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Yang Q, Xu Y, Bin X, Chan KP, Chen S, Qian Z, Yao Y, Yuan XL, Qiu K, Huang Y, Ng TK. Combined treatment of human mesenchymal stem cells and green tea extract on retinal ganglion cell regeneration in rats after optic nerve injury. Exp Eye Res 2024; 239:109787. [PMID: 38211683 DOI: 10.1016/j.exer.2024.109787] [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: 09/19/2023] [Revised: 12/15/2023] [Accepted: 01/09/2024] [Indexed: 01/13/2024]
Abstract
Retinal ganglion cell (RGC) death and axonal loss cause irreversible vision loss upon optic nerve (ON) injury. We have independently demonstrated that mesenchymal stem cells (MSCs) and green tea extract (GTE) promote RGC survival and axonal regeneration in rats with ON injury. Here we aimed to evaluate the combined treatment effect of human bone marrow-derived MSCs (hBM-MSCs) and GTE on RGC survival and axonal regeneration after ON injury. Combined treatment of hBM-MSCs and GTE promoted RGC survival and neurite outgrowth/axonal regeneration in ex vivo retinal explant culture and in rats after ON injury. GTE increased Stat3 activation in the retina after combined treatment, and enhanced brain-derived neurotrophic factor secretion from hBM-MSCs. Treatment of 10 μg/mL GTE would not induce hBM-MSC apoptosis, but inhibited their proliferation, migration, and adipogenic and osteogenic differentiation in vitro with reducing matrix metalloproteinase secretions. In summary, this study revealed that GTE can enhance RGC protective effect of hBM-MSCs, suggesting that stem cell priming could be a prospective strategy enhancing the properties of stem cells for ON injury treatment.
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Affiliation(s)
- Qichen Yang
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Yanxuan Xu
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Xin Bin
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Kwok Ping Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Shaowan Chen
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Zhen Qian
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Yao Yao
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Xiang-Ling Yuan
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Kunliang Qiu
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Yuqiang Huang
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Tsz Kin Ng
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.
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Yuan XL, Wu YB, Song XL, Chen Y, Lu Y, Lai XY, Shi JM, Liu LZ, Zhao YM, Yu J, Yang LX, Lan JP, Cai Z, Huang H, Luo Y. [Efficacy and prognostic factors of allogeneic hematopoietic stem cell transplantation in the treatment of secondary acute myeloid leukemia]. Zhonghua Xue Ye Xue Za Zhi 2024; 45:41-47. [PMID: 38527837 DOI: 10.3760/cma.j.cn121090-20230929-00151] [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: 03/27/2024]
Abstract
Objective: To evaluate the efficacy and prognostic factors of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in patients with secondary acute myeloid leukemia (sAML) . Methods: In this multicenter, retrospective clinical study, adult patients aged ≥18 years who underwent allo-HSCT for sAML at four centers of the Zhejiang Hematopoietic Stem Cell Transplantation Collaborative Group from January 2014 to November 2022 were included, and the efficacy and prognostic factors of allo-HSCT were analyzed. Results: A total of 95 patients were enrolled; 66 (69.5%) had myelodysplastic syndrome-acute myeloid leukemia (MDS-AML) , 4 (4.2%) had MDS/MPN-AML, and 25 (26.3%) had therapy-related AML (tAML) . The 3-year CIR, LFS, and overall survival (OS) rates were 18.6% (95% CI 10.2%-27.0%) , 70.6% (95% CI 60.8%-80.4%) , and 73.3% (95% CI 63.9%-82.7%) , respectively. The 3-year CIRs of the M-AML group (including MDS-AML and MDS/MPN-AML) and the tAML group were 20.0% and 16.4%, respectively (P=0.430) . The 3-year LFSs were 68.3% and 75.4%, respectively (P=0.176) . The 3-year OS rates were 69.7% and 75.4%, respectively (P=0.233) . The 3-year CIRs of the groups with and without TP53 mutations were 60.0% and 13.7%, respectively (P=0.003) ; the 3-year LFSs were 20.0% and 76.5%, respectively (P=0.002) ; and the 3-year OS rates were 40.0% and 77.6%, respectively (P=0.002) . According to European LeukmiaNet 2022 (ELN2022) risk stratification, the 3-year CIRs of patients in the low-, intermediate-, and high-risk groups were 8.3%, 17.8%, and 22.6%, respectively (P=0.639) . The three-year LFSs were 91.7%, 69.5%, and 65.6%, respectively (P=0.268) . The 3-year OS rates were 91.7%, 71.4%, and 70.1%, respectively (P=0.314) . Multivariate analysis revealed that advanced disease at allo-HSCT and TP53 mutations were independent risk factors for CIR, LFS, and OS. Conclusion: There was no significant difference in the prognosis of patients who underwent allo-HSCT among the MDS-AML, MDS/MPN-AML, and tAML groups. Advanced disease at transplantation and TP53 mutations were poor prognostic factors. ELN2022 risk stratification had limited value for predicting the prognosis of patients with sAML following allo-HSCT.
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Affiliation(s)
- X L Yuan
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - Y B Wu
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - X L Song
- Zhejiang Provincial People's Hospital, Hangzhou 310014, China
| | - Y Chen
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China
| | - Y Lu
- People's Hospital Affiliated to Ningbo University, Ningbo 315000, China
| | - X Y Lai
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - J M Shi
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - L Z Liu
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - Y M Zhao
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - J Yu
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - L X Yang
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - J P Lan
- Zhejiang Provincial People's Hospital, Hangzhou 310014, China
| | - Z Cai
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - H Huang
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
| | - Y Luo
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine; Liangzhu Laboratory; Institute of Hematology, Zhejiang University; Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou 310003, China
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Wu Z, Huang C, Zheng Y, Yuan XL, Chen S, Xu Y, Chen LJ, Pang CP, Zhang M, Ng TK. Primary open-angle glaucoma risk prediction with ABCA1 and LOC102723944 variants and their genotype-phenotype correlations in southern Chinese population. Mol Genet Genomics 2023; 298:1343-1352. [PMID: 37516687 DOI: 10.1007/s00438-023-02058-6] [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: 07/09/2022] [Accepted: 07/19/2023] [Indexed: 07/31/2023]
Abstract
Glaucoma is a leading cause of irreversible visual impairment and blindness worldwide. Previous genome-wide association studies have identified caveolin-1 (CAV1), ATP-binding cassette A1 (ABCA1), and forkhead box C1 (FOXC1) loci associated with primary open angle glaucoma (POAG), a major subtype of glaucoma. This study aimed to fine map the association pattern of FOXC1 locus with POAG and determine the correlations of FOXC1, ABCA1, and CAV1 variants with ocular and lipidemic parameters in southern Chinese population. In total, 1291 unrelated Han Chinese subjects were recruited, including 301 high-tension glaucoma (HTG), 126 normal-tension glaucoma (NTG), and 864 control subjects. Twelve variants in FOXC1 locus, and two variants in ABCA1 and CAV1 genes, were genotyped by TaqMan assays. Genetic risk score and genotype-phenotype correlation analyses were conducted. In the FOXC1 locus, LOC102723944 rs6596830, rather than previously reported rs2745572, showed significant association with POAG (P = 8.61 × 10-4, odds ratio (OR) = 0.75) and HTG (P = 3.68 × 10-3, OR = 0.75). ABCA1 rs2487032 was also significantly associated with POAG (P = 3.00 × 10-5, OR = 0.70) and HTG (P = 2.08 × 10-4, OR = 0.70). Joint analysis showed that carriers of homozygous non-protective alleles of ABCA1 rs2487032 and LOC102723944 rs6596830 had 2.99-fold higher risk of POAG (P = 1.27 × 10-3) when compared to those carrying homozygous non-risk alleles. Patients with POAG carrying ABCA1 rs2487032 G allele had higher HDL cholesterol, and those with LOC102723944 rs6596830 A allele had lower LDL. This study revealed individual and joint association of ABCA1 and LOC102723944 variants with POAG in southern Chinese population. Subjects carrying non-protective alleles had increased risk to POAG, and corresponding genotypes would affect the lipid profiles.
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Affiliation(s)
- Zhenggen Wu
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Guangdong, Shantou, China
| | - Chukai Huang
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Guangdong, Shantou, China
| | - Yuqian Zheng
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Guangdong, Shantou, China
| | - Xiang-Ling Yuan
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Guangdong, Shantou, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Shaowan Chen
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Guangdong, Shantou, China
| | - Yanxuan Xu
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Guangdong, Shantou, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Chi Pui Pang
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Guangdong, Shantou, China.
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.
| | - Mingzhi Zhang
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Guangdong, Shantou, China.
| | - Tsz Kin Ng
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Guangdong, Shantou, China.
- Shantou University Medical College, Shantou, Guangdong, China.
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.
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Yuan XL, Chen SL, Xu Y, Yao Y, Liang JJ, Zhuang X, Hald ES, Ng TK. Green tea extract enhances retinal ganglion cell survival and axonal regeneration in rats with optic nerve injury. J Nutr Biochem 2023; 117:109333. [PMID: 36965783 DOI: 10.1016/j.jnutbio.2023.109333] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 01/11/2023] [Accepted: 03/18/2023] [Indexed: 03/27/2023]
Abstract
Current clinical treatments have not yet effectively cured progressive retinal ganglion cell (RGC) death and axonal degeneration after optic nerve (ON) injury. We previously demonstrated green tea extract (GTE) can reduce RGC death in rats after ischemic injury. Here, we aim to determine the prophylactic and therapeutic effects and mechanisms of GTE on RGC survival and axonal regeneration in rats with ON injury. GTE (275 or 550 mg/kg) was administered intragastrically for 7 d before or 14 d post-ON crush surgery in adult Fischer 344 rats. Rats with pre- or post-operative treatment of 275 mg/kg GTE showed significantly higher numbers of RGCs and regenerated axons post-ON injury with improved pupillary light reflex as compared to saline-treated rats. Akt and Erk p42/44 activation was higher in the retina of rats given 275 mg/kg GTE pre-surgery, whereas Stat3 activation was higher in those with 275 mg/kg GTE post-operation. Less activated microglia were observed in rats with pre-treatment of 275 or 550 mg/kg GTE. RNA sequencing analysis identified the downregulation of inflammation, apoptosis, and microglia activation genes in the retina of rats with pre- or post-treatment with 275 mg/kg GTE as compared to the saline-treated rats. In summary, this study revealed the prophylactic and therapeutic treatment effects of GTE on RGC survival and axonal regeneration in rats with ON injury, indicating a potential alternative treatment for traumatic optic neuropathy.
