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Qiu JZ, Guo CJ, Wu Q, Liao PY, Deng J, Chen ZF, Yao S, Lin WQ, Jiang J. A Layered Aluminophosphate [C 17H 21N 2] 3[Al 3(PO 4) 4]·5H 2O with Fluorescent Property Derived from Carbazolyl-Modified Template. Inorg Chem 2023; 62:17052-17056. [PMID: 37815023 DOI: 10.1021/acs.inorgchem.3c02837] [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: 10/11/2023]
Abstract
Designing and innovating organic structure-directing agents is the key to synthesizing novel molecular sieve structures. Herein, we design a novel carbazolyl-modified template and further synthesize a two-dimensional layered aluminophosphate with [C17H21N2]3[Al3(PO4)4]·5H2O (denoted as ZHKU-2). ZHKU-2 is composed of AA-stacked [Al3P4O16]3- layers constructed from alternating AlO4 and PO3(=O) tetrahedrons to form a 4.6.8 network featured by capped six-ring secondary building units. Carbazolyl-templated ZHKU-2 exhibits strong purple fluorescence with a high quantum yield of 25.98%. This work expands aluminophosphate materials of the [Al3P4O16]3- family and provides a view for synthesizing new molecular sieves by exploring the organic luminescence structure-directing agents.
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Affiliation(s)
- Jiang-Zhen Qiu
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People's Republic of China
| | - Cheng-Jie Guo
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People's Republic of China
| | - Qinwu Wu
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People's Republic of China
| | - Pei-Yu Liao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Jinyu Deng
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People's Republic of China
| | - Zhuo-Fan Chen
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People's Republic of China
| | - Suyang Yao
- School of Chemistry and Materials Science, Guangdong University of Education, Guangzhou 510303, People's Republic of China
| | - Wei-Quan Lin
- School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou 510006, People's Republic of China
| | - Jiuxing Jiang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
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Qiu JZ, You Y, Yu Y, Chen ZF, Guo CJ, Zhong YL, Lin WQ, Shu XG. A Mononuclear Iron(II) Spin-Crossover Molecule Decorated by Photochromic Azobenzene Group. Molecules 2022; 27:molecules27051571. [PMID: 35268672 PMCID: PMC8912052 DOI: 10.3390/molecules27051571] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/15/2022] [Accepted: 02/25/2022] [Indexed: 02/05/2023] Open
Abstract
Aiming at constructing photoresponsive spin crossover (SCO) behavior, herein we designed a new ligand Abtz (Abtz = (E)-N-(4-((E)-phenyldiazenyl)phenyl)-1-(thiazol-4-yl)methanimine) which was decorated by a photochromic azobenzene group. Based on this photochromic ligand, a mononuclear Fe(II) SCO molecule [Fe(Abtz)3](BF4)2·(EAC)2 (1, EAC = ethyl acetate) was successfully synthesized and showed a complete one-step SCO behavior. Under continuous UV light and blue-light exposure, the cis–trans photoisomerization of both ligand Abtz and compound 1 in the liquid phase was confirmed through UV–Vis spectra. Moreover, the 1H-NMR spectra of Abtz reveal a trans–cis conversion ratio of 37%. Although the UV–Vis spectra reveal the photochromic behavior for 1 in the solution phase, the SCO behavior in the liquid state is absent according to the variable-temperature Evans method, suggesting the possible decomposition. Moreover, in the solid state, the cis–trans photoisomerization of both Abtz and 1 was not observed, due to the steric hindrance.
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Affiliation(s)
- Jiang-Zhen Qiu
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
- Correspondence: (J.-Z.Q.); (W.-Q.L.); (X.-G.S.)
| | - Yong You
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
| | - Ye Yu
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
| | - Zhuo-Fan Chen
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
| | - Cheng-Jie Guo
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
| | - Yi-Ling Zhong
- Guangzhou Key Laboratory for Clean Energy and Materials, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China;
| | - Wei-Quan Lin
- Guangzhou Key Laboratory for Clean Energy and Materials, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China;
- Correspondence: (J.-Z.Q.); (W.-Q.L.); (X.-G.S.)
| | - Xu-Gang Shu
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
- Correspondence: (J.-Z.Q.); (W.-Q.L.); (X.-G.S.)
