functions of ASH-2 trithorax complex in Caenorhabditis elegans. Sci Rep 2016; 6:21485. [PMID: 26887501 PMCID: PMC4757837 DOI: 10.1038/srep21485] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 01/25/2016] [Indexed: 01/19/2023] Open
Abstract
Preference choice on food is an important response strategy for animals living in the environment. Using assay system of preference choice on bacterial foods, OP50 and PA14, we identified the involvement of ADL sensory neurons in the control of preference choice in Caenorhabditis elegans. Both genetically silencing and ChR2-mediated activation of ADL sensory neurons significantly affected preference choice. ADL regulated preference choice by inhibiting function of G protein-coupled receptor (GPCR)/SRH-220. ADL sensory neurons might regulate preference choice through peptidergic signals of FLP-4 and NLP-10, and function of FLP-4 or NLP-10 in regulating preference choice was regulated by SRH-220. FLP-4 released from ADL sensory neurons further regulated preference choice through its receptor of NPR-4 in AIB interneurons. In AIB interneurons, NPR-4 was involved in the control of preference choice by activating the functions of ASH-2 trithorax complex consisting of SET-2, ASH-2, and WDR-5, implying the crucial role of molecular machinery of trimethylation of histone H3K4 in the preference choice control. The identified novel neuronal circuit and the underlying molecular mechanisms will strengthen our understanding neuronal basis of preference choice in animals.
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Affiliation(s)
- Yonglin Yu
- Key Laboratory of Developmental Genes and Human Disease in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Lingtong Zhi
- Key Laboratory of Developmental Genes and Human Disease in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Xiangmin Guan
- Key Laboratory of Developmental Genes and Human Disease in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Daoyong Wang
- Key Laboratory of Developmental Genes and Human Disease in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Dayong Wang
- Key Laboratory of Developmental Genes and Human Disease in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
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24
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Zhi L, Fu W, Wang X, Wang D. ACS-22, a protein homologous to mammalian fatty acid transport protein 4, is essential for the control of the toxicity and translocation of multi-walled carbon nanotubes in Caenorhabditis elegans. RSC Adv 2016. [DOI: 10.1039/c5ra23543j] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ACS-22 plays an essential role in regulating toxicity and translocation of MWCNTs.
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Affiliation(s)
- Lingtong Zhi
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Wei Fu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Xiong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
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25
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Li W, Chen M, Li W, You C, Wei J, Zhi L. Synthesis of air stable silver nanoparticles and their application as conductive ink on paper based flexible electronics. ACTA ACUST UNITED AC 2014. [DOI: 10.1179/1432891714z.000000000867] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- W. Li
- School of Materials Science and EngineeringTianjin University, Tianjin 300072, China
| | - M. Chen
- School of Materials Science and EngineeringTianjin University of Technology, Tianjin 300384, China
| | - W. Li
- School of Materials Science and EngineeringTianjin University of Technology, Tianjin 300384, China
| | - C. You
- School of Materials Science and EngineeringTianjin University of Technology, Tianjin 300384, China
| | - J. Wei
- School of Materials Science and EngineeringTianjin University of Technology, Tianjin 300384, China
| | - L. Zhi
- School of Materials Science and EngineeringTianjin University of Technology, Tianjin 300384, China
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26
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Zhi L, Dong L, Kong D, Sun B, Sun Q, Grundy D, Zhang G, Rong W. Curcumin acts via transient receptor potential vanilloid-1 receptors to inhibit gut nociception and reverses visceral hyperalgesia. Neurogastroenterol Motil 2013; 25:e429-40. [PMID: 23638900 DOI: 10.1111/nmo.12145] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 03/28/2013] [Indexed: 12/24/2022]