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Affiliation(s)
- Xiang-Ling Yuan
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China; Shantou University Medical College, Shantou, Guangdong, China
| | - Shao-Lang Chen
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Yanxuan Xu
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Yao Yao
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China; Shantou University Medical College, Shantou, Guangdong, China
| | - Jia-Jian Liang
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Xi Zhuang
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Eric S Hald
- Department of Biomedical Engineering, Shantou University, Shantou, Guangdong, China
| | - Tsz Kin Ng
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China; Shantou University Medical College, Shantou, Guangdong, China; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong.
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Ng TK, Cao Y, Yuan XL, Chen S, Xu Y, Chen SL, Zheng Y, Chen H. Whole exome sequencing analysis identifies novel Stargardt disease-related gene mutations in Chinese Stargardt disease and retinitis pigmentosa patients. Eye (Lond) 2022; 36:749-759. [PMID: 33846575 PMCID: PMC8956586 DOI: 10.1038/s41433-021-01525-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 12/22/2020] [Revised: 02/17/2021] [Accepted: 03/29/2021] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES To delineate the disease-causing mutations of the Stargardt disease-related genes in Chinese patients diagnosed with Stargardt disease or retinitis pigmentosa (RP) by whole exome sequencing analysis. METHODS A total of 123 sporadic RP or Stargardt disease patients and 2 Stargardt disease families were recruited. All sporadic patients and the probands of the families were subjected to whole exome sequencing analysis. The candidate mutations were verified by direct sequencing based on the cosegregation pattern and in 200 control subjects and by the bioinformatics analyses. RESULTS A total of three reported ABCA4 mutations were identified in the probands of the two Stargardt disease families. The probands and the affected family members with either homozygous or compound heterozygous mutations showed typical Stargardt disease features, which was absent in their unaffected family members. The cosegregation pattern confirmed the mode of recessive inheritance. Moreover, two sporadic Stargardt disease patients were identified to carry two novel ABCA4 and one PROM1 mutations. In addition, 13 novel variants were found in 119 sporadic RP patients in 7 Stargardt disease-related genes, and 8 novel missense variants were conserved across different species and predicted to be damaging to the protein. All 15 novel variants were absent in our 200 control subjects. CONCLUSIONS This study revealed 22.4% study subjects carrying Stargardt disease-related gene mutations with total 15 novel variants in seven Stargardt disease-related genes, assuring that targeted next-generation sequencing analysis is a high throughput strategy to facilitate the clinical diagnosis from suspicious patients and recommended as a routine examination for inherited retinal dystrophies.
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Affiliation(s)
- Tsz Kin Ng
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Yingjie Cao
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Xiang-Ling Yuan
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Shaowan Chen
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Yanxuan Xu
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Shao-Lang Chen
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Yuqian Zheng
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Haoyu Chen
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
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Xu HL, Liu C, Yi M, Chen SM, Yu Y, Liu SX, Wen FQ, Yuan XL. [Neuroblastoma in a boy with Simpson-Golabi-Behmel syndrome]. Zhonghua Er Ke Za Zhi 2022; 60:244-245. [PMID: 35240747 DOI: 10.3760/cma.j.cn112140-20210708-00565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- H L Xu
- Department of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - C Liu
- Department of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - M Yi
- Department of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - S M Chen
- Department of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - Y Yu
- Department of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - S X Liu
- Department of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - F Q Wen
- Department of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - X L Yuan
- Department of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen 518038, China
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Yao Y, Ma D, Xu Y, Yuan XL, Liang JJ, Chen SL, Jhanji V, Ng TK. Hydroxychloroquine treatment on SARS-CoV-2 receptor ACE2, TMPRSS2 and NRP1 expression in human primary pterygium and conjunctival cells. Exp Eye Res 2022; 214:108864. [PMID: 34826419 PMCID: PMC8610570 DOI: 10.1016/j.exer.2021.108864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 11/17/2021] [Accepted: 11/22/2021] [Indexed: 02/05/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the pathogen for coronavirus disease 2019 (COVID-19) pandemic. Its infection depends on the binding of spike protein to the host cell receptor angiotensin-converting enzyme 2 (ACE2), type II transmembrane serine protease (TMPRSS2) and neuropilin-1 (NRP1). Hydroxychloroquine has been applied as one of the COVID-19 treatment strategies. Here we aimed to evaluate hydroxychloroquine treatment on SARS-CoV-2 receptor expression in human primary pterygium and conjunctival cells and its potential influences. Expression of ACE2, TMPRSS2 and NRP1 proteins were found in the epithelial layer of both primary pterygium and conjunctiva tissues as well as in their isolated fibroblasts. High concentration of hydroxychloroquine treatment significantly reduced the viability of both primary pterygium and conjunctival cells. ACE2 protein expression was significantly decreased in both pterygium and conjunctival cells after hydroxychloroquine treatment. Hydroxychloroquine also reduced NRP1 protein expression in conjunctival cells. In contrast, TMPRSS2 protein expression showed slightly increased in conjunctival cells. Notably, ROS production and SOD2 expression was significantly elevated in both pterygium and conjunctival cells after hydroxychloroquine treatment. In summary, this study revealed the reduction of ACE2 and NRP1 expression by hydroxychloroquine in human primary pterygium and conjunctival fibroblasts; yet with the increase in TMPRSS2 expression and oxidative stress and decrease in cell viability. Implementation of hydroxychloroquine for COVID-19 treatment should be carefully considered with its potential side effects and in combination with TMPRSS2 inhibitor.
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Affiliation(s)
- Yao Yao
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Di Ma
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Yanxuan Xu
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Xiang-Ling Yuan
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Jia-Jian Liang
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Shao-Lang Chen
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Vishal Jhanji
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
- Department of Ophthalmology, UPMC Eye Center, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Tsz Kin Ng
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
Shantou University Medical College, Shantou, Guangdong, China
Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
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Tan S, Yao Y, Yang Q, Yuan XL, Cen LP, Ng TK. Diversified Treatment Options of Adult Stem Cells for Optic Neuropathies. Cell Transplant 2022; 31. [PMID: 36165292 PMCID: PMC9523835 DOI: 10.1177/09636897221123512] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 07/28/2022] [Accepted: 08/16/2022] [Indexed: 02/05/2023] Open
Abstract
Optic neuropathies refer to a group of ocular disorders with abnormalities or dysfunction of the optic nerve, sharing a common pathophysiology of retinal ganglion cell (RGC) death and axonal loss. RGCs, as the retinal neurons in the central nervous system, show limited capacity in regeneration or recovery upon diseases or after injuries. Critically, there is still no effective clinical treatment to cure most types of optic neuropathies. Recently, stem cell therapy was proposed as a potential treatment strategy for optic neuropathies. Adult stem cells, including mesenchymal stem cells and hematopoietic stem cells, have been applied in clinical trials based on their neuroprotective properties. In this article, the applications of adult stem cells on different types of optic neuropathies and the related mechanisms will be reviewed. Research updates on the strategies to enhance the neuroprotective effects of human adult stem cells will be summarized. This review article aims to enlighten the research scientists on the diversified functions of adult stem cells and consideration of adult stem cells as a potential treatment for optic neuropathies in future clinical practices.
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Affiliation(s)
- Shaoying Tan
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
- School of Optometry, The Hong Kong Polytechnic University, Kowloon, Hong Kong
- Research Centre for SHARP Vision, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Yao Yao
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
- Shantou University Medical College, Shantou, China
| | - Qichen Yang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong
| | - Xiang-Ling Yuan
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
- Shantou University Medical College, Shantou, China
| | - Ling-Ping Cen
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Tsz Kin Ng
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
- Shantou University Medical College, Shantou, China
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong
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Wang X, Liu Y, Huang JX, Lu P, Ba Y, Wu L, Bai YX, Zhang S, Feng JF, Cheng Y, Li J, Wen L, Yuan XL, Ma CW, Hu CH, Fan QX, Xu BH, Huang J. [Correlation between nUGT1A1 gene polymorphisms and adverse events of irinotecan plus S-1 for patients with recurrent or metastatic esophageal squamous cell carcinoma: a prospective, open-label, randomized controlled trial (ESWN 01)]. Zhonghua Zhong Liu Za Zhi 2021; 43:1177-1182. [PMID: 34794220 DOI: 10.3760/cma.j.cn112152-20191022-00678] [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 investigate the correlation between UGT1A1 polymorphisms and the irinotecan plus S-1 regimen-induced toxicities in Chinese advanced esophageal squamous cell carcinoma (ESCC) patients. Methods: A total of 46 recurrent or metastatic ESCC patients selected from ESWN 01 trial were randomly assigned to irinotecan plus S-1 group [intravenous infusion of irinotecan (160 mg/m(2)) on day 1 and oral S-1 (80-120 mg) on days 1-10, repeated every 14 days]. Peripheral venous blood at baseline was collected and genomic DNA was extracted. The genetic polymorphisms of UGT1A1*6 and UGT1A1*28 were analyzed by polymerase chain reaction (PCR) amplification. Irinotecan plus S-1 regimen-induced toxicities of patients with different UGT1A1 polymorphisms were observed. The correlation between UGT1A1 polymorphisms and the adverse effects was analyzed. Results: Among the 46 patients, the numbers of UGT1A1*6 wild type genotype (GG), mutant heterozygote (GA) and mutant homozygote (AA) were 30, 15 and 1, while those with UGT1A1*28 wild type genotype (TA6/6), mutant heterozygote (TA6/7) and mutant homozygote (TA7/7) were 36, 8 and 2, respectively. Only one patient with UGT1A1*6 AA genotype occurred grade 3 diarrhea, while one of the 2 patients with UGT1A1*28 TA7/7 genotype occurred grade 4 diarrhea. No neutropenia was observed in the patient with UGT1A1*6 AA genotype, however, both of the two patients with UGT1A1*28 TA7/7 genotype occurred grade 3-4 neutropenia. Patients with UGT1A1*28 genetic polymorphism (TA 6/7 or TA7/7) had a higher response rate compared with wild-type TA6/6 carriers. (55.6% versus 26.5%). Conclusions: The homozygous genotype of UGT1A1*6 AA and UGT1A1*28 TA7/7 are rare (<5%) in Chinese ESCC population. Not all homozygous AA and TA7/7 carriers occur severe dose limited toxicities (DLT) when treated with irinotecan (160 mg/m(2)) plus S-1 regimen for 2 weeks. However, it's still necessary torigorously observe the occurrence of severe diarrhea and neutropenia in patients with UGT1A1*6 AA and UGT1A1*28 TA7/7 and adjust the dose timely.
