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Wang CZ, Wan C, Li CH, Liang GG, Luo Y, Zhang CF, Zhang QH, Ma Q, Wang AH, Lager M, Jiang TL, Hou L, Yuan CS. Ruthenium-dihydroartemisinin complex: a promising new compound for colon cancer prevention via G1 cell cycle arrest, apoptotic induction, and adaptive immune regulation. Cancer Chemother Pharmacol 2024; 93:411-425. [PMID: 38191768 DOI: 10.1007/s00280-023-04623-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 11/17/2023] [Indexed: 01/10/2024]
Abstract
BACKGROUND Artemisinin (ART) and its derivatives are important antimalaria agents and have received increased attention due to their broad biomedical effects, such as anticancer and anti-inflammation activities. Recently, ruthenium-derived complexes have attracted considerable attention as their anticancer potentials were observed in preclinical and clinical studies. METHODS To explore an innovative approach in colorectal cancer (CRC) management, we synthesized ruthenium-dihydroartemisinin complex (D-Ru), a novel metal-based artemisinin derivative molecule, and investigated its anticancer, anti-inflammation, and adaptive immune regulatory properties. RESULTS Compared with its parent compound, ART, D-Ru showed stronger antiproliferative effects on the human CRC cell lines HCT-116 and HT-29. The cancer cell inhibition of D-Ru comprised G1 cell cycle arrest via the downregulation of cyclin A and the induction of apoptosis. ART and D-Ru downregulated the expressions of pro-inflammatory cytokines IL-1β, IL-6, and IL-8. Although ART and D-Ru did not suppress Treg cell differentiation, they significantly inhibited Th1 and Th17 cell differentiation. CONCLUSIONS Our results demonstrated that D-Ru, a novel ruthenium complexation of ART, remarkably enhanced its parent compound's anticancer action, while the anti-inflammatory potential was not compromised. The molecular mechanisms of action of D-Ru include inhibition of cancer cell growth via cell cycle arrest, induction of apoptosis, and anti-inflammation via regulation of adaptive immunity.
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Affiliation(s)
- Chong-Zhi Wang
- Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, University of Chicago, 5841 South Maryland Avenue, MC 4028, Chicago, IL, 60637, USA.
- Central Laboratory, The No. 1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming, 650021, China.
| | - Chunping Wan
- Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, University of Chicago, 5841 South Maryland Avenue, MC 4028, Chicago, IL, 60637, USA
- Central Laboratory, The No. 1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming, 650021, China
| | - Cang-Hai Li
- Tang Center for Traditional Chinese Medicine Research, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Guo-Gang Liang
- Tang Center for Traditional Chinese Medicine Research, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yun Luo
- Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, University of Chicago, 5841 South Maryland Avenue, MC 4028, Chicago, IL, 60637, USA
| | - Chun-Feng Zhang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Qi-Hui Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Qinge Ma
- Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, University of Chicago, 5841 South Maryland Avenue, MC 4028, Chicago, IL, 60637, USA
| | - Angela H Wang
- Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, University of Chicago, 5841 South Maryland Avenue, MC 4028, Chicago, IL, 60637, USA
| | - Mallory Lager
- Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, University of Chicago, 5841 South Maryland Avenue, MC 4028, Chicago, IL, 60637, USA
| | - Ting-Liang Jiang
- Tang Center for Traditional Chinese Medicine Research, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Lifei Hou
- Program in Cellular and Molecular Medicine, Boston Children's Hospital and Department of Pediatrics, Harvard Medical School, Boston, MA, 02115, USA
| | - Chun-Su Yuan
- Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, University of Chicago, 5841 South Maryland Avenue, MC 4028, Chicago, IL, 60637, USA
- Committee On Clinical Pharmacology and Pharmacogenomics, University of Chicago, Chicago, IL, 60637, USA
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Zheng N, Xie Y, Zhou M, Liu Y, Xu H, Zeng R, Wan C, Li M. Utilizing the photodynamic properties of curcumin to disrupt biofilms in Cutibacterium acnes: A promising approach for treating acne. Photodiagnosis Photodyn Ther 2024; 45:103928. [PMID: 38070633 DOI: 10.1016/j.pdpdt.2023.103928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/27/2023] [Accepted: 12/06/2023] [Indexed: 02/15/2024]
Abstract
BACKGROUND The treatment of acne vulgaris is often challenging due to the antibiotic resistance frequently observed in Cutibacterium acnes (C.acnes), a prevalent bacterium linked to this condition. OBJECTIVE The objective of this research was to examine the impact of curcumin photodynamic therapy (PDT) on the survival of C.acnes and activity of biofilms produced by this microorganism. METHODS Following the Clinical and Laboratory Standards Institute (CLSI) guidelines, we assessed the drug sensitivity of 25 clinical C.acnes strains to five antibiotics (erythromycin, clindamycin, tetracycline, doxycycline, minocycline) and curcumin by implementing the broth microdilution technique. In addition, we established C.acnes biofilms in a laboratory setting and subjected them to curcumin-PDT(curcumin combined with blue light of 180 J/cm2). Afterwards, we evaluated their viability using the XTT assay and observed them using confocal laser scanning microscopy. RESULTS The result revealed varying resistance rates among the tested antibiotics and curcumin, with erythromycin, clindamycin, tetracycline, doxycycline, minocycline, and curcumin exhibiting resistance rates of 72 %, 44 %, 36 %, 28 %, 0 %, and 100 %, respectively. In the curcumin-PDT inhibition tests against four representative antibiotic-resistant strains, it was found that the survival rate of all strains of planktonic C. acnes was reduced, and the higher the concentration of curcumin, the lower the survival rate. Furthermore, in the biofilm inhibition tests, the vitality and three-dimensional structure of the biofilms were disrupted, and the inhibitory effect became more significant with higher concentrations of curcumin. CONCLUSION The results emphasize the possibility of using curcumin PDT as an alternative approach for the treatment of C.acnes, especially in instances of antibiotic-resistant variations and infections related to biofilms.
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Affiliation(s)
- Nana Zheng
- Department of Dermatology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210003, China
| | - Yuanyuan Xie
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Center for Global Health, School of Public Health, Nanjing Medical University, Hospital for Skin Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, 12 Jiang Wang Miao Street, Nanjing, Jiangsu 210042, China
| | - Meng Zhou
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Center for Global Health, School of Public Health, Nanjing Medical University, Hospital for Skin Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, 12 Jiang Wang Miao Street, Nanjing, Jiangsu 210042, China
| | - Yuzhen Liu
- Department of Dermatology, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing 211100, China
| | - Haoxiang Xu
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Center for Global Health, School of Public Health, Nanjing Medical University, Hospital for Skin Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, 12 Jiang Wang Miao Street, Nanjing, Jiangsu 210042, China
| | - Rong Zeng
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Center for Global Health, School of Public Health, Nanjing Medical University, Hospital for Skin Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, 12 Jiang Wang Miao Street, Nanjing, Jiangsu 210042, China; Department of Dermatology, Yunnan Provincia Hospital of Traditional Chinese Medicine, 120 Guanghua Street, Kunming, Yunnan 650000, China.
| | - Chunping Wan
- Department of Dermatology, Yunnan Provincia Hospital of Traditional Chinese Medicine, 120 Guanghua Street, Kunming, Yunnan 650000, China; Traditional Chinese Medicine Hospital of Chuxiong, Yunnan, 675000, PR China.
| | - Min Li
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Center for Global Health, School of Public Health, Nanjing Medical University, Hospital for Skin Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, 12 Jiang Wang Miao Street, Nanjing, Jiangsu 210042, China.
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Lv Z, Lv S, Li Q, Xia Y, Feng Z, Zhang H, Yang H, Wu Z, Zou N, Mo Q, Gu Q, Ying S, Wang X, Qin D, Wan C. A third (booster) dose of the inactivated SARS-CoV-2 vaccine elicits immunogenicity and T follicular helper cell responses in people living with HIV. Front Immunol 2023; 14:1264160. [PMID: 38045691 PMCID: PMC10690609 DOI: 10.3389/fimmu.2023.1264160] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/30/2023] [Indexed: 12/05/2023] Open
Abstract
Introduction This study sought to explore the immunogenicity of a booster dose of an inactivated severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine in people living with human immunodeficiency virus (HIV) and identify the factors affecting the magnitude of anti-SARS-CoV-2 antibody levels. Materials and methods A total of 34 people living with HIV (PLWH) and 34 healthy donors (HD) were administered a booster dose of the same SARS-CoV-2 vaccine. Anti-SARS-CoV-2 antibody and immunoglobulin G (IgG) levels were measured using the SARS-CoV-2 S protein neutralizing antibody Enzyme-Linked Immunosorbent Assay (ELISA) and 2019-nCov IgG Chemiluminescent Immunoassay Microparticles, respectively. Spearman correlation analysis was used to measure the correlation between laboratory markers and neutralizing antibody and IgG levels. Peripheral blood mononuclear cells (PBMCs) were extracted from each subject using density gradient centrifugation and the numbers of memory T and T follicular helper (Tfh) cells were determined using flow cytometry. Results PLWH had a marked reduction in CD4 and B cell levels that was accompanied by a lower CD4/CD8 T cell ratio. However, those who received a supplementary dose of inactivated SARS-CoV-2 vaccines exhibited antibody positivity rates that were analogous to levels previously observed. The booster vaccine led to a reduction in IgG and neutralizing antibody levels and the amplitude of this decline was substantially higher in the PLWH than HD group. Correlation analyses revealed a strong correlation between neutralizing antibody levels and the count and proportion of CD4 cells. Anti-SARS-CoV-2 IgG antibody levels followed a similar trend. The expression of memory T and Tfh cells was considerably lower in the PLWH than in the HD group. Discussion PLWH had an attenuated immune response to a third (booster) administration of an inactivated SARS-CoV-2 vaccine, as shown by lower neutralizing antibody and IgG levels. This could be attributed to the reduced responsiveness of CD4 cells, particularly memory T and cTfh subsets. CD4 and cTfh cells may serve as pivotal markers of enduring and protective antibody levels. Vaccination dose recalibration may be critical for HIV-positive individuals, particularly those with a lower proportion of CD4 and Tfh cells.