Abstract
BACKGROUND An antinociceptive effect has been reported for curcumin in animal models and in humans, but the molecular mechanisms of curcumin's effect remain undefined. In this study, we explored the possibility that curcumin inhibit visceral nociception via antagonizing the transient receptor potential vanilloid-1 (TRPV1) receptor. METHODS The effects of curcumin were explored using two experimental models: viscero-motor response (VMR) to colorectal distension (CRD) in rats and jejunal afferent firing in the ex vivo mouse jejunum preparations [TRPV1 knockout (KO) and wild-type mice, naive and trinitrobenzene sulfonic acid (TNBS)-treated Kunming mice]. In addition, capsaicin-induced calcium transients and whole-cell currents were examined in acutely dissociated dorsal root ganglia (DRG) neurons. KEY RESULTS In the anesthetized rat, curcumin (4 mg kg(-1) min(-1) for 3 min) caused a marked and rapidly reversible inhibition of CRD-induced VMRs. In the mouse jejunum, the mesenteric afferent nerve response to ramp distension was attenuated by curcumin (3, 10 μmol L(-1) ), an effect that was significantly reduced in TRPV1 KO mice compared with wild-type (WT) controls. Moreover, in WT mice, curcumin (1-30 μmol L(-1) ) was found to inhibit the afferent responses to capsaicin in a concentration-dependent manner. Trinitrobenzene sulfonic acid-induced hypersensitivity of jejunal afferents was also attenuated by curcumin. Curcumin potently inhibited capsaicin-induced rise in intracellular calcium and inward currents in mouse or rat DRG neurons. CONCLUSIONS & INFERENCES Our results provide strong evidence that curcumin inhibit visceral nociception via antagonizing TRPV1 and may be a promising lead for the treatment of functional gastrointestinal diseases.
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Affiliation(s)
- L Zhi
- Department of Physiology, Shanghai Jiaotong University School of Medicine, Shanghai, China
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27
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Zhi L, Qiao XY, Qi H, Yanling W, Rongkun L. Additive effects of obstructive sleep apnoea syndrome and hypertension on the inflammatory reaction. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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28
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Zhi L, Xilie L, Jinxiu Z, Jianfeng W. e0617 Research of relation between the type of left ventricular remodelling and atrial fibrillation in patients with essential hypertension. Heart 2010. [DOI: 10.1136/hrt.2010.208967.617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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29
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Bousquet J, Kiley J, Bateman ED, Viegi G, Cruz AA, Khaltaev N, Aït Khaled N, Baena-Cagnani CE, Barreto ML, Billo N, Canonica GW, Carlsen KH, Chavannes N, Chuchalin A, Drazen J, Fabbri LM, Gerbase MW, Humbert M, Joos G, Masjedi MR, Makino S, Rabe K, To T, Zhi L. Prioritised research agenda for prevention and control of chronic respiratory diseases. Eur Respir J 2010; 36:995-1001. [PMID: 20223919 DOI: 10.1183/09031936.00012610] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The 2008-2013 World Health Organization (WHO) action plan on noncommunicable diseases (NCDs) includes chronic respiratory diseases as one of its four priorities. Major chronic respiratory diseases (CRDs) include asthma and rhinitis, chronic obstructive pulmonary disease, occupational lung diseases, sleep-disordered breathing, pulmonary hypertension, bronchiectiasis and pulmonary interstitial diseases. A billion people suffer from chronic respiratory diseases, the majority being in developing countries. CRDs have major adverse effects on the life and disability of patients. Effective intervention plans can prevent and control CRDs, thus reducing morbidity and mortality. A prioritised research agenda should encapsulate all of these considerations in the frame of the global fight against NCDs. This requires both CRD-targeted interventions and transverse NCD programmes which include CRDs, with emphasis on health promotion and disease prevention.
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Affiliation(s)
- J Bousquet
- Service des Maladies Respiratories Hopital Arnaud De Villeneuve, 34295 Montpellier cedex 5, France.