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Affiliation(s)
- X Wang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China the first author currently affiliated to: Daycare Center, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Y Liu
- Department of Medical Oncology, Henan Cancer Hospital, Zhengzhou 450008, China
| | - J X Huang
- Departmentof Medical Oncology, Taizhou People's Hospital, Taizhou 225300, China
| | - P Lu
- Department of Medical Oncology, the First Affiliated Hospital of Xinxiang Medical University, Xinxiang 453100, China
| | - Y Ba
- Department of Medical Oncology, Tianjin Cancer Hospital, Tianjin 300060, China
| | - L Wu
- Departmentof Medical Oncology, Hunan Cancer Hospital, Changsha 410006, China
| | - Y X Bai
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin 150040, China
| | - S Zhang
- Department of Medical Oncology, Shandong Cancer Hospital, Jinan 250117, China
| | - J F Feng
- Department of Medical Oncology, Jiangsu Cancer Hospital, Nanjing 210009, China
| | - Y Cheng
- Department of Medical Oncology, Jilin Cancer Hospital, Changchun 130012, China
| | - J Li
- Department of Radiotherapy, Shanxi Cancer Hospital, Taiyuan 030013, China
| | - L Wen
- Department of Medical Oncology, Shanxi Cancer Hospital, Taiyuan 030013, China
| | - X L Yuan
- Department of Medical Oncology, Tongji Hospital, Wuhan 430030, China
| | - C W Ma
- Department of Medical Oncology, Chifeng Municipal Hospital, Chifeng 024000, China
| | - C H Hu
- Department of Oncology, the Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Q X Fan
- Department of Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - B H Xu
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Huang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Wang KD, Yuan XL, Zhang YR, Hu JJ, Cao FQ, Chen YS. [Identification of Synthetic Cannabinoid New Psychoactive Substances 4F-MDMB-BUTINACA and MDMB-4en-PINACA]. Fa Yi Xue Za Zhi 2021; 37:505-510. [PMID: 34726003 DOI: 10.12116/j.issn.1004-5619.2020.300501] [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] [Received: 05/15/2020] [Indexed: 11/30/2022]
Abstract
Abstract Objective To establish a method that combines a series of techniques including Fourier transform infrared spectrum (FTIR), gas chromatography-mass spectrometry (GC-MS), high resolution mass spectrometry and nuclear magnetic resonance spectroscopy (NMR) for identification of unknown substances. Methods The unknown samples (off-white powder and yellow crystal) seized in the actual cases were detected by FTIR, GC-MS (methanol as solvent), high resolution mass spectrometry (methanol as solvent) and NMR (deuterated methanol as solvent). Results The mass spectrum characteristic ions m/z of the main components in the samples measured by GC-MS were 219 (base peak), 363, 307, 304, 275, 145, 131 and 213 (base peak), 357, 301, 298, 269, 185, 171, 145 and 131, respectively. The accurate mass numbers [M+H]+ measured by high resolution mass spectrometry were 364.203 61 and 358.212 34, respectively. The unknown samples were identified as synthetic cannabinoid new psychoactive substances 4F-MDMB-BUTINACA and MDMB-4en-PINACA after data consultation and database retrieval and comparison, combined with infrared analysis and mass spectrometry data analysis, and their structures were confirmed by 1H-NMR. Conclusion The established multi-technology joint identification method can be used to identify 4F-MDMB-BUTINACA and MDMB-4en-PINACA in unknown samples. This method is fast, convenient, accurate, reliable and practical, and can provide reference for the identification of cases involving such substances in the future.
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Affiliation(s)
- K D Wang
- Institute of Forensic Science, Shanghai Public Security Bureau, Shanghai 200083, China
| | - X L Yuan
- Shanghai Research Institute of Criminal Science and Technology, Shanghai 200083, China
| | - Y R Zhang
- Institute of Forensic Science, Shanghai Public Security Bureau, Shanghai 200083, China
| | - J J Hu
- Shanghai Research Institute of Criminal Science and Technology, Shanghai 200083, China
| | - F Q Cao
- Shanghai Research Institute of Criminal Science and Technology, Shanghai 200083, China
| | - Y S Chen
- Institute of Forensic Science, Shanghai Public Security Bureau, Shanghai 200083, China
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11
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Ma RJ, Yuan XL, Jiang L, Yang SW, Yang J, Wang Z, Zhang P, Zhang L, Shang BJ, Cheng LN, Zhang Y, Zhu ZM. [Effect of triple-induction regimen including all-trans retinoic acid, arsenic trioxide plus anthracyclines for adults with non-high-risk acute promyelocytic leukemia]. Zhonghua Yi Xue Za Zhi 2021; 101:2387-2391. [PMID: 34404132 DOI: 10.3760/cma.j.cn112137-20201108-03035] [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: 11/05/2022]
Abstract
Objective: To analyze the effect of triple-induction regimen including all-trans retinoic acid(ATRA), arsenic trioxide(ATO) plus anthracyclines and double-induction regimen including ATRA and ATO for adults with non-high-risk acute promyelocytic leukemia(APL). Methods: The clinical data of adult patients with non-high-risk APL who were first diagnosed and admitted to the Henan Provincial People's Hospital from January 2009 to December 2019 were retrospectively analyzed. All patients were divided into triple-induction group and double-induction group according to the treatment. The general data of patients, blood routine, coagulation function changes and blood transfusions during the induction period were collected, and the complete remission rate, early mortality and prognosis of two groups were analyzed. Results: A total of 164 patients were enrolled, including 86 males and 78 females, and the M(Q1,Q3) of their age was 41(18, 70) years. Among them, 75 were in triple-induction group and 89 in double-induction group. The white blood cell(WBC) counts of triple-induction group on day 7th and 14th after induction were (9.49±6.10)×109/L and (5.43±3.97)×109/L, while those in double-induction group were (15.17±17.06)×109/L and (13.37±12.59)×109/L, the differences were statistically significant (both P<0.05). In addition, the peak of WBC in the triple-induction group was lower than that in the double-induction group [13.8(6.3,89.7)×109/L vs 19.2(3.8,112.8)×109/L, P=0.019]. On day 7th after induction, the platelet(PLT) counts in the triple-induction group was lower than that in the double-induction group [27(11,147)×109/L vs 45(8, 183)×109/L, P=0.014]. However, the difference was not statistically significant in PLT counts between the two groups on day 14th, 21st and 28th, or in PLT transfusions during induction (all P>0.05). After treatment, it was observed only in a few patients of two groups that the prothrombin time(PT) elongation ≥3 s and/or activated partial thromboplastin time(APTT) elongation ≥10 s, and the difference was not statistically significant (all P>0.05). The incidence of induced differentiation syndrome in the triple-induction group was lower than that in the double-induction group (2.7% vs 12.4%, P=0.022) The early mortality rate was lower than that in the double-induction group (1.3% vs 5.6%), but the difference was not statistically significant (P>0.05). There were no statistically significant differences in the early complete remission rate, genetic remission rate, molecular remission rate, relapse rate, overall survival (OS) rate and disease-free survival (DFS) rate between the two groups. Conclusion: For adults with non-high-risk APL, the triple-induction therapy can reduce the counts and peaks of WBC, and reduce the incidence of induced differentiation syndrome.
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Affiliation(s)
- R J Ma
- Department of Hematology, Henan Provincial People's Hospital,Zhengzhou 450003, China
| | - X L Yuan
- Department of Hematology, Henan Provincial People's Hospital,Zhengzhou 450003, China
| | - L Jiang
- Department of Hematology, Henan Provincial People's Hospital,Zhengzhou 450003, China
| | - S W Yang
- Institute of Hematology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - J Yang
- Department of Hematology, Henan Provincial People's Hospital,Zhengzhou 450003, China
| | - Z Wang
- Department of Hematology, Henan Provincial People's Hospital,Zhengzhou 450003, China
| | - P Zhang
- Department of Hematology, Henan Provincial People's Hospital,Zhengzhou 450003, China
| | - L Zhang
- Institute of Hematology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - B J Shang
- Institute of Hematology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - L N Cheng
- Institute of Hematology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Y Zhang
- Department of Hematology, Henan Provincial People's Hospital,Zhengzhou 450003, China
| | - Z M Zhu
- Institute of Hematology, Henan Provincial People's Hospital, Zhengzhou 450003, China
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Yuan XL, Zhang R, Zheng Y, Sun L, Wang G, Chen S, Xu Y, Chen SL, Qiu K, Ng TK. Corneal curvature-associated MTOR variant differentiates mild myopia from high myopia in Han Chinese population. Ophthalmic Genet 2021; 42:446-457. [PMID: 33979260 DOI: 10.1080/13816810.2021.1923035] [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: 12/11/2020] [Revised: 02/27/2021] [Accepted: 04/18/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Myopia is the most prevalent ocular disorder in the world, and corneal parameters have been regarded as key ocular biometric parameters determining the refractive status. Here, we aimed to determine the association of genome-wide association study-identified corneal curvature (CC)-related gene variants with different severity of myopia and ocular biometric parameters in Chinese population. METHODS Total 2,101 unrelated Han Chinese subjects were recruited, including 1,649 myopia and 452 control subjects. Five previously reported CC-associated gene variants (PDGFRA, MTOR, WNT7B, CMPK1 and RBP3) were genotyped by TaqMan assay, and their association with different myopia severity and ocular biometric parameters were evaluated. RESULTS Joint additive effect analysis showed that MTOR rs74225573 paired with PDGFRA rs2114039 (P = .009, odds ratio (OR) = 4.91) or CMPK1 rs17103186 (P = .002, OR = 13.03) were significantly associated with higher risk in mild myopia. Critically, mild myopia subjects had significantly higher frequency in MTOR rs74225573 C allele than high myopia subjects (P = .003), especially in male subjects (P = .001, OR = 0.49). High myopia subjects carrying MTOR rs74225573 C allele have significant flatter CC (P = .035) and longer corneal radius (P = .044) than those carrying TT genotype. CONCLUSION This study revealed that male high myopia subjects are more prone to carry CC-related MTOR rs74225573 T allele, whereas mild myopia subjects are prone to carry the C allele. MTOR rs7422573 variant could be a genetic marker to differentiate mild from high myopia in risk assessment. ABBREVIATIONS ACD: anterior chamber depth; AL: axial length; AL/CR: axial length/corneal radius ratio; ANOVA: analysis of variance; CC: corneal curvature; CCT: central corneal thickness; C.I.: confidence interval; CMPK1: cytidine/uridine monophosphate kinase 1; CR: corneal radius; D: diopter; GWAS: genome-wide association studies; HWE: Hardy-Weinberg equilibrium; LT: lens thickness; MIPEP: mitochondrial intermediate peptidase; MTOR: mechanistic target of rapamycin kinase; OR: odds ratio; PDGFRA: platelet-derived growth factor receptor-α; RBP3: retinol-binding protein 3; SD: standard deviation; SE: spherical equivalence; SNTB1: syntrophin beta 1; VCD: vitreous chamber depth; VIPR2: vasoactive intestinal peptide receptor 2; WNT7B: wingless/integrated family member 7B.