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Sun XJ, Guo CJ, Shi H. [Correlation between Toxoplasma gondii infection and spontaneous abortion in pregnant women: a case-control study]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:423-425. [PMID: 32935522 DOI: 10.16250/j.32.1374.2020217] [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] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To examine the correlation between Toxoplasma gondii infection and spontaneous abortion among pregnant women, so as to provide the evidence for the developmentofpreventivemeasuresforspontaneousabortion. METHODS A total of 228 serum samples collected from women with spontaneous abortion for the first time from January 2018 to December 2019 were selected as the case group, while 228 serum samples collected from pregnant women with a normal delivery and without a history of abortion during the same period were selected as the control group. The serum IgG and IgM antibodies against T. gondii were detected and compared in both groups, and the correlation between T. gondii infection and spontaneous abortion was evaluated. RESULTS There were no significant differences between the case and control groups in terms of age, education levels, occupation, residency and proportion of keeping cats (all P values > 0.05). The positive rate of anti-T. gondii IgM antibody was significantly higher in the case group than in the control group (adjusted χ2 = 4.08, P < 0.05; OR = 8.25), while no significant difference was seen between the case and control groups (χ2 = 0.42, P > 0.05). CONCLUSIONS Acute maternal T. gondii infection may remarkably increase the chance of spontaneous abortion. Progestational health education regarding toxoplasmosis prevention and control knowledge and detection of T. gondii infection during pregnancy should be strengthened.
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Affiliation(s)
- X J Sun
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Dalian Medical University, Dalian 116001, China
| | - C J Guo
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Dalian Medical University, Dalian 116001, China
| | - H Shi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Dalian Medical University, Dalian 116001, China
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Guo CJ, He J, He JG. The immune evasion strategies of fish viruses. Fish Shellfish Immunol 2019; 86:772-784. [PMID: 30543936 DOI: 10.1016/j.fsi.2018.12.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 12/07/2018] [Accepted: 12/09/2018] [Indexed: 06/09/2023]
Abstract
Viral infection of a host rapidly triggers intracellular signaling events that induce interferon production and a cellular antiviral state. Viral diseases are important concerns in fish aquaculture. The major mechanisms of the fish antiviral immune response are suggested to be similar to those of mammals, although the specific details of the process require further studies. Throughout the process of pathogen-host coevolution, fish viruses have developed a battery of distinct strategies to overcome the biochemical and immunological defenses of the host. Such strategies include signaling interference, effector modulation, and manipulation of host apoptosis. This review provide an overview of the different mechanisms that fish viruses use to evade host immune responses. The basic mechanisms of immune evasion of fish virus are discussed, and some examples are provided to illustrate particular points.
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Affiliation(s)
- C J Guo
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering / State Key Laboratory for Biocontrol, School of Marine, Sun Yat-sen University, 135 Xingang Road West, Guangzhou 510275, PR China; Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, 135 Xingang Road West, Guangzhou 510275, PR China
| | - J He
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering / State Key Laboratory for Biocontrol, School of Marine, Sun Yat-sen University, 135 Xingang Road West, Guangzhou 510275, PR China; Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, 135 Xingang Road West, Guangzhou 510275, PR China
| | - J G He
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering / State Key Laboratory for Biocontrol, School of Marine, Sun Yat-sen University, 135 Xingang Road West, Guangzhou 510275, PR China; Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, 135 Xingang Road West, Guangzhou 510275, PR China.
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Sang TT, Guo CJ, Guo DD, Wang XY. [Effect of traditional Chinese medicine in inhibiting obesity and inflammatory diseases by regulating gut microbiota]. Zhongguo Zhong Yao Za Zhi 2018; 43:3235-3242. [PMID: 30200724 DOI: 10.19540/j.cnki.cjcmm.20180423.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Indexed: 11/18/2022]
Abstract
Traditional Chinese medicine(TCM) has been increasingly used in the prevention and treatment of obesity and obesity-related diseases. However, its mechanism of action is not yet clear. In recent years, with the development of high-throughput sequencing technology, scientific researches have found that the disorder of gut microbiota is associated with obesity and other diseases. Furthermore, it has been found that TCM can improve the structure of gut microbiota by increasing probiotics and reducing pathogens, which play an importent role in preventing the development and progression of obesity and other diseases. This article first explores the possible association between intestinal microbiota and obesity. Then, it reviews the traditional Chinese medicine and its role in regulating intestinal microbiota for the prevention and treatment of diseases, including obesity and inflammation, insulin resistance, type 2 diabetes, non-alcoholic fatty liver disease, inflammatory bowel disease and other diseases, in theexpectation of new strategies and research direction for treating obesity and relevant diseases, and providing important guidance for further studies in this field in the future.