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30
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Abstract
IEX-1 (Immediate Early response gene X-1) is a stress-inducible gene. It suppresses production of reactive oxygen species (ROS) and protects cells from apoptosis induced by a wide range of stimuli, but the underlying mechanism is not known. This study reveals that IEX-1 targets the mitochondrial F1Fo-ATPase Inhibitor (IF1) for degradation, resulting in acceleration of ATP hydrolysis, concomitant with reduction in ROS production. A prominent role for IF1 degradation in the function of IEX-1 was corroborated by siRNA-mediated gene silencing of IF1 that recapitulated the effects of IEX-1 on ATP hydrolysis and ROS production. Moreover, progressive C-terminal truncation studies demonstrated that IEX-1 interacted with the C terminus of IF1 and the interaction might render IF1 prone to degradation by an as yet unidentified mitochondrial protease. In support of a physiological importance of IEX-1 in the modulation of IF1 expression, gene-targeted deletion of IEX-1 stabilized IF1 and reduced mitochondrial F1Fo-ATPase activity in vivo. The altered activity of the F1Fo enzyme may account for a metabolic switch from oxidative phosphorylation toward glycolysis in IEX-1 deficient cells. Thus, IEX-1 deficient cells were more susceptible to glucose deprivation than wild type counterparts and displayed increased glucose uptake and lactate production in hypoxic conditions. The cells were also relatively refractory to oligomycin-mediated inhibition of ATP production. The studies offer novel insights into the primary role of IEX-1 in regulating a balance between energy provision and ROS production.
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Affiliation(s)
- L Shen
- Wellman Center of Photomedicine, Massachusetts General Hospital, and Department of Dermatology, Harvard Medical School, Boston, MA 02114, USA
| | - L Zhi
- Wellman Center of Photomedicine, Massachusetts General Hospital, and Department of Dermatology, Harvard Medical School, Boston, MA 02114, USA
| | - W Hu
- Wellman Center of Photomedicine, Massachusetts General Hospital, and Department of Dermatology, Harvard Medical School, Boston, MA 02114, USA
| | - MX Wu
- Wellman Center of Photomedicine, Massachusetts General Hospital, and Department of Dermatology, Harvard Medical School, Boston, MA 02114, USA
- Harvard-MIT Division of Health Sciences and Technology, Boston, MA 02115, USA
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31
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Yun-Peng L, Jingdong Z, Yuee T, Bo J, Ping Y, Mingfang Z, Jing S, Lingyun Z, Zhi L. Randomized phase II study of thalidomide for the control of delayed chemotherapy-induced nausea and vomiting. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.9614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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32
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Xiangke W, Wenming D, Zhi L, Zuyi T. Sorption and desorption of radiocesium on red earth and its solid components: relative contribution and hysteresis. Appl Radiat Isot 2000; 52:813-9. [PMID: 10800717 DOI: 10.1016/s0969-8043(99)00155-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The relative contributions of organic matter and iron oxides to the Cs+ sorption on red earth were investigated by using the batch technique and selective extraction methods. The sorption and desorption isotherms and the distribution coefficients of Cs+ on the untreated red earth and the three treated soils to remove organic matter, iron oxides and organic matter plus iron oxides were determined at 20 degrees C, pH 6.3+/-0.2, in the presence of 0.01 mol/l CaCl2. It was found that all the isotherms are linear in the Cs+ concentration range used here, that the sorption desorption hysteresis on the red earth actually occurs, and besides the clay minerals, the organic matter present in the red earth is a significant trap of Cs+ and is responsible for the hysteresis instead of the iron oxides.
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Affiliation(s)
- W Xiangke
- Radiochemistry Laboratory, College of Chemistry and Chemical Engineering, Lanzhou University, People's Republic of China
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33
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Zhi L, Tegley CM, Pio B, West SJ, Marschke KB, Mais DE, Jones TK. Nonsteroidal progesterone receptor antagonists based on 6-thiophenehydroquinolines. Bioorg Med Chem Lett 2000; 10:415-8. [PMID: 10743938 DOI: 10.1016/s0960-894x(00)00011-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Synthesis and biological evaluation of 6-thiophene 1,2-dihydro or 1,2,3,4-tetrahydroquinoline derivatives resulted in a number of potent nonsteroidal antiprogestins.
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Affiliation(s)
- L Zhi
- Ligand Pharmaceuticals, San Diego, CA 92121, USA.