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Affiliation(s)
- Zhengchao Lv
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, China
- Department of AIDS Clinical Treatment, Yunnan Provincial Hospital for Infectious Diseases, Kunming, China
| | - Songqin Lv
- Medical Laboratory, The Third People’s Hospital of Kunming, Kunming, China
| | - Qin Li
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Yafei Xia
- Infectious Disease Department, The First People’s Hospital of Xuan Wei, Qujing, China
| | - Zaineng Feng
- Infectious Disease Department, Malipo Country People’s Hospital, Wenshan, China
| | - Haohong Zhang
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Haihao Yang
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Zhao Wu
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Nanting Zou
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Qingyan Mo
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Qianlan Gu
- Pharmacy Department, Zhengxiong Country Hospital of Traditional Medicine, Zhaotong, China
| | - Sai Ying
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Xicheng Wang
- Department of AIDS Clinical Treatment, Yunnan Provincial Hospital for Infectious Diseases, Kunming, China
| | - Dongdong Qin
- Key Laboratory of Traditional Chinese Medicine for Prevention and Treatment of Neuropsychiatric Diseases, Yunnan University of Chinese Medicine, Kunming, China
| | - Chunping Wan
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, China
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Yang H, Yin N, Gu Q, Wu Z, Xu Y, Gao J, Qin D, Wan C. Astragaloside IV reduces lung injury in lethal sepsis via promoting treg cells expansion and inhibiting inflammatory responses. Pak J Pharm Sci 2023; 36:1709-1718. [PMID: 38124410] [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] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Sepsis is a systemic inflammatory response syndrome caused by an infection progressing to sepsis-associated organ failure (such as lung injury). Our previous review revealed that Astragaloside IV (ASI-IV), one of the primary bioactive ingredients in Astragalus membranaceus (Fisch) Bge (Huang-Qi), had been shown to exert anti-inflammatory and immunomodulatory effects. Nevertheless, it is still unclear whether ASI-IV could attenuate septic lung injury via activating regulatory T-cells (Tregs). This study was designed to evaluate the therapeutic potential of ASI-IV on sepsis-induced lung injury and to further explore its underlying mechanism. In the murine models of cecal ligation and puncture (CLP) and lipopolysaccharide (LPS) induced sepsis, ASI-IV can markedly improve the survival rate and reduce inflammatory lung injury, protect mice against exacerbated inflammatory responses by decreasing myeloid cell infiltration and down-regulating IL-6 and TNF-α in lung tissue. Meanwhile, Treg cell-related gene expression, including Foxp3 and IL-10, significantly increased after ASI-IV treatment. Furthermore, ASI-IV notably promoted the differentiation of naïve CD4+ T cells into T regulatory cells without obviously affecting Th1 and Th17 differentiation. Our results indicated that ASI-IV could attenuate septic lung injury by promoting Treg cell expansion and inhibiting inflammatory responses. It represents a promising agent for the treatment of sepsis.
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Affiliation(s)
- Haihao Yang
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, PR China
| | - Na Yin
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, PR China
| | - Qianlan Gu
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, PR China
| | - Zhao Wu
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, PR China
| | - Ying Xu
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, PR China
| | - Jie Gao
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, PR China
| | - Dongdong Qin
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, PR China
| | - Chunping Wan
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, PR China
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Wan C, Ma Q, Anderson S, Zhang QH, Zhang CF, Wang AH, Bell E, Hou L, Yuan CS, Wang CZ. Effects of Curcuminoids and Surfactant-Formulated Curcumin on Chemo-Resistant Colorectal Cancer. Am J Chin Med 2023; 51:1577-1594. [PMID: 37465963 DOI: 10.1142/s0192415x23500714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Colorectal cancer (CRC) is a leading cause of cancer-related death in the United States, and chronic gut inflammation is a risk factor for CRC initiation and development. Curcuma longa L., or turmeric, has become one of the most studied herbal medicines in recent years due to its anticancer potentials. It is generally accepted that the major component in turmeric is curcuminoids, and the active constituent in curcuminoids is curcumin. However, unprocessed curcumin is characterized by poor water solubility, which means low bioavailability in humans. To increase the bioavailability of curcumin, in this study, we utilized a novel surfactant-formulated curcumin (CuminUP60[Formula: see text]) and evaluated its CRC chemopreventive activities. Compared with the chemo-sensitive CRC cell line HCT-116, the management of the CRC SW-480 cell line is a challenge, since the latter is chemo-resistant. In other words, these cancer cells resist the effects of the chemotherapy. Using the newly formulated CuminUP60[Formula: see text] water solution, this study demonstrated its strong antiproliferative effects on the SW-480 cells in a dose- and time-dependent manner. This new formulation induced early apoptosis and arrested the cell cycle in the G2/M phase via the upregulation of cyclin B1. We also observed that this new formulation possessed inhibitory effects on Th17 cell differentiation, which regulates the body's immune response against gut malignancies. In summary, our results exhibited a potential clinical utility of the surfactant-formulated curcumin in chemo-resistant colorectal cancer management.
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Affiliation(s)
- Chunping Wan
- Central Laboratory, No. 1, Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming 650021, P. R. China
- Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL 60637, USA
| | - Qinge Ma
- Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL 60637, USA
- Key Laboratory of Modern Preparation of TCM of Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, P. R. China
| | - Samantha Anderson
- Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL 60637, USA
| | - Qi-Hui Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P. R. China
| | - Chun-Feng Zhang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 210009, P. R. China
| | - Angela H Wang
- Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL 60637, USA
| | - Emma Bell
- Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL 60637, USA
| | - Lifei Hou
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Chun-Su Yuan
- Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL 60637, USA
| | - Chong-Zhi Wang
- Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL 60637, USA
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Liu Y, Wu Z, Li M, Gao H, Wan C, Mao Z. Anticancer evaluation of benzofuran derivatives linked to dipiperazine moiety. Bioorg Med Chem Lett 2023; 91:129378. [PMID: 37330115 DOI: 10.1016/j.bmcl.2023.129378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/08/2023] [Accepted: 06/11/2023] [Indexed: 06/19/2023]
Abstract
In this work, a series of novel benzofuran derivatives linked to dipiperazine moiety have been prepared, and in vitro anticancer activity against Hela and A549 was investigated. The results demonstrated that benzofuran derivatives exerted potent antitumor effect. Especially, compounds 8c and 8d showed better antitumor activity against A549 (IC50 = 0.12 μM and 0.43 μM). Further mechanism study indicated that compound 8d could significantly induce cell apoptosis in A549 by FACs analysis.
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Affiliation(s)
- Yixin Liu
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, PR China
| | - Zhao Wu
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, PR China
| | - Minxin Li
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, PR China
| | - Hui Gao
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, PR China
| | - Chunping Wan
- Central Laboratory, The NO.1 Affiliated Hospital of Yunnan University of Chinese Medicine, Kunming 650021, PR China.
| | - Zewei Mao
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, PR China.
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Liu Y, Zou N, Li M, Wan C, Mao Z. Synthesis and Cytotoxic Activity of Quinazoline-Benzofuran Conjugates. Curr Org Synth 2023:COS-EPUB-132648. [PMID: 37357511 DOI: 10.2174/1570179420666230623113535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/19/2023] [Accepted: 05/31/2023] [Indexed: 06/27/2023]
Abstract
AIMS In order to study on structure-activity relationships of benzofurans. BACKGROUND Benzofuran is a kind of natural compound widely existing in nature with pharmacological effects. The development of new anticancer benzofuran derivatives has attracted more and more attention. METHOD We have introduced an active quinazoline unit into piperazine-substituted benzofuran, prepared a series of quinazoline-benzofuran compounds, and evaluated cytotoxic activity against a panel of human tumor cell lines by MTT assay. RESULT 48 novel quinazoline-substituted benzofuran derivatives have been prepared, and in vitro, cytotoxic activity against five human tumor cell lines was evaluated. The results indicated that some quinazoline-benzofuran conjugates showed selective inhibitory activity against tumor cell lines. CONCLUSION We have found that compound 14x displayed excellent cytotoxic activity, which could be considered a potential anticancer agent.
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Affiliation(s)
- Yixin Liu
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, P.R. China
| | - Nanting Zou
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, P.R. China
| | - Minxin Li
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, P.R. China
| | - Chunping Wan
- Central laboratory, The NO.1 Affiliated Hospital of Yunnan University of Chinese Medicine, Kunming 650021, P.R. China
| | - Zewei Mao
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, P.R. China
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8
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Zhang QY, Jin B, Feng Y, Qian K, Wang H, Wan C, Xu PF, Zhang M, Jiang CM. [Etiological diagnostic value of metagenomic next-generation sequencing in peritoneal dialysis-related peritonitis]. Zhonghua Gan Zang Bing Za Zhi 2023; 39:8-12. [PMID: 36776009 DOI: 10.3760/cma.j.cn441217-20220729-00748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Objective: To explore the etiological diagnostic value of metagenomic next-generation sequencing (mNGS) in peritoneal dialysis (PD)-related peritonitis. Methods: The study was a retrospective cohort study. The clinical data of patients with PD-related peritonitis who were treated and underwent microbial cultivation and mNGS test at the same time from June 2020 to July 2021 in the Affiliated Drum Tower Hospital, Medical School of Nanjing University were analyzed. The positive rate, detection time and consistency between mNGS test and traditional microbial culture were compared. Results: A total of 18 patients with age of (50.4±15.4) years old and median dialysis time of 34.0 (12.4, 62.0) months were enrolled in the study, including 11 males and 7 females. Pathogenic microorganisms were isolated in 17 patients by mNGS test, with a positive rate of 17/18, which was higher than 13/18 of microbial culture, but the difference was not statistically significant (P=0.219). Both mNGS test and microbial culture isolated positive pathogenic bacteria in 12 patients, and mNGS test isolated the same types of pathogenic bacteria as microbial cultivation did in 11 patients. In five patients with negative microbial culture, mNGS test also isolated pathogenic microorganisms, including 3 cases of Staphylococcus epidermidis, 1 case of Mycobacterium tuberculosis and 1 case of Ureaplasma urealyticum. In 1 patient, microbial culture isolated pathogenic bacteria (Escherichia coli) whereas mNGS test did not. The detection time of mNGS was 25.0 (24.0, 27.0) h, which was significantly shorter than 89.0 (72.8, 122.0) h of microbial culture (Z=3.726, P<0.001). Conclusions: mNGS test can improve the detection rate of pathogenic microorganisms in PD-related peritonitis and greatly shorten the detection time, and has good consistency with microbial culture. mNGS may provide a new approach for pathogen identification of PD-related peritonitis, especially refractory peritonitis.