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Affiliation(s)
- Xiang-Ling Yuan
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Riping Zhang
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Yuqian Zheng
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Lixia Sun
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Geng Wang
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Shaowan Chen
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Yanxuan Xu
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Shao-Lang Chen
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Kunliang Qiu
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Tsz Kin Ng
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
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Nie L, Liu XY, Ma RJ, Yuan XL, Jiang L, Yang J, Hu AX, Li Z, Zhu ZM. [The expression and prognostic value of PD-1, TIM-3, LAG-3 and BTLA in extranodal NK/T cell lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:598-602. [PMID: 34455749 PMCID: PMC8408487 DOI: 10.3760/cma.j.issn.0253-2727.2021.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- L Nie
- Department of Hematology, Henan Provincial Hospital, Zhengzhou 450003, China Liu Xiaoyin is now working at the First People's Hospital of Pingdingshan, Pingdingshan 467099, China
| | - X Y Liu
- Department of Hematology, Henan Provincial Hospital, Zhengzhou 450003, China
| | - R J Ma
- Department of Hematology, Henan Provincial Hospital, Zhengzhou 450003, China
| | - X L Yuan
- Department of Hematology, Henan Provincial Hospital, Zhengzhou 450003, China
| | - L Jiang
- Department of Hematology, Henan Provincial Hospital, Zhengzhou 450003, China
| | - J Yang
- Department of Hematology, Henan Provincial Hospital, Zhengzhou 450003, China
| | - A X Hu
- Department of Pathology, Henan Provincial Hospital, Zhengzhou 450003, China
| | - Z Li
- Department of Pathology, Henan Provincial Hospital, Zhengzhou 450003, China
| | - Z M Zhu
- Department of Hematology, Henan Provincial Hospital, Zhengzhou 450003, China Institute of Hematology, Henan Provincial Hospital, Zhengzhou 450003, China Nie Lu is now working at Gansu Provincial Hospital, Lanzhou 730000, China
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Cen LP, Ng TK, Liang JJ, Xu C, Zhuang X, Liu YF, Chen SL, Xu Y, Yang Q, Yuan XL, Qin YJ, Chan SO, Chen H, Zhang M, Schally AV, Pang CP. Agonist of growth hormone-releasing hormone enhances retinal ganglion cell protection induced by macrophages after optic nerve injury. Proc Natl Acad Sci U S A 2021; 118:e1920834118. [PMID: 34244423 PMCID: PMC8285901 DOI: 10.1073/pnas.1920834118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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] [Indexed: 02/05/2023] Open
Abstract
Optic neuropathies are leading causes of irreversible visual impairment and blindness, currently affecting more than 100 million people worldwide. Glaucoma is a group of optic neuropathies attributed to progressive degeneration of retinal ganglion cells (RGCs). We have previously demonstrated an increase in survival of RGCs by the activation of macrophages, whereas the inhibition of macrophages was involved in the alleviation on endotoxin-induced inflammation by antagonist of growth hormone-releasing hormone (GHRH). Herein, we hypothesized that GHRH receptor (GHRH-R) signaling could be involved in the survival of RGCs mediated by inflammation. We found the expression of GHRH-R in RGCs of adult rat retina. After optic nerve crush, subcutaneous application of GHRH agonist MR-409 or antagonist MIA-602 promoted the survival of RGCs. Both the GHRH agonist and antagonist increased the phosphorylation of Akt in the retina, but only agonist MR-409 promoted microglia activation in the retina. The antagonist MIA-602 reduced significantly the expression of inflammation-related genes Il1b, Il6, and Tnf Moreover, agonist MR-409 further enhanced the promotion of RGC survival by lens injury or zymosan-induced macrophage activation, whereas antagonist MIA-602 attenuated the enhancement in RGC survival. Our findings reveal the protective effect of agonistic analogs of GHRH on RGCs in rats after optic nerve injury and its additive effect to macrophage activation, indicating a therapeutic potential of GHRH agonists for the protection of RGCs against optic neuropathies especially in glaucoma.
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Affiliation(s)
- Ling-Ping Cen
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou University Medical College, 515041 Shantou, China
| | - Tsz Kin Ng
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou University Medical College, 515041 Shantou, China
- Shantou University Medical College, 515041 Shantou, China
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Jia-Jian Liang
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou University Medical College, 515041 Shantou, China
| | - Ciyan Xu
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou University Medical College, 515041 Shantou, China
| | - Xi Zhuang
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou University Medical College, 515041 Shantou, China
| | - Yu-Fen Liu
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou University Medical College, 515041 Shantou, China
- Shantou University Medical College, 515041 Shantou, China
| | - Shao-Lang Chen
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou University Medical College, 515041 Shantou, China
| | - Yanxuan Xu
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou University Medical College, 515041 Shantou, China
| | - Qichen Yang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Xiang-Ling Yuan
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou University Medical College, 515041 Shantou, China
- Shantou University Medical College, 515041 Shantou, China
| | - Yong Jie Qin
- Department of Ophthalmology, Guangdong Eye Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, 510080 Guangzhou, China
| | - Sun On Chan
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Haoyu Chen
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou University Medical College, 515041 Shantou, China
| | - Mingzhi Zhang
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou University Medical College, 515041 Shantou, China
| | - Andrew V Schally
- Department of Pathology, Miller School of Medicine, University of Miami, Miami, FL 33136;
- Division of Medical Oncology, Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL 33136
- Division of Endocrinology, Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL 33136
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136
- Cancer Institute, Veterans Affairs Medical Center, Miami, FL 33125
| | - Chi Pui Pang
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou University Medical College, 515041 Shantou, China;
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
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Yang Q, Leong SA, Chan KP, Yuan XL, Ng TK. Complex effect of continuous curcumin exposure on human bone marrow-derived mesenchymal stem cell regenerative properties through matrix metalloproteinase regulation. Basic Clin Pharmacol Toxicol 2021; 128:141-153. [PMID: 32777138 DOI: 10.1111/bcpt.13477] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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] [Received: 04/14/2020] [Revised: 07/13/2020] [Accepted: 08/04/2020] [Indexed: 02/05/2023]
Abstract
Curcumin has been reported to be beneficial for cancers, cardiovascular and neurodegenerative diseases, based on its anti-oxidative, anti-inflammation, anti-tumorigenic and neuroprotective properties. With its high-dose application, curcumin toxicity to systemic tissues is a reasonable concern. Here, we report the responses of human bone marrow-derived mesenchymal stem cells (hBM-MSCs) to continuous curcumin exposure. hBM-MSCs were treated with 0.01-100 μmol/L curcumin continuously in vitro for 7 days. 25 μmol/L curcumin or above significantly attenuated hBM-MSC maintenance, whereas 10 μmol/L curcumin reduced hBM-MSC proliferation and hindered their migration with increasing cell apoptosis. Besides, 5 μmol/L curcumin treatment inhibited hBM-MSC adipogenic differentiation, but enhanced osteogenic differentiation, which depended on matrix metalloproteinase (MMP)-13 expression and activity. Furthermore, curcumin treatment reduced MMP1 expression but up-regulated the immunomodulatory gene IDO1 expression. In summary, this study revealed the complex effects of continuous curcumin exposure on hBM-MSC maintenance and regenerative properties through MMP regulation. Given the complex effects of curcumin, its use for biomedical purposes should be carefully considered in treatment length and dosage.
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Affiliation(s)
- Qichen Yang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong
| | - Samantha Antonio Leong
- Department of Biomedical Engineering, The Chinese University of Hong Kong, New Territories, Hong Kong
| | - Kwok Ping Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong
| | - Xiang-Ling Yuan
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Tsz Kin Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
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16
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Liu XY, Yuan XL, Ma RJ, Xu H, Yang SW, Nie L, Zhang L, Hu AX, Li Z, Zhu ZM. [Expression of PD-1, TIM-3, LAG-3 and BTLA in diffuse large B-cell lymphoma and its effect on prognosis]. Zhonghua Yi Xue Za Zhi 2020; 100:2846-2853. [PMID: 32988145 DOI: 10.3760/cma.j.cn112137-20200107-00045] [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] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Objective: To investigate the expression levels of programmed death protein 1 (PD-1)、T cell immunoglobulin domain and mucin domain 3(TIM-3)、lymphocyte activating gene 3 (LAG-3) and B and T lymphocyte attenuator (BTLA) in Diffuse large B-cell lymphoma, not otherwise specified (DLBCL, NOS) and their effects on prognosis. Methods: The paraffin specimens of 30 patients with DLBCL, NOS newly diagnosed in People's Hospital of Zhengzhou University were stained with immunohistochemistry. The effects of single positive and co-expression of the above molecules on progression-free survival (PFS) phase and overall survival (OS) phase were analyzed. Results: There was no significant difference in prognosis between PD-1, TIM-3, LAG3, BTLA single positive group and single negative group. The median PFS phase of PD-1 and TIM-3 co-expression group and TIM3 and BTLA co-expression group were 26 and 24 months respectively, which were both lower than the 54 months (P=0.021) and 47 months (P=0.037) in non-co-expression group. The median PFS phase and OS phase of PD-1, TIM-3 and LAG-3 co-expression group were 17 and 25 months respectively, which were significantly lower than the 41 months (P=0.024) and 60 months (P=0.015) of non-co-expression group. The median PFS phase and OS phase of PD-1, TIM-3, LAG-3 and BTLA co-expression group were 18 and 26 months respectively, which were significantly lower than the 40 months (P=0.038) and 57 months (P=0.041) of non-co-expression group. Conclusions: In patients with DLBCL, NOS, those with PD-1 and TIM-3 co-expression as well as those with TIM-3 and BTLA co-expression have poor PFS phase. Patients with PD-1, TIM-3 and LAG-3 co-expression and patients with PD-1, TIM-3, LAG-3 and BTLA co-expression have poor PFS and OS phase.
