1
|
Fang R, Zhang RS, Wang XT, Ye SB, Xia QY, Rao Q. [Clinicopathological and molecular genetic characteristics of 10 cases of epithelioid sarcoma]. Zhonghua Bing Li Xue Za Zhi 2024; 53:293-295. [PMID: 38433059 DOI: 10.3760/cma.j.cn112151-20231016-00266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Affiliation(s)
- R Fang
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - R S Zhang
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - X T Wang
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - S B Ye
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - Q Y Xia
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - Q Rao
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| |
Collapse
|
2
|
deBoer RJ, Febbraro M, Bardayan DW, Boomershine C, Brandenburg K, Brune C, Coil S, Couder M, Derkin J, Dede S, Fang R, Fritsch A, Gula A, Gyürky G, Hackett B, Hamad G, Jones-Alberty Y, Kelmar R, Manukyan K, Matney M, McDonaugh J, Meisel Z, Moylan S, Nattress J, Odell D, O'Malley P, Paris MW, Robertson D, Shahina, Singh N, Smith K, Smith MS, Stech E, Tan W, Wiescher M. Measurement of the ^{13}C(α, n_{0})^{16}O Differential Cross Section from 0.8 to 6.5 MeV. Phys Rev Lett 2024; 132:062702. [PMID: 38394565 DOI: 10.1103/physrevlett.132.062702] [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] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 09/05/2023] [Accepted: 01/17/2024] [Indexed: 02/25/2024]
Abstract
The cross section of the ^{13}C(α,n)^{16}O reaction is needed for nuclear astrophysics and applications to a precision of 10% or better, yet inconsistencies among 50 years of experimental studies currently lead to an uncertainty of ≈15%. Using a state-of-the-art neutron detection array, we have performed a high resolution differential cross section study covering a broad energy range. These measurements result in a dramatic improvement in the extrapolation of the cross section to stellar energies potentially reducing the uncertainty to ≈5% and resolving long standing discrepancies in higher energy data.
Collapse
Affiliation(s)
- R J deBoer
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - M Febbraro
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - D W Bardayan
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - C Boomershine
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - K Brandenburg
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - C Brune
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - S Coil
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - M Couder
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - J Derkin
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - S Dede
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - R Fang
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - A Fritsch
- Department of Physics, Gonzaga University, Spokane, Washington 99258, USA
| | - A Gula
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Gy Gyürky
- Institute for Nuclear Research (Atomki), P.O.B 51, H-4001 Debrecen, Hungary
| | - B Hackett
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - G Hamad
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - Y Jones-Alberty
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - R Kelmar
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - K Manukyan
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - M Matney
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - J McDonaugh
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Z Meisel
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - S Moylan
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - J Nattress
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - D Odell
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - P O'Malley
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - M W Paris
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D Robertson
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Shahina
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - N Singh
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - K Smith
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M S Smith
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - E Stech
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - W Tan
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - M Wiescher
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| |
Collapse
|
3
|
Li L, Zhou A, Wei Y, Liu F, Li P, Fang R, Ma L, Zhang S, Wang L, Liu J, Richard HT, Chen Y, Wang H, Huang S. Critical role of lncEPAT in coupling dysregulated EGFR pathway and histone H2A deubiquitination during glioblastoma tumorigenesis. Sci Adv 2022; 8:eabn2571. [PMID: 36197973 PMCID: PMC9534510 DOI: 10.1126/sciadv.abn2571] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 08/18/2022] [Indexed: 06/16/2023]
Abstract
Histone 2A (H2A) monoubiquitination is a fundamental epigenetics mechanism of gene expression, which plays a critical role in regulating cell fate. However, it is unknown if H2A ubiquitination is involved in EGFR-driven tumorigenesis. In the current study, we have characterized a previously unidentified oncogenic lncRNA (lncEPAT) that mediates the integration of the dysregulated EGFR pathway with H2A deubiquitination in tumorigenesis. LncEPAT was induced by the EGFR pathway, and high-level lncEPAT expression positively correlated with the glioma grade and predicted poor survival of glioma patients. Mass spectrometry analyses revealed that lncEPAT specifically interacted with deubiquitinase USP16. LncEPAT inhibited USP16's recruitment to chromatin, thereby blocking USP16-mediated H2A deubiquitination and repressing target gene expression, including CDKN1A and CLUSTERIN. Depletion of lncEPAT promoted USP16-induced cell cycle arrest and cellular senescence, and then repressed GBM cell tumorigenesis. Thus, the EGFR-lncEPAT-ubH2A coupling represents a previously unidentified mechanism for epigenetic gene regulation and senescence resistance during GBM tumorigenesis.
Collapse
Affiliation(s)
- Linlin Li
- Department of Human and Molecular Genetics, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Aidong Zhou
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yanjun Wei
- Department of Bioinformatics & Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Feng Liu
- Ludwig Institute for Cancer Research, University of California, San Diego, La Jolla, CA 92093, USA
| | - Peng Li
- Department of Human and Molecular Genetics, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Runping Fang
- Department of Human and Molecular Genetics, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Li Ma
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Sicong Zhang
- Laboratory of Biochemistry and Molecular Biology, The Rockefeller University, New York City, NY 10065, USA
| | - Longqiang Wang
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jinze Liu
- Department of Biostatistics, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
- VCU Massey Cancer Center, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Hope T. Richard
- VCU Massey Cancer Center, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
- Department of Pathology, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Yiwen Chen
- Department of Bioinformatics & Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- Quantitative Sciences Program, MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, 77030, USA
| | - Hengbin Wang
- VCU Massey Cancer Center, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
- Department of Internal Medicine, Division of Hematology, Oncology and Palliative Care, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Suyun Huang
- Department of Human and Molecular Genetics, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
- VCU Massey Cancer Center, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
- Virginia Commonwealth University Institute of Molecular Medicine, Richmond, VA 23298, USA
| |
Collapse
|
4
|
Fang Y, Wang L, Fang R. Using medical Vaseline gauze to alleviate the pressure injury caused by a mask and hat. J Am Acad Dermatol 2022; 87:e93-e94. [PMID: 32835741 PMCID: PMC8600446 DOI: 10.1016/j.jaad.2020.08.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/03/2020] [Accepted: 08/17/2020] [Indexed: 02/02/2023]
Affiliation(s)
- Yilin Fang
- Academy of Engineering Science, HuaZhong University of Science and Technology, Wuhan, China
| | - Lu Wang
- Dermatology Department, Sichuan Women's and Children's Hospital, Chengdu, China
| | - Runping Fang
- Dermatology Department, Ganxian District People's Hospital, Ganzhou, China,Reprint requests: Runping Fang, MMed, Dermatology Department, Ganxian District People's Hospital, No. 10 Meilin St, Ganzhou City, Jiangxi Province, Ganxian 341100, China
| |
Collapse
|
5
|
Gong T, Lu T, Mi JX, Fang R, Shan C. [Research progress on the mechanisms of cryotherapy and its application in laryngopharyngeal diseases]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1023-1027. [PMID: 36058675 DOI: 10.3760/cma.j.cn115330-20211221-00811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- T Gong
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - T Lu
- Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - J X Mi
- Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - R Fang
- the Department of Otolaryngology-Head and Neck Surgery, Eye, Ear, Nose, and Throat Hospital of Fudan University, Shanghai 200031, China
| | - Chunlei Shan
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China Center of Rehabilitation Medicine, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China Engineering Research Center of Traditional Chinese Medicine Intelligent Rehabilitation, Ministry of Education, Shanghai 201203, China
| |
Collapse
|
6
|
Fang R, Ye L, Shi H. Understanding the roles of N 6-methyladenosine writers, readers and erasers in breast cancer. Neoplasia 2021; 23:551-560. [PMID: 34000587 PMCID: PMC8138681 DOI: 10.1016/j.neo.2021.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/08/2021] [Accepted: 04/10/2021] [Indexed: 12/25/2022] Open
Abstract
Breast cancer is believed to be driven by epigenetic regulation of genes implicated in cell proliferation, survival, and differentiation. Recently, aberrant N6-methyladenosine (m6A) decorations turned up as crucial epigenetic regulator for malignant breast cancer, which may serve as new targets for breast cancer treatment. Here we briefly outline the functions of m6A and its regulatory proteins, including m6A “writers,” “readers,” and “erasers” on RNA life fate, recapitulate the latest breakthroughs in understanding m6A modification and its regulatory proteins, and the underlying molecular mechanisms that contribute to the carcinogenesis and the progression of breast cancer, so as to provide potential epigenetic targets for diagnosis, treatment and prognosis in breast cancer.
Collapse
Affiliation(s)
- Runping Fang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, China
| | - Lihong Ye
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, China.
| | - Hui Shi
- Institute of Immunology and Molecular Medicine, Jining Medical University, Shandong, China.
| |
Collapse
|
7
|
Fang R, Chen X, Zhang S, Shi H, Ye Y, Shi H, Zou Z, Li P, Guo Q, Ma L, He C, Huang S. EGFR/SRC/ERK-stabilized YTHDF2 promotes cholesterol dysregulation and invasive growth of glioblastoma. Nat Commun 2021; 12:177. [PMID: 33420027 PMCID: PMC7794382 DOI: 10.1038/s41467-020-20379-7] [Citation(s) in RCA: 158] [Impact Index Per Article: 52.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 11/23/2020] [Indexed: 01/27/2023] Open
Abstract
Glioblastoma (GBM) is the most common type of adult malignant brain tumor, but its molecular mechanisms are not well understood. In addition, the knowledge of the disease-associated expression and function of YTHDF2 remains very limited. Here, we show that YTHDF2 overexpression clinically correlates with poor glioma patient prognosis. EGFR that is constitutively activated in the majority of GBM causes YTHDF2 overexpression through the EGFR/SRC/ERK pathway. EGFR/SRC/ERK signaling phosphorylates YTHDF2 serine39 and threonine381, thereby stabilizes YTHDF2 protein. YTHDF2 is required for GBM cell proliferation, invasion, and tumorigenesis. YTHDF2 facilitates m6A-dependent mRNA decay of LXRA and HIVEP2, which impacts the glioma patient survival. YTHDF2 promotes tumorigenesis of GBM cells, largely through the downregulation of LXRα and HIVEP2. Furthermore, YTHDF2 inhibits LXRα-dependent cholesterol homeostasis in GBM cells. Together, our findings extend the landscape of EGFR downstream circuit, uncover the function of YTHDF2 in GBM tumorigenesis, and highlight an essential role of RNA m6A methylation in cholesterol homeostasis.
Collapse
Affiliation(s)
- Runping Fang
- Department of Human and Molecular Genetics, Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, 23298, USA
| | - Xin Chen
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Sicong Zhang
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Hui Shi
- Department of Human and Molecular Genetics, Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, 23298, USA
| | - Youqiong Ye
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX, 77030, USA
| | - Hailing Shi
- Department of Chemistry, The University of Chicago, Chicago, IL, 60637, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, 60637, USA
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL, 60637, USA
| | - Zhongyu Zou
- Department of Chemistry, The University of Chicago, Chicago, IL, 60637, USA
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, 60637, USA
| | - Peng Li
- Department of Human and Molecular Genetics, Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, 23298, USA
| | - Qing Guo
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Li Ma
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Chuan He
- Department of Chemistry, The University of Chicago, Chicago, IL, 60637, USA.
- Howard Hughes Medical Institute, The University of Chicago, Chicago, IL, 60637, USA.
- Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL, 60637, USA.
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL, 60637, USA.
| | - Suyun Huang
- Department of Human and Molecular Genetics, Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, 23298, USA.