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Affiliation(s)
- Q Y Zhang
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - B Jin
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - Y Feng
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - K Qian
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - H Wang
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - C Wan
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - P F Xu
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - M Zhang
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - C M Jiang
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
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Ying S, Yang H, Gu Q, Wu Z, Zou N, Wang CZ, Wan C, Yuan CS. The Small-Molecule compound baicalein alleviates experimental autoimmune encephalomyelitis by suppressing pathogenetic CXCR6 + CD4 cells. Int Immunopharmacol 2023; 114:109562. [PMID: 36508914 DOI: 10.1016/j.intimp.2022.109562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 11/26/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
CXC chemokine receptor6 (CXCR6)-based immunotherapy plays a significant role in autoimmune diseases, however, little is known about possible small compounds that inhibit pathogenic CXCR6+ T cells for treating multiple sclerosis (MS). Baicalein, a flavonoid isolated from Scutellarin baicalensis (Huang Qin), was shown to exert therapeutic effects on MS, but the underlying mechanisms are largely unknown. In the current study, we found that baicalein inhibited Th1 and Th17 differentiation in vitro. Oral administration of baicalein (25 mg/kg) significantly reduced the disease severity and the infiltration process, decreased the extent of demyelination in EAE, and selectively blocked IL-17A production and specific antibodies (IgG and IgG3) in MOG35-55-induced specific immune responses. In addition, the expression of CD4 cell effectors (CD44hiCD62Llow) and pathogenic Th17 cells was decreased by baicalein treatment. Furthermore, baicalein treatment largely decreased CXCR6+ CD4 and CD8 cells and prominently inhibited CXCR6+ Th17 cells in EAE. Taken together, the findings of this study suggest for the first time that baicalein may ameliorate EAE by suppressing pathogenetic CXCR6+ CD4 cells.
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Affiliation(s)
- Sai Ying
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650021, PR China
| | - Haihao Yang
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650021, PR China
| | - Qianlan Gu
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650021, PR China
| | - Zhao Wu
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650021, PR China
| | - Nanting Zou
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650021, PR China
| | - Chong-Zhi Wang
- Department of Anesthesia & Critical Care, and Tang Center for Herbal Medicine Research, University of Chicago, Chicago, IL 60637, USA
| | - Chunping Wan
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650021, PR China.
| | - Chun-Su Yuan
- Department of Anesthesia & Critical Care, and Tang Center for Herbal Medicine Research, University of Chicago, Chicago, IL 60637, USA
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10
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Liu B, Mao Z, Yin N, Gu Q, Gu Q, Qi Y, Li X, Yang H, Wu Z, Zou N, Ying S, Wan C. MW‑9, a chalcones derivative bearing heterocyclic moieties, attenuates experimental autoimmune encephalomyelitis via suppressing pathogenic T H17 cells. Mol Med Rep 2022; 26:308. [PMID: 35959804 PMCID: PMC9437958 DOI: 10.3892/mmr.2022.12824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/19/2022] [Indexed: 11/06/2022] Open
Abstract
Previous studies have indicated that MW-9, a chalcones derivative bearing heterocyclic moieties, has considerable anti-inflammatory activity in vitro. Whether MW-9 may be used to treat inflammation-based diseases, such as multiple sclerosis, remains unknown. The present study was designed to determine the effect and underlying mechanism of MW-9 in experimental autoimmune encephalomyelitis (EAE). Female C57BL/6 mice immunized with MOG35-55 were treated with or without MW-9, then the clinical scores and other relevant parameters were investigated. Production of cytokines and specific antibodies were monitored by ELISA assays. Surface marker, Treg cell, and intracellular cytokines (IL-17A and IFN-γ) were detected by flow cytometry, and mRNA expression in the helper-T (TH)17 cell-related signaling pathway was examined by reverse transcription-quantitative (RT-q) PCR analysis. TH17 cell differentiation assay was performed. Herein, the present results demonstrated that oral administration of MW-9 reduced the severity of disease in EAE mice through slowing down infiltration process, inhibiting the demyelination, blocking anti-MOG35-55 IgG antibody production (IgG, IgG2a and IgG3), and decreasing accumulation of CD11b+Gr-1+ neutrophils from EAE mice. MW-9 treatments also led to significantly decreased IL-17A production and IL-17 expression in CD4+ T-cells, but had no detectable influence on development of TH1 and T-regulatory cells ex vivo. RT-qPCR analysis showed that within the spinal cords of the mice, MW-9 blocked transcriptional expression of TH17-associated genes, including Il17a, Il17f, Il6 and Ccr6. In TH17 cell differentiation assay, MW-9 inhibited differentiation of ‘naïve’ CD4+ T-cells into TH17 cells and reduced the IL-17A production. The data demonstrated that MW-9 could attenuate EAE in part through suppressing the formation and activities of pathogenic TH17 cells.
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Affiliation(s)
- Bei Liu
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan 650021, P.R. China
| | - Zewei Mao
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan 650021, P.R. China
| | - Na Yin
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan 650021, P.R. China
| | - Qianlan Gu
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan 650021, P.R. China
| | - Qianlan Gu
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan 650021, P.R. China
| | - Yan Qi
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan 650021, P.R. China
| | - Xiaosi Li
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan 650021, P.R. China
| | - Haihao Yang
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan 650021, P.R. China
| | - Zhao Wu
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan 650021, P.R. China
| | - Nanting Zou
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan 650021, P.R. China
| | - Sai Ying
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan 650021, P.R. China
| | - Chunping Wan
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan 650021, P.R. China
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11
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Yin N, Li X, Liu W, Qi Y, Wu R, Li Z, Ying S, Yang H, Gu Q, Wu Z, Zou N, Duan W, Peng J, Wan C. Jian Pi Shen Shi formula alleviates hyperuricemia and related renal fibrosis in uricase-deficient rats via suppression of the collagen-binding pathway. Int J Rheum Dis 2022; 25:1395-1407. [PMID: 36082436 DOI: 10.1111/1756-185x.14434] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/17/2022] [Accepted: 08/17/2022] [Indexed: 11/30/2022]
Abstract
AIM Jian Pi Shen Shi Formula (JPSSF) is a beneficial treatment for hyperuricemia and related tissue damage in the clinical setting. This study was designed to investigate its therapeutic potential and underlying mechanisms in uricase-deficient rats (Uox-/- rats). METHODS Uox-/- rats were used to assess the therapeutic potential of JPSSF on hyperuricemia. Protein extracts from renal tissues of a Uox-/- group and a JPSSF group were analyzed using tandem mass tag labeling quantitative proteomic workflow. Collagen deposition in Uox-/- rat kidneys was analyzed by Masson trichromatic staining. The gene expression associated with collagen-binding-related signaling pathways in the kidneys was further explored using quantitative polymerase chain reaction assay. The protein expressions of collagen 1a1 (col1a1), col6a1, and α-smooth muscle actin were measured by Western blotting and immunohistochemistry. RESULTS JPSSF significantly decreased renal function indices and alleviated renal injuries. The action of JPSSF was manifested by down-regulation of col6a1 and interleukin-1 receptor-associated kinase-like 2, which blocked the binding sites on collagen and further prevented kidney injury. The anti-renal fibrosis effect of JPSSF was confirmed by reducing the collagen deposition and hydroxyproline concentrations. JPSSF treatment also intensely down-regulated the mRNA and protein expressions of col6a1, col1a1, and α-smooth muscle actin, which inhibited the function of the collagen-binding-related signaling pathway. CONCLUSION Our results indicated that JPSSF notably ameliorated hyperuricemia and related renal fibrosis in Uox-/- rats through lowering uric acid and down-regulating the function of the collagen-binding pathway. This suggested that JPSSF is a potential empirical formula for treating hyperuricemia and accompanying renal fibrosis.
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Affiliation(s)
- Na Yin
- School of Clinical Medicine and School of Pharmacy, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Xiaosi Li
- School of Clinical Medicine and School of Pharmacy, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Weichao Liu
- School of Clinical Medicine and School of Pharmacy, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Yan Qi
- School of Clinical Medicine and School of Pharmacy, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Runfang Wu
- School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Zhaofu Li
- School of Clinical Medicine and School of Pharmacy, Yunnan University of Traditional Chinese Medicine, Kunming, China.,School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Sai Ying
- School of Clinical Medicine and School of Pharmacy, Yunnan University of Traditional Chinese Medicine, Kunming, China.,School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Haihao Yang
- School of Clinical Medicine and School of Pharmacy, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Qianlan Gu
- School of Clinical Medicine and School of Pharmacy, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Zhao Wu
- School of Clinical Medicine and School of Pharmacy, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Nanting Zou
- School of Clinical Medicine and School of Pharmacy, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Weigang Duan
- School of Clinical Medicine and School of Pharmacy, Yunnan University of Traditional Chinese Medicine, Kunming, China.,School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Jiangyun Peng
- School of Clinical Medicine and School of Pharmacy, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Chunping Wan
- School of Clinical Medicine and School of Pharmacy, Yunnan University of Traditional Chinese Medicine, Kunming, China
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12
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Zhao T, Wang B, Shen J, Wei Y, Zhu Y, Tian X, Wen G, Xu B, Fu C, Xie Z, Xi Y, Li Z, Peng J, Wu Y, Tang X, Wan C, Pan L, Zhu W, Li Z, Qin D. Third dose of anti-SARS-CoV-2 inactivated vaccine for patients with RA: Focusing on immunogenicity and effects of RA drugs. Front Med (Lausanne) 2022; 9:978272. [PMID: 36117981 PMCID: PMC9470915 DOI: 10.3389/fmed.2022.978272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 08/15/2022] [Indexed: 11/23/2022] Open
Abstract
Objectives To evaluate the immunogenicity of the third dose of inactivated SARS-CoV-2 vaccine in rheumatoid arthritis (RA) patients and explore the effect of RA drugs on vaccine immunogenicity. Methods We recruited RA patients (n = 222) and healthy controls (HC, n = 177) who had been injected with a third dose of inactivated SARS-CoV-2 vaccine, and their neutralizing antibody (NAb) titer levels were assessed. Results RA patients and HC were age- and gender-matched, and the mean interval between 3rd vaccination and sampling was comparable. The NAb titers were significantly lower in RA patients after the third immunization compared with HC. The positive rate of NAb in HC group was 90.4%, while that in RA patients was 80.18%, and the difference was significant. Furthermore, comparison of NAb titers between RA treatment subgroups and HC showed that the patients in the conventional synthetic (cs) disease-modifying anti-rheumatic drugs (DMARDs) group exhibited no significant change in NAb titers, while in those receiving the treatment of biological DMARDs (bDMARDs), Janus Kinase (JAK) inhibitors, and prednisone, the NAb titers were significantly lower. Spearman correlation analysis revealed that NAb responses to SARS-CoV-2 in HC did differ significantly according to the interval between 3rd vaccination and sampling, but this finding was not observed in RA patients. In addition, NAb titers were not significantly correlated with RA-related laboratory indicators, including RF-IgA, RF-IgG, RF-IgM, anti-CCP antibody; C-RP; ESR; NEUT% and LYMPH%. Conclusion Serum antibody responses to the third dose of vaccine in RA patients were weaker than HC. Our study will help to evaluate the efficacy and safety of booster vaccination in RA patients and provide further guidance for adjusting vaccination strategies.