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Affiliation(s)
- X Y Liu
- Department of Hematology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - X L Yuan
- Department of Hematology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - R J Ma
- Department of Hematology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - H Xu
- Department of Hematology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - S W Yang
- Institute of Hematology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - L Nie
- Department of Hematology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - L Zhang
- Institute of Hematology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - A X Hu
- Department of Pathology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Z Li
- Department of Pathology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Z M Zhu
- Institute of Hematology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
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Ma D, Chen CB, Jhanji V, Xu C, Yuan XL, Liang JJ, Huang Y, Cen LP, Ng TK. Expression of SARS-CoV-2 receptor ACE2 and TMPRSS2 in human primary conjunctival and pterygium cell lines and in mouse cornea. Eye (Lond) 2020; 34:1212-1219. [PMID: 32382146 PMCID: PMC7205026 DOI: 10.1038/s41433-020-0939-4] [Citation(s) in RCA: 154] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 02/05/2023] Open
Abstract
PURPOSE To determine the expressions of SARS-CoV-2 receptor angiotensin-converting enzyme 2 (ACE2) and type II transmembrane serine protease (TMPRSS2) genes in human and mouse ocular cells and comparison to other tissue cells. METHODS Human conjunctiva and primary pterygium tissues were collected from pterygium patients who underwent surgery. The expression of ACE2 and TMPRSS2 genes was determined in human primary conjunctival and pterygium cells, human ocular and other tissue cell lines, mesenchymal stem cells as well as mouse ocular and other tissues by reverse transcription-polymerase chain reaction (RT-PCR) and SYBR green PCR. RESULTS RT-PCR analysis showed consistent expression by 2 ACE2 gene primers in 2 out of 3 human conjunctival cells and pterygium cell lines. Expression by 2 TMPRSS2 gene primers could only be found in 1 out of 3 pterygium cell lines, but not in any conjunctival cells. Compared with the lung A549 cells, similar expression was noted in conjunctival and pterygium cells. In addition, mouse cornea had comparable expression of Tmprss2 gene and lower but prominent Ace2 gene expression compared with the lung tissue. CONCLUSION Considering the necessity of both ACE2 and TMPRSS2 for SARS-CoV-2 infection, our results suggest that conjunctiva would be less likely to be infected by SARS-CoV-2, whereas pterygium possesses some possibility of SARS-CoV-2 infection. With high and consistent expression of Ace2 and Tmprss2 in cornea, cornea rather than conjunctiva has higher potential to be infected by SARS-CoV-2. Precaution is necessary to prevent possible SARS-CoV-2 infection through ocular surface in clinical practice.
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Affiliation(s)
- Di Ma
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Chong-Bo Chen
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Vishal Jhanji
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong
- Department of Ophthalmology, UPMC Eye Center, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Shantou University Medical College, Shantou, Guangdong, China
| | - Ciyan Xu
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Xiang-Ling Yuan
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Jia-Jian Liang
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Yuqiang Huang
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Ling-Ping Cen
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Tsz Kin Ng
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, Guangdong, China.
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong.
- Shantou University Medical College, Shantou, Guangdong, China.
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Zhou F, Zhu ZM, Jiang L, Yuan XL, Zhang L, Wu CY, Cheng W, Li YL. [Genetic characteristics and prognosis of mixed phenotype acute leukemia]. Zhonghua Xue Ye Xue Za Zhi 2020; 40:602-604. [PMID: 32397026 PMCID: PMC7364893 DOI: 10.3760/cma.j.issn.0253-2727.2019.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- F Zhou
- Department of Hematology, Zhengzhou University People's Hospital, Institute of Hematology, Henan Province People's Hospital, Henan Key Laboratory of Stem Cell Regulation and Differentiation, Zhengzhou 450003, China
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Shang BJ, Yang SW, Lei PC, Ma RJ, He XD, Yuan XL, Jiang L, Li YL, Dong XY, Wang Z, Zhang L, Zhu ZM. [Clinical study on factor Ⅷ inhibitor in children with hemophilia A]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:138-142. [PMID: 32135631 PMCID: PMC7357942 DOI: 10.3760/cma.j.issn.0253-2727.2020.02.010] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
目的 探讨血友病A(HA)患儿凝血因子Ⅷ(FⅧ)抑制物产生的相关因素及抑制物产生前后出血与关节病表现的差异。 方法 对2015年1月至2018年8月河南省血友病管理中心登记收治的381例16岁以下HA患儿进行回顾性分析。 结果 381例HA患儿中,轻型116例(30.4%),中间型196例(51.4%),重型69例(18.1%)。FⅧ抑制物阳性患者54例(14.2%),高滴度、低滴度分别为22、32例。血友病家族史与FⅧ抑制物阳性相关[P<0.001,OR=3.299(95%CI 1.743~5.983)];高强度暴露与FⅧ抑制物的产生相关[P=0.002,OR=2.587(95%CI 1.414~4.731)]。高强度暴露与高滴度FⅧ抑制物产生相关[P=0.001,OR=8.689(95%CI 2.464~30.638)]。54例HA患者产生抑制物后,总体关节年出血率、创伤性年出血率增加(z=−3.440,P=0.001;z=−2.232,P=0.026),而非关节年出血率、自发性年出血率与抑制物产生前比较差异无统计学意义(z=−1.342,P=0.180;z=−1.414,P=0.157)。关节超声评分较产生抑制物前差异无统计学意义(z=−0.632,P=0.527)。 结论 血友病家族史、高强度暴露可增加HA患儿发生FⅧ抑制物的风险,且高强度暴露可增加HA患者出现高滴度抑制物的风险。
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Affiliation(s)
- B J Shang
- Institute of Hematology of Henan Provincial People's Hospital, 450003, China; Henan Key laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China
| | - S W Yang
- Institute of Hematology of Henan Provincial People's Hospital, 450003, China; Henan Key laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China; Department of Hematology, Henan Provincial People' s Hospital/People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - P C Lei
- Department of Hematology, Henan Provincial People' s Hospital/People's Hospital of Zhengzhou University, Zhengzhou 450003, China; Henan Provincial Registration Management Center of Hemophilia, Zhengzhou 450003, China
| | - R J Ma
- Department of Hematology, Henan Provincial People' s Hospital/People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - X D He
- Department of Hematology, Henan Provincial People' s Hospital/People's Hospital of Zhengzhou University, Zhengzhou 450003, China; Henan Provincial Registration Management Center of Hemophilia, Zhengzhou 450003, China
| | - X L Yuan
- Department of Hematology, Henan Provincial People' s Hospital/People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - L Jiang
- Department of Hematology, Henan Provincial People' s Hospital/People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Y L Li
- Institute of Hematology of Henan Provincial People's Hospital, 450003, China; Henan Key laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China
| | - X Y Dong
- Institute of Hematology of Henan Provincial People's Hospital, 450003, China; Henan Key laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China
| | - Z Wang
- Department of Hematology, Henan Provincial People' s Hospital/People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - L Zhang
- Institute of Hematology of Henan Provincial People's Hospital, 450003, China; Henan Key laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China
| | - Z M Zhu
- Institute of Hematology of Henan Provincial People's Hospital, 450003, China; Henan Key laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China
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Yuan XL, Wang LF, Ma RJ, Jiang L, Zheng MQ, Sun K, Zhu ZM. [The development of NK/T-cell lymphoma secondary to Hodgkin's lymphoma with positive Epstein-Barr virus: a case report]. Zhonghua Xue Ye Xue Za Zhi 2020; 40:1053-1054. [PMID: 32023743 PMCID: PMC7342682 DOI: 10.3760/cma.j.issn.0253-2727.2019.12.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- X L Yuan
- Department of Hematology, Henan Province People' Hospital, Zhengzhou 450003, China
| | - L F Wang
- Department of Hematology, Henan Province People' Hospital, Zhengzhou 450003, China
| | - R J Ma
- Department of Hematology, Henan Province People' Hospital, Zhengzhou 450003, China
| | - L Jiang
- Department of Hematology, Henan Province People' Hospital, Zhengzhou 450003, China
| | - M Q Zheng
- Department of Hematology, Henan Province People' Hospital, Zhengzhou 450003, China
| | - K Sun
- Department of Hematology, Henan Province People' Hospital, Zhengzhou 450003, China
| | - Z M Zhu
- Department of Hematology, Henan Province People' Hospital, Zhengzhou 450003, China
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Wang KD, Cao FQ, Jiang X, Chen H, Yuan XL, Chen YS, Hu JJ. Identification of the New Psychoactive Substance Dibutylone. Fa Yi Xue Za Zhi 2020; 35:682-686. [PMID: 31970954 DOI: 10.12116/j.issn.1004-5619.2019.06.007] [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] [Received: 12/06/2018] [Indexed: 11/30/2022]
Abstract
Abstract Objective To establish a method to identify unknown samples based on combined use of gas chromatography-mass spectrometry (GC-MS), high resolution mass spectrometry (HRMS) and nuclear magnetic resonance spectrum (NMR) technique. Methods The unknown samples were dissolved in methanol solution containing internal standard SKF525A and detected by GC-MS and HRMS. The mixed samples were separated and purified by silica gel column chromatography, and then dissolved in methanol-d4 solution for structural analysis of 1H nuclear magnetic resonance spectroscopy (1H NMR). Results The characteristic fragment ions (m/z) were 86.1 (base peak), 71.2, 121.1, and 149.0, and the accurate mass number of molecular ion peak was measured by HRMS to be 236.128 89. By combined use of data analysis and database comparison, a new psychoactive substance of the cathinone class, Dibutylone, was detected in the sample, and the sample also contained a small amount of caffeine. The sample was purified, then identified using 1H NMR, and was further confirmed to be Dibutylone. In addition, the GC-MS retention time and characteristic fragment ions of the main components of the sample were consistent with those of Dibutylone reference material. Conclusion The method established in this study can be used for the identification of Dibutylone in mixed samples.