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
| |
Collapse
|
8
|
Shi H, Zhao L, Guo X, Fang R, Zhang H, Dong G, Fu J, Yan F, Zhang J, Ning Z, Ma Q, Li Z, Li C, Dai J, Si C, Xiong H. Correction: Shi, H., et al. Arctigenin Attenuates Breast Cancer Progression through Decreasing GM-CSF/TSLP/STAT3/β-Catenin Signaling. Int. J. Mol. Sci. 2020, 21, 6357. Int J Mol Sci 2020; 21:ijms21228850. [PMID: 33238658 PMCID: PMC7700356 DOI: 10.3390/ijms21228850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 11/15/2020] [Accepted: 11/18/2020] [Indexed: 11/16/2022] Open
Abstract
The authors wish to make the following correction to this paper [...].
Collapse
Affiliation(s)
- Hui Shi
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Luping Zhao
- Institute of Basic Medical College, Jining Medical University, Jining 272067, China; (L.Z.); (X.G.)
| | - Xinlin Guo
- Institute of Basic Medical College, Jining Medical University, Jining 272067, China; (L.Z.); (X.G.)
| | - Runping Fang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin 300071, China;
| | - Hui Zhang
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Guanjun Dong
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Jia Fu
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Fenglian Yan
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Junfeng Zhang
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Zhaochen Ning
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Qun Ma
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Zhihua Li
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Chunxia Li
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Jun Dai
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Chuanping Si
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
- Correspondence: (C.S.); (H.X.); Tel.: +86-0537-3616286 (C.S.); +86-0537-3616283 (H.X.)
| | - Huabao Xiong
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
- Correspondence: (C.S.); (H.X.); Tel.: +86-0537-3616286 (C.S.); +86-0537-3616283 (H.X.)
| |
Collapse
|
9
|
Shi H, Zhao L, Guo X, Fang R, Zhang H, Dong G, Fu J, Yan F, Zhang J, Ning Z, Ma Q, Li Z, Li C, Dai J, Si C, Xiong H. Arctigenin Attenuates Breast Cancer Progression through Decreasing GM-CSF/TSLP/STAT3/β-Catenin Signaling. Int J Mol Sci 2020; 21:ijms21176357. [PMID: 32887217 PMCID: PMC7503539 DOI: 10.3390/ijms21176357] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/28/2020] [Accepted: 08/30/2020] [Indexed: 02/07/2023] Open
Abstract
Invasive breast cancer is highly regulated by tumor-derived cytokines in tumor microenvironment. The development of drugs that specifically target cytokines are promising in breast cancer treatment. In this study, we reported that arctigenin, a bioactive compound from Arctium lappa L., could decrease tumor-promoting cytokines GM-CSF, MMP-3, MMP-9 and TSLP in breast cancer cells. Arctigenin not only inhibited the proliferation, but also the invasion and stemness of breast cancer cells via decreasing GM-CSF and TSLP. Mechanistically, arctigenin decreased the promoter activities of GM-CSF and TSLP via reducing the nuclear translocation of NF-κB p65 which is crucial for the transcription of GM-CSF and TSLP. Furthermore, arctigenin-induced depletion of GM-CSF and TSLP inhibited STAT3 phosphorylation and β-catenin signaling resulting in decreased proliferation, invasion and stemness of breast cancer cells in vitro and in vivo. Our findings provide new insights into the mechanism by which tumor-promoting cytokines regulate breast cancer progression and suggest that arctigenin is a promising candidate for cytokine-targeted breast cancer therapy.
Collapse
Affiliation(s)
- Hui Shi
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Luping Zhao
- Institute of Basic Medical College, Jining Medical University, Jining 272067, China; (L.Z.); (X.G.)
| | - Xinlin Guo
- Institute of Basic Medical College, Jining Medical University, Jining 272067, China; (L.Z.); (X.G.)
| | - Runping Fang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin 300071, China;
| | - Hui Zhang
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Guanjun Dong
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Jia Fu
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Fenglian Yan
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Junfeng Zhang
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Zhaochen Ning
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Qun Ma
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Zhihua Li
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Chunxia Li
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Jun Dai
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
| | - Chuanping Si
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
- Correspondence: (C.S.); (H.X.); Tel.: +86-(0537)-3616286 (C.S.); +86-(0537)-3616283 (H.X.)
| | - Huabao Xiong
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining 272067, China; (H.S.); (H.Z.); (G.D.); (J.F.); (F.Y.); (J.Z.); (Z.N.); (Q.M.); (Z.L.); (C.L.); (J.D.)
- Correspondence: (C.S.); (H.X.); Tel.: +86-(0537)-3616286 (C.S.); +86-(0537)-3616283 (H.X.)
| |
Collapse
|
10
|
Robledo EA, Schutzman R, Fang R, Fernandez C, Kwasinski R, Leiva K, Perez-Clavijo F, Godavarty A. Physiological wound assessment from coregistered and segmented tissue hemoglobin maps. J Opt Soc Am A Opt Image Sci Vis 2020; 37:1249-1256. [PMID: 32749259 DOI: 10.1364/josaa.394985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
A handheld near-infrared optical scanner (NIROS) was recently developed to map for effective changes in oxy- and deoxyhemoglobin concentration in diabetic foot ulcers (DFUs) across weeks of treatment. Herein, a coregistration and image segmentation approach was implemented to overlay hemoglobin maps onto the white light images of ulcers. Validation studies demonstrated over 97% accuracy in coregistration. Coregistration was further applied to a healing DFU across weeks of healing. The potential to predict changes in wound healing was observed when comparing the coregistered and segmented hemoglobin concentration area maps to the visual area of the wound.
Collapse
|
11
|
Xia NB, Lu Y, Zhao PF, Wang CF, Li YY, Tan L, Fang R, Zhou YQ, Shen B, Zhao JL. Genotyping and characterization of Toxoplasma gondii strain isolated from pigs in Hubei province, central China. Trop Biomed 2020; 37:489-498. [PMID: 33612818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Toxoplasma gondii, a ubiquitous pathogen that infects nearly all warm-blooded animals and humans, can cause severe complications to the infected people and animals as well as serious economic losses and social problems. Here, one local strain (TgPIG-WH1) was isolated from an aborted pig fetus, and the genotype of this strain was identified as ToxoDB #3 by the PCR RFLP typing method using 10 molecular markers (SAG1, SAG2, alternative SAG2, SAG3, BTUB, GRA6, L358, PK1, C22-8, C29-2 and Apico). A comparison of the virulence of this isolate with other strains in both mice and piglets showed that TgPIG-WH1 was less virulent than type 1 strain RH and type 2 strain ME49 in mice, and caused similar symptoms to those of ME49 such as fever in piglets. Additionally, in piglet infection with both strains, the TgPIG-WH1 caused a higher IgG response and more severe pathological damages than ME49. Furthermore, TgPIG-WH1 caused one death in the 5 infected piglets, whereas ME49 did not, suggesting the higher virulence of TgPIG-WH1 than ME49 during piglet infection. Experimental infections indicate that the virulence of TgPIG-WH1 relative to ME49 is weaker in mice, but higher in pigs. This is probably the first report regarding a ToxoDB #3 strain from pigs in Hubei, China. These data will facilitate the understanding of genetic diversity of Toxoplasma strains in China as well as the prevention and control of porcine toxoplasmosis in the local region.
Collapse
Affiliation(s)
- N B Xia
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - Y Lu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - P F Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - C F Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - Y Y Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - L Tan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - R Fang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - Y Q Zhou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - B Shen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
- Key Laboratory of Preventive Medicine in Hubei Province, Wuhan, Hubei Province, PR China
| | - J L Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
- Hubei Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei Province, PR China
- Key Laboratory of Preventive Medicine in Hubei Province, Wuhan, Hubei Province, PR China
| |
Collapse
|
12
|
Chiu WC, Powers DB, Hirshon JM, Shackelford SA, Hu PF, Chen SY, Chen HH, Mackenzie CF, Miller CH, DuBose JJ, Carroll C, Fang R, Scalea TM. Impact of trauma centre capacity and volume on the mortality risk of incoming new admissions. BMJ Mil Health 2020; 168:212-217. [PMID: 32474436 DOI: 10.1136/bmjmilitary-2020-001483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/03/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Trauma centre capacity and surge volume may affect decisions on where to transport a critically injured patient and whether to bypass the closest facility. Our hypothesis was that overcrowding and high patient acuity would contribute to increase the mortality risk for incoming admissions. METHODS For a 6-year period, we merged and cross-correlated our institutional trauma registry with a database on Trauma Resuscitation Unit (TRU) patient admissions, movement and discharges, with average capacity of 12 trauma bays. The outcomes of overall hospital and 24 hours mortality for new trauma admissions (NEW) were assessed by multivariate logistic regression. RESULTS There were 42 003 (mean=7000/year) admissions having complete data sets, with 36 354 (87%) patients who were primary trauma admissions, age ≥18 and survival ≥15 min. In the logistic regression model for the entire cohort, NEW admission hospital mortality was only associated with NEW admission age and prehospital Glasgow Coma Scale (GCS) and Shock Index (SI) (all p<0.05). When TRU occupancy reached ≥16 patients, the factors associated with increased NEW admission hospital mortality were existing patients (TRU >1 hour) with SI ≥0.9, recent admissions (TRU ≤1 hour) with age ≥65, NEW admission age and prehospital GCS and SI (all p<0.05). CONCLUSION The mortality of incoming patients is not impacted by routine trauma centre overcapacity. In conditions of severe overcrowding, the number of admitted patients with shock physiology and a recent surge of elderly/debilitated patients may influence the mortality risk of a new trauma admission.
Collapse
Affiliation(s)
- William C Chiu
- R Adams Cowley Shock Trauma Center, Baltimore, Maryland, USA
| | - D B Powers
- Director, Craniomaxillofacial Trauma Program, Duke University Hospital, Durham, North Carolina, USA
| | - J M Hirshon
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | | | - P F Hu
- University of Maryland Medical Center, Baltimore, Maryland, USA
| | - S Y Chen
- National Yunlin University of Science and Technology, Douliou, Taiwan
| | - H H Chen
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - C F Mackenzie
- Shock Trauma and Anesthesiology Research - Organized Research Center (STAR-ORC), University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - C H Miller
- US Air Force Materiel Command, Wright-Patterson AFB, Ohio, USA
| | - J J DuBose
- R Adams Cowley Shock Trauma Center, Baltimore, Maryland, USA.,Center for Sustainment of Trauma and Readiness Skills - Baltimore, US Air Force Medical Service, Baltimore, Maryland, USA
| | | | - R Fang
- Surgery, Johns Hopkins Bayview Medical Center, Baltimore, Maryland, USA
| | - T M Scalea
- R Adams Cowley Shock Trauma Center, Baltimore, Maryland, USA
| |
Collapse
|
13
|
Zhang H, Tang K, Fang R, Sun Q. What dermatologists could do to cope with the novel coronavirus (SARS-CoV-2): a dermatologist's perspective from China. J Eur Acad Dermatol Venereol 2020; 34:e211-e212. [PMID: 32220020 DOI: 10.1111/jdv.16389] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- H Zhang
- Department of Dermatology, Peking Union Medical College Hospital, Beijing, China
| | - K Tang
- Department of Dermatology, Peking Union Medical College Hospital, Beijing, China
| | - R Fang
- Department of Dermatology, Peking Union Medical College Hospital, Beijing, China
| | - Q Sun
- Department of Dermatology, Peking Union Medical College Hospital, Beijing, China
| |
Collapse
|
14
|
Wang Y, Zhang H, Fang R, Tang K, Sun Q. The top 100 most cited articles in rosacea: a bibliometric analysis. J Eur Acad Dermatol Venereol 2020; 34:2177-2182. [PMID: 32078196 DOI: 10.1111/jdv.16305] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 02/06/2020] [Indexed: 12/29/2022]
Affiliation(s)
- Y. Wang
- Department of Dermatology Peking Union Medical College Hospital Beijing China
- Eight‐year MD Program Peking Union Medical College Beijing China
| | - H. Zhang
- Department of Dermatology Peking Union Medical College Hospital Beijing China
- Eight‐year MD Program Peking Union Medical College Beijing China
| | - R. Fang
- Department of Dermatology Peking Union Medical College Hospital Beijing China
| | - K. Tang
- Department of Dermatology Peking Union Medical College Hospital Beijing China
- Eight‐year MD Program Peking Union Medical College Beijing China
| | - Q. Sun
- Department of Dermatology Peking Union Medical College Hospital Beijing China
| |
Collapse
|
15
|
Fang R, Xu F, Shi H, Wu Y, Cao C, Li H, Ye K, Zhang Y, Liu Q, Zhang S, Zhang W, Ye L. LAMTOR5 raises abnormal initiation of O-glycosylation in breast cancer metastasis via modulating GALNT1 activity. Oncogene 2020; 39:2290-2304. [PMID: 31836847 DOI: 10.1038/s41388-019-1146-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 11/28/2019] [Accepted: 12/02/2019] [Indexed: 12/31/2022]
Abstract
During malignancy, perturbed O-glycosylation confers global influence on cancer progression. As a hallmark of cancer metastasis, GalNAc-type O-glycosylation initiation is aberrantly raised, but the regulatory mechanism is still mysterious. Here, we show that LAMTOR5 raises abnormal initiation of O-glycosylation in breast cancer metastasis. LAMTOR5 was highly expressed in adenocarcinoma and correlated with Tn antigen, a product of O-glycosylation initiation, in both clinical metastatic breast cancer specimens and secondary metastasis mouse model. LAMTOR5-modulated O-glycosylation initiating enzyme GALNT1 conferred Tn accumulation and predicted poor survival. Mechanistically, LAMTOR5 stimulated transcriptions of GALNT1 through coactivating c-Jun, and triggered dislocation of GALNT1 in the endoplasmic reticulum (ER) via LAMTOR5 dependent-activation of c-Src. This unusual initiation of O-glycosylation resulted in the abundance of Tn modified glycoproteins, such as MUC1 and OPN. Collectively, our findings indicate that LAMTOR5/c-Jun/c-Src axis serves as the upstream regulator of abnormal O-glycosylation initiation and potential therapeutic targets in breast cancer metastasis.