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Affiliation(s)
- Ting Zhao
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Bo Wang
- The Department of Educational Administration, Yunnan University of Chinese Medicine, Kunming, China
| | - Jiayan Shen
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Yuanyuan Wei
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Youyang Zhu
- The Third Affiliated Hospital, Yunnan University of Chinese Medicine, Kunming, China
| | - Xiaofang Tian
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Guangfen Wen
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Bonan Xu
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Chenyang Fu
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Zhaohu Xie
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Yujiang Xi
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Zhenmin Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Jiangyun Peng
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Yang Wu
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Xiaohu Tang
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Chunping Wan
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Lei Pan
- The Second School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Wenxin Zhu
- Department of Rehabilitation, The People's Hospital of Yunxian, Yunxian, China
- Wenxin Zhu
| | - Zhaofu Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
- Zhaofu Li
| | - Dongdong Qin
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
- *Correspondence: Dongdong Qin
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13
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Zhao T, Shen J, Zhu Y, Tian X, Wen G, Wei Y, Xu B, Fu C, Xie Z, Xi Y, Li Z, Peng J, Wu Y, Tang X, Wan C, Pan L, Li Z, Qin D. Immunogenicity of Inactivated SARS-CoV-2 Vaccines in Patients With Rheumatoid Arthritis: A Case Series. Front Public Health 2022; 10:875558. [PMID: 35548080 PMCID: PMC9081335 DOI: 10.3389/fpubh.2022.875558] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 03/28/2022] [Indexed: 02/05/2023] Open
Abstract
Objectives Attenuated humoral response to mRNA SARS-CoV-2 vaccines has been reported in some patients with autoimmune disease, e.g., rheumatoid arthritis (RA). However, data of immune responses to inactivated SARS-CoV-2 vaccine in the RA population are still unknown. Herein, the safety and immunogenicity of inactivated SARS-CoV-2 vaccines in RA patients were analyzed. Methods Seventy five RA patients and 26 healthy controls (HC) were respectively recruited from Yunnan Provincial Hospital of Traditional Chinese Medicine and the community in Kunming city. Neutralizing Antibody (NAb) Test ELISA kit was used to measure the percentage of inhibition. AKA (anti-keratin antibody) positivity was detected using indirect immunofluorescence. Rheumatoid factor (RF)-IgA was detected by ELISA. RF-IgG, RF-IgM, and anti-cyclic citrullinated peptide (CCP) antibodies were measured by chemiluminescence. ESR (erythrocyte sedimentation rate) was detected by ESR analyzer. C-RP (c-reactive protein) was detected by immunoturbidimetry. NEUT% (percentage of neutrophils) and LYMPH% (percentage of percentage) were calculated by a calculation method. Results Compared with the HC group, the percentage of inhibition was significantly lower in RA patients receiving two doses of vaccines. Vaccines-induced percentage of inhibition was the lowest in RA patients who had not been vaccinated. In total 80.77% of the HC group had a percentage of inhibition ≧20%, compared with 45.24% of vaccinated RA patients and 6.06% of unvaccinated RA patients. Spearman correlation analysis revealed that antibody responses to SARS-CoV-2 did not differ between RA patients according to their age and disease duration. Furthermore, the results showed that no correlation was found between the percentage of inhibition and indices for RA, including RF-IgA, IgG, IgM; anti-CCP antibody; ESR; C-RP; NEUT% and LYMPH%. Conclusion Our study showed inactivated vaccine-induced SARS-COV-2 antibody responses differ in RA patients and healthy subjects, emphasizing the importance of a third or fourth vaccination in RA patients.
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Affiliation(s)
- Ting Zhao
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Jiayan Shen
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Youyang Zhu
- The Third Affiliated Hospital, Yunnan University of Chinese Medicine, Kunming, China
| | - Xiaofang Tian
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Guangfen Wen
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Yuanyuan Wei
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Bonan Xu
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Chenyang Fu
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Zhaohu Xie
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Yujiang Xi
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Zhenmin Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Jiangyun Peng
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Yang Wu
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Xiaohu Tang
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Chunping Wan
- The First School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Lei Pan
- The Second School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, China
- Lei Pan
| | - Zhaofu Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
- Zhaofu Li
| | - Dongdong Qin
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
- *Correspondence: Dongdong Qin
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14
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Zheng X, Qin Z, Kang J, Wan C, Li G, Wang X. An Active Compound From Pseudomonas aeruginosa B27. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221086897] [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: 11/15/2022] Open
Abstract
A compound was isolated from the fermented broth of Pseudomonas aeruginosa. The compound was determined as acridine-4-carboxylic acid based on nuclear magnetic resonance, mass spectrometry (MS), and single-crystal x-ray diffraction analysis. Acridine-4-carboxylic acid showed significant antibacterial activities against Staphylococcus aureus, Bacillus cereus, Bacillus subtilis, Bacillus megaterium, and Shinella sp. Moreover, the compound showed certain antitumor activities against HCT116, ST486, HCC1806, and A549 with IC50values of 38.38, 6.59, 20.69, and 82.81 μg/mL, respectively. In the test of nematicidal activity, acridine-4-carboxylic acid showed certain nematicidal activity against Caenorhabditis elegans and Meloidogyne incognita. In addition, the compound also exhibited 1,1-diphenyl-2-picrylhydrazyl free radical scavenging activity. Therefore, this compound may be used as a potential antibacterial, antitumor, nematicidal, and antioxidative agent.
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Affiliation(s)
- Xi Zheng
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, China
- The Central Laboratory, First Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Zixian Qin
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, China
| | - Jialei Kang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, China
| | - Chunping Wan
- The Central Laboratory, First Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Guohong Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, China
| | - Xin Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, China
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15
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Wong JSC, Wong TS, Chua GT, Wan C, Lau SH, Ho SCS, Rosa Duque JS, Wong ICK, To KKW, Tso WWY, Wong CS, Ho MHK, Kwok J, Chow CB, Tam PKH, Chan GCF, Leung WH, Lau YL, Ip P, Kwan MYW. COVID toe in an adolescent boy: a case report. Hong Kong Med J 2022; 28:175-177. [PMID: 35307653 DOI: 10.12809/hkmj219690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- J S C Wong
- Department of Paediatrics and Adolescent Medicine, Princess Margaret Hospital, Hong Kong
| | - T S Wong
- Department of Paediatrics and Adolescent Medicine, Princess Margaret Hospital, Hong Kong
| | - G T Chua
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - C Wan
- Department of Paediatrics and Adolescent Medicine, Princess Margaret Hospital, Hong Kong
| | - S H Lau
- Department of Paediatrics and Adolescent Medicine, Princess Margaret Hospital, Hong Kong
| | - S C S Ho
- Department of Paediatrics and Adolescent Medicine, Princess Margaret Hospital, Hong Kong
| | - J S Rosa Duque
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - I C K Wong
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong.,Research Department of Practice and Policy, UCL School of Pharmacy, University College London, United Kingdom
| | - K K W To
- Department of Microbiology, Carol Yu Centre for Infection, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - W W Y Tso
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - C S Wong
- Dermatology Division, Department of Medicine, Queen Mary Hospital, Hong Kong
| | - M H K Ho
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - J Kwok
- Division of Transplantation and Immunogenetics, Department of Pathology, Queen Mary Hospital, Hong Kong
| | - C B Chow
- Department of Paediatrics and Adolescent Medicine, Princess Margaret Hospital, Hong Kong
| | - P K H Tam
- Division of Paediatric Surgery, Department of Surgery, The University of Hong Kong, Hong Kong.,Dr Li Dak-Sum Research Centre, The University of Hong Kong-Karolinska Institutet Collaboration in Regenerative Medicine, The University of Hong Kong, Hong Kong
| | - G C F Chan
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - W H Leung
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Y L Lau
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - P Ip
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - M Y W Kwan
- Department of Paediatrics and Adolescent Medicine, Princess Margaret Hospital, Hong Kong
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16
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Gao HY, Wan C, Sun FD, Wang SY, Chu L, Yuan Y, Wang P, Yu XQ, Liu WY, Dong HF, Yang XD. [Effect of Echinococcus granulosus hydatid cyst fluid protein on allergic rhinitis induced by ovalbumin in mice]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2022; 34:158-162. [PMID: 35537837 DOI: 10.16250/j.32.1374.2021276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To investigate the protective effect of Echinococcus granulosus hydatid cyst fluid protein (HCFP) on ovalbumin (OVA)-induced allergic rhinitis (AR) in mice. METHODS Twenty-four BALB/c mice at ages of 8 to 10 weeks, each weighing approximately 20 g, were randomly divided into four groups, including groups A (blank control group), B (blank intervention group), C (AR model group) and D (AR+HCFP intervention group), with 6 mice in each group. On days 0, 2, 4, 6, 8, 10 and 12, mice in groups A, B, C and D were injected with 200 μL sterile phosphate buffered saline (PBS), 200 μL sterile PBS containing 20 μg HCFP, 200 μL sterile PBS containing 50 μg OVA and 5 mg Al(OH)3 gel, and 200 μL sterile PBS containing 50 μg OVA, 5 mg Al(OH)3 gel and 20 μg HCFP, respectively. On days 14 to 20, mice in groups A, B, C and D were administered with 40 μL sterile PBS, 40 μL sterile PBS containing 20 μg HCFP, 40 μL sterile PBS containing 2 mg OVA and 40 μL sterile PBS containing 2 mg OVA and 20 μL HCFP by nasal drop, respectively. Mouse behavioral changes were observed and behavioral scores were estimated. The serum levels of interferon-γ (IFN-γ), interleukin-4 (IL-4), IL-5, IL-10, transforming growth factor-β (TGF-β) and OVA-specific IgE antibody (OVA-sIgE) were measured using enzyme-linked immunosorbent assay (ELISA), and the pathological changes of mouse nasal mucosa were observed by hematoxylin and eosin (HE) staining. RESULTS The mean behavioral score was significantly greater in Group C (6.83 ± 0.50) than in groups A (1.17 ± 0.52) and B (1.33 ± 0.52) (P < 0.05), while a lower mean behavioral score was estimated in Group D (3.50 ± 0.50) than in Group C (P < 0.05). There were significant differences among the groups in terms of serum IFN-γ (F = 4.08, P < 0.05), IL-4 (F = 275.90, P < 0.05), IL-5 (F = 96.82, P < 0.05), IL-10 (F = 77.67, P < 0.05), TGF-β (F = 9.98, P < 0.05) and OVA-sIgE levels (F = 44.69, P < 0.05). The serum IFN-γ level was significantly lower in Group C than in groups A, B and C (P < 0.05), and the serum levels of IL-4, IL-5 and OVA-sIgE were significantly higher in Group C than in groups A, B and C (P < 0.05), while the serum IL-10 and TGF-β levels were significantly greater in Group D than in Group C (P < 0.05). Microscopy showed apparent loss of nasal mucosa cilia, increased number and enlargement of goblet cells, interstitial edema and submucous vascular dilation in Group C, while the pathological changes of nasal mucosa were alleviated in Group D relative to Group C. CONCLUSIONS E. granulosus HCFP has a protective activity against OVA-induced allergic rhinitis in mice.