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Affiliation(s)
- K D Wang
- Shanghai Key Laboratory of Crime Scene Evidence, Institute of Forensic Science, Shanghai Public Security Bureau, Shanghai 200083, China
| | - F Q Cao
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, Shanghai 200083, China
| | - X Jiang
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, Shanghai 200083, China
| | - H Chen
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, Shanghai 200083, China
| | - X L Yuan
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, Shanghai 200083, China
| | - Y S Chen
- Shanghai Key Laboratory of Crime Scene Evidence, Institute of Forensic Science, Shanghai Public Security Bureau, Shanghai 200083, China
| | - J J Hu
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, Shanghai 200083, China
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Wang HP, Li CX, Dai QX, Jiang ZX, Yuan XL, Zhou JM. [Study on the influence of health belief model on the compliance of medical staff with sharp injury protection behavior]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 37:910-913. [PMID: 31937031 DOI: 10.3760/cma.j.issn.1001-9391.2019.12.008] [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 explore the effects of the intervention based on the theoretical framework of Health Belief Model on improving sharp injury protection behavior compliance of medical staffs, in order to provide some references for energetically developing blood-borne occupational exposure protection intervention in the region. Methods: According to the inclusion criteria, 178 medical staffs were selected, implemented intervention of the theory of health belief model. Methods included diversity training, experiencing operation, filed observation and supervision and so on, strengthened intervention after 1 month, evaluated the intervention effect after 3 months, used questionnaires and field observation to evaluate the effect before and after the intervention. Results: the scores of security behavior compliance were higher before intervention and there was significant difference (P<0.05) . Observed that, after the intervention the incidence of unsafe behavior in medical personnel dropped from 29.1% to 13.2%, the difference was statistically significant (P<0.05) . Conclusion: The intervenion of the theory of health belief model can strengthen sharp injury protection belief of medical personnels, improve behavior compliance, reduces the occurrence of sharp injury.
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Affiliation(s)
- H P Wang
- Nursing Department of Affiliated Hospital of Zunyi Medical College, Zunyi 563003, China
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Nie L, Yuan XL, Liu XY, Jiang L, Ma RJ, Yang SW, Zhu ZM. [Chemotherapy bridged hematopoietic stem cell transplantation for the treatment of interdigitating dendritic cell sarcoma: a case report and literature review]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:771-773. [PMID: 31648482 PMCID: PMC7342445 DOI: 10.3760/cma.j.issn.0253-2727.2019.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Indexed: 11/05/2022]
Affiliation(s)
- L Nie
- Department of Hematology, People's Hospital of Zhengzhou University, Institute of Hematology, People's Hospital of Henan Provincial, Henan Key laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China
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Wang F, Wei XL, Wang FH, Xu N, Shen L, Dai GH, Yuan XL, Chen Y, Yang SJ, Shi JH, Hu XC, Lin XY, Zhang QY, Feng JF, Ba Y, Liu YP, Li W, Shu YQ, Jiang Y, Li Q, Wang JW, Wu H, Feng H, Yao S, Xu RH. Safety, efficacy and tumor mutational burden as a biomarker of overall survival benefit in chemo-refractory gastric cancer treated with toripalimab, a PD-1 antibody in phase Ib/II clinical trial NCT02915432. Ann Oncol 2019; 30:1479-1486. [PMID: 31236579 PMCID: PMC6771223 DOI: 10.1093/annonc/mdz197] [Citation(s) in RCA: 307] [Impact Index Per Article: 61.4] [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] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND High tumor mutational burden (TMB-H) is correlated with enhanced objective response rate (ORR) and progression-free survival (PFS) for certain cancers receiving immunotherapy. This study aimed to investigate the safety and efficacy of toripalimab, a humanized programmed death-1 (PD-1) antibody, in advanced gastric cancer (AGC), and the predictive survival benefit of TMB and PD-L1. PATIENTS AND METHODS We reported on the AGC cohort of phase Ib/II trial evaluating the safety and activity of toripalimab in patients with AGC, oesophageal squamous cell carcinoma, nasopharyngeal carcinoma and head and neck squamous cell carcinoma. In cohort 1, 58 chemo-refractory AGC patients received toripalimab (3 mg/kg d1, Q2W) as a monotherapy. In cohort 2, 18 chemotherapy-naive AGC patients received toripalimab (360 mg d1, Q3W) with oxaliplatin 130 mg/m2 qd, d1, capecitabine 1000 mg/m2 b.i.d., d1-d14, Q3W as first-line treatment. Primary end point was ORR. Biomarkers such as PD-L1 and TMB were evaluated for correlation with clinical efficacy. RESULTS In cohort 1, the ORR was 12.1% and the disease control rate (DCR) was 39.7%. Median PFS was 1.9 months and median OS was 4.8 months. The TMB-H group showed significant superior OS than the TMB-L group [14.6 versus 4.0 months, HR = 0.48 (96% CI 0.24-0.96), P = 0.038], while PD-L1 overexpression did not correlate with significant survival benefit. A 77.6% of patients experienced at least one treatment-related adverse event (TRAE), and 22.4% of patients experienced a grade 3 or higher TRAE. In cohort 2, the ORR was 66.7% and the DCR was 88.9%. A 94.4% of patients experienced at least one TRAE and 38.9% of patients experienced grade 3 or higher TRAEs. CONCLUSIONS Toripalimab has demonstrated a manageable safety profile and promising antitumor activity in AGC patients, especially in combination with XELOX. High TMB may be a predictive marker for OS of AGC patients receiving toripalimab as a single agent. TRIAL REGISTRATION ClinicalTrials.gov NCT02915432.
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Affiliation(s)
- F Wang
- State Key Laboratory of Oncology in South China, Department of Medical Oncology, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou
| | - X L Wei
- State Key Laboratory of Oncology in South China, Department of Medical Oncology, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou
| | - F H Wang
- State Key Laboratory of Oncology in South China, Department of Medical Oncology, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou
| | - N Xu
- Department of Medical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou
| | - L Shen
- Laboratory of Carcinogenesis & Translational Research for the Ministry of National Education, Department of GI Oncology, Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing
| | - G H Dai
- Department of Medical Oncology, Chinese PLA General Hospital & Chinese PLA Medical Academy, Beijing
| | - X L Yuan
- Department of Oncology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan
| | - Y Chen
- The State Key Laboratory of Biotherapy, Department of Abdominal Cancer, West China Medical School, Cancer Center, West China Hospital, Sichuan University, Chengdu
| | - S J Yang
- Department of Internal Medicine, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou
| | - J H Shi
- Department of Medical Oncology, Linyi Cancer Hospital, Linyi
| | - X C Hu
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai
| | - X Y Lin
- Department of Medical Oncology, Fujian Medical University Union Hospital, Fuzhou
| | - Q Y Zhang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin
| | - J F Feng
- Department of Oncology, Nanjing Medical University Affiliated Cancer Hospital, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing
| | - Y Ba
- Department of Gastrointestinal Oncology, Tianjin Cancer Hospital, Tianjin
| | - Y P Liu
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang
| | - W Li
- Department of Medical Oncology, The First Hospital of Jilin University, Changchun
| | - Y Q Shu
- Department of Oncology, Jiangsu Provincial Hospital, Nanjing
| | - Y Jiang
- Digestive Medical Oncology, Cancer Hospital of Shantou University Medical College, Shantou
| | - Q Li
- Department of Medical Oncology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai
| | - J W Wang
- State Key Laboratory of Oncology in South China, Department of Ultrasonography, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou
| | - H Wu
- Shanghai Junshi Biosciences Co., Ltd, Shanghai, China
| | - H Feng
- Shanghai Junshi Biosciences Co., Ltd, Shanghai, China
| | - S Yao
- Shanghai Junshi Biosciences Co., Ltd, Shanghai, China
| | - R H Xu
- State Key Laboratory of Oncology in South China, Department of Medical Oncology, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou.
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Yi F, Diao S, Yuan XL, Li JY. [Association of plasma leptin levels and soluble leptin receptor with breast cancer]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 52:253-259. [PMID: 29973003 DOI: 10.3760/cma.j.issn.0253-9624.2018.03.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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 explore the association between plasma leptin (LEP) levels, soluble leptin receptor(SLR), free leptin index and breast cancer. Methods: 245 new female cases of primary breast cancer confirmed by histopathology examination were sequentially recruited into the study. A total of 245 age-matched healthy women were enrolled as controls during the same period. A standardized questionnaire was used to collect the demographic information of the subjects. Blood samples were collected and the levels of LEP and SLR in plasma were measured by enzyme linked immunosorbent assay. The differences of LEP, SLR and FLI expression between control and cases group, as well as different breast cancer subtypes and TNM stages were compared using t-test and ANOVA after stratification by menopause status. Multivariate logistic regression was used to explore the contributions of the three indexes to the risk of breast cancer. Results: Females in both cases and control group were (50.7 ± 9.4) years old. The level of SLR and FLI (P(50)(P(25),P(75))) in premenopausal women were 18.4 (11.2, 28.7), 0.5 (0.4, 0.6) μg/L in case group and 27.7 (19.2, 43.4), 0.3 (0.3, 0.4) μg/L in control group (P<0.001). While the level of postmenopausal women in case group were 20.3 (12.8, 31.8), 0.5 (0.4, 0.6) μ g/L (P<0.001), and 30.1 (18.8, 40.5), 0.3 (0.3, 0.5) μg/L in control group (P<0.001), respectively. After adjustment for confounding factors and BMI, the relationship between FLI and breast cancer remained significant for both pre- and postmenopausal women while the association between SLR and breast cancer was significant only in premenopausal women. Compared with the lowest level of SLR, higer levels of SLR is associated with a reduced risk of breast cancer (premenopausal women, OR=0.10, 95% CI: 0.04-0.29, P(trend)<0.001). Compared with the lowest level of FLI, FLI at higher levels is associated with an increased risk of breast cancer (premenopausal women, OR=7.14, 95% CI: 2.86-17.83, P(trend)<0.001; postmenopausal women, OR=8.10, 95% CI: 2.85-22.98, P(trend)<0.001). No significant association between LEP and breast cancer or association between the three indexes and breast cancer subtypes and TNM stages was found (P>0.05). Conclusion: SLR may be a protective factor for breast cancer while FLI may increase the risk of breast cancer.