Collapse
Affiliation(s)
- Runping Fang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Feifei Xu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Hui Shi
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Yue Wu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Can Cao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Hang Li
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Kai Ye
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Yingyi Zhang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Qian Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Shuqin Zhang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Weiying Zhang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Lihong Ye
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, China.
| |
Collapse
|
16
|
Chen Y, Fang R, Yue C, Chang G, Li P, Guo Q, Wang J, Zhou A, Zhang S, Fuller GN, Shi X, Huang S. Wnt-Induced Stabilization of KDM4C Is Required for Wnt/β-Catenin Target Gene Expression and Glioblastoma Tumorigenesis. Cancer Res 2019; 80:1049-1063. [PMID: 31888886 DOI: 10.1158/0008-5472.can-19-1229] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 11/14/2019] [Accepted: 12/23/2019] [Indexed: 12/14/2022]
Abstract
Wnt/β-catenin signaling activates the transcription of target genes to regulate stem cells and cancer development. However, the contribution of epigenetic regulation to this process is unknown. Here, we report that Wnt activation stabilizes the epigenetic regulator KDM4C that promotes tumorigenesis and survival of human glioblastoma cells by epigenetically activating the transcription of Wnt target genes. KDM4C protein expression was upregulated in human glioblastomas, and its expression directly correlated with Wnt activity and Wnt target gene expression. KDM4C was essential for Wnt-induced gene expression and tumorigenesis of glioblastoma cells. In the absence of Wnt3a, protein kinase R phosphorylated KDM4C at Ser918, inducing KDM4C ubiquitination and degradation. Wnt3a stabilized KDM4C through inhibition of GSK3-dependent protein kinase R activity. Stabilized KDM4C accumulated in the nucleus and bound to and demethylated TCF4-associated histone H3K9 by interacting with β-catenin, promoting HP1γ removal and transcriptional activation. These findings reveal that Wnt-KDM4C-β-catenin signaling represents a novel mechanism for the transcription of Wnt target genes and regulation of tumorigenesis, with important clinical implications. SIGNIFICANCE: These findings identify the Wnt-KDM4C-β-catenin signaling axis as a critical mechanism for glioma tumorigenesis that may serve as a new therapeutic target in glioblastoma.
Collapse
Affiliation(s)
- Yaohui Chen
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Runping Fang
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
- Department of Human and Molecular Genetics, Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, Virginia
| | - Chen Yue
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Guoqiang Chang
- Department of Human and Molecular Genetics, Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, Virginia
| | - Peng Li
- Department of Human and Molecular Genetics, Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, Virginia
| | - Qing Guo
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Aidong Zhou
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Sicong Zhang
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Gregory N Fuller
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
- The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, Texas
| | - Xiaobing Shi
- The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, Texas
- Department of Molecular Carcinogenesis, Center for Cancer Epigenetics, The University of Texas MD Anderson Cancer Center, Houston, Texas
- Center for Epigenetics, Van Andel Research Institute, Grand Rapids, Michigan
| | - Suyun Huang
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas.
- Department of Human and Molecular Genetics, Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, Virginia
- The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, Texas
| |
Collapse
|
17
|
Fang R, Zhao NN, Zeng KX, Wen Q, Xiao P, Luo X, Liu XW, Wang YL. MicroRNA-544 inhibits inflammatory response and cell apoptosis after cerebral ischemia reperfusion by targeting IRAK4. Eur Rev Med Pharmacol Sci 2019; 22:5605-5613. [PMID: 30229835 DOI: 10.26355/eurrev_201809_15825] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Stroke remains the most common malignant cerebrovascular event in the world. The correlation between the expression of miR-544 and the degree of cerebral ischemia reperfusion (CIR) injury has not been well recognized in recent years. This study focuses on the effect of miR-544 on inflammation and apoptosis after CIR. PATIENTS AND METHODS Plasma expression of miR-544 in ischemic stroke (IS) patients and healthy controls was determined by quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR). The effects of miR-544 on cerebral infarction and neurological deficits were verified in vitro by tail vein injection of Ago-miR-544. Western blotting was utilized to examine protein expressions of key proteins involving in inflammation and apoptosis in mouse brain. Western blotting, immunofluorescence staining and luciferase assays were used to demonstrate whether miR-544 influences the expression of interleukin-1 receptor-associated kinase 4 (IRAK4), downstream inflammatory and apoptosis-related proteins. RESULTS MiR-544 was found decreased in peripheral blood of IS patients compared with healthy controls. MiR-544 has been shown to relieve neurological deficits and reduce the volume of cerebral infarction in mice. Overexpression of miR-544 ameliorated the inflammation and apoptotic responses in brain tissue after ischemia reperfusion by down-regulating the expression of IRAK4, whereas the low expression was opposite in vivo and in vitro. CONCLUSIONS We found that miR-544 may participate in controlling inflammation and apoptosis after ischemia-reperfusion by targeting IRAK4, providing possible diagnostic indicators and therapeutic targets for IS.
Collapse
Affiliation(s)
- R Fang
- Department of Rehabilitation, The First Affiliated Hospital, Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China.
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Xiao P, Liu XW, Zhao NN, Fang R, Wen Q, Zeng KX, Wang YL. Correlations of neuronal apoptosis with expressions of c-Fos and c-Jun in rats with post-ischemic reconditioning damage. Eur Rev Med Pharmacol Sci 2019; 22:2832-2838. [PMID: 29771436 DOI: 10.26355/eurrev_201805_14984] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Transcription factors (c-Fos and c-Jun) have been considered to play roles in the initiation of programmed nerve cell death. However, the roles of c-Fos and c-Jun protein expressions in neuronal apoptosis of rats with post-ischemic reconditioning damage were not clarified. Therefore, the aim of this study was to investigate the correlations of protein expressions of c-Fos and c-Jun with neuronal apoptosis of rats with post-ischemic reconditioning damage. MATERIALS AND METHODS Rat models of post-ischemic reconditioning were established firstly. Then, apoptosis was assessed by terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate-biotin nick end labeling (TUNEL) assay, and the gene expression levels of apoptosis-related proteins [cytochrome c (Cyt c), B-cell lymphoma 2 (Bcl-2) and Bcl-2-associated X protein (Bax)] were detected by reverse transcription-polymerase chain reaction (RT-PCR). Lastly, Western blotting was used to determine the protein expression levels of c-Fos and c-Jun, and the expressions of c-Fos and c-Jun in brain tissues of models were measured by immunohistochemistry. RESULTS Treatment group had significantly increased malonaldehyde (MDA) level and significantly decreased superoxide dismutase (SOD) activity in rat cortex compared with those in control group (p<0.05). The number of TUNEL positive cells in the right cortex of rats in the treatment group was clearly higher than that in control group. Among them, post-ischemic reperfusion group had reduced level of Bax in the cytoplasm, but increased Bax level in the mitochondrion, and lowered expression level of Bcl-2 in both mitochondrion and cytoplasm in comparison with control group. Dynamic detection results of c-Jun were in synchronization with those of apoptosis proteins, and maximum expression occurred at 24 h after treatment. CONCLUSIONS c-Jun may play a role in the initiation of apoptotic cell death in these neurons.
Collapse
Affiliation(s)
- P Xiao
- Department of Rehabilitation, Shenzhen Dapeng New District Nan'ao People's Hospital, Shenzhen, China.
| | | | | | | | | | | | | |
Collapse
|
19
|
Li H, Sun J, Du J, Wang F, Fang R, Yu C, Xiong J, Chen W, Lu Z, Liu J. Clostridium butyricum exerts a neuroprotective effect in a mouse model of traumatic brain injury via the gut-brain axis. Neurogastroenterol Motil 2018; 30:e13260. [PMID: 29193450 DOI: 10.1111/nmo.13260] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 11/06/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND Traumatic brain injury (TBI) is a common occurrence following gastrointestinal dysfunction. Recently, more and more attentions are being focused on gut microbiota in brain and behavior. Glucagon-like peptide-1 (GLP-1) is considered as a mediator that links the gut-brain axis. The aim of this study was to explore the neuroprotective effects of Clostridium butyricum (Cb) on brain damage in a mouse model of TBI. METHODS Male C57BL/6 mice were subjected to a model of TBI-induced by weight-drop impact head injury and were treated intragastrically with Cb. The cognitive deficits, brain water content, neuronal death, and blood-brain barrier (BBB) permeability were evaluated. The expression of tight junction (TJ) proteins, Bcl-2, Bax, GLP-1 receptor (GLP-1R), and phosphorylation of Akt (p-Akt) in the brain were also measured. Moreover, the intestinal barrier permeability, the expression of TJ protein and GLP-1, and IL-6 level in the intestine were detected. RESULTS Cb treatment significantly improved neurological dysfunction, brain edema, neurodegeneration, and BBB impairment. Meanwhile, Cb treatment also significantly increased the expression of TJ proteins (occludin and zonula occluden-1), p-Akt and Bcl-2, but decreased expression of Bax. Moreover, Cb treatment exhibited more prominent effects on decreasing the levels of plasma d-lactate and colonic IL-6, upregulating expression of Occludin, and protecting intestinal barrier integrity. Furthermore, Cb-treated mice showed increased the secretion of intestinal GLP-1 and upregulated expression of cerebral GLP-1R. CONCLUSIONS Our findings demonstrated the neuroprotective effect of Cb in TBI mice and the involved mechanisms were partially attributed to the elevating GLP-1 secretion through the gut-brain axis.