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Affiliation(s)
- H Y Gao
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, Anhui 233000, China
- Department of Pediatrics, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, China
- Co-first authors
| | - C Wan
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, Anhui 233000, China
- Department of Microbiology and Parasitology, Bengbu Medical College, Bengbu, Anhui 233000, China
- Co-first authors
| | - F D Sun
- Department of General Surgery, The Second Affiliated Hospital of Bengbu Medical College, China
| | - S Y Wang
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, Anhui 233000, China
- Department of Pediatrics, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, China
| | - L Chu
- Department of General Surgery, The Second Affiliated Hospital of Bengbu Medical College, China
| | - Y Yuan
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, Anhui 233000, China
- Department of Basic Medical Sciences, Bengbu Medical College, China
| | - P Wang
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, Anhui 233000, China
| | - X Q Yu
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, Anhui 233000, China
| | - W Y Liu
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, Anhui 233000, China
| | - H F Dong
- Department of Pediatrics, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233000, China
| | - X D Yang
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, Anhui 233000, China
- Department of Microbiology and Parasitology, Bengbu Medical College, Bengbu, Anhui 233000, China
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Wang CZ, Wan C, Luo Y, Zhang CF, Zhang QH, Chen L, Liu Z, Wang DH, Lager M, Li CH, Jiang TL, Hou L, Yuan CS. Effects of dihydroartemisinin, a metabolite of artemisinin, on colon cancer chemoprevention and adaptive immune regulation. Mol Biol Rep 2022; 49:2695-2709. [PMID: 35040004 DOI: 10.1007/s11033-021-07079-1] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 12/09/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Artemisinin (ART) is an anti-malaria natural compound with a moderate anticancer action. As a metabolite of ART, dihydroartemisinin (DHA) may have stronger anti-colorectal cancer (CRC) bioactivities. However, the effects of DHA and ART on CRC chemoprevention, including adaptive immune regulation, have not been systematically evaluated and compared. METHODS Coupled with a newly-established HPLC analytical method, enteric microbiome biotransformation was conducted to identify if the DHA is a gut microbial metabolite of ART. The anti-CRC potential of these compounds was compared using two different human CRC cell lines for cell cycle arrest, apoptotic induction, and anti-inflammation activities. Naive CD4+ T cells were also obtained for testing the compounds on the differentiation of Treg, Th1 and Th17. RESULTS Using compound extraction and analytical methods, we observed for the first time that ART completely converted into its metabolites by gut microbiome within 24 h, but no DHA was detected. Although ART did not obviously influence cancer cell growth in the concentration tested, DHA very significantly inhibited the cancer cell growth at relatively low concentrations. DHA included G2/M cell cycle arrest via upregulation of cyclin A and apoptosis. Both ART and DHA downregulated the pro-inflammatory cytokine expression. The DHA significantly promoted Treg cell proliferation, while both ART and DHA inhibited Th1 and Th17 cell differentiation. CONCLUSIONS As a metabolite of ART, DHA possessed stronger anti-CRC activities. The DHA significantly inhibited cell growth via cell cycle arrest, apoptosis induction and anti-inflammation actions. The adaptive immune regulation is a related mechanism of actions for the observed effects.
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Affiliation(s)
- Chong-Zhi Wang
- Central Laboratory, The No. 1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming, 650021, China.
- Tang Center for Herbal Medicine Research, and Department of Anesthesia and Critical Care, University of Chicago, 5841 South Maryland Avenue, MC 4028, Chicago, IL, 60637, USA.
| | - Chunping Wan
- Central Laboratory, The No. 1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming, 650021, China
- Tang Center for Herbal Medicine Research, and Department of Anesthesia and Critical Care, University of Chicago, 5841 South Maryland Avenue, MC 4028, Chicago, IL, 60637, USA
| | - Yun Luo
- Tang Center for Herbal Medicine Research, and Department of Anesthesia and Critical Care, University of Chicago, 5841 South Maryland Avenue, MC 4028, Chicago, IL, 60637, USA
| | - Chun-Feng Zhang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, Jiangsu, China
| | - Qi-Hui Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Lina Chen
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Zhi Liu
- Tang Center for Herbal Medicine Research, and Department of Anesthesia and Critical Care, University of Chicago, 5841 South Maryland Avenue, MC 4028, Chicago, IL, 60637, USA
| | - Daniel H Wang
- Tang Center for Herbal Medicine Research, and Department of Anesthesia and Critical Care, University of Chicago, 5841 South Maryland Avenue, MC 4028, Chicago, IL, 60637, USA
| | - Mallory Lager
- Tang Center for Herbal Medicine Research, and Department of Anesthesia and Critical Care, University of Chicago, 5841 South Maryland Avenue, MC 4028, Chicago, IL, 60637, USA
| | - Cang-Hai Li
- Tang Center for Traditional Chinese Medicine Research, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Ting-Liang Jiang
- Tang Center for Traditional Chinese Medicine Research, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Lifei Hou
- Program in Cellular and Molecular Medicine, Boston Children's Hospital and Department of Pediatrics, Harvard Medical School, Boston, MA, 02115, USA
| | - Chun-Su Yuan
- Tang Center for Herbal Medicine Research, and Department of Anesthesia and Critical Care, University of Chicago, 5841 South Maryland Avenue, MC 4028, Chicago, IL, 60637, USA
- Committee on Clinical Pharmacology and Pharmacogenomics, University of Chicago, Chicago, IL, 60637, USA
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Wang T, Wan C, Zhao L, Fang X, Xiao S, Fu Y. P68.03 An AI Workflow to Detect and Report Tumor Cell Proportion of H&E-Stained Tissue Samples. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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19
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Wang CZ, Wan C, Luo Y, Zhang CF, Zhang QH, Chen L, Park CW, Kim SH, Liu Z, Lager M, Xu M, Hou L, Yuan CS. Ginseng berry concentrate prevents colon cancer via cell cycle, apoptosis regulation, and inflammation-linked Th17 cell differentiation. J Physiol Pharmacol 2021; 72. [PMID: 34374659 DOI: 10.26402/jpp.2021.2.08] [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] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 04/30/2021] [Indexed: 01/05/2023]
Abstract
The Asian ginseng root (Panax ginseng C.A. Meyer) is a very commonly used herbal medicine worldwide. Ginseng fruit, including the berry (or pulp) and seed, is also valuable for several health conditions including immunostimulation and cancer chemoprevention. In this study, the anticancer and anti-proliferative effects of the extracts of ginseng berry and seed were evaluated. The ginsenosides in the ginseng berry concentrate (GBC) and ginseng seed extract (GSE) were analyzed. We then evaluated their anti-colorectal cancer potentials, including antiproliferation, cell cycle arrest, and apoptotic induction. Further investigation consisted of the berry's adaptive immune responses, such as the actions on the differentiation of T helper cells Treg, Th1, and Th17. The major constituents in GBC were ginsenosides Re and Rd, which can be compared to those in the root. The GBC significantly inhibited colon cancer cell growth, and its anti-proliferative effect involved mechanisms including G2/M cell cycle arrest via upregulation of cyclin A and induction of apoptosis via regulation of apoptotic related gene expressions. GBC also downregulated the expressions of pro-inflammatory cytokine genes. For the adaptive immune responses, GBC did not influence Th1 and Treg cell differentiation but significantly inhibited Th17 cell differentiation and thus regulated the balance of Th17/Treg for adaptive immunity. Although no ginsenoside was detected in the GSE, interestingly, it obviously enhanced colon cancer cell proliferation with the underlined details to be determined. Our results suggested that GBC is a promising dietary supplement for cancer chemoprevention and immunomodulation.
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Affiliation(s)
- C-Z Wang
- Central Laboratory, No. 1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming, China.,Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL, USA
| | - C Wan
- Central Laboratory, No. 1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming, China.,Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL, USA
| | - Y Luo
- Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL, USA
| | - C-F Zhang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Q-H Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
| | - L Chen
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, China
| | - C W Park
- Health Care Research Institute Research and Development Center, AmorePacific Corporetion, Yongin, Republic of Korea
| | - S H Kim
- Health Care Research Institute Research and Development Center, AmorePacific Corporetion, Yongin, Republic of Korea
| | - Z Liu
- Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL, USA
| | - M Lager
- Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL, USA
| | - M Xu
- Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL, USA
| | - L Hou
- Program in Cellular and Molecular Medicine, Boston Children's Hospital and Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - C-S Yuan
- Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, University of Chicago, Chicago, IL, USA. .,Committee on Clinical Pharmacology and Pharmacogenomics, University of Chicago, Chicago, IL, USA
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20
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Zhang Y, Liu JY, Shao JW, Luo QQ, Zhang YQ, Song G, Wang CY, Zhao SY, Wan C, Du XH, Xu LZ. Effective Model of Food Allergy in Mice Sensitized with Ovalbumin and Freud's Adjuvant. Bull Exp Biol Med 2021; 171:352-356. [PMID: 34297293 DOI: 10.1007/s10517-021-05226-z] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Indexed: 12/29/2022]
Abstract
To better explore the pathophysiology of FA and its therapy, we aimed to establish a simple and practicable FA model with Freund's adjuvant and introduce an easy and reliable laboratory evaluation method for assessment of inflammation in intestinal segments at different anatomical locations. BALB/c mice were sensitized with ovalbumin combined with Freund's adjuvant. Complete Freund's adjuvant was chosen for the first sensitization and two weeks later incomplete Freund's adjuvant was used for a second sensitization. Two weeks later, the sensitized mice were challenged with 50 mg ovalbumin every other day. After the 6 challenge, all mice were assessed for systemic anaphylaxis, and then sacrificed for sample collection. All sensitized mice showed anaphylactic symptoms and markedly increased levels of serum ovalbumin-specific IgE and IgG1. The activity of mast cell protease-1 (mMCPT-1) was significantly increased in the serum and interstitial fluid of the duodenum, jejunum, ileum, and colon. A successful FA model was established, of which inflammation occurred in the duodenum, jejunum, ileum, and colon. This model provides a reliable and simple tool for analysis of the mechanism of FA and methods of immunotherapy. Moreover, combined detection of ovalbumin-specific antibody and local mMCPT-1 levels could potentially be used as the major indicator for assessment of food allergy.
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Affiliation(s)
- Y Zhang
- Key Lab for Immunology, Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - J Y Liu
- Key Lab for Immunology, Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - J W Shao
- Key Lab for Immunology, Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Q Q Luo
- Key Lab for Immunology, Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Y Q Zhang
- Key Lab for Immunology, Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - G Song
- Key Lab for Immunology, Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - C Y Wang
- Key Lab for Immunology, Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - S Y Zhao
- Key Lab for Immunology, Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - C Wan
- Key Lab for Immunology, Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - X H Du
- Key Lab for Immunology, Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - L Z Xu
- Key Lab for Immunology, Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China.