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Affiliation(s)
- F Yi
- West China School of Public Health, Sichuan University, Chengdu 610041, China
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Ma RJ, Zhu ZM, Yuan XL, Jiang L, Yang SW, Yang J, Guo JM, Shi J, Lei PC, Zhang L, Shang BJ, Sun K, Zhai YP, Li W, Zhang Y. [The analysis of prognosis-associated factors in adults with acute promyelocytic leukemia]. Zhonghua Xue Ye Xue Za Zhi 2019; 38:592-596. [PMID: 28810326 PMCID: PMC7342290 DOI: 10.3760/cma.j.issn.0253-2727.2017.07.007] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
目的 探讨CD34、CD2、CD56表达和FLT3-ITD突变在成人急性早幼粒细胞白血病(APL)中的预后价值。 方法 分析2010年1月至2016年3月确诊的137例成人APL患者的免疫表型及分子学特点,探讨CD34、CD2、CD56表达及FLT3-ITD突变与初诊WBC、完全缓解率、早期死亡率、复发率、总生存(OS)率及无病生存(DFS)率的关系。 结果 ①137例APL患者中,伴CD34表达者占26.3%,伴CD2表达者占25.5%,伴CD56表达者占10.2%,FLT3-ITD突变率为17.5%。CD34、CD2、CD56表达和FLT3-ITD突变在高危组患者中的发生率分别为43.2%、47.7%、18.2%和27.3%;在中/低危组患者中的发生率分别为18.3%、15.1%、6.5%和12.9%,差异均有统计学意义(χ2值分别为9.561、16.764、4.480、4.268,P值分别为0.002、<0.001、0.034、0.039)。②中位随访41个月,完全缓解率为96.9%,早期死亡率为6.6%,复发率为7.3%。与阴性者比较,伴CD34或CD2表达者的复发率增加(18.8%对3.3%,χ2=8.462,P=0.004;16.1%对4.3%,χ2=4.382,P=0.028);伴CD56表达或FLT3-ITD突变者早期死亡率增加(21.4%对4.9%,χ2=5.610,P=0.018;16.7%对4.4%,χ2=4.833,P=0.028)。③137例患者的OS率为88.3%,DFS率为84.7%;CD34、CD56表达或FLT3-ITD突变者的OS及DFS较阴性者差(P值均<0.05)。 结论 在成人APL患者中,CD34、CD2、CD56表达及FLT3-ITD突变是一种不良预后因素。
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Affiliation(s)
- R J Ma
- Department of Hematology, Henan Provincial People's Hospital, Henan University, Zhengzhou 450003, China
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Ma RJ, Zhu ZM, Yuan XL, Jiang L, Yang SW, Yang J, Wang Z, Lei PC, Sun K, Guo JM, Zhang L, Zhang Y. [Significance of changed levels of TRACP-5b, PINP and vitamin D3 before and after the treatment of myeloma disease]. Zhonghua Xue Ye Xue Za Zhi 2018; 39:685-687. [PMID: 30180474 PMCID: PMC7342840 DOI: 10.3760/cma.j.issn.0253-2727.2018.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Indexed: 11/05/2022]
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Zuo GZ, Hu JS, Maingi R, Yang QX, Sun Z, Huang M, Chen Y, Yuan XL, Meng XC, Xu W, Gentile C, Carpe A, Diallo A, Lunsford R, Mansfield D, Osborne T, Tritz K, Li JG. Upgraded flowing liquid lithium limiter for improving Li coverage uniformity and erosion resistance in EAST device. Rev Sci Instrum 2017; 88:123506. [PMID: 29289198 DOI: 10.1063/1.4997806] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report on design and technology improvements for a flowing liquid lithium (FLiLi) limiter inserted into auxiliary heated discharges in the experimental advanced superconducting tokamak device. In order to enhance Li coverage uniformity and erosion resistance, a new liquid Li distributor with homogenous channels was implemented. In addition, two independent electromagnetic pumps and a new horizontal capillary structure contributed to an improvement in the observed Li flow uniformity (from 30% in the previous FLiLi design to >80% in this FLiLi design). To improve limiter surface erosion resistance, hot isostatic press technology was applied, which improved the thermal contact between thin stainless steel protective layers covering the Cu heat sink. The thickness of the stainless steel layer was increased from 0.1 mm to 0.5 mm, which also helped macroscopic erosion resilience. Despite the high auxiliary heating power up to 4.5 MW, no Li bursts were recorded from FLiLi, underscoring the improved performance of this new design.
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Affiliation(s)
- G Z Zuo
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - J S Hu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - R Maingi
- Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543, USA
| | - Q X Yang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Z Sun
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - M Huang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Y Chen
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - X L Yuan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - X C Meng
- Department of Applied Physics, Hunan University, Changsha 410082, China
| | - W Xu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - C Gentile
- Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543, USA
| | - A Carpe
- Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543, USA
| | - A Diallo
- Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543, USA
| | - R Lunsford
- Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543, USA
| | - D Mansfield
- Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543, USA
| | - T Osborne
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608, USA
| | - K Tritz
- Johns Hopkins University, Baltimore, Maryland 21211, USA
| | - J G Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
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Yuan XL, Xu ZP, Liu CR, Yan LP, Tao P, Xiong P, Li Q, Zhou M, Li H, Zhao M, Li JY. [Study of the association between polymorphism of persistent obesity, human leptin gene/leptin receptor gene and molecular subtypes of breast cancer]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 51:533-538. [PMID: 28592099 DOI: 10.3760/cma.j.issn.0253-9624.2017.06.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objectives: To explore the association between the polymorphism of persistent obesity and genetic variations in the LEP (human leptin gene, LEP) and LEPR (leptin receptor gene, LEPR) genes and different molecular subtypes of breast cancer. Methods: All 703 female patients of breast cancer diagnosed by histopathology in the Sichuan Cancer Hospital or the West China Hospital, excluding patients with metastatic breast cancer or mental disease, were selected as cases from April 2014 to May 2015. At the same time, 805 healthy women received physical examination in medical examination center of Sichuan People Hospital or Shuangliu maternal and child health care hospital, excluding those with therioma, breast disease, and mental disease, were enrolled in control group. A uniform questionnaire was used to collect general information including demographic characteristic, reproductive history height, weight, and so on. And the obesity status in recent 10 years was judged. Time of Flight Mass Spectrometer was used to determine the genotypes of LEP rs7799039, LEPR rs1137100 and LEPR rs1137101, while the multinomial logistic regression analysis was conducted to estimate the effect of risk factors related to breast cancer in different molecular subtypes; and then, the association between polymorphism of persistent obesity, the LEP, LEPR genes and breast cancer of different molecular subtypes was analyzed by binary logistic regression models. Results: The average age of controls was (48.98±8.83) years old, while the age of cases of TNBC, Luminal A, Luminal B, and HER-2+ were (51.43±11.33), (49.94±10.10), (49.73±9.38), (50.50±9.04) years old, respectively. The frequency of genotype LEP rs7799039, LEPR rs1137100 and LEPR rs1137101 in control group was separately 74.8%(1 157/1 546), 83.6%(1 339/1 602) and 88.4%(1 416/1 602); while 77.6% (1 074/1 384), 82.4% (1 155/1 402) and 87.9% (1 232/1 402) respectively in case group. Compared with non-persistent obesity subjects, the persistent obesity ones showed an increased risk in TNBC (OR=3.58, 95%CI: 1.90-6.72), Luminal A (OR=2.65, 95%CI: 1.35-5.21) and Luminal B (OR=1.90, 95%CI: 1.26-2.89) breast cancer. LEP rs7799039-AA was relevant with the upward risk of Luminal B independently (OR=1.30, 95%CI: 1.00-1.69). Besides, persistent obesity was found to have a combined effect on Luminal B (β=3.34, 95% CI: 1.00-11.12) with LEPR rs1137101-GG. Conclusion: Persistent obesity could increase the potential risk of TNBC, Luminal A and Luminal B breast cancer. Women who were suffered from persistent obesity with a genotype of LEPR rs1137101-GG were more susceptible to Luminal B breast cancer.
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Affiliation(s)
- X L Yuan
- West China School of Public Health, Sichuan University, Chengdu 610041, China
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Yuan XL, Jian XD, Wang K. [2 cases of acute imidacloprid poisoning clinical analysis]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:309-310. [PMID: 28614939 DOI: 10.3760/cma.j.issn.1001-9391.2017.04.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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31
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Yang F, Xiong P, Yuan XL, Liu CR, Ran LJ, Yang Y, Li JY. [Association of XRCC1 gene polymorphism and low dose ionizing radiation with peripheral blood lymphocyte micronucleus]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:189-192. [PMID: 28511303 DOI: 10.3760/cma.j.issn.1001-9391.2017.03.007] [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 explore the effects of X-ray repair cross complementing gene 1 (XRCC1) polymorphism and low dose ionizing radiation exposure on radiology professionals' peripheral blood lymphocyte micronucleus. Methods: A matched case-control study was designed. From 2013 to 2015, 1 102 radiology professionals with micronucleus test rusults, and 45 cases with present micronucleus were enroled into case group. 180 diagnostic radiology technicians detecting no micronucleus were chosen as control group, cases and controls were 1∶4 mached on gender, age ≤40 or >40 years old. According to the detection of micronucleus levels (0‰, 1‰, 2‰) , the objects of our study were divided into the reference group, the low detection group and the medium detection group. The form of radiation workers' occupational health examination was used to collect the general baseline of the research objects, history of smoking, drinking, poisonous and harmful material exposure, past medical history, accumulated illuminated dose and lymphocyte micronucleus rates (‰) , etc. Using restriction fragment length polymorphism polymerase chain reaction (RFLP-PCR) technology for genotyping; Compared the baseline data and radiation exposure level between the differentmicrokernel detection groups; Adopted multivariate logistic regression to analysis the combination effect of XRCC1 Arg399Gln gene polymorphism and accumulated illuminated dosefor micronucleus rate. Results: The accumulated illuminated dose in the reference group, the low detection group and the medium detection group were (23.44±15.23) , (21.76±2.56) , (24.22±18.61) mSv, respectively. There was no statistically significant difference among the groups (P>0.05) . Under the dominant inheritance mode, after adjusted age, smoking and drinking factors, the results suggested that XRCC1 Arg399Gln micronucleus medium detection group compared with the reference group, Arg399Gln-GG as reference, Arg399Gln-GA+AA decreased the occurrence of micronucleus (OR=0.175, 95%CI: 0.036-0.848) . Arg194Trp and Arg280His did not affect the incidence of micronucleus (P>0.05) . Did not find the combination effect of XRCC1 Arg399Gln gene polymorphism and accumulated illuminated dose for micronucleus rate (P>0.05) . Conclusion:XRCC1 Arg399Gln gene polymorphism can affect the incidence of micronucleus, and carrying the XRCC1 Arg399Gln-GA+AA genotype is a protective factor of micronucleus's occurrence, but low dose ionizing radiation may not affect the occurrence of micronucleus independently.