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34
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Zhi L, Tegley CM, Marschke KB, Mais DE, Jones TK. 5-Aryl-1,2,3,4-tetrahydrochromeno[3,4-f]quinolin-3-ones as a novel class of nonsteroidal progesterone receptor agonists: effect of A-ring modification. J Med Chem 1999; 42:1466-72. [PMID: 10212133 DOI: 10.1021/jm980723h] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Optimization of the 1,2-dihydroquinoline A-ring of a nonsteroidal human progesterone receptor (hPR) agonist pharmacophore (1) was performed by using the cotransfection and receptor binding assays as guides. The 3-keto group was discovered to regain the potent agonist activity which was lost upon removal of the 3,4-olefin, and it led to a novel hPR agonist series, 5-aryl-1,2,3,4-tetrahydrochromeno[3, 4-f]quinolin-3-ones. The new progestins demonstrated potent hPR agonist activity in the cotransfection assay and high binding affinity similar to progesterone. T47D human breast cancer cell line was employed for further characterization of the new progestins and a number of reference analogues. It was found that the new 3-keto analogues showed full agonist activity in the T47D assay, while the reference compounds from other related nonsteroidal hPR agonist series exhibited only partial agonist activity.
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Affiliation(s)
- L Zhi
- Departments of Medicinal Chemistry, New Leads Discovery, and Endocrine Research, Ligand Pharmaceuticals, Inc., 10275 Science Center Drive, San Diego, California 92121, USA
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35
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Zhi L, Tegley CM, Marschke KB, Jones TK. Switching androgen receptor antagonists to agonists by modifying C-ring substituents on piperidino[3,2-g]quinolinone. Bioorg Med Chem Lett 1999; 9:1009-12. [PMID: 10230629 DOI: 10.1016/s0960-894x(99)00119-5] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
New nonsteroidal human androgen receptor (hAR) agonists were developed from an hAR antagonist pharmacophore, 2(1H)-piperidino[3,2-g]quinolinone. (+/-)-trans-7,8-Diethyl-4-trifluoromethyl-2(H)-piperidino-[3,2-g]quinoli none was synthesized and demonstrated potent hAR agonist activity (EC50=3 nM) in the cell-based cotransfection assay and high binding affinity (Ki=16 nM) in the competitive receptor binding assay.
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Affiliation(s)
- L Zhi
- Department of Medicinal Chemistry, Ligand Pharmaceuticals, Inc., San Diego, CA 92121, USA
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36
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Edwards JP, Higuchi RI, Winn DT, Pooley CL, Caferro TR, Hamann LG, Zhi L, Marschke KB, Goldman ME, Jones TK. Nonsteroidal androgen receptor agonists based on 4-(trifluoromethyl)-2H-pyrano[3,2-g]quinolin-2-one. Bioorg Med Chem Lett 1999; 9:1003-8. [PMID: 10230628 DOI: 10.1016/s0960-894x(99)00118-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A series of 2H-pyrano[3,2-g]quinolin-2-ones was prepared and tested for the ability to modulate the transcriptional activity of the human androgen receptor (hAR). The parent compound, 4-(trifluoromethyl)-2H-pyrano[3,2-g]quinolin-2-one, displayed moderate interaction with hAR, but substituted analogues were potent hAR modulators in vitro as measured by an hAR cotransfection assay in CV-1 cells and bound to hAR with high affinity in a whole cell assay. Several analogues were able to activate hAR-mediated gene transcription more potently and efficaciously than dihydrotestosterone.
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Affiliation(s)
- J P Edwards
- Department of Medicinal Chemistry, Ligand Pharmaceuticals, San Diego, CA 92121, USA
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37
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Zhi L, Tegley CM, Edwards JP, West SJ, Marschke KB, Gottardis MM, Mais DE, Jones TK. 5-Alkyl 1,2-dihydrochromeno[3,4-f]quinolines: a novel class of nonsteroidal progesterone receptor modulators. Bioorg Med Chem Lett 1998; 8:3365-70. [PMID: 9873735 DOI: 10.1016/s0960-894x(98)00608-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of nonsteroidal human progesterone receptor (hPR) agonists, 5-alkyl 1,2-dihydrochromeno[3,4-f]quinolines, was synthesized and evaluated in cotransfection and competitive receptor binding assays. The 5-alkyl substitution was shown to be responsible for the agonist activity and substitution at C9 dramatically enhanced the potency. A number of analogues in this series showed activities similar to or better than progesterone in the cotransfection and binding assays and analogue 15 exhibited similar in vivo activity as medroxyprogesterone acetate (MPA) in murine uterine wet weight/mammary gland morphology assays.