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Chen CH, Jiang Y, Wu R, Tang Y, Wan C, Gao H, Mao Z. Discovery of heterocyclic substituted dihydropyrazoles as potent anticancer agents. Bioorg Med Chem Lett 2021; 48:128233. [PMID: 34214509 DOI: 10.1016/j.bmcl.2021.128233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 06/25/2021] [Indexed: 10/21/2022]
Abstract
In this work, a series of novel heterocyclic substituted dihydropyrazole derivatives have been prepared, and in vitro anticancer activity against a panel of human tumor cell lines by SRB were evaluated. The results indicated that piperazine substituted dihydropyrazole derivatives exhibited superior anticancer activity than that of other compounds. Especially, compounds 4g, 4h, 4l, 4m, 4o, 6g, 6j and 6l showed potent antitumor activity. Further mechanism study demonstrated that compound 4o could induce G2/M arrest in HCC1806 cell and p21 accumulation significantly.
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Affiliation(s)
- Chuan-Huizi Chen
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, PR China
| | - Yuan Jiang
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, PR China
| | - Runfang Wu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming, 650500, PR China
| | - Yanling Tang
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, PR China
| | - Chunping Wan
- Central Laboratory, The NO.1 Affiliated Hospital of Yunnan University of Chinese Medicine, Kunming 650021, PR China.
| | - Hui Gao
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, PR China
| | - Zewei Mao
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, PR China.
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22
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Ma Y, Zheng X, Zhu P, Liu B, Gao H, Mao Z, Zhang L, Wan C. Novel Resveratrol-chalcone Derivatives: Synthesis and Biological Evaluation. Mini Rev Med Chem 2019; 19:424-436. [DOI: 10.2174/1389557518666180727165358] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 07/05/2018] [Accepted: 07/20/2018] [Indexed: 12/11/2022]
Abstract
Introduction: Resveratrol and chalcones are lead compounds with good biological activities.
</P><P>
Method: In this study, a series of novel derivatives (6-38) between resveratrol and chalcone possessing
piperazine moiety have been synthesized, and in vitro anti-inflammatory activity in lipopolysaccharide
(LPS)-stimulated RAW-264.7 macrophages and anti-proliferative effect on a panel of human tumor
cell lines (Hela, A549 and SGC7901) by MTT assay were evaluated.
</P><P>
Result: The results demonstrated that the substituents of the NH group of piperazine ring had an obvious
influence on biological activities. Especially, compounds 13, 17, 30, 31 and 36 showed good inhibitory
effect on the generation of NO compared to dexamethasone. Furthermore, analogs 20, 21, 22
and 25 were found to be the better anti-proliferative effect on 3 human tumor cell lines, which were
found to be a better cytotoxic activity to positive control 5-FU. Many compounds displayed low cytotoxic
effect on normal cells L02.
</P><P>
Conclusion: Further FACs analysis showed that compounds 20 and 25 significantly induced apoptosis in
A549 cell. These derivatives were considered as the potential anti-inflammatory and anti-tumor agents.
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Affiliation(s)
- Yulu Ma
- School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Xi Zheng
- Central Laboratory, The NO.1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming 650021, China
| | - Ping Zhu
- College of Pharmaceutical Science, Yunnan University of Traditional Chinese Medicine, Kunming 650500, China
| | - Bei Liu
- College of Pharmaceutical Science, Yunnan University of Traditional Chinese Medicine, Kunming 650500, China
| | - Hui Gao
- College of Pharmaceutical Science, Yunnan University of Traditional Chinese Medicine, Kunming 650500, China
| | - Zewei Mao
- College of Pharmaceutical Science, Yunnan University of Traditional Chinese Medicine, Kunming 650500, China
| | - Lijun Zhang
- College of Pharmaceutical Science, Yunnan University of Traditional Chinese Medicine, Kunming 650500, China
| | - Chunping Wan
- Central Laboratory, The NO.1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming 650021, China
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Li G, Chen P, Sun Q, Xiong F, Wan C, Zeng Y. Day-3 quality is not a valuable parameter for predicting pregnancy outcomes after vitrified-warmed single blastocyst transfer. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.1030] [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: 11/16/2022]
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24
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Wan C, Li J. Physiological ischemia training improves endogenous EPCs homing to infarcted heart. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.965] [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: 11/25/2022]
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25
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Wan C, Li Y. mRNA-miRNA crosstalk in basal cell carcinoma. J Eur Acad Dermatol Venereol 2018; 32:e422-e424. [PMID: 29706007 DOI: 10.1111/jdv.15011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- C Wan
- Department of Dermatology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Y Li
- Department of Dermatology, The Affiliated Qingdao Municipal Hospital of Qingdao University, Qingdao, China
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Gao H, Zheng X, Qi Y, Wang S, Wan C, Rao G, Mao Z. Synthesis and Cytotoxic Activity of Novel Resveratrol-Chalcone Amide Derivatives. CHINESE J ORG CHEM 2018. [DOI: 10.6023/cjoc201708031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Mao Z, Liu B, Zhu P, Zhang L, Zhu J, Wu L, Wan C. Synthesis and Biological Evaluation of Piperazine Substituted 3-Aryl-5-furanyldihydropyrazole Amide Derivatives. CHINESE J ORG CHEM 2018. [DOI: 10.6023/cjoc201802010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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28
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Li Y, Liu B, Zhang L, Zhu J, Wan C, Mao Z. Synthesis and Cytotoxic Activity of New 3-Aryl-5-furanyl-4, 5-dihydroisoxazoline Derivatives. CHINESE J ORG CHEM 2018. [DOI: 10.6023/cjoc201711005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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29
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Gao H, Zheng X, Zhu P, Wang S, Wan C, Rao G, Mao Z. Synthesis and Biological Evaluation of Novel Substituted Chalcone-piperazine Derivatives. CHINESE J ORG CHEM 2018. [DOI: 10.6023/cjoc201707034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Affiliation(s)
- C Wan
- School of Professional Education and Executive Development, The Hong Kong Polytechnic University, Hung Hom, Hong Kong.
| | - G Shen
- Department of Building and Real Estate, The Hong Kong Polytechnic University, Hung Hom, Hong Kong.
| | - S Choi
- School of Professional Education and Executive Development, The Hong Kong Polytechnic University, Hung Hom, Hong Kong.
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Ma J, Li Y, Wan C, Huang J, Qin Y, Wu B, Xu S, Yang K, WU G. β-Trcp-mediated Degradation of FOXN2 Promotes Cell Proliferation and Radioresistance of Lung Cancer Cells. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1812] [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]
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Abstract
Astragalus membranaceus (Fisch) Bge (Huang-Qi) is a well-known herbal medicine with tonic property and has been widely used to treat cancer and other immune disorders in China and Southeast Asia for thousands of years. Accumulating evidence suggests that Huang-Qi possesses both immune-boosting and anti-inflammatory/immune-regulatory effects clinically, leaving the mechanism elusive. Recently, we discovered that Astragaloside (ASI), a major active component of Huang-Qi, is able to increase CD45 phosphatase activity. In this paper, we reviewed the recent progress of ASIs in immunoregulatory and anti-inflammatory activities, including the induction of T-cell activation, regulation of effector/regulatory T-cell balance, enhancement of CD45 phosphatase activity, inhibition of pro-inflammatory cytokine and, NF-[Formula: see text]B pathway. Finally, we hypothesized that inducing interferon-[Formula: see text] (IFN-[Formula: see text]) activity by activating CD45 protein tyrosine phosphatase (PTPase) may be involved in the protective role of ASI in two contrary immune-associated diseases. These pharmacological properties highlight the traditional uses of Astragalus and provide a new direction for subsequent research and the clinical application of this traditional herbal.
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Affiliation(s)
- Yan Qi
- * Central Laboratory, The No.1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming 650021, P. R. China
| | - Feng Gao
- † College of Pharmacy and Shanxi Provincial Key Laboratory for Chinese Medicine Basis & New Drugs Research, Shanxi University of Chinese Medicine, Xi'an, Shaanxi 712046, P. R. China
| | - Lifei Hou
- ‡ Program in Cellular and Molecular Medicine, Boston Children's Hospital and Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Chunping Wan
- * Central Laboratory, The No.1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming 650021, P. R. China
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Yang X, Sun L, Zhao A, Hu X, Qing Y, Jiang J, Yang C, Xu T, Wang P, Liu J, Zhang J, He L, Jia W, Wan C. Serum fatty acid patterns in patients with schizophrenia: a targeted metabonomics study. Transl Psychiatry 2017; 7:e1176. [PMID: 28742081 PMCID: PMC5538128 DOI: 10.1038/tp.2017.152] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 04/25/2017] [Accepted: 06/07/2017] [Indexed: 12/21/2022] Open
Abstract
Previous studies have indicated that schizophrenia is linked to abnormal lipid metabolism. Free fatty acids (FFAs) in peripheral blood can reflect the status of lipid metabolism in human body. The purpose of this study was to scan the FFA pattern and elucidate the characteristics of lipid metabolic abnormality in schizophrenia patients. One hundred and ten patients with schizophrenia (SCZs) and 109 healthy controls (HCs) were included in the study and divided into a discovery set and a validation set. Forty-seven serum FFAs were detected by UPLC-QTOF-MS and 39 of them were absolutely quantified by establishing standard curves. Monounsaturated fatty acids (MUFAs) and ω-6 polyunsaturated fatty acids (ω-6 PUFAs) were significantly increased in SCZs compared with HCs. Desaturation from saturated fatty acids to MUFAs and β-oxidation were enhanced, as estimated by the ratios of products to precursors. These results suggest that lipolysis and β-oxidation are upregulated in SCZ, presumably resulting from insufficient brain energy supply.