Collapse
Affiliation(s)
- H Li
- Department of Emergency Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - J Sun
- Department of Neurology, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - J Du
- Department of Clinical Microbiology and Immunology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - F Wang
- Departments of Pathophysiology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - R Fang
- Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - C Yu
- Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - J Xiong
- Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - W Chen
- Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Z Lu
- Department of Emergency Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - J Liu
- Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China
| |
Collapse
|
20
|
Liu B, Wang T, Wang H, Zhang L, Xu F, Fang R, Li L, Cai X, Wu Y, Zhang W, Ye L. Oncoprotein HBXIP enhances HOXB13 acetylation and co-activates HOXB13 to confer tamoxifen resistance in breast cancer. J Hematol Oncol 2018; 11:26. [PMID: 29471853 PMCID: PMC5824486 DOI: 10.1186/s13045-018-0577-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Accepted: 02/15/2018] [Indexed: 02/07/2023] Open
Abstract
Background Resistance to tamoxifen (TAM) frequently occurs in the treatment of estrogen receptor positive (ER+) breast cancer. Accumulating evidences indicate that transcription factor HOXB13 is of great significance in TAM resistance. However, the regulation of HOXB13 in TAM-resistant breast cancer remains largely unexplored. Here, we were interested in the potential effect of HBXIP, an oncoprotein involved in the acceleration of cancer progression, on the modulation of HOXB13 in TAM resistance of breast cancer. Methods The Kaplan-Meier plotter cancer database and GEO dataset were used to analyze the association between HBXIP expression and relapse-free survival. The correlation of HBXIP and HOXB13 in ER+ breast cancer was assessed by human tissue microarray. Immunoblotting analysis, qRT-PCR assay, immunofluorescence staining, Co-IP assay, ChIP assay, luciferase reporter gene assay, cell viability assay, and colony formation assay were performed to explore the possible molecular mechanism by which HBXIP modulates HOXB13. Cell viability assay, xenograft assay, and immunohistochemistry staining analysis were utilized to evaluate the effect of the HBXIP/HOXB13 axis on the facilitation of TAM resistance in vitro and in vivo. Results The analysis of the Kaplan-Meier plotter and the GEO dataset showed that mono-TAM-treated breast cancer patients with higher HBXIP expression levels had shorter relapse-free survivals than patients with lower HBXIP expression levels. Overexpression of HBXIP induced TAM resistance in ER+ breast cancer cells. The tissue microarray analysis revealed a positive association between the expression levels of HBXIP and HOXB13 in ER+ breast cancer patients. HBXIP elevated HOXB13 protein level in breast cancer cells. Mechanistically, HBXIP prevented chaperone-mediated autophagy (CMA)-dependent degradation of HOXB13 via enhancement of HOXB13 acetylation at the lysine 277 residue, causing the accumulation of HOXB13. Moreover, HBXIP was able to act as a co-activator of HOXB13 to stimulate interleukin (IL)-6 transcription in the promotion of TAM resistance. Interestingly, aspirin (ASA) suppressed the HBXIP/HOXB13 axis by decreasing HBXIP expression, overcoming TAM resistance in vitro and in vivo. Conclusions Our study highlights that HBXIP enhances HOXB13 acetylation to prevent HOXB13 degradation and co-activates HOXB13 in the promotion of TAM resistance of breast cancer. Therapeutically, ASA can serve as a potential candidate for reversing TAM resistance by inhibiting HBXIP expression. Electronic supplementary material The online version of this article (10.1186/s13045-018-0577-5) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Bowen Liu
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, People's Republic of China
| | - Tianjiao Wang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, People's Republic of China
| | - Huawei Wang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, People's Republic of China
| | - Lu Zhang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, People's Republic of China
| | - Feifei Xu
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, People's Republic of China
| | - Runping Fang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, People's Republic of China
| | - Leilei Li
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, People's Republic of China
| | - Xiaoli Cai
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, People's Republic of China
| | - Yue Wu
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, People's Republic of China
| | - Weiying Zhang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, People's Republic of China.
| | - Lihong Ye
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, 300071, People's Republic of China.
| |
Collapse
|
21
|
Amico AL, Fang R, Raoul A, Wroblewski K, Nielsen S, Weipert C, Abe H, Sheth D, Romero I, Kulkarni K, Schacht D, Patrick-Miller L, Verp M, Bradbury AR, Hlubocky F, Olopade OI. Abstract P5-19-04: Psychosocial impact of a multi-modality surveillance program for women at high-risk for breast cancer. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p5-19-04] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose: To evaluate the psychosocial impact of semi-annual dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) screening in women at high-risk for breast cancer.
Background: For women with BRCA1 and BRCA2 mutations and/or a personal or family history of breast cancer, annual breast MRI has shown improved sensitivity and cancer detection compared to mammography. However, MRI's heightened sensitivity may lead to increased: false positives requiring additional follow-up biopsy/imaging; iatrogenic risk; and psychosocial distress, which all may negatively impact women's overall health-related quality of life.
Methods: Between 2004 and 2016, we assembled a prospective cohort of high-risk women undergoing semi-annual DCE-MRI and annual mammography. We reviewed a subset of this group. Participants completed psychosocial assessments at baseline and 6-month visits using the following measures: coping (MBSS); state/trait anxiety (STAI-S/T); depression (BDI-II); risk perception; and mental health (SF-36). Participants were classified according to Monitor or Blunter coping style. Mixed-effects logistic regressions models examined effects of demographics on psychosocial changes over time.
Results: 295 women were recruited to the study; 44% of the study participants had pathogenic mutations in BRCA1 or BRCA2 genes. 232 of 295 enrolled participants (78.6%) completed psychosocial assessments. For the total population: median age 44y (range: 21-73), 71% ≥college/post-graduate education; 84% Caucasian; 8% African American; 2% Latino; 99% with health insurance; 72% annual income of >$60,000. One third of women had a personal cancer history. Participants were evenly split between baseline Monitoring and Blunting coping style (49% and 51%, respectively). No significant differences were found between demographics (age, race, income, mutation, cancer type, cancer history) or psychosocial factors (baseline trait anxiety (p =0.64), depression (p =0.65), SF36 global health (p=0.66). After adjusting for education, race, cancer history and coping, women with ≥$60,000 income had lower trait anxiety (p<0.000) and greater mental health (p<0.001) than those with <$60,000 income. Over time, change in trait anxiety varied by coping (p=0.0006): Blunters did not experience significant changes in trait anxiety (p=0.072) while Monitors had significant diminished trait anxiety over time (p<0.001). For depression, women with ≥$60,000 income and college educated had lower BDI-II depression (p<0.000). Yet, women with a cancer history had significantly greater BDH-II depression (p= 0.048). Mental health over time varied by race as non-whites had greater gains in mental health (p=0.001) over time than whites (p=0.03).
Conclusion: Semi-annual DCE-MRI did not cause a significantly elevated state anxiety or depression, nor was there a significant decline in mental health over time for groups regardless of cancer history and genetic mutation status. Coping style may have an impact on psychosocial outcomes for those undergoing heightened surveillance over time.
Citation Format: Amico AL, Fang R, Raoul A, Wroblewski K, Nielsen S, Weipert C, Abe H, Sheth D, Romero I, Kulkarni K, Schacht D, Patrick-Miller L, Verp M, Bradbury AR, Hlubocky F, Olopade OI. Psychosocial impact of a multi-modality surveillance program for women at high-risk for breast cancer [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P5-19-04.
Collapse
Affiliation(s)
- AL Amico
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - R Fang
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - A Raoul
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - K Wroblewski
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - S Nielsen
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - C Weipert
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - H Abe
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - D Sheth
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - I Romero
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - K Kulkarni
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - D Schacht
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - L Patrick-Miller
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - M Verp
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - AR Bradbury
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - F Hlubocky
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| | - OI Olopade
- The University of Chicago, Chicago, IL; University of Pennsylvania, Philadelphia, PA; Independent Contractor
| |
Collapse
|
22
|
Li H, Wang Z, Li Y, Fang R, Wang H, Shi H, Zhang X, Zhang W, Ye L. Hepatitis B X-interacting protein promotes the formation of the insulin gene-transcribing protein complex Pdx-1/Neurod1 in animal pancreatic β-cells. J Biol Chem 2017; 293:2053-2065. [PMID: 29259128 DOI: 10.1074/jbc.m117.809582] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 07/31/2017] [Revised: 12/04/2017] [Indexed: 12/26/2022] Open
Abstract
The activation of insulin gene transcription depends on multiple nuclear proteins, including the transcription factors PDX-1 and NEUROD1, which form a transcriptional complex. We recently reported that hepatitis B X-interacting protein (HBXIP, also termed LAMTOR5) can modulate glucose metabolism reprogramming in cancer cells. However, the physiological role of HBXIP in the modulation of glucose metabolism in normal tissues is poorly understood. Here, we report that Hbxip is an essential regulator of the effect of the Pdx-1/Neurod1 complex on insulin gene transcription in murine pancreatic β-cells in vitro and in vivo We found that pancreatic β-cell-specific Hbxip-knockout mice displayed higher fasting blood glucose levels and impaired glucose tolerance. Furthermore, Hbxip was involved in the regulation of insulin in the pancreas islets and increased insulin gene expression in rat pancreatic β-cells. Mechanistically, Hbxip stimulated insulin enhancer activity by interacting with Pdx-1 and recruiting Neurod1 to Pdx-1. Functionally, we provide evidence that Hbxip is required for Pdx-1/Neurod1-mediated insulin expression in rat pancreatic β-cells. Collectively, these results indicate that Hbxip is involved in the transcription of insulin by increasing the levels of the Pdx-1/Neurod1 complex in animal pancreatic β-cells. Our finding provides the insight into the mechanism by which Hbxip stimulates the transcription of the insulin gene.
Collapse
Affiliation(s)
- Hang Li
- From the State Key Laboratory of Medicinal Chemical Biology, Departments of Biochemistry and
| | - Zhen Wang
- From the State Key Laboratory of Medicinal Chemical Biology, Departments of Biochemistry and
| | - Yinghui Li
- From the State Key Laboratory of Medicinal Chemical Biology, Departments of Biochemistry and
| | - Runping Fang
- From the State Key Laboratory of Medicinal Chemical Biology, Departments of Biochemistry and
| | - Huawei Wang
- From the State Key Laboratory of Medicinal Chemical Biology, Departments of Biochemistry and
| | - Hui Shi
- From the State Key Laboratory of Medicinal Chemical Biology, Departments of Biochemistry and
| | - Xiaodong Zhang
- Cancer Research, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Weiying Zhang
- From the State Key Laboratory of Medicinal Chemical Biology, Departments of Biochemistry and
| | - Lihong Ye
- From the State Key Laboratory of Medicinal Chemical Biology, Departments of Biochemistry and
| |
Collapse
|
23
|
Liyi C, Lu S, Fang R, Zhao X. Noninvasive chromosome screening improves the clinical outcomes in frozen-thawed single blastocyst transfer cycles. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.824] [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: 10/18/2022]
|
24
|
Affiliation(s)
- S Yang
- Department of Cardiology, The Central Hospital of Linyi, Yishui, China
| | - C Fu
- Department of Cardiology, The Central Hospital of Linyi, Yishui, China
| | - R Xu
- Department of Cardiology, The Central Hospital of Linyi, Yishui, China
- Department of Cardiology, People’s Hospital of Weifang, Weifang, China
| | - Z Xun
- Department of Cardiology, People’s Hospital of Weifang, Weifang, China
| | - X Zhao
- Department of Clinical Laboratory, People’s Hospital of Weifang, Weifang, China
| | - R Fang
- Department of Cardiology, The Central Hospital of Linyi, Yishui, China
| |
Collapse
|
25
|
Fang R, Wang XT, Xia QY, Zhou XJ, Rao Q. [Immunohistochemistry provides genetic information on tumors]. Zhonghua Bing Li Xue Za Zhi 2017; 46:356-361. [PMID: 28468051 DOI: 10.3760/cma.j.issn.0529-5807.2017.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
|
26
|
Go J, Sy J, Santos A, Soll B, Davis J, Fang R. P194 Chronic obstructive pulmonary disease hospitalizations and emergency department visits among queen Emma clinic patients: a quality improvement initiative. Chest 2017. [DOI: 10.1016/j.chest.2017.04.098] [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: 11/17/2022] Open
|
27
|
Yang X, Qi MW, Zhang ZZ, Gao C, Wang CQ, Lei WQ, Tan L, Zhao JL, Fang R, Hu M. Development and Evaluation of a Loop-Mediated Isothermal Amplification (Lamp) Assay for the Detection of Haemonchus contortus in Goat Fecal Samples. J Parasitol 2017; 103:161-167. [PMID: 28098507 DOI: 10.1645/16-157] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Haemonchus contortus is one of the most significant strongylid nematodes infecting small ruminants, and it causes great economic losses to the livestock industry worldwide. Accurate diagnosis of H. contortus is crucial to control strategies. Traditional microscopic examinations are the most common methods for the diagnosis of H. contortus , but they are time-consuming and inaccurate. Molecular methods based on PCR are more accurate, but need expensive machines usually only used in the laboratory. Loop-mediated isothermal amplification (LAMP) is a rapid, simple, specific, and sensitive method that has been widely used to detect viruses, bacteria, and parasites. In the present study, a LAMP method targeting ribosomal ITS-2 gene for detection of the H. contortus in goat fecal samples has been established. The established LAMP method was H. contortus specific, and the sensitivity of LAMP was the same as that of the H. contortus species-specific PCR, with the lowest DNA level detected as being 1 pg. Examination of the clinical samples indicated that the positive rate of LAMP was higher than that of PCR, but no statistical difference was observed between LAMP and PCR (χ2 = 17.991, P = 0.053). In conclusion, a LAMP assay with a high specificity and a good sensitivity has been developed to detect H. contortus infection in goats. The established LAMP assay is useful for clinical diagnosis of H. contortus .