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Affiliation(s)
- L Zhi
- Department of Medicinal Chemistry, Ligand Pharmaceuticals, Inc., San Diego, CA 92121, USA
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38
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Tegley CM, Zhi L, Marschke KB, Gottardis MM, Yang Q, Jones TK. 5-Benzylidene 1,2-dihydrochromeno[3,4-f]quinolines, a novel class of nonsteroidal human progesterone receptor agonists. J Med Chem 1998; 41:4354-9. [PMID: 9784110 DOI: 10.1021/jm980366a] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel series of nonsteroidal progestins, 5-benzylidene-1, 2-dihydrochromeno[3,4-f]quinolines (2), was discovered, and a preliminary structure-activity relationship study around the 5-benzylidene ring generated several potent human progesterone receptor agonists (compounds 8, 16). These new progestins showed biological activities (EC50 = 5.7 and 7.6 nM) similar to progesterone (EC50 = 2.9 nM) in the cotransfection assay with high efficacy (132% and 166%) and binding affinity (Ki = 0.66 and 0.83 nM) similar to medroxyprogesterone acetate (MPA) (Ki = 0.34 nM). A representative analogue, 8, demonstrated similar oral potency to MPA in the uterine wet weight/mammary gland morphology assay in ovariectomized rats.
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Affiliation(s)
- C M Tegley
- Department of Medicinal Chemistry, New Leads Discovery, and Endocrine Research, Ligand Pharmaceuticals, Inc., 10275 Science Center Drive, San Diego, California 92121, USA
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39
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Hamann LG, Winn DT, Pooley CL, Tegley CM, West SJ, Farmer LJ, Zhi L, Edwards JP, Marschke KB, Mais DE, Goldman ME, Jones TK. Nonsteroidal progesterone receptor antagonists based on a conformationally-restricted subseries of 6-aryl-1,2-dihydro-2,2,4-trimethylquinolines. Bioorg Med Chem Lett 1998; 8:2731-6. [PMID: 9873612 DOI: 10.1016/s0960-894x(98)00482-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A series of nonsteroidal human progesterone receptor (hPR) antagonists based on conformationally-restricted analogues of a 6-aryl-1,2-dihydro-2,2,4-trimethylquinoline pharmacophore were synthesized and evaluated for their ability to bind to the human progesterone receptor and inhibit progesterone-stimulated reporter gene expression in mammalian cells.
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Affiliation(s)
- L G Hamann
- Department of Medicinal Chemistry, Ligand Pharmaceuticals, San Diego, CA 92121, USA
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40
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Edwards JP, Zhi L, Pooley CL, Tegley CM, West SJ, Wang MW, Gottardis MM, Pathirana C, Schrader WT, Jones TK. Preparation, resolution, and biological evaluation of 5-aryl-1, 2-dihydro-5H-chromeno[3,4-f]quinolines: potent, orally active, nonsteroidal progesterone receptor agonists. J Med Chem 1998; 41:2779-85. [PMID: 9667968 DOI: 10.1021/jm980190c] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Two potent nonsteroidal progestins from the 5-aryl-1, 2-dihydro-5H-chromeno[3,4-f]quinoline class (LG120746 and LG120747) were selected for scale-up, resolution, and biological evaluation of the purified enantiomers. For each quinoline, the levorotatory enantiomer was determined to be the more potent agonist of the human progesterone receptor isoform B (hPR-B) (EC50 < 3 nM), but the dextrorotatory enantiomers retained significant PR modulatory activity (EC50 < 200 nM). In two in vivo rodent models of progestational activity, a pregnancy maintenance assay and a uterine wet weight assay, the two eutomers displayed potent progesterone-like effects. In a third model for progestational activity, the mammary end bud assay, these compounds were significantly less active. These studies demonstrate that certain members of this class of selective progesterone receptor modulators display encouraging and potentially useful tissue-selective progestational effects.