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Affiliation(s)
- X Yang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Key Laboratory of Translational Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University, Shanghai, China
| | - L Sun
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Key Laboratory of Translational Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University, Shanghai, China
| | - A Zhao
- Center for Translational Medicine and Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - X Hu
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Key Laboratory of Translational Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University, Shanghai, China
| | - Y Qing
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Key Laboratory of Translational Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University, Shanghai, China
| | - J Jiang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Key Laboratory of Translational Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University, Shanghai, China
| | - C Yang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Key Laboratory of Translational Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University, Shanghai, China
| | - T Xu
- Discipline of Neuroscience, Department of Anatomy, Histology and Embryology, Collaborative Innovation Center for Brain Science, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - P Wang
- The Fourth People’s Hospital of Wuhu, Wuhu, China
| | - J Liu
- Center for Translational Medicine and Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - J Zhang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Key Laboratory of Translational Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University, Shanghai, China
| | - L He
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Key Laboratory of Translational Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University, Shanghai, China
| | - W Jia
- Center for Translational Medicine and Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China,Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China E-mail:
| | - C Wan
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Key Laboratory of Translational Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University, Shanghai, China,Collaborative Innovation Center of Genetics and Development, Shanghai, China,Bio-X Institutes, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, China. E-mail:
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Wan C, Chiu H, Hsieh H, Tsai H, Lin Y, Wang J. COST-EFFECTIVENESS OF MINI-LAPAROTOMY FOR COLORECTAL CANCERS IN ELDERLY PATIENTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- C. Wan
- Christian Changhua Hospital, Changhua, Taiwan,
| | - H. Chiu
- Christian Changhua Hospital, Changhua, Taiwan,
- Kaohsiung Medical University, Kaohsiung, Taiwan,
| | - H. Hsieh
- Kaohsiung Medical University, Kaohsiung, Taiwan,
| | - H. Tsai
- Kaohsiung Medical University Hospital, Kaohsiung, Taiwan,
| | - Y. Lin
- National Taiwan University, Taipei, Taiwan
| | - J. Wang
- Kaohsiung Medical University, Kaohsiung, Taiwan,
- Kaohsiung Medical University Hospital, Kaohsiung, Taiwan,
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Bose S, Wan C, Scala M, Morley GW, Barker PF, Kim MS. Bose et al. Reply. Phys Rev Lett 2017; 118:108902. [PMID: 28339243 DOI: 10.1103/physrevlett.118.108902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Indexed: 06/06/2023]
Affiliation(s)
- S Bose
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - C Wan
- QOLS, Blackett Laboratory, Imperial College London, London SW7 2BW, United Kingdom
| | - M Scala
- QOLS, Blackett Laboratory, Imperial College London, London SW7 2BW, United Kingdom
| | - G W Morley
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - P F Barker
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - M S Kim
- QOLS, Blackett Laboratory, Imperial College London, London SW7 2BW, United Kingdom
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Hao S, Chen S, Yang X, Wan C. Adverse impact of intermittent portal clamping on long-term postoperative outcomes in hepatocellular carcinoma. Ann R Coll Surg Engl 2017; 99:22-27. [PMID: 27269234 PMCID: PMC5392778 DOI: 10.1308/rcsann.2016.0183] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2016] [Indexed: 01/28/2023] Open
Abstract
Introduction To evaluate the impact of intermittent portal clamping (IPC) on long-term postoperative outcomes in patients with hepatocellular carcinoma (HCC). Methods Clinical records of 355 patients underwent curative liver resection for HCC in January 2007 to December 2010 were retrospectively reviewed. According to how portal clamping was performed, patients were grouped as: IPC, n=113; other portal clamping (OPC), n=190; and no portal clamping (NPC), n=52. Results Median recurrence-free survival (RFS) was statistically significantly shorter in the IPC (39.4 months) than OPC (47.3 months, p=0.010) and NPC groups (51.4 months, p=0.008). Median overall survival (OS) was also significantly shorter with IPC (46.3 months), versus 52.9 months with OPC (p=0.022) and 56.2 months with NPC (p=0.015). Kaplan-Meier survival analysis revealed that 5-year cumulative RFS was much lower in the IPC (42.5%) than OPC (50.9%, p=0.014) and NPC groups (49.6%, p=0.013). Five-year cumulative OS was also much lower in the IPC (44.9%) than OPC (58.0%, p=0.020) and NPC groups (57.7%, p=0.025). On univariate analysis, tumour grade, size and number, TNM stage, blood transfusion, vascular invasion and IPC were significantly inversely correlated with RFS and OS. On multivariate analysis, tumour size and number, blood transfusion, vascular invasion and IPC remained significant. Conclusions Our study suggests that IPC is an independent risk factor for poor long-term postoperative outcomes in patients with HCC.
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Affiliation(s)
- S Hao
- Huazhong University of Science and Technology , Wuhan , China
| | - S Chen
- Huazhong University of Science and Technology , Wuhan , China
| | - X Yang
- Central South University , Changsha , China
| | - C Wan
- Huazhong University of Science and Technology , Wuhan , China
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Lin Y, Hu C, Zheng X, Wang X, Wan C, Mao Z. Synthesis and Anti-tumor Activities of Novel 4'-(N-Substitued-1-piperazinyl) chalcone Derivatives. CHINESE J ORG CHEM 2017. [DOI: 10.6023/cjoc201605021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ma Y, Zheng X, Gao H, Wan C, Rao G, Mao Z. Design, Synthesis, and Biological Evaluation of Novel Benzofuran Derivatives Bearing N-Aryl Piperazine Moiety. Molecules 2016; 21:molecules21121684. [PMID: 27941680 PMCID: PMC6274084 DOI: 10.3390/molecules21121684] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [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: 10/06/2016] [Revised: 11/27/2016] [Accepted: 12/01/2016] [Indexed: 12/14/2022] Open
Abstract
A series of novel hybrid compounds between benzofuran and N-aryl piperazine have been synthesized and screened in vitro for anti-inflammatory activity in lipopolysaccharide (LPS)-stimulated RAW-264.7 macrophages and for anticancer activity against three human tumor cell lines. The results demonstrated that derivative 16 not only had inhibitory effect on the generation of NO (IC50 = 5.28 μM), but also showed satisfactory and selective cytotoxic activity against human lung cancer line (A549) and gastric cancer cell (SGC7901) (IC50 = 0.12 μM and 2.75 μM, respectively), which was identified as the most potent anti-inflammatory and anti-tumor agent in this study.
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Affiliation(s)
- Yulu Ma
- Key Laboratory of Medicinal Chemistry for Natural Resource Education Ministry, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China.
| | - Xi Zheng
- Central Laboratory, The No. 1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming 650021, China.
| | - Hui Gao
- School of Traditional Chinese Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650500, China.
| | - Chunping Wan
- Central Laboratory, The No. 1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine, Kunming 650021, China.
| | - Gaoxiong Rao
- School of Traditional Chinese Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650500, China.
| | - Zewei Mao
- School of Traditional Chinese Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650500, China.
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Chen L, Feng X, Wang Y, Xu X, Wan C, Wang J, Mu H. Study of the Role of Transforming Growth Factor β-1 in Organ Damage Protection in Porcine Model of Brain Death. Transplant Proc 2016; 48:205-9. [PMID: 26915869 DOI: 10.1016/j.transproceed.2016.01.007] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 01/06/2016] [Indexed: 10/22/2022]
Abstract
BACKGROUND From the medical and ethical points of view, donation after brain death is a more acceptable organ source than that from a living donor because it has the advantage of providing multiple organs from a single donor source. Hence, it has become a more promising field of research which focuses on the protection of organs at brain death Here we investigated the role of transforming growth factor (TGF)-β1 in a porcine model of brain death. METHODS A porcine model of brain death was established by increasing the intracranial pressure (ICP) after which TGF-β1 was monitored by immunofluorescence at the following time points: before ICP was performed (t1), at brain death (t2), and at 3 (t3), 6 (t4), 9 (t5), and 18 (t6) hours after brain death. The data were analyzed using the fixed effect regression method and the correlation between the results was determined by Pearson analysis. RESULTS Our results showed that there was a significant increase in the levels of TGF-β1 (P < .05), urea (P < .01), creatinine (P < .01), and aspartate aminotransferase (AST; P < .01) during the 18-hour brain death process. There were negative correlations between TGF-β1 and urea, creatinine, alanine aminotransferase, AST, and total bilirubin. The negative correlations between TGF-β1 and creatinine and AST achieved statistical significance (P < .05). CONCLUSIONS These findings taken together confirm that significant damages are caused to the myocardial fiber cell and kidney glomerulus during brain death process, and that TGF-β1 is associated with the protection of these organs.
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Affiliation(s)
- L Chen
- Department of Clinical Laboratory, The First Central Hospital of Tianjin, Tianjin, China
| | - X Feng
- Department of Neurosurgery, The First Central Hospital of Tianjin, Tianjin, China
| | - Y Wang
- Key Laboratory for Critical Care Medicine of the Ministry of Health, Tianjin, China
| | - X Xu
- Key Laboratory for Critical Care Medicine of the Ministry of Health, Tianjin, China
| | - C Wan
- Department of Neurosurgery, The First Central Hospital of Tianjin, Tianjin, China
| | - J Wang
- Department of Transplantation Surgery, The First Central Hospital of Tianjin, Tianjin, China
| | - H Mu
- Department of Clinical Laboratory, The First Central Hospital of Tianjin, Tianjin, China.
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Qi H, Wan C, Li X, Zhang L, Song Z, Fan W. Computed tomography-guided percutaneous microwave ablation treatment for lung metastases from nasopharyngeal carcinoma. Indian J Cancer 2016; 52 Suppl 2:e91-5. [PMID: 26728682 DOI: 10.4103/0019-509x.172521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND The objective of this retrospective study was to evaluate the safety and efficacy of percutaneous microwave ablation (MWA) for treating lung metastases from nasopharyngeal carcinoma (NPC). PATIENTS AND METHODS From December 2012 to November 2014, 17 patients (15 males, and two females, averaged 45.7 years old) with lung metastases from NPC accepted computed tomography (CT)-guided percutaneous MWA. The average number of lung metastases was 1.7 (range: 1-4), and the biggest tumor diameter was 4.2 cm (range: 0.8-4.2 cm). Nineteen nodules located in the right lung and 10 nodules located in the left lung. A total of 29 ablation sites were performed to 29 lung metastases in 22 MWA sessions. Postoperative assessments of complete tumor necrosis rate, safety, local tumor progression, and survival period were carried out. RESULTS Of the 29 lesions, complete response was achieved for 27 lesions; residual tumor was found in one lesion 3 months postoperatively; and another lesion was found enlarged 3-month postoperatively with obvious enhancement. Four patients had a small amount of postoperative parenchyma bleeding and two patients had a small amount of pneumothorax. Six months after MWA treatment, new metastatic lesions appeared in six patients, five patients had new metastatic lesions inside the lung, and the other patient had metastatic lesions in the thoracic vertebra. The time for the appearance of new pulmonary metastases for the five patients was 4-20 months, averaged 7.2 months. CONCLUSION CT-guided MWA is a promising treatment alternative for local tumor control in selected patients with lung metastases from NPC.