Collapse
Affiliation(s)
- X Yang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - M W Qi
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - Z Z Zhang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - C Gao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - C Q Wang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - W Q Lei
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - L Tan
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - J L Zhao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - R Fang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - M Hu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| |
Collapse
|
28
|
Xing T, Tan X, Yu Q, Yang T, Fang R. Identifying the location of epidermal growth factor-responsive element involved in the regulation of type IIb sodium-phosphate cotransporter expression in porcine intestinal epithelial cells. J Anim Physiol Anim Nutr (Berl) 2016; 101:1249-1258. [PMID: 27896869 DOI: 10.1111/jpn.12645] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 08/08/2016] [Accepted: 10/16/2016] [Indexed: 12/14/2022]
Abstract
Phosphate is an important mineral nutrient for both human and animals in growth and physiological functions; thus, much effort in the past has been made to clarify the mechanisms governing its absorption. Previous studies have found that epidermal growth factor (EGF) inhibits phosphate absorption in human intestinal cells via modulating the interaction of transcriptional factor c-myb with sodium-phosphate cotransporter (NaPi-IIb) gene promoter. This finding provoked our interest in determining the effect of EGF on NaPi-IIb gene expression in intestinal cells of pigs and the location of EGF-responsive element in the gene promoter. Using quantitative PCR, it was observed that EGF significantly reduced NaPi-IIb gene expression in porcine intestinal epithelial IPEC-J2 cells. Transfection with a series of constructs that contain different lengths of the 5'-flanking promoter region of the NaPi-IIb gene manifested that EGF-responsive element is located in the -1200 to -800 region. Further, c-myb was extracted from the cell nucleus of IPEC cells that were exposed to EGF or not via immunoprecipitation. The electrophoretic mobility shift assay showed a specific binding of transcription factor c-myb to labelled probes encompassing DNA sequence from -1092 to -1085 (-TCCAGTTG-). This protein-DNA complex was decreased with cells exposed to EGF and abrogated when c-myb was pre-incubated with excessive unlabelled competitive probes. Results from mutagenesis studies demonstrated that the c-myb-binding site is the EGF-responsive element involved in the regulation of NaPi-IIb expression. Identifying the location of EGF-responsive element contributes to understanding mechanisms underlying EGF down-regulated NaPi-IIb gene expression and provides a foundation for further investigating EGF-regulatory functions in phosphate absorption in pig intestine.
Collapse
Affiliation(s)
- T Xing
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - X Tan
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Q Yu
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - T Yang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - R Fang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| |
Collapse
|
29
|
Wang Y, Fang R, Cui M, Zhang W, Bai X, Wang H, Liu B, Zhang X, Ye L. The oncoprotein HBXIP up-regulates YAP through activation of transcription factor c-Myb to promote growth of liver cancer. Cancer Lett 2016; 385:234-242. [PMID: 27765671 DOI: 10.1016/j.canlet.2016.10.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [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: 07/26/2016] [Revised: 09/22/2016] [Accepted: 10/10/2016] [Indexed: 12/12/2022]
Abstract
The oncoprotein Yes-associated protein (YAP) in Hippo pathway plays crucial roles in the development of cancer. However, the mechanism of YAP regulation in cancer remains poorly understood. Here, we supposed that the oncoprotein hepatitis B X-interacting protein (HBXIP) might be involved in the modulation of YAP in liver cancer. Interestingly, our data showed that the expression levels of HBXIP were positively associated with those of YAP in clinical hepatocellular carcinoma (HCC) samples by immunohistochemistry (IHC) staining and real-time PCR assays. HBXIP was able to up-regulate YAP in hepatoma cells at the levels of promoter, mRNA and protein. Mechanistically, we identified that HBXIP up-regulated YAP through co-activating the transcription factor c-Myb in hepatoma cells. Functionally, silencing YAP abolished the proliferation of hepatoma cells mediated by HBXIP in vitro. Moreover, knockdown of YAP strongly blocked the HBXIP-enhanced tumor growth in mice. Thus, we conclude that HBXIP up-regulates YAP expression via activating transcription factor c-Myb to facilitate the growth of hepatoma cells. Our finding provides new insights into the mechanism of YAP regulation. Therapeutically, the oncoprotein HBXIP and YAP might serve as targets in liver cancer.
Collapse
Affiliation(s)
- Yue Wang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - Runping Fang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - Ming Cui
- State Key Laboratory of Medicinal Chemical Biology, Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - Weiying Zhang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - Xiao Bai
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - Huawei Wang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - Bowen Liu
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - Xiaodong Zhang
- State Key Laboratory of Medicinal Chemical Biology, Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, People's Republic of China.
| | - Lihong Ye
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, People's Republic of China.
| |
Collapse
|
30
|
Zhang F, Li Q, Chen X, Huo Y, Guo H, Song Z, Cui F, Zhang L, Fang R. Roles of the Laodelphax striatellus Down syndrome cell adhesion molecule in Rice stripe virus infection of its insect vector. Insect Mol Biol 2016; 25:413-421. [PMID: 26991800 DOI: 10.1111/imb.12226] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The arthropod Down syndrome cell adhesion molecule (Dscam) mediates pathogen-specific recognition via an extensive protein isoform repertoire produced by alternative splicing. To date, most studies have focused on the subsequent pathogen-specific immune response, and few have investigated the entry into cells of viruses or endosymbionts. In the present study, we cloned and characterized the cDNA of Laodelphax striatellus Dscam (LsDscam) and investigated the function of LsDscam in rice stripe virus (RSV) infection and the influence on the endosymbiont Wolbachia. LsDscam displayed a typical Dscam domain architecture, including 10 immunoglobulin (Ig) domains, six fibronectin type III domains, one transmembrane domain and a cytoplasmic tail. Alternative splicing occurred at the N-termini of the Ig2 and Ig3 domains, the complete Ig7 domain, the transmembrane domain and the C-terminus, comprising 10, 51, 35, two and two variable exons, respectively. Potentially LsDscam could encode at least 71 400 unique isoforms and 17 850 types of extracellular regions. LsDscam was expressed in various L. striatellus tissues. Knockdown of LsDscam mRNA via RNA interference decreased the titres of both RSV and Wolbachia, but did not change the numbers of the extracellular symbiotic bacterium Acinetobacter rhizosphaerae. Specific Dscam isoforms may play roles in enhancing the infection of vector-borne viruses or endosymbionts.
Collapse
Affiliation(s)
- F Zhang
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- National Plant Gene Research Center, Beijing, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - Q Li
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- National Plant Gene Research Center, Beijing, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - X Chen
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- National Plant Gene Research Center, Beijing, China
| | - Y Huo
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- National Plant Gene Research Center, Beijing, China
| | - H Guo
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- National Plant Gene Research Center, Beijing, China
| | - Z Song
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- National Plant Gene Research Center, Beijing, China
| | - F Cui
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - L Zhang
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- National Plant Gene Research Center, Beijing, China
| | - R Fang
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- National Plant Gene Research Center, Beijing, China
| |
Collapse
|
31
|
Zhao Y, Li H, Zhang Y, Li L, Fang R, Li Y, Liu Q, Zhang W, Qiu L, Liu F, Zhang X, Ye L. Oncoprotein HBXIP Modulates Abnormal Lipid Metabolism and Growth of Breast Cancer Cells by Activating the LXRs/SREBP-1c/FAS Signaling Cascade. Cancer Res 2016; 76:4696-707. [PMID: 26980761 DOI: 10.1158/0008-5472.can-15-1734] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 01/27/2016] [Indexed: 11/16/2022]
Abstract
Abnormal lipid metabolism is a hallmark of tumorigenesis. Accumulating evidence demonstrates that fatty acid synthase (FAS, FASN) is a metabolic oncogene that supports the growth and survival of tumor cells and is highly expressed in many cancers. Here, we report that the oncoprotein, hepatitis B X-interacting protein (HBXIP, LAMTOR5) contributes to abnormal lipid metabolism. We show that high expression of HBXIP in 236 breast cancer patients was significantly associated with decreased overall survival and progression-free survival. Interestingly, the expression of HBXIP was positively related to that of FAS in clinical breast cancer tissues, and HBXIP overexpression in breast cancer cells resulted in FAS upregulation. Mechanistically, HBXIP upregulated SREBP-1c (SREBF1), which activates the transcription of FAS, by directly interacting with and coactivating nuclear receptor (NR) liver X receptors (LXR). Physiologically, LXRs are activated via a coactivator containing NR motif in a ligand-dependent manner. However, in breast cancer cells, HBXIP containing the corepressor/nuclear receptor motif with special flanking sequence could coactivate LXRs independent of ligand. Moreover, overexpressed SREBP-1c was able to activate the transcription of HBXIP, forming a positive-feedback loop. Functionally, HBXIP enhanced lipogenesis, resulting in the growth of breast cancer cells in vitro and in vivo Thus, we conclude that the oncoprotein HBXIP contributes to the abnormal lipid metabolism in breast cancer through LXRs/SREBP-1c/FAS signaling, providing new insights into the mechanisms by which cancer cells reprogram lipid metabolism in their favor. Cancer Res; 76(16); 4696-707. ©2016 AACR.