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Affiliation(s)
- F Yang
- Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
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Yuan XL, Li Y, Pan XH, Zhou M, Gao QY, Li MC. [Production of recombinant human interleukin-38 and its inhibitory effect on the expression of proinflammatory cytokines in THP-1 cells]. Mol Biol (Mosk) 2017; 50:466-73. [PMID: 27414784 DOI: 10.7868/s0026898416030137] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 07/16/2015] [Indexed: 11/23/2022]
Abstract
Interleukin (IL)-38 is the latest member of the IL-1 cytokine family. However, as a result of lacking efficient method to generate relatively large quantity of IL-38, its precise functions are poorly understood. In the present study, the cloning, expression, purification, and activity analysis of recombinant human IL-38 was described. Human IL-38 cDNA was cloned into the prokaryotic expression vector pET-44. The recombinant IL-38 containing a C-hexahistidine tag was expressed in Escherichia coli BL21 (DE3) which induced by isopropyl-β-D-thiogalactoside. The expressed fusion protein was purified by Ni-NTA affinity chromatography. IL-38 protein was largely found in the soluble fraction. The purified IL-38 appeared a single band on SDS-PAGE, the yield of IL-38 was 4 mg from 1 L of bacterial culture, and the purity was more than 98% with low endotoxin level (<0.1 EU/μg). Western blotting confirmed the identity of the purified protein. Activity analysis showed that IL-38 can inhibit effectively the expression of proinflammatory cytokines, such as tumor necrosis factor-α, IL-1β, IL-17, and monocyte chemoattractant protein-1 in lipopolysaccharide-activated THP-1 cells. The production and characterization of biologically active IL-38 will be beneficial for its potential role in clinical applications.
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Affiliation(s)
- X L Yuan
- Zhejiang Provincial Key Laboratory of Pathophysiology, Department of Immunology, Ningbo University School of Medicine, Ningbo, 315211, China
| | - Y Li
- Zhejiang Provincial Key Laboratory of Pathophysiology, Department of Immunology, Ningbo University School of Medicine, Ningbo, 315211, China.,
| | - X H Pan
- Zhejiang Provincial Key Laboratory of Pathophysiology, Department of Immunology, Ningbo University School of Medicine, Ningbo, 315211, China
| | - M Zhou
- Zhejiang Provincial Key Laboratory of Pathophysiology, Department of Immunology, Ningbo University School of Medicine, Ningbo, 315211, China
| | - Q Y Gao
- Zhejiang Provincial Key Laboratory of Pathophysiology, Department of Immunology, Ningbo University School of Medicine, Ningbo, 315211, China
| | - M C Li
- Zhejiang Provincial Key Laboratory of Pathophysiology, Department of Immunology, Ningbo University School of Medicine, Ningbo, 315211, China.,
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Wang YQ, Zhou M, Zeng LM, Gao QY, Yuan XL, Li Y, Li MC. Soluble expression and one-step purification of recombinant mouse interferon-λ3 in Escherichia coli. Biochemistry (Mosc) 2015; 80:228-32. [PMID: 25756537 DOI: 10.1134/s0006297915020091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Interferon (IFN)-λ3, a member of the type III IFN family, is a pleiotropic cytokine that exhibits potent antiproliferative, antiviral, and immunoregulatory activities. For further functional study of IFN-λ3, we developed an efficient procedure that includes cloning, expression, and purification to obtain relatively large quantity of mouse IFN-λ3 fusion protein. The mature IFN-λ3 protein-coding region was cloned into the prokaryotic expression vector pET-44. IFN-λ3 contains a hexahistidine tag at its C-terminus. We used Ni(2+)-nitrilotriacetic acid agarose-affinity chromatography to purify the expressed soluble protein. The purified IFN-λ3 inhibited significantly IL-13 production in stimulated RAW264.7 macrophages. Our findings show that the production of soluble IFN-λ3 proteins by the pET-44 vector in Escherichia coli is a good alternative for the production of native IFN-λ3 and could be useful for the production of other IFN proteins.
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Affiliation(s)
- Y Q Wang
- Zhejiang Provincial Key Laboratory of Pathophysiology, Department of Immunology, Ningbo University School of Medicine, Ningbo, 315211, China.
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Yuan XL, Meng HY, Wang YC, Peng J, Guo QY, Wang AY, Lu SB. Bone-cartilage interface crosstalk in osteoarthritis: potential pathways and future therapeutic strategies. Osteoarthritis Cartilage 2014; 22:1077-89. [PMID: 24928319 DOI: 10.1016/j.joca.2014.05.023] [Citation(s) in RCA: 180] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 05/22/2014] [Accepted: 05/28/2014] [Indexed: 02/02/2023]
Abstract
Currently, osteoarthritis (OA) is considered a disease of the entire joint, which is not simply a process of wear and tear but rather abnormal remodelling and joint failure of an organ. The bone-cartilage interface is therefore a functioning synergistic unit, with a close physical association between subchondral bone and cartilage suggesting the existence of biochemical and molecular crosstalk across the OA interface. The crosstalk at the bone-cartilage interface may be elevated in OA in vivo and in vitro. Increased vascularisation and formation of microcracks associated with abnormal bone remodelling in joints during OA facilitate molecular transport from cartilage to bone and vice versa. Recent reports suggest that several critical signalling pathways and biological factors are key regulators and activate cellular and molecular processes in crosstalk among joint compartments. Therapeutic interventions including angiogenesis inhibitors, agonists/antagonists of molecules and drugs targeting bone remodelling are potential candidates for this interaction. This review summarised the premise for the presence of crosstalk in bone-cartilage interface as well as the current knowledge of the major signalling pathways and molecular interactions that regulate OA progression. A better understanding of crosstalk in bone-cartilage interface may lead to development of more effective strategies for treating OA patients.
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Affiliation(s)
- X L Yuan
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing 28# Road, Beijing, China
| | - H Y Meng
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing 28# Road, Beijing, China
| | - Y C Wang
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing 28# Road, Beijing, China
| | - J Peng
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing 28# Road, Beijing, China
| | - Q Y Guo
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing 28# Road, Beijing, China
| | - A Y Wang
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing 28# Road, Beijing, China.
| | - S B Lu
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing 28# Road, Beijing, China
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Nandakumar R, Shahjahan AKM, Yuan XL, Dickstein ER, Groth DE, Clark CA, Cartwright RD, Rush MC. Burkholderia glumae and B. gladioli Cause Bacterial Panicle Blight in Rice in the Southern United States. Plant Dis 2009; 93:896-905. [PMID: 30754532 DOI: 10.1094/pdis-93-9-0896] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Bacterial panicle blight (BPB) is among the three most limiting rice diseases in Louisiana and the southern United States. The identity and characterization of pathogens associated with this disease was unclear. This research details studies carried out on the pathogens causing BPB on rice in Louisiana and other rice producing southern states. Bacterial strains were isolated from BPB-infected sheath, panicle, or grain samples collected from rice fields in Louisiana, Arkansas, Texas, and Mississippi. In greenhouse inoculation tests, 292 of 364 strains were pathogenic on rice seedlings or panicles. Identification of strains in the pathogen complex by growth on S-PG medium, carbon source utilization profile (Biolog), cellular fatty acid analysis, and polymerase chain reaction (PCR) methods revealed that 76 and 5% of the strains were Burkholderia glumae and B. gladioli, respectively. The other strains have not been conclusively identified. Although strains of both species produced similar symptoms on rice, B. glumae strains were generally more aggressive and caused more severe symptoms on rice than B. gladioli. Virulent strains of both species produced toxoflavin in culture. The two species had similar growth responses to temperature, and optima ranged from 38 to 40°C for B. glumae and 35 to 37°C for B. gladioli. PCR was the most sensitive and accurate method tested for identifying the bacterial pathogens to the species level. The 16S rDNA gene and 16S-23S rDNA internal transcribed spacer (ITS) region sequences of the B. glumae and B. gladioli strains from rice showed more than 99% sequence homology with published sequences. A real-time PCR system was developed to detect and quantify this pathogen from infected seed lots. Our results clearly indicate that B. glumae and B. gladioli were the major pathogens causing BPB in the southern United States.
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Affiliation(s)
- Rangaraj Nandakumar
- Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge 70803
| | | | - X L Yuan
- Department of Plant Pathology and Crop Physiology, LSU-Agcenter, Baton Rouge 70803
| | - E R Dickstein
- Department of Plant Pathology, University of Florida, Gainesville 32611
| | - D E Groth
- LSU Agcenter Rice Research Station, Rayne, LA 70578
| | - C A Clark
- Department of Plant Pathology and Crop Physiology, LSU-Agcenter, Baton Rouge 70803
| | | | - M C Rush
- Department of Plant Pathology and Crop Physiology, LSU-Agcenter, Baton Rouge 70803
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Yuan XL, Dierre B, Wang JB, Zhang BP, Sekiguchi T. Spatial distribution of impurities in ZnO nanotubes characterized by cathodoluminescence. J Nanosci Nanotechnol 2007; 7:3323-7. [PMID: 18019168 DOI: 10.1166/jnn.2007.661] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Low-energy cathodoluminescence (CL) imaging and spectroscopy technique was employed to study the impurity distribution in individual ZnO hexagonal nanotubes fabricated by metalorganic chemical vapor deposition on the sapphire (0001) substrate. The CL spectra at 10 K show that acceptor and donor impurities are incorporated in the ZnO nanotubes. CL monochromatic images indicate that the concentration of donor is higher at the bottom part and the distribution of acceptors is more inhomogeneous at the surface of the nanotubes. The non-uniform defects and impurities distributions are explained by unstable growth conditions and contamination from the environment. These results indicate that the low-energy CL is a very powerful method to investigate the inhomogeneity of luminescence properties in the individual nanostructures.
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Affiliation(s)
- X L Yuan
- Advanced Electronic Materials Center National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
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Dong XL, Dai ZP, Lin BC, Ju XJ, Wang XW, Yuan XL. [Determination of sialic acids in serum of lung cancer with ultrafiltration-capillary electrophoresis]. Se Pu 2000; 18:426-8. [PMID: 12541703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
A method for the determination of sialic acids in serum with ultrafiltration-capillary electrophoresis is described and the operation was optimized. Sialic acids were directly separated and analyzed with UV detection at 195 nm and without pre-or post-column derivatization. The recovery of N-acetylneuraminic acid (NANA) was 92.6%, the concentration and mass detection limit of NANA were 9.6 mumol/L and 39 fmol respectively. This method was used for the determination of NANA level in the serum of 11 lung cancer patients and 30 normal adults. The results showed that the average concentration of NANA in the serum of patients was much higher than that of normal adults with P < 0.001. The results were also compared with those obtained by the traditional colorimetric method, with good linear relationship of r = 0.983 at n = 10. It is concluded that the method described in this paper is simple and sensitive, and is suitable for basic research and clinical applications to malignant tumors.
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Affiliation(s)
- X L Dong
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian Third Municipal Hospital, Dalian, China
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Zhang DS, Yin XQ, Zhang SZ, Wang PY, Yuan XL, Geng B, Sun SZ. [The effect of CO2 laser combined with chloroquini phosphate in the treatment of oral lichen planus: report of 80 cases]. Shanghai Kou Qiang Yi Xue 2000; 9:187-8. [PMID: 15014803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
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