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Affiliation(s)
- Ting-Ting Sang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 311400, China
| | - Cheng-Jie Guo
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 311400, China
| | - Dan-Dan Guo
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 311400, China
| | - Xing-Ya Wang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 311400, China
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Luo Y, Zhang W, Cheng JW, Xiao M, Sun GR, Guo CJ, Liu MJ, Cong PS, Kudinha T. Molecular epidemiology of Clostridium difficile in two tertiary care hospitals in Shandong Province, China. Infect Drug Resist 2018; 11:489-500. [PMID: 29670381 PMCID: PMC5896643 DOI: 10.2147/idr.s152724] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Purpose The incidence and severity of Clostridium difficile infection (CDI) have markedly increased over the past decade. However, there is very limited epidemiological data on CDI in China so far, specifically no data in Shandong Province. The aim of this study was to evaluate diagnostic algorithm for CDI and to gain data on molecular epidemiology of CDI in the Shandong Province of China. Materials and methods Nonrepetitive unformed fecal specimens (n=504) were investigated by the glutamate dehydrogenase (GDH), C. difficile toxin A&B (CDAB) tests and toxigenic culture. Furthermore, 85 isolates were characterized by toxin gene detection, multilocus sequence typing, ribotyping and antimicrobial susceptibility testing. Results The algorithm of combining GDH and CDAB tests could define diagnosis of 54.2% CDI cases and excluded 90% of non-CDI. Further adding the toxigenic culture to the algorithm enhanced the detection sensitivity to 100%. Toxigenic strains comprised 84.7% of isolates, including A+B+CDT− (71.8%, 61/85), A−B+CDT− (11.8%, 10/85) and A+B+CDT+ (1.2%, 1/85) isolates. RT046/ST35 (13.9%, 10/72), RT014/ST2 (12.5%, 9/72) and RT017/ST37 (12.5%, 9/72) were the more common genotypes among toxigenic C. difficile strains. The clinical severity score of A−B+CDT− toxin genes genotype (3.50±0.85) was significantly higher than the A+B+CDT− type (2.59±0.93) (P<0.05). RT046/ST35 isolates were highly prevalent and had high clinical severity scores (3.80±0.92). Variations in resistance from different sequence types (STs) were observed. Toxigenic strains showed higher resistance rates to erythromycin, clindamycin and ciprofloxacin compared to nontoxigenic strains (P<0.05). Conclusion The epidemiology of C. difficile in Shandong Province differed from other regions in China. Comprehensive optimized diagnosis strategy and continuous surveillance should be established and applied in order to curb the spread of toxigenic C. difficile strains, especially for hospitalized patients.
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Affiliation(s)
- Ying Luo
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China.,Department of Clinical Laboratory, Zibo Central Hospital, Zibo, China
| | - Wen Zhang
- Department of Clinical Laboratory, Zibo Central Hospital, Zibo, China
| | - Jing-Wei Cheng
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Meng Xiao
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Gui-Rong Sun
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Cheng-Jie Guo
- Department of Clinical Laboratory, Zibo Central Hospital, Zibo, China
| | - Ming-Jun Liu
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Pei-Shan Cong
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Timothy Kudinha
- Charles Sturt University, Orange, NSW, Australia.,Central West Pathology Laboratory, Orange, NSW, Australia
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He DF, Liu MY, Zhang LJ, Guo CJ, Chi YP, Zhao L, Zhang XJ. [Coronary microvascular resistance and its relevant factors in patients with moderate coronary stenosis and chest pain]. Zhonghua Nei Ke Za Zhi 2018; 57:270-274. [PMID: 29614585 DOI: 10.3760/cma.j.issn.0578-1426.2018.04.008] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the impact of cardiovascular risk factors on index of microvascular resistance (IMR) and coronary flow reserve (CFR) and to explore the characteristics of IMR and CFR and the relationship between IMR and angiographic features in patients with intermediate coronary stenosis and chest pain. Methods: Fractional flow reserve (FFR), CFR, and IMR were measured in patients who underwent invasive coronary angiography with 40%-70% stenosis by visual assessment. All patients with FFR>0.75 were enrolled and grouped with the cut-off points of IMR≥25 and CFR≤2.0. Patients with IMR≥25 were group H, including two sub-groups (high IMR-low CFR, group H1 and high IMR-high CFR, group H2), while those with IMR<25 were group N. The thrombolysis in myocardial infarction (TIMI) frame were counted. Results: A total of 34 patients with FFR>0.75 were enrolled with 61.8%(21 cases) of males and 38.2% (13 cases) of females. The mean age was (57.3±8.1) years old. High IMR accounted for 47.1% of all cases. There was significant difference between group H and N in TIMI frame (33.0 vs. 20.8, P=0.031). There were significant differences between group H1 and H2 in homocysteine (17.8 µmol/L vs. 12.0 µmol/L, P=0.005) and IMRcorr (58.0 vs. 36.1, P=0.002). IMRcorr was correlated to TIMI frame (r=0.40, P=0.012) for all cases. The sensitivity and specificity of inferring IMR≥35.3 by TIMI frame were 0.75 and 0.65 (P=0.049) with TIMI frame over 40.5. Conclusions: High IMR may be one of the reasons for chest pain in patients with intermediate coronary stenosis. There is no correlation between vascular risk factors and IMR or CFR, while there is positive correlation between TIMI frame and IMR. The specificity is 65% for inferring IMR rise with TIMI frame over 40.5.