Collapse
Affiliation(s)
- Yu Zhao
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Hang Li
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Yingyi Zhang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Leilei Li
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Runping Fang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Yinghui Li
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Qian Liu
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Weiying Zhang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Liyan Qiu
- State Key Laboratory of Medicinal Chemical Biology, Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Fabao Liu
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Xiaodong Zhang
- State Key Laboratory of Medicinal Chemical Biology, Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, PR China.
| | - Lihong Ye
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, PR China.
| |
Collapse
|
32
|
Feng G, Shi H, Li J, Yang Z, Fang R, Ye L, Zhang W, Zhang X. MiR-30e suppresses proliferation of hepatoma cells via targeting prolyl 4-hydroxylase subunit alpha-1 (P4HA1) mRNA. Biochem Biophys Res Commun 2016; 472:516-22. [PMID: 26966067 DOI: 10.1016/j.bbrc.2016.03.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [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: 02/29/2016] [Accepted: 03/05/2016] [Indexed: 12/12/2022]
Abstract
Aberrant microRNA expression has been shown to be characteristic of many cancers. It has been reported that the expression levels of miR-30e are decreased in liver cancer tissues. However, the role of miR-30e in hepatocellular carcinoma remains poorly understood. In the present study, we investigated the significance of miR-30e in hepatocarcinogenesis. Bioinformatics analysis reveals a putative target site of miR-30e in the 3'-untranslated region (3'UTR) of prolyl 4-hydroxylase subunit alpha-1 (P4HA1) mRNA. Moreover, luciferase reporter gene assays verified that miR-30e directly targeted 3'UTR of P4HA1 mRNA. Then, we demonstrated that miR-30e was able to reduce the expression of P4HA1 at the levels of mRNA and protein using reverse transcription-polymerase chain reaction and Western blot analysis. Enforced expression of miR-30e suppressed proliferation of HepG2 cells by 5-ethynyl-2-deoxyuridine (EdU) assay and reduced colony formation of these cells by colony formation analysis. Conversely, anti-miR-30e enhanced the proliferation of hepatoma cells in vitro. Interestingly, the ectopic expression of P4HA1 could efficiently rescue the inhibition of cell proliferation mediated by miR-30e in HepG2 cells. Meanwhile, silencing of P4HA1 abolished the anti-miR-30e-induced proliferation of cells. Clinically, quantitative real-time PCR showed that miR-30e was down-regulated in liver tumor tissues relative to their peritumor tissues. The expression levels of miR-30e were negatively correlated to those of P4HA1 mRNA in clinical liver tumor tissues. Thus, we conclude that miR-30e suppresses proliferation of hepatoma cells through targeting P4HA1 mRNA. Our finding provides new insights into the mechanism of hepatocarcinogenesis.
Collapse
Affiliation(s)
- Guoxing Feng
- State Key Laboratory of Medicinal Chemical Biology, Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Hui Shi
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Jiong Li
- State Key Laboratory of Medicinal Chemical Biology, Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Zhe Yang
- State Key Laboratory of Medicinal Chemical Biology, Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Runping Fang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Lihong Ye
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Weiying Zhang
- State Key Laboratory of Medicinal Chemical Biology, Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, PR China.
| | - Xiaodong Zhang
- State Key Laboratory of Medicinal Chemical Biology, Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, PR China.
| |
Collapse
|
33
|
Shi H, Li Y, Feng G, Li L, Fang R, Wang Z, Qu J, Ding P, Zhang X, Ye L. The oncoprotein HBXIP up-regulates FGF4 through activating transcriptional factor Sp1 to promote the migration of breast cancer cells. Biochem Biophys Res Commun 2016; 471:89-94. [PMID: 26828265 DOI: 10.1016/j.bbrc.2016.01.174] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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: 01/25/2016] [Accepted: 01/28/2016] [Indexed: 10/24/2022]
Abstract
We have reported that the oncoprotein hepatitis B X-interacting protein (HBXIP) is able to promote migration of breast cancer cells. Fibroblast growth factor 4 (FGF4) is a multipotent growth factor and is highly expressed in various human cancers. However, the regulatory mechanism of FGF4 in breast cancer remains poorly understood. In the present study, we report that HBXIP is able to up-regulate FGF4 to enhance the migration of breast cancer cells. Immunohistochemistry staining showed that HBXIP and FGF4 were highly expressed in clinical metastatic lymph nodes of breast tumor. The expression levels of HBXIP were positively related to those of FGF4 in clinical breast cancer tissues. Then, we validated that HBXIP up-regulated the expression of FGF4 at the levels of promoter, mRNA and protein by luciferase reporter gene assays, reverse transcription-polymerase chain reaction and Western blot analysis. Moreover, we found that HBXIP was able to activate FGF4 promoter through transcriptional factor Sp1 by luciferase reporter gene assays. Chromatin immunoprecipitation assays confirmed that HBXIP coactivated Sp1 to stimulate FGF4 promoter. In function, we showed that HBXIP promoted breast cancer cell migration through FGF4 by wound healing and transwell cell migration assays. Thus, we conclude that the oncoprotein HBXIP up-regulates FGF4 through activating transcriptional factor Sp1 to promote the migration of breast cancer cells. Therapeutically, HBXIP may serve as a novel target in breast cancer.
Collapse
Affiliation(s)
- Hui Shi
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin 300071, PR China
| | - Yinghui Li
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin 300071, PR China
| | - Guoxing Feng
- State Key Laboratory of Medicinal Chemical Biology, Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin 300071, PR China
| | - Leilei Li
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin 300071, PR China
| | - Runping Fang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin 300071, PR China
| | - Zhen Wang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin 300071, PR China
| | - Jie Qu
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin 300071, PR China
| | - Peijian Ding
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin 300071, PR China
| | - Xiaodong Zhang
- State Key Laboratory of Medicinal Chemical Biology, Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin 300071, PR China
| | - Lihong Ye
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin 300071, PR China.
| |
Collapse
|
34
|
Li Y, Wang Z, Shi H, Li H, Li L, Fang R, Cai X, Liu B, Zhang X, Ye L. HBXIP and LSD1 Scaffolded by lncRNA Hotair Mediate Transcriptional Activation by c-Myc. Cancer Res 2015; 76:293-304. [PMID: 26719542 DOI: 10.1158/0008-5472.can-14-3607] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 09/19/2015] [Indexed: 11/16/2022]
Abstract
c-Myc is regarded as a transcription factor, but the basis for its function remains unclear. Here, we define a long noncoding RNA (lncRNA)/protein complex that mediates the transcriptional activation by c-Myc in breast cancer cells. Among 388 c-Myc target genes in human MCF-7 breast cancer cells, we found that their promoters could be occupied by the oncoprotein HBXIP. We confirmed that the HBXIP expression correlated with expression of the c-Myc target genes cyclin A, eIF4E, and LDHA. RNAi-mediated silencing of HBXIP abolished c-Myc-mediated upregulation of these target genes. Mechanistically, HBXIP interacted directly with c-Myc through the leucine zippers and recruited the lncRNA Hotair along with the histone demethylase LSD1, for which Hotair serves as a scaffold. Silencing of HBXIP, Hotair, or LSD1 was sufficient to block c-Myc-enhanced cancer cell growth in vitro and in vivo. Taken together, our results support a model in which the HBXIP/Hotair/LSD1 complex serves as a critical effector of c-Myc in activating transcription of its target genes, illuminating long-standing questions on how c-Myc drives carcinogenesis.
Collapse
Affiliation(s)
- Yinghui Li
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, P.R. China
| | - Zhen Wang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, P.R. China
| | - Hui Shi
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, P.R. China
| | - Hang Li
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, P.R. China
| | - Leilei Li
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, P.R. China
| | - Runping Fang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, P.R. China
| | - Xiaoli Cai
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, P.R. China
| | - Bowen Liu
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, P.R. China
| | - Xiaodong Zhang
- State Key Laboratory of Medicinal Chemical Biology, Department of Cancer Research, Institute for Molecular Biology, College of Life Sciences, Nankai University, Tianjin, P.R. China.
| | - Lihong Ye
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, P.R. China.
| |
Collapse
|
35
|
Li L, Fang R, Liu B, Shi H, Wang Y, Zhang W, Zhang X, Ye L. Deacetylation of tumor-suppressor MST1 in Hippo pathway induces its degradation through HBXIP-elevated HDAC6 in promotion of breast cancer growth. Oncogene 2015; 35:4048-57. [PMID: 26657153 DOI: 10.1038/onc.2015.476] [Citation(s) in RCA: 50] [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] [Received: 07/02/2015] [Revised: 10/25/2015] [Accepted: 11/17/2015] [Indexed: 12/12/2022]
Abstract
Reduction or loss of tumor-suppressor mammalian STE20-like kinase 1 (MST1) in Hippo pathway contributes to the tumorigenesis. However, the mechanism leading to reduction of MST1 in cancers remains poorly understood. In this study, we explored the hypothesis that the oncoprotein hepatitis B X-interacting protein (HBXIP) is involved in the reduction of MST1 in breast cancer. Immunohistochemical analysis of tissue microarrays revealed that the expression of HBXIP was negatively associated with that of MST1 in 98 clinical breast tissue samples. Then we found that HBXIP could posttranslationally downregulate MST1 in breast cancer cells. Mechanistically, we identified that MST1 could be acetylated on its lysine 35 residue in the cells. Strikingly, the treatment with trichostatin A, an inhibitor of histone deacetylases (HDACs), markedly increased the levels of MST1 acetylation and protein in the cells. Interestingly, the oncoprotein HBXIP could significantly inhibit acetylation of MST1, resulting in the reduction of MST1 protein. Notably, we revealed that the HDAC6 could reduce the protein levels of MST1 through deacetylation modification of MST1 in the cells. Moreover, our data revealed that HBXIP upregulated HDAC6 at the levels of mRNA and protein by activating transcription factor nuclear factor-κB. Deacetylation of MST1 promoted the interaction of MST1 with HSC70 in the cells, resulting in a lysosome-dependent degradation of MST1 via chaperone-mediated autophagy (CMA). Functionally, the reduction of tumor-suppressor MST1 mediated by HBXIP promoted the growth of breast cancer cells in vitro and in vivo. Thus we conclude that the deacetylation of MST1 mediated by HBXIP-enhanced HDAC6 results in MST1 degradation in a CMA manner in promotion of breast cancer growth. Our finding provides new insights into the mechanism of tumor-suppressor MST1 reduction in breast cancer.
Collapse
Affiliation(s)
- L Li
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - R Fang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - B Liu
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - H Shi
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - Y Wang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - W Zhang
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - X Zhang
- State Key Laboratory of Medicinal Chemical Biology, Department of Cancer Research, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| | - L Ye
- State Key Laboratory of Medicinal Chemical Biology, Department of Biochemistry, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
| |
Collapse
|
36
|
Fang R, Cui Q, Sun J, Duan X, Ma X, Wang W, Cheng B, Liu Y, Hou Y, Bai G. PDK1/Akt/PDE4D axis identified as a target for asthma remedy synergistic with β2 AR agonists by a natural agent arctigenin. Allergy 2015; 70:1622-32. [PMID: 26335809 DOI: 10.1111/all.12763] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND Asthma is a heterogenetic disorder characterized by chronic inflammation with variable airflow obstruction and airway hyper-responsiveness. As the most potent and popular bronchodilators, β2 adrenergic receptor (β2 AR) agonists bind to the β2 ARs that are coupled via a stimulatory G protein to adenylyl cyclase, thereby improving cAMP accumulation and resulting in airway smooth muscle relaxation. We previously demonstrated arctigenin had a synergistic function with the β2 AR agonist, but the target for this remained elusive. METHOD Chemical proteomics capturing was used to enrich and uncover the target of arctigenin in human bronchial smooth muscle cells, and reverse docking and molecular dynamic stimulation were performed to evaluate the binding of arctigenin and its target. In vitro enzyme activities and protein levels were demonstrated with special kits and Western blotting. Finally, guinea pig tracheal muscle segregation and ex vivo function were analysed. RESULTS Arctigenin bound to PDK1 with an ideal binding free energy -25.45 kcal/mol and inhibited PDK1 kinase activity without changing its protein level. Additionally, arctigenin reduced PKB/Akt-induced phosphorylation of PDE4D, which was first identified in this study. Attenuation of PDE4D resulted in cAMP accumulation in human bronchial smooth muscle. The inhibition of PDK1 showed a synergistic function with β2 AR agonists and relaxed the constriction of segregated guinea pig tracheal muscle. CONCLUSIONS The PDK1/Akt/PDE4D axis serves as a novel asthma target, which may benefit airflow obstruction.