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Affiliation(s)
- J P Edwards
- Departments of Medicinal Chemistry and Endocrine Research, Ligand Pharmaceuticals Inc., San Diego, California 92121, USA.
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41
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Hamann LG, Higuchi RI, Zhi L, Edwards JP, Wang XN, Marschke KB, Kong JW, Farmer LJ, Jones TK. Synthesis and biological activity of a novel series of nonsteroidal, peripherally selective androgen receptor antagonists derived from 1,2-dihydropyridono[5,6-g]quinolines. J Med Chem 1998; 41:623-39. [PMID: 9484511 DOI: 10.1021/jm970699s] [Citation(s) in RCA: 124] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A new nonsteroidal antiandrogenic pharmacophore has been discovered using cell-based cotransfection assays with human androgen receptor (hAR). This series of AR antagonists is structurally characterized by a linear tricyclic 1,2-dihydropyridono[5,6-g]quinoline core. Analogues inhibit AR-mediated reporter gene expression and bind to AR as potently as or better than any known AR antagonists. Several analogues also showed excellent in vivo activity in classic rodent models of AR antagonism, inhibiting growth of rat ventral prostate and seminal vesicles, without accompanying increases in serum gonadotropin and testosterone levels, as is seen with other AR antagonists. Investigations of structure-activity relationships surrounding this pharmacophore resulted in molecules with complete specificity for AR, antagonist activity on an AR mutant commonly observed in prostate cancer patients, and improved in vivo efficacy. Molecules based on this series of compounds have the potential to provide unique and effective clinical opportunities for treatment of prostate cancer and other androgen-dependent diseases.
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Affiliation(s)
- L G Hamann
- Department of Medicinal Chemistry, Ligand Pharmaceuticals, Inc., San Diego, California 92121, USA.
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42
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Zhi L, Tegley CM, Kallel EA, Marschke KB, Mais DE, Gottardis MM, Jones TK. 5-Aryl-1,2-dihydrochromeno[3,4-f]quinolines: a novel class of nonsteroidal human progesterone receptor agonists. J Med Chem 1998; 41:291-302. [PMID: 9464360 DOI: 10.1021/jm9705768] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The development of a novel class of nonsteroidal human progesterone receptor (hPR) agonists, 5-aryl-1,2-dihydro-5H-chromeno[3,4-f]quinolines 2, is described. The introduction of a 5-aryl group into the 1,2-dihydrocoumarino[3,4-f]quinoline core 1 is the key for progestational activities. The structure-activity relationship (SAR) studies of the 5-aryl substituents generated a series of potent hPR agonists, which exhibited similar biological activity (EC50 = 8-30 nM) to the natural hormone progesterone (EC50 = 2.9 nM) in cell-based assays with efficacies ranging from 28% to 96%. Most of the analogues displayed similar or greater binding affinity (Ki = 0.41-3.6 nM) than progesterone (Ki = 3.5 nM). Three representative analogues (13, 15, and 24) demonstrated in vivo activities in mammary gland morphology/uterine wet weight assay in ovariectomized rats.
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MESH Headings
- Animals
- Binding, Competitive
- Female
- Humans
- In Vitro Techniques
- Magnetic Resonance Spectroscopy
- Mammary Glands, Animal/drug effects
- Mammary Glands, Animal/metabolism
- Quinolines/chemistry
- Quinolines/metabolism
- Quinolines/pharmacology
- Rats
- Rats, Sprague-Dawley
- Receptors, Androgen/metabolism
- Receptors, Estrogen/metabolism
- Receptors, Glucocorticoid/metabolism
- Receptors, Mineralocorticoid/metabolism
- Receptors, Progesterone/agonists
- Receptors, Progesterone/metabolism
- Structure-Activity Relationship
- Uterus/drug effects
- Uterus/metabolism
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Affiliation(s)
- L Zhi
- Department of Medicinal Chemistry, Ligand Pharmaceuticals, Inc., San Diego, California 92121, USA.
