1
|
Liu YT, Zhu MJ, Yang M, Gao XC. [Imaging findings of supratentorial embryonal tumor with multilayered rosettes in children]. Zhonghua Yi Xue Za Zhi 2023; 103:215-218. [PMID: 36649993 DOI: 10.3760/cma.j.cn112137-20220608-01277] [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: 01/19/2023]
Abstract
We analyzed and summarized the imaging characteristics and clinical data of seven pediatric supratentorial embryonal tumors with multilayered rosettes (ETMR). There were four boys and three girls aged from two to six years old. Pediatric supratentorial ETMR often presented large cystic and solid mass, calcification, significant mass effect and mild peritumoral edema. The solid part often showed heterogeneous mild enhancement. In combination with the location of tumor and age of onset, the typical imaging manifestations of supratentorial ETMR in children are valuable for accurate diagnosis.
Collapse
Affiliation(s)
- Y T Liu
- Department of Radiology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - M J Zhu
- Department of Radiology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - M Yang
- Department of Radiology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - X C Gao
- Department of Radiology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| |
Collapse
|
2
|
Jin MZ, Gao XC, Jin WL. Editorial: Cancer neuroscience: Drug repurposing targeting the innervated niche. Front Pharmacol 2023; 14:1148706. [PMID: 36909193 PMCID: PMC9992969 DOI: 10.3389/fphar.2023.1148706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 02/13/2023] [Indexed: 02/24/2023] Open
Affiliation(s)
- Ming-Zhu Jin
- Department of Obstetrics and Gynecology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xing-Chun Gao
- Department of Immunology, School of Basic Medical Science, Xi'an Medical University, Xi'an, Shaanxi, China.,Department of Neurosurgery, Yale University, New Haven, CT, United States
| | - Wei-Lin Jin
- Institute of Cancer Neuroscience, Medical Frontier Innovation Research Center, The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| |
Collapse
|
3
|
Gao XC, Hu AH. [Study on infectious diseases in Guizhou during the Republic of China]. Zhonghua Yi Shi Za Zhi 2019; 49:83-88. [PMID: 31137156 DOI: 10.3760/cma.j.issn.0255-7053.2019.02.004] [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
There are many infectious diseases in Guizhou Province during the Republican period, including cholera, smallpox, typhoid, typhus, dysentery, scarlet fever, diphtheria, epidemic cerebrospinal meningitis, recurrent fever, malaria, trachoma, acute conjunctivitis, skin diseases, venereal diseases, leprosy and so on. Natural and social factors together led to the prevalence of infectious diseases during that period. For example, natural factors mainly include Guizhou province's special geographical condition and its frequent flood disasters, and social factors such as the unhealthy lifestyle and low medical level have also caused bad effects. In general, infectious diseases during the Republican period have resulted in a large number of mortalities and great financial losses, hindering the development of Guizhou economic society