Collapse
Affiliation(s)
- R. Fang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Tianjin Key Laboratory of Molecular Drug Research; Nankai University; Tianjin China
- State Key Laboratory of Natural and Biomimetic Drugs; Peking University; Beijing China
- State Key Laboratory of Medicinal Chemical Biology; Department of Biochemistry; College of Life Sciences; Nankai University; Tianjin China
| | - Q. Cui
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Tianjin Key Laboratory of Molecular Drug Research; Nankai University; Tianjin China
| | - J. Sun
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Tianjin Key Laboratory of Molecular Drug Research; Nankai University; Tianjin China
| | - X. Duan
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Tianjin Key Laboratory of Molecular Drug Research; Nankai University; Tianjin China
| | - X. Ma
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Tianjin Key Laboratory of Molecular Drug Research; Nankai University; Tianjin China
| | - W. Wang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Tianjin Key Laboratory of Molecular Drug Research; Nankai University; Tianjin China
| | - B. Cheng
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Tianjin Key Laboratory of Molecular Drug Research; Nankai University; Tianjin China
| | - Y. Liu
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Tianjin Key Laboratory of Molecular Drug Research; Nankai University; Tianjin China
| | - Y. Hou
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Tianjin Key Laboratory of Molecular Drug Research; Nankai University; Tianjin China
- State Key Laboratory of Natural and Biomimetic Drugs; Peking University; Beijing China
| | - G. Bai
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy; Tianjin Key Laboratory of Molecular Drug Research; Nankai University; Tianjin China
| |
Collapse
|
37
|
Milhano N, Saito TB, Bechelli J, Fang R, Vilhena M, DE Sousa R, Walker DH. The role of Rhipicephalus sanguineus sensu lato saliva in the dissemination of Rickettsia conorii in C3H/HeJ mice. Med Vet Entomol 2015; 29:225-229. [PMID: 26011701 DOI: 10.1111/mve.12118] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 12/24/2014] [Accepted: 01/05/2015] [Indexed: 06/04/2023]
Abstract
Animal models have been developed for the study of rickettsial pathogenesis. However, to understand what occurs during the natural route of rickettsial transmission via the tick bite, the role of tick saliva should be considered in these models. To address this, we analysed the role of tick saliva in the transmission of Rickettsia conorii (Rickettsiales: Rickettsiaceae) in a murine host by intradermally (i.d.) inoculating two groups of susceptible C3H/HeJ mice with this Rickettsia, and infesting one group with nymphal Rhipicephalus sanguineus sensu lato (Ixodida: Ixodidae) ticks. Quantification of bacterial loads and mRNA levels of interleukin-1β (IL-1β), IL-10 and NF-κB was performed in C3H/HeJ lung samples by real-time quantitative polymerase chain reaction (PCR) and real-time reverse transcriptase PCR, respectively. Lung histology was examined to evaluate the pathological manifestations of infection. No statistically significant difference in bacterial load in the lungs of mice was observed between these two groups; however, a statistically significant difference was observed in levels of IL-1β and NF-κB, both of which were higher in the group inoculated with rickettsiae but not infected with ticks. Lung histology in both groups of animals revealed infiltration of inflammatory cells. Overall, this study showed that i.d. inoculation of R. conorii caused infection in the lungs of C3H/HeJ mice and tick saliva inhibited proinflammatory effects.
Collapse
Affiliation(s)
- N Milhano
- Centre for the Study of Vectors and Infectious Diseases Dr Francisco Cambournac, National Institute of Health Dr Ricardo Jorge, Águas de Moura, Portugal
| | - T B Saito
- Department of Pathology, Center for Biodefense and Emerging Infectious Diseases, University of Texas Medical Branch, Galveston, TX, U.S.A
| | - J Bechelli
- Department of Pathology, Center for Biodefense and Emerging Infectious Diseases, University of Texas Medical Branch, Galveston, TX, U.S.A
| | - R Fang
- Department of Pathology, Center for Biodefense and Emerging Infectious Diseases, University of Texas Medical Branch, Galveston, TX, U.S.A
| | - M Vilhena
- Department of Veterinary Medicine, University of Évora, Évora, Portugal
| | - R DE Sousa
- Centre for the Study of Vectors and Infectious Diseases Dr Francisco Cambournac, National Institute of Health Dr Ricardo Jorge, Águas de Moura, Portugal
| | - D H Walker
- Department of Pathology, Center for Biodefense and Emerging Infectious Diseases, University of Texas Medical Branch, Galveston, TX, U.S.A
| |
Collapse
|
38
|
Li H, Liu Q, Wang Z, Fang R, Shen Y, Cai X, Gao Y, Li Y, Zhang X, Ye L. The oncoprotein HBXIP modulates the feedback loop of MDM2/p53 to enhance the growth of breast cancer. J Biol Chem 2015; 290:22649-61. [PMID: 26229107 DOI: 10.1074/jbc.m115.658468] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [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: 04/16/2015] [Indexed: 12/26/2022] Open
Abstract
MDM2 and p53 form a negative feedback loop, in which p53 as a transcription factor positively regulates MDM2 and MDM2 negatively regulates tumor suppressor p53 through promoting its degradation. However, the mechanism of the feedback loop is poorly understood in cancers. We had reported previously that the oncoprotein hepatitis B X-interacting protein (HBXIP) is a key oncoprotein in the development of cancer. Thus, we supposed that HBXIP might be involved in the event. Here, we observed that the expression levels of HBXIP were positively correlated to those of MDM2 in clinical breast cancer tissues. Interestingly, HBXIP was able to up-regulate MDM2 at the levels of mRNA and protein in MCF-7 breast cancer cells. Mechanically, HBXIP increased the promoter activities of MDM2 through directly binding to p53 in the P2 promoter of MDM2. Strikingly, we identified that the acetyltransferase p300 was recruited by HBXIP to p53 in the promoter of MDM2. Moreover, we validated that HBXIP enhanced the p53 degradation mediated by MDM2. Functionally, the knockdown of HBXIP or/and p300 inhibited the proliferation of breast cancer cells in vitro, and the depletion of MDM2 or overexpression of p53 significantly blocked the HBXIP-promoted growth of breast cancer in vitro and in vivo. Thus, we concluded that highly expressed HBXIP accelerates the MDM2-mediated degradation of p53 in breast cancer through modulating the feedback loop of MDM2/p53, resulting in the fast growth of breast cancer cells. Our findings provide new insights into the mechanism of the acceleration of the MDM2/p53 feedback loop in the development of cancer.
Collapse
Affiliation(s)
- Hang Li
- From the Department of Biochemistry and
| | - Qian Liu
- From the Department of Biochemistry and
| | - Zhen Wang
- From the Department of Biochemistry and
| | | | - Yu Shen
- From the Department of Biochemistry and
| | | | - Yuen Gao
- the Department of Cancer Research, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | | | - Xiaodong Zhang
- the Department of Cancer Research, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Lihong Ye
- From the Department of Biochemistry and
| |
Collapse
|
39
|
Wang GY, Zhang CC, Ren K, Zhang PP, Liu CH, Zheng ZA, Chen Y, Fang R. Treatment of vertebral body compression fractures using percutaneous kyphoplasty guided by a combination of computed tomography and C-arm fluoroscopy with finger-touch guidance to determine the needle entry point. Genet Mol Res 2015; 14:1546-56. [PMID: 25867298 DOI: 10.4238/2015.march.6.2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study aimed to evaluate the results and complications of image-guided percutaneous kyphoplasty (PKP) using computed tomography (CT) and C-arm fluoroscopy, with finger-touch guidance to determine the needle entry point. Of the 86 patients (106 PKP) examined, 56 were treated for osteoporotic vertebral compression fractures and 30 for vertebral tumors. All patients underwent image-guided treatment using CT and conventional fluoroscopy, with finger-touch identification of a puncture point within a small incision (1.5 to 2 cm). Partial or complete pain relief was achieved in 98% of patients within 24 h of treatment. Moreover, a significant improvement in functional mobility and reduction in analgesic use was observed. CT allowed the detection of cement leakage in 20.7% of the interventions. No bone cement leakages with neurologic symptoms were noted. All work channels were made only once, and bone cement was distributed near the center of the vertebral body. Our study confirms the efficacy of PKP treatment in osteoporotic and oncological patients. The combination of CT and C-arm fluoroscopy with finger-touch guidance reduces the risk of complications compared with conventional fluoroscopy alone, facilitates the detection of minor cement leakage, improves the operative procedure, and results in a favorable bone cement distribution.
Collapse
Affiliation(s)
- G Y Wang
- Department of Orthopedics, Wuhu No. 2 People's Hospital, Wannan Medical College, Anhui, China
| | - C C Zhang
- Department of Orthopedics, Changhai Hospital, Second Military Medical University of Chinese PLA, Shanghai, China
| | - K Ren
- Department of Orthopedics, Gen Hospital of Nanjin Military Area Command, Nanjin, Jiangsu, China
| | - P P Zhang
- Department of Orthopedics, Wuhu No. 2 People's Hospital, Wannan Medical College, Anhui, China
| | - C H Liu
- Department of Orthopedics, Wuhu No. 2 People's Hospital, Wannan Medical College, Anhui, China
| | - Z A Zheng
- Department of Orthopedics, Wuhu No. 2 People's Hospital, Wannan Medical College, Anhui, China
| | - Y Chen
- Department of Orthopedics, Wuhu No. 2 People's Hospital, Wannan Medical College, Anhui, China
| | - R Fang
- Department of Orthopedics, Wuhu No. 2 People's Hospital, Wannan Medical College, Anhui, China
| |
Collapse
|
40
|
Liu Z, Asila A, Aikenmu K, Zhao J, Meng Q, Fang R. Influence of ERCC2 gene polymorphisms on the treatment outcome of osteosarcoma. Genet Mol Res 2015; 14:12967-72. [DOI: 10.4238/2015.october.21.17] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
41
|
Hou Y, Cheng B, Zhou M, Fang R, Jiang M, Hou W, Bai G. Searching for synergistic bronchodilators and novel therapeutic regimens for chronic lung diseases from a traditional Chinese medicine, Qingfei Xiaoyan Wan. PLoS One 2014; 9:e113104. [PMID: 25397687 PMCID: PMC4232530 DOI: 10.1371/journal.pone.0113104] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 10/14/2014] [Indexed: 12/31/2022] Open
Abstract
Classical Chinese pharmacopeias describe numerous excellent herbal formulations, and each prescription is an outstanding pool of effective compounds for drug discovery. Clarifying the bioactivity of the combined mechanisms of the ingredients in complex traditional Chinese medicine formulas is challenging. A classical formula known as Qingfei Xiaoyan Wan, used clinically as a treatment for prevalent chronic lung disease, was investigated in this work. A mutually enhanced bioactivity-guided ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry (UPLC/Q-TOF-MS) characterization system was proposed, coupled with a dual-luciferase reporter assay for β2AR-agonist cofactor screening. Arctiin, arctigenin, descurainoside and descurainolide B, four lignin compounds that showed synergistic bronchodilation effects with ephedrine, were revealed. The synergistic mechanism of arctigenin with the β2ARagonist involved with the reduction of free Ca2+ was clarified by a dual-luciferase reporter assay for intracellular calcium and the Ca2+ indicator fluo-4/AM to monitor changes in the fluorescence. The relaxant and contractile responses of airway smooth muscle are regulated by crosstalk between the intracellular cAMP and calcium signaling pathways. Our data indicated the non-selective βAR agonist ephedrine as the principal bronchodilator of the formula, whereas the lignin ingredients served as adjuvant ingredients. A greater understanding of the mechanisms governing the control of these pathways, based on conventional wisdom, could lead to the identification of novel therapeutic targets or new agents for the treatment of asthma and COPD.