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Affiliation(s)
| | | | | | | | | | - W Fan
- Department of Image-guided Minimally Invasive Therapy, State Key Laboratory of Oncology in South , Sun Yat-Sen University Cancer Center, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
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Nocek JE, Wan C, Londergan TM. 1317 Effect of supplemental enriched palmitic acid in free fatty acid form vs. calcium salts of palm fatty acids on production performance in early postpartum cows. J Anim Sci 2016. [DOI: 10.2527/jam2016-1317] [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: 11/13/2022] Open
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Zhang H, Wan C, Yang C, Qin Y, Huang J, Yang K. Stereotactic Body Radiation Therapy Gains Radiobiological Advantages Not in Non-Small Cell Lung Cancer Cells After Radiation But in Early Passage Cells Compared to Conventional Radiation Therapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2082] [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: 12/01/2022]
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Wan C, Scala M, Morley GW, Rahman AA, Ulbricht H, Bateman J, Barker PF, Bose S, Kim MS. Free Nano-Object Ramsey Interferometry for Large Quantum Superpositions. Phys Rev Lett 2016; 117:143003. [PMID: 27740804 DOI: 10.1103/physrevlett.117.143003] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Indexed: 06/06/2023]
Abstract
We propose an interferometric scheme based on an untrapped nano-object subjected to gravity. The motion of the center of mass (c.m.) of the free object is coupled to its internal spin system magnetically, and a free flight scheme is developed based on coherent spin control. The wave packet of the test object, under a spin-dependent force, may then be delocalized to a macroscopic scale. A gravity induced dynamical phase (accrued solely on the spin state, and measured through a Ramsey scheme) is used to reveal the above spatially delocalized superposition of the spin-nano-object composite system that arises during our scheme. We find a remarkable immunity to the motional noise in the c.m. (initially in a thermal state with moderate cooling), and also a dynamical decoupling nature of the scheme itself. Together they secure a high visibility of the resulting Ramsey fringes. The mass independence of our scheme makes it viable for a nano-object selected from an ensemble with a high mass variability. Given these advantages, a quantum superposition with a 100 nm spatial separation for a massive object of 10^{9} amu is achievable experimentally, providing a route to test postulated modifications of quantum theory such as continuous spontaneous localization.
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Affiliation(s)
- C Wan
- QOLS, Blackett Laboratory, Imperial College London, London SW7 2BW, United Kingdom
| | - M Scala
- QOLS, Blackett Laboratory, Imperial College London, London SW7 2BW, United Kingdom
| | - G W Morley
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Atm A Rahman
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - H Ulbricht
- Department of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, United Kingdom
| | - J Bateman
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, United Kingdom
| | - P F Barker
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - S Bose
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - M S Kim
- QOLS, Blackett Laboratory, Imperial College London, London SW7 2BW, United Kingdom
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Kong Y, Wu J, Zhang D, Wan C, Yuan L. The Role of miR-124 in Drosophila Alzheimer's Disease Model by Targeting Delta in Notch Signaling Pathway. Curr Mol Med 2016; 15:980-9. [PMID: 26592243 DOI: 10.2174/1566524016666151123114608] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 10/20/2015] [Accepted: 11/20/2015] [Indexed: 11/22/2022]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder which mainly affects elderly population. MicroRNAs (miRNA) are small RNA molecules that fine-tune gene expression at posttranscriptional level and exert important functions in AD. MicroRNA-124 (miR-124) is a kind of miRNA abundantly expressed in the central nervous system. It is highly conserved from Caenorhabditis elegans to humans. However, its function in AD is still elusive. In this study, we found miR-124 was significantly down-regulated in AD flies. miR-124 mutant flies showed impaired climbing ability and shortened lifespan. In contrast, miR-124 expression rescued locomotive defects of AD flies. Using microarray analysis to test gene expression profiles of miR-124 mutant flies, we found that Notch signaling pathway was potentially targeted by miR-124. Further experiments showed that miR-124 regulated Notch ligand Delta expression by acting on specific site of Delta 3`UTR. In addition, reduced Delta expression by RNA interference extended lifespan and ameliorated learning defects of AD Drosophila. Notch inhibitor DAPT could also alleviate AD phenotypes, which confirmed our findings. In conclusion, our study indicates that miR-124 plays neuroprotective roles in AD Drosophila by targeting Delta in Notch signaling pathway, which helps further our understanding of miRNAs in the molecular pathology of AD.
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Affiliation(s)
- Y Kong
- Department of Biochemistry and Molecular Biology, School of Medicine, Southeast University, 210009, Nanjing, China.
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Choudhary M, Delaviz Y, Loh R, Polasky M, Wan C, Todd DB, Hyun KS, Dey S, Wu F. Measurement of Shear Viscosity and Solubility of Polystyrene Melts Containing Various Blowing Agents. J CELL PLAST 2016. [DOI: 10.1177/0021955x05059036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This article presents measured data on shear viscosity and solubility of HCFC-142b and HFC-134a/ethanol blowing agent laden polystyrene melts at different temperatures. This study establishes the baseline for more novel and innovative blowing agent systems to replace HCFC-142b. The shear viscosity is measured using a helical barrel rheometer. Apparent solubility is determined by observing the onset of gas bubble presence or absence in a specially designed optical cell with sapphire windows using a microscope–CCD camera–monitor/recorder system. The article presents a selection of viscosity and solubility data and, where possible, compares them with measurements carried out by others. The dynamic methods of measuring solubility and viscosity of gas laden polymer melts used in this study are closer to the polymer foam manufacturing practice.
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Affiliation(s)
- M. Choudhary
- Owens Corning Science & Technology, Granville, OH, USA
| | - Y. Delaviz
- Owens Corning Science & Technology, Granville, OH, USA
| | | | - M. Polasky
- Owens Corning Foam Technology Center, Tallmadge, OH, USA
| | | | | | - K. S. Hyun
- Polymer Processing Institute, Newark, NJ, USA
| | - S. Dey
- SONOCO, Hartsville, SC, USA
| | - F. Wu
- National Institute of Standards and Technology, Gaithersburg, MD, USA
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Phan TD, Kluger R, Wan C. Minimally Invasive Cardiac Output Monitoring: Agreement of Oesophageal Doppler, LiDCOrapid™ and Vigileo FloTrac™ Monitors in Non-Cardiac Surgery. Anaesth Intensive Care 2016; 44:382-90. [DOI: 10.1177/0310057x1604400313] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
There is lack of data about the agreement of minimally invasive cardiac output monitors, which make it impossible to determine if they are interchangeable or differ objectively in tracking physiological trends. We studied three commonly used devices: the oesophageal Doppler and two arterial pressure–based devices, the Vigileo FloTrac™ and LiDCOrapid™. The aim of this study was to compare the agreement of these three monitors in adult patients undergoing elective non-cardiac surgery. Measurements were taken at baseline and after predefined clinical interventions of fluid, metaraminol or ephedrine bolus. From 24 patients, 131 events, averaging 5.2 events per patient, were analysed. The cardiac index of LiDCOrapid versus FloTrac had a mean bias of −6.0% (limits of agreement from −51% to 39%) and concordance of over 80% to the three clinical interventions. The cardiac index of Doppler versus LiDCOrapid and Doppler versus FloTrac, had an increasing negative bias at higher mean cardiac outputs and there was significantly poorer concordance to all interventions. Of the preload-responsive parameters, Doppler stroke volume index, Doppler systolic flow time and FloTrac stroke volume variation were fair at predicting fluid responsiveness while other parameters were poor. While there is reasonable agreement between the two arterial pressure–derived cardiac output devices (LiDCOrapid and Vigileo FloTrac), these two devices differ significantly to the oesophageal Doppler technology in response to common clinical intraoperative interventions, representing a limitation to how interchangeable these technologies are in measuring cardiac output.
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Affiliation(s)
- T. D. Phan
- Department of Anaesthesia and Acute Pain Medicine, St Vincent's Hospital, University of Melbourne, Melbourne, Victoria
| | - R. Kluger
- Department of Anaesthesia and Acute Pain Medicine, St Vincent's Hospital, University of Melbourne, Melbourne, Victoria
| | - C. Wan
- Department of Anaesthesia and Acute Pain Medicine, St Vincent's Hospital, University of Melbourne, Melbourne, Victoria
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Mao Z, Zheng X, Qi Y, Zhang M, Huang Y, Wan C, Rao G. Synthesis and biological evaluation of novel hybrid compounds between chalcone and piperazine as potential antitumor agents. RSC Adv 2016. [DOI: 10.1039/c5ra20197g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of novel hybrid compounds between chalcone and piperazine have been synthesized, and their in vitro antitumor activity was evaluated against a panel of human tumor cell lines by MTT assay.
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Affiliation(s)
- Zewei Mao
- School of Traditional Chinese Medicine
- Yunnan University of Traditional Chinese Medicine
- Kunming
- P. R. China
| | - Xi Zheng
- Central Laboratory
- The No. 1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine
- Kunming
- P. R. China
| | - Yan Qi
- Central Laboratory
- The No. 1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine
- Kunming
- P. R. China
| | - Mengdi Zhang
- School of Traditional Chinese Medicine
- Yunnan University of Traditional Chinese Medicine
- Kunming
- P. R. China
| | - Yao Huang
- School of Traditional Chinese Medicine
- Yunnan University of Traditional Chinese Medicine
- Kunming
- P. R. China
| | - Chunping Wan
- Central Laboratory
- The No. 1 Affiliated Hospital of Yunnan University of Traditional Chinese Medicine
- Kunming
- P. R. China
| | - Gaoxiong Rao
- School of Traditional Chinese Medicine
- Yunnan University of Traditional Chinese Medicine
- Kunming
- P. R. China
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Wan C, Rao G, Mao Z, Zheng X, Lin Y, Qi Y, Hu C. Concise Synthesis and Biological Evaluation of Chalcone Derivatives Bearing N-Heterocyclic Moieties. HETEROCYCLES 2016. [DOI: 10.3987/com-16-13452] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Abstract
Therapeutics based on small interfering RNA (siRNA) have a huge potential for the treatment of disease but requires sophisticated delivery systems for in vivo applications. Lipid nanoparticles (LNP) are proven delivery systems for conventional small molecule drugs with over eight approved LNP drugs. Experience gained in the clinical development of LNP for the delivery of small molecules, combined with an understanding of the physical properties of lipids, can be applied to design LNP systems for in vivo delivery of siRNA. In particular, cationic lipids are required to achieve efficient encapsulation of oligonucleotides; however, the presence of a charge on LNP systems can result in toxic side effects and rapid clearance from the circulation. To address these problems, we have developed ionizable cationic lipids with pKa values below 7 that allow oligonucleotide encapsulation at low pH (e.g., pH 4) and a relatively neutral surface at physiological pH. Further optimization of cationic lipids to achieve maximized endosomal destabilization following uptake has resulted in LNP siRNA systems that can silence genes in hepatocytes at doses as low as 0.005 mg siRNA/kg body weight in mouse models. These systems have been shown to be highly effective clinically, with promising results for the treatment of hypercholesterolemia and transthyretin-induced amyloidosis among others. More LNP siRNA therapeutics, targeting different tissues and diseases, are expected to become available in the near future.
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Affiliation(s)
- C Wan
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada,
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Weijun F, Hao Z, Wan C, Han Q, Ze S, Xin L. Comparison of the gallbladder damage caused by microwave ablation and cryoablation in vivo porcine livers. Indian J Cancer 2015; 52 Suppl 2:e84-90. [DOI: 10.4103/0019-509x.172520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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