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Affiliation(s)
- D F He
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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Wang YP, Wei JY, Yang JJ, Gao WN, Wu JQ, Guo CJ. Riboflavin supplementation improves energy metabolism in mice exposed to acute hypoxia. Physiol Res 2014; 63:341-50. [PMID: 24564599 DOI: 10.33549/physiolres.932670] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
This study investigated the effects of riboflavin on energy metabolism in hypoxic mice. Kunming mice were fed diets containing riboflavin at doses of 6, 12, 24 and 48 mg/kg, respectively for 2 weeks before exposure to a simulated altitude of 6000 m for 8 h. Changes of riboflavin status and energy metabolism were assessed biochemically. Simultaneously, a (1)H nuclear magnetic resonance (NMR) based metabolomic technique was used to track the changes of plasma metabolic profiling. It was found that the content of hepatic riboflavin was decreased and erythrocyte glutathione activation coefficient was elevated significantly under hypoxic condition. Meanwhile, increased plasma pyruvate, lactate, beta-hydroxybutyrate and urea, as well as decreased plasma carnitine were observed. Riboflavin supplementation improved riboflavin status remarkably in hypoxic mice and decreased plasma levels of pyruvate, free fatty acids and beta-hydroxybutyrate significantly. Plasma carnitine was increased in response to riboflavin supplementation. Results obtained from (1)H NMR analysis were basically in line with the data from biochemical assays and remarkable changes in plasma taurine, choline and some other metabolites were also indicated. It was concluded that riboflavin requirement was increased under acute hypoxic condition and riboflavin supplementation was effective in improving energy metabolism in hypoxic mice.
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Affiliation(s)
- Y P Wang
- Institute of Health and Environmental Medicine, Tianjin, P. R. China.
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Huang GP, Pan ZJ, Huang JP, Yang JF, Guo CJ, Wang YG, Zheng Q, Chen R, Xu YL, Wang GZ, Xi YM, Shen D, Jin J, Wang JF. Proteomic analysis of human bone marrow mesenchymal stem cells transduced with human telomerase reverse transcriptase gene during proliferation. Cell Prolif 2008; 41:625-44. [PMID: 18616696 DOI: 10.1111/j.1365-2184.2008.00543.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVES Previous studies have reported immortalization and tumorigenicity of human mesenchymal stem cells (hMSCs) transduced with exogenous human telomerase reverse transcriptase (hTERT). We also have established a line of hMSCs transduced with hTERT (hTERT-hMSCs) and we have cultured these cells for 290 population doublings (PDs) during which they demonstrated a large proliferation potential but with no tumorigenicity. The aim of this study was to investigate the protein expression profile of hTERT-hMSCs with two-dimensional gel electrophoresis and peptide mass fingerprinting by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, to be able to analyse the effects of exogenous hTERT on protein expression in hMSCs. MATERIALS AND METHODS We generated proteome maps of primary hMSCs and hTERT-hMSCs at PD 95 and PD 275. RESULTS A total of 1543 +/- 145 protein spots in gels of primary MSCs at PD 12, 1611 +/- 186 protein spots in gels of hTERT-hMSCs at PD 95 and 1451 +/- 126 protein spots in gels of hTERT-hMSCs at 275 PD were detected. One hundred of these were successfully identified, including 20 which were differentially expressed. CONCLUSIONS The results suggest that sustaining levels of prohibitin and p53 expression along with differential expression of proteins in hTERT-hMSCs provide an insight into lack of transforming activity of hTERT-hMSCs during cell proliferation.