Collapse
Affiliation(s)
- Yuanyuan Hou
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, China
| | - Binfeng Cheng
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, China
| | - Mengge Zhou
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, China
| | - Runping Fang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, China
| | - Min Jiang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, China
| | - Wenbin Hou
- Tianjin Engineering Laboratory of Quality Control Techniques for TCM, Tianjin Institute of Pharmaceutical Research, Tianjin, China
| | - Gang Bai
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, China
- * E-mail:
| |
Collapse
|
42
|
Zhao Z, Yin Y, Wang Z, Fang R, Wu H, Jiang M, Bai G, Luo G. Arctigenin exhibits relaxation effect on bronchus by affecting transmembrane flow of calcium. Biol Trace Elem Res 2013; 156:181-7. [PMID: 24114345 DOI: 10.1007/s12011-013-9839-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Accepted: 09/26/2013] [Indexed: 11/27/2022]
Abstract
Arctigenin, a lignan extract from Arctium lappa (L.), exhibits anti-inflammation, antioxidation, vasodilator effects, etc. However, the effects of arctigenin on bronchus relaxation are not well investigated. This study aimed to investigate how arctigenin regulates bronchus tone and calcium ion (Ca(2+)) flow. Trachea strips of guinea pigs were prepared for testing the relaxation effect of arctigenin to acetylcholine, histamine, KCl, and CaCl2, respectively. Furthermore, L-type calcium channel currents were detected by patch-clamp, and intracellular Ca(2+) concentration was detected by confocal microscopy. The results showed that arctigenin exhibited relaxation effect on tracheae to different constrictors, and this was related to decreasing cytoplasmic Ca(2+) concentration by inhibiting Ca(2+) influx partly through L-type calcium channel as well as promoting Ca(2+) efflux. In summary, this study provides new insight into the mechanisms by which arctigenin exhibits relaxation effect on bronchus and suggests its potential use for airway disease therapy.
Collapse
Affiliation(s)
- Zhenying Zhao
- College of Pharmacy, Nankai University, Weijin Road 94#, Tianjin, 300071, People's Republic of China
| | | | | | | | | | | | | | | |
Collapse
|
43
|
|
44
|
Williams JS, Chamarthi B, Goodarzi MO, Pojoga LH, Sun B, Garza AE, Raby BA, Adler GK, Hopkins PN, Brown NJ, Jeunemaitre X, Ferri C, Fang R, Leonor T, Cui J, Guo X, Taylor KD, Chen YDI, Xiang A, Raffel LJ, Buchanan TA, Rotter JI, Williams GH, Shi Y. Lysine-specific demethylase 1: an epigenetic regulator of salt-sensitive hypertension. Am J Hypertens 2012; 25:812-7. [PMID: 22534796 DOI: 10.1038/ajh.2012.43] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Hypertension (HTN) represents a complex heritable disease in which environmental factors may directly affect gene function via epigenetic mechanisms. The aim of this study was to test the hypothesis that dietary salt influences the activity of a histone-modifying enzyme, lysine-specific demethylase 1 (LSD-1), which in turn is associated with salt-sensitivity of blood pressure (BP). METHODS Animal and human studies were performed. Salt-sensitivity of LSD-1 expression was assessed in wild-type (WT) and LSD-1 heterozygote knockout (LSD-1(+/-)) mice. Clinical relevance was tested by multivariate associations between single-nuclear polymorphisms (SNPs) in the LSD-1 gene and salt-sensitivity of BP, with control of dietary sodium, in a primary African-American hypertensive cohort and two replication hypertensive cohorts (Caucasian and Mexican-American). RESULTS LSD-1 expression was modified by dietary salt in WT mice with lower levels associated with liberal salt intake. LSD-1(+/-) mice expressed lower LSD-1 protein levels than WT mice in kidney tissue. Similar to LSD-1(+/-) mice, African-American minor allele carriers of two LSD-1 SNPs displayed greater change in systolic BP (SBP) in response to change from low to liberal salt diet (rs671357, P = 0.01; rs587168, P = 0.005). This association was replicated in the Hispanic (rs587168, P = 0.04) but not the Caucasian cohort. Exploratory analyses demonstrated decreased serum aldosterone concentrations in African-American minor allele carriers similar to findings in the LSD-1(+/-) mice, decreased α-EnaC expression in LSD-1(+/-) mice, and impaired renovascular responsiveness to salt loading in minor allele carriers. CONCLUSION The results of this translational research study support a role for LSD-1 in the pathogenesis of salt-sensitive HTN.
Collapse
|
45
|
Zhen YH, Fang R, Ding C, Jin LJ, Li XY, Diao YP, Shu XH, Ma XC, Xu YP. Efficacy of specific IgY for treatment of lipopolysaccharide-induced endotoxemia using a mouse model. J Appl Microbiol 2011; 111:1524-32. [PMID: 21933310 DOI: 10.1111/j.1365-2672.2011.05155.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS To estimate the efficacy of specific egg yolk immunoglobulin (IgY) for the treatment of lipopolysaccharide (LPS)-induced endotoxemia using a mouse model. METHODS AND RESULTS Specific IgY was obtained from the yolk of hens immunized with formaldehyde-killed Escherichia coli O111 and showed a high binding activity to LPS when subjected to an ELISA. Endotoxemia was induced in mice by intraperitoneal injection of LPS at a dose of 20 mg kg(-1) for measuring survival rate and 10 mg kg(-1) for cytokine measurement. The survival rate of mice treated with 200 mg kg(-1) specific IgY or 5 mg kg(-1) dexamethasone was 70% while none of the mice in the normal saline-treated group survived more than 7 days. Specific IgY significantly (P < 0.05) decreased tumour necrosis factor-α (TNF-α) level and increased interleukin-10 (IL-10) level in the serum of endotoxemia mice. Specific IgY had less of an effect on TNF-α than dexamethasone, while its effect on increasing IL-10 was stronger than dexamethasone. Haematoxylin and eosin-stained sections indicated that IgY attenuated the damage to the lung and liver observed in mice with endotoxemia. CONCLUSIONS The specific IgY increased the survival rate of mice with endotoxemia induced by LPS, down-regulated TNF-α and up-regulated IL-10 in serum and attenuated the extent of damage to the lung and liver. SIGNIFICANCE AND IMPACT OF THE STUDY The specific IgY has potential for the treatment of LPS-induced endotoxemia.
Collapse
Affiliation(s)
- Y-H Zhen
- College of Pharmacy, Dalian Medical University, Dalian, China
| | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Bai XP, Zheng HX, Fang R, Wang TR, Hou XL, Li Y, Chen XB, Tian WM. Fabrication of engineered heart tissue grafts from alginate/collagen barium composite microbeads. Biomed Mater 2011; 6:045002. [DOI: 10.1088/1748-6041/6/4/045002] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
47
|
Gu H, Fang R, O'Keefe TJ, O'Keefe MJ, Shih WS, Snook JAM, Leedy KD, Cortez R. Organic Solution Deposition of Copper Seed Layers onto Barrier Metals. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-612-d9.19.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractSpontaneous deposition of copper seed layers from metal bearing organic based solutions onto sputter deposited titanium, titanium nitride, and tantalum diffusion barrier thin films has been demonstrated. Based on electrochemically driven cementation exchange reactions, the process was used to produce adherent, selectively deposited copper metal particulate films on blanket and patterned barrier metal thin films on silicon substrates. The organic solution deposited copper films were capable of acting as seed layers for subsequent electrolytic and electroless copper deposition processes using standard plating baths. Electroless and electrolytic copper films from 0.1µm to 1.0µm thick were produced on a variety of samples on which the organic solution copper acted as the initial catalytic seed layer. The feasibility of using organic solution deposited palladium as a seed layer followed by electroless copper deposition has also been demonstrated. In addition, experiments conducted on patterned barrier metal samples with exposed areas of dielectric such as polyimide indicated that no organic solution copper or palladium deposition occurred on the insulating materials.
Collapse
|
48
|
Tomas C, Axler-DiPerte G, Budimlija ZM, Børsting C, Coble MD, Decker AE, Eisenberg A, Fang R, Fondevila M, Fredslund SF, Gonzalez S, Hansen AJ, Hoff-Olsen P, Haas C, Kohler P, Kriegel AK, Lindblom B, Manohar F, Maroñas O, Mogensen HS, Neureuther K, Nilsson H, Scheible MK, Schneider PM, Sonntag ML, Stangegaard M, Syndercombe-Court D, Thacker CR, Vallone PM, Westen AA, Morling N. Autosomal SNP typing of forensic samples with the GenPlex™ HID System: results of a collaborative study. Forensic Sci Int Genet 2010; 5:369-75. [PMID: 20650697 DOI: 10.1016/j.fsigen.2010.06.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 06/24/2010] [Accepted: 06/24/2010] [Indexed: 10/19/2022]
Abstract
The GenPlex™ HID System (Applied Biosystems - AB) offers typing of 48 of the 52 SNPforID SNPs and amelogenin. Previous studies have shown a high reproducibility of the GenPlex™ HID System using 250-500pg DNA of good quality. An international exercise was performed by 14 laboratories (9 in Europe and 5 in the US) in order to test the robustness and reliability of the GenPlex™ HID System on forensic samples. Three samples with partly degraded DNA and 10 samples with low amounts of DNA were analyzed in duplicates using various amounts of DNA. In order to compare the performance of the GenPlex™ HID System with the most commonly used STR kits, 500pg of partly degraded DNA from three samples was typed by the laboratories using one or more STR kits. The median SNP typing success rate was 92.3% with 500pg of partly degraded DNA. Three of the fourteen laboratories counted for more than two thirds of the locus dropouts. The median percentage of discrepant results was 0.2% with 500pg degraded DNA. An increasing percentage of locus dropouts and discrepant results were observed when lower amounts of DNA were used. Different success rates were observed for the various SNPs. The rs763869 SNP was the least successful. With the exception of the MiniFiler™ kit (AB), GenPlex™ HID performed better than five other tested STR kits. When partly degraded DNA was analyzed, GenPlex™ HID showed a very low mean mach probability, while all STR kits except MiniFiler™ had very limited discriminatory power.
Collapse
Affiliation(s)
- C Tomas
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health Sciences, University of Copenhagen, 11 Frederik V's Vej, DK-2100 Copenhagen, Denmark.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Wang L, He L, Fang R, Song Q, Tu P, Jenkins A, Zhou Y, Zhao J. Loop-mediated isothermal amplification (LAMP) assay for detection of Theileria sergenti infection targeting the p33 gene. Vet Parasitol 2010; 171:159-62. [DOI: 10.1016/j.vetpar.2010.02.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2009] [Revised: 02/18/2010] [Accepted: 02/25/2010] [Indexed: 11/30/2022]
|
50
|
Zhen YH, Jin LJ, Guo J, Li XY, Li Z, Fang R, Xu YP. Characterization of specific egg yolk immunoglobulin (IgY) against mastitis-causing Staphylococcus aureus. J Appl Microbiol 2010; 105:1529-35. [PMID: 19146490 DOI: 10.1111/j.1365-2672.2008.03920.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS To evaluate the in vitro activity of egg yolk immunoglobulin (IgY) against mastitis-causing Staphylococcus aureus. METHODS AND RESULTS Specific IgY was produced by immunizing hens with formaldehyde-killed Staph. aureus, using a bacterial strain known to cause mastitis. The IgY, of 94% purity, was obtained from yolks by water dilution, salt precipitations, ultrafiltration and gel filtration. ELISA indicated that the IgY produced was specific to the antigen and five Staph. aureus isolates obtained from mastitic cows. The growth of Staph. aureus was inhibited by specific IgY at concentrations from 1 to 10 mg ml(-1) in a dose-dependent manner. The phagocytosis of Staph. aureus by milk macrophages was enhanced in the presence of specific IgY with the highest phagocytic percentage being 30% higher than that without IgY (P < 0.05). CONCLUSIONS The specific IgY against mastitis-causing Staph. aureus inhibited the growth of Staph. aureus and enhanced the phagocytosis of Staph. aureus by milk macrophages. SIGNIFICANCE AND IMPACT OF THE STUDY Specific IgY would be a potential treatment for bovine mastitis.
Collapse
Affiliation(s)
- Y-H Zhen
- Department of Bioscience and Biotechnology, Dalian University of Technology, Dalian, China
| | | | | | | | | | | | | |
Collapse
|