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43
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Zhi L, Karesh WB, Janczewski DN, Frazier-Taylor H, Sajuthi D, Gombek F, Andau M, Martenson JS, O'Brien SJ. Genomic differentiation among natural populations of orang-utan (Pongo pygmaeus). Curr Biol 1996; 6:1326-36. [PMID: 8939569 DOI: 10.1016/s0960-9822(02)70719-7] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Orang-utans exist today in small isolated populations on the islands of Borneo (subspecies Pongo pygmaeus pygmaeus) and Sumatra (subspecies P. p. abelii). Although, on the basis of their morphological, behavioral and cytogenetical characteristics, the Bornean and Sumatran orang-utan populations are generally considered as two separate subspecies, there is no universal agreement as to whether their genetic differentiation is sufficient to consider and manage them as species, subspecies or population level taxonomic units. A more precise phylogenetic description would affect many conservation management decisions about captive and free-ranging orang-utans. RESULTS We analyzed the amount and patterns of molecular genetic variation in orang-utan populations using cellular DNA from orang-utans from two locations in Sumatra and nine locations-representing four isolated populations-in Borneo. Genetic and phylogenetic analyses of mitochondrial DNA restriction fragment length polymorphisms, nuclear minisatellite (or variable number tandem repeat) loci and mitochondrial 16S ribosomal RNA sequences led to three major findings. First, the genetic distance and phylogenetic differentiation between Sumatran and Bornean orang-utans is large, greater than that between the common chimpanzee, Pan troglodytes, and the pygmy chimpanzee or bonobo, Pan paniscus. The genetic distance suggests that the two island subspecies diverged approximately 1.5-1.7 million years ago, well before the two islands separated and long enough for species-level differentiation. Second, there is considerable endemic genetic diversity within the Bornean and Sumatran orang-utan populations, suggesting that they have not experienced recent bottlenecks or founder effects. And third, there is little genetic differentiation among four geographically isolated populations of Bornean orang-utans, consistent with gene flow having occurred between them until recently. CONCLUSIONS Our results are consistent with the view that the genetic differentiation between Sumatran and Bornean orang-utans has reached the level of distinct species. Furthermore, our findings indicate that there is not a genetic imperative for the separate management of geographically isolated Bornean populations.
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Affiliation(s)
- L Zhi
- Laboratory of Genomic Diversity, National Cancer Institute, Frederick, Maryland 21702-1201, USA
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Boehm MF, Zhang L, Zhi L, McClurg MR, Berger E, Wagoner M, Mais DE, Suto CM, Davies JA, Heyman RA. Design and synthesis of potent retinoid X receptor selective ligands that induce apoptosis in leukemia cells. J Med Chem 1995; 38:3146-55. [PMID: 7636877 DOI: 10.1021/jm00016a018] [Citation(s) in RCA: 248] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Structural modifications of the retinoid X receptor (RXR) selective compound 4-[1-(3,5,5,8,8-pentamethyl-5,6,7,8-tetrahydro-2- naphthyl)ethenyl]benzoic acid (LGD1069), which is currently in phase I/IIA clinical trials for cancer and dermatological indications, have resulted in the identification of increasingly potent retinoids with > 1000-fold selectivity for the RXRs. This paper describes the design and preparation of a series of RXR selective retinoids as well as the biological data obtained from cotransfection and competitive binding assays which were used to evaluate their potency and selectivity. The most potent and selective of the analogs is 6-[1-(3,5,5,8,8-pentamethyl-5,6,7,8-tetrahydronaphthalen-2- yl)cyclopropyl]nicotinic acid (12d; LG100268). This compound has proven useful for investigating RXR dependent biological pathways including the induction of programmed cell death (PCD) and transglutaminase (TGase) activity. Our studies indicate that the induction of PCD and TGase in human leukemic myeloid cells is dependent upon activation of RXR-mediated pathways.
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Affiliation(s)
- M F Boehm
- Department of Retinoid Chemistry Research, Ligand Pharmaceuticals, Inc., San Diego, California 92121, USA
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