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Affiliation(s)
- G P Huang
- College of Life Sciences, Zhejiang University, Hangzhou, China
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Liu H, Yu H, Jia HY, Zhang W, Guo CJ. [Detection of FLT3 gene mutation in hematologic malignancies and its clinical significance]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2007; 15:709-13. [PMID: 17708788] [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: 05/16/2023]
Abstract
To study the FLT3 gene expression and its internal tandem duplication in hematologic malignancies and its clinical significance, polymerase chain reaction (PCR) and DNA sequencing were used to detect the FLT3/ITD mutation in blast cells of bone marrow from 86 patients with hematologic malignancies, including 32 cases of acute myeoloid leukemia (AML), 18 cases of acute lymphoblastic leukemia (ALL), 2 cases of acute hybrid leukemia (AHL), 12 cases of myelodysplastic syndromes (MDS), 10 cases of chronic myelogenous leukemia (CML), 3 cases of non-Hodgkin's lymphoma (NHL) and 9 cases of multiple myeloma (MM). The resultes showed that the expression of FLT3/ITD gene could be detected in 5 of 32 (15.6%) AML patients, including 1/7 of M(3), 1/10 of M(4) and 3/10 of M(5). More FLT3 aberrations were found in AML-M(5). No FLT3/ITD was found in 18 cases of ALL, in 2 cases of AHL, in 12 cases of MDS and in 10 cases of CML. No FLT3 was found in 3 cases of NHL and in 9 cases of MM. Sequence analysis in 2 case with abnormal PCR electrophoretic patterns revealed that the ITDs were located within exon 14 from 27 to 63 bp, which was a simple tandem duplication, and did not altered the reading frame. FLT3/ITD was associated with a higher peripheral blood white cell count (p < 0.01), higher percentage of bone marrow blast cells (p < 0.01) and lower complete mission rate. It is concluded that more FLT3/ITD mutation occurs in AML-M(5) patients. Sequence of the mutants is in frame mutation. FLT3/ITD mutation is associated with higher peripheral blood white cell count, higher percentage of bone marrow blast cells and lower complete remission rate, FIT3/IID gene mutation may be used to predict prognosis of patients with AML.
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Affiliation(s)
- Hong Liu
- Department of Microbiology, Qingdao University Medical College, Qingdao 266021, China
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Folcik RM, Merrill JD, Li Y, Guo CJ, Douglas SD, Starr SE, Ho WZ. HIV-1 infection of placental cord blood monocyte-derived dendritic cells. J Hematother Stem Cell Res 2001; 10:609-20. [PMID: 11672507 PMCID: PMC4009687 DOI: 10.1089/152581601753193823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Dendritic cells (DC), the most potent antigen-presenting cells (APC), have been implicated as the initial targets of HIV infection in skin and mucosal surfaces. DC can be generated in vitro from blood-isolated CD14(+) monocytes or CD34(+) hematopoietic progenitor cells in the presence of various cytokines. In this study, we investigated whether monocytes obtained from placental cord blood are capable of differentiation into dendritic cells when cultured with a combination of cytokines - granulocyte-macrophage colony-stimulating factor (GM-CSF), interleukin-4 (IL-4), and tumor necrosis factor-alpha (TNF-alpha). We then examined HIV infection, HIV receptor (CD4, CCR5) expression, and beta-chemokine [macrophage inflammatory protein-1alpha and -1beta (MIP-1alpha, MIP-1beta)] production by placental cord monocyte-derived dendritic cells (MDDC) as compared to that of autologous cord monocyte-derived macrophages (MDM). Monocytes isolated from placental cord blood differentiate into DC after 7 days in culture with the mixture of cytokines, as demonstrated by development of characteristic DC morphology, loss of CD14 expression, and gain of CD83, a marker for mature DC. Mature cord MDDC had significantly lower susceptibility to M-tropic ADA (CCR5-dependent) envelope-pseudotyped HIV infection in comparison to autologous placental cord MDM, whereas there was no significant difference in virus replication in cord MDDC and MDM infected with murine leukemia virus envelope-pseudotyped HIV (HIV receptor-independent). This limited susceptibility of cord MDDC to M-tropic HIV infection may be due to lower expression of CD4 and CCR5 on the cell membrane and higher production of MIP-1alpha and MIP-1beta. These data provide important information toward our understanding of the biological properties of cord MDDC in relation to HIV infection.
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Affiliation(s)
- R M Folcik
- Division of Immunologic and Infectious Diseases, The Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA
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Jiang YG, Guo CJ, Wei JY. [Effects of zinc on the free radical signals and apoptosis in liver with ischemia/ reperfusion injury]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2001; 17:244-246. [PMID: 21189622] [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: 05/30/2023]
Abstract
AIM In order to explore the preventive mechanism of zinc, the changes of free radical signals and apoptosis in hepatic ischemia/reperfusion injury (HIR) rats were observed. METHODS The MDA levels in serum were measured by fluorophotometry, free radical signals in liver were analyzed with electron spin resonance (ESR) method; and apoptosis was assayed by flow cytometry (FCM). RESULTS MDA levels in serum and free radical contents in liver were both increased in rats with HIR. After zinc supplementation, they were decreased. After HIR, the percentage of subdiploid cells was 57.72% while it was reduced to 40.85% after zinc supplementation. CONCLUSION Zinc may protect against HIR injury by inhibiting the production of free radicals in liver and hepatocellular apoptosis.
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Affiliation(s)
- Y G Jiang
- Institute of Health and Environmental Medicine, Academy of Military Medical Sciences, Tianjin 300050, China
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Liu LJ, Guo CJ, Jiao XM. [Effect of acupuncture on immunologic function and histopathology of transplanted mammary cancer in mice]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1995; 15:615-7. [PMID: 8704430] [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: 02/01/2023]
Abstract
This experiment mainly describes the effects of acupuncture on immunologic function and histopathology of transplanted mammary cancer in mice. The results were as follows: in acupuncture group, NK cell activity and T-lymphocyte positive rate of acid alpha-naphthyl acetate esterase (ANAE) and lymphocyte transformation rate were all increased. Compared with the control group, there was a significant difference (P < 0.01). The difference was insignificant, when compared with normal group (P > 0.05). Comparing the pathology grading of acupuncture group with control group, it showed marked difference in pathological section (P < 0.01). Adenoid structure and the degree of lymphocytic infiltration also have marked difference between acupuncture and control group (P < 0.05). Less tumour volume in acupuncture than control group were observed (P < 0.01). This indicated that acupuncture might increase the immunologic function of transplanted mammary cancer in mice and inhibit the growth of mammary cancer and enhance both differentiation level of mammary cancer cells and lymphocytic infiltration. Possibly acupuncture mightt reduce the malignancy of mammary cancer cells.
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Affiliation(s)
- L J Liu
- Dept. of Acupuncture and Moxibustion, Bethune International Peace Hospital, Shijiazhuang
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Abstract
A 13 per cent body surface area (BSA), full skin thickness burn was inflicted on LACA male mice and the changes in cellular immunity and nutritional status were observed. The results showed that thymus, spleen and circulating lymphocytes were significantly involved. A diminished mitogen responsiveness of spleen cells and altered peritoneal macrophage function were confirmed. Ear swelling tests indicated that the cellular immunity of burned mice was most severely depressed in week 2 postburn. The present study also showed that the dramatic change in nutritional status occurred earlier than that in cellular immunity and suggested the importance of early nutritional support after thermal injury.
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Affiliation(s)
- C J Guo
- Institute of Hygiene and Environmental Medicine, Tianjin, People's Republic of China
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Guo CJ, Zhang WH. Effect of acupuncture treatment in 500 patients of mammary gland hyperplasia. J TRADIT CHIN MED 1988; 8:157-60. [PMID: 3216654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Hunt JM, Guo CJ, Desai PA. Detection of epoxide hydrolase in rat hepatoma cell lines and primary rat liver cells by immunoblotting. Cancer Lett 1987; 37:285-91. [PMID: 3119192 DOI: 10.1016/0304-3835(87)90113-3] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Rat epoxide hydrolase (EH) (EC 3.3.2.3) is elevated in cells of premalignant liver lesions, and variable EH activity has been reported for hepatocellular carcinomas. To facilitate detection of altered EH levels in liver cells, an immunoblotting method was devised. Rabbit antiserum specific for rat EH was prepared and used to detect EH extracted from suspensions of normal liver cells and from hepatoma cell lines. Compared with normal liver cells, 3 rat hepatoma cell lines, 7777, HTC and 17X, showed virtually undetectable EH levels by immunoblotting. The immunoblotting results rule out the possibility that very low EH enzymatic activity in the hepatoma cells results from production of normal amounts of non-functional enzyme protein.
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Affiliation(s)
- J M Hunt
- Department of Pathology and Laboratory Medicine, University of Texas Medical School, Houston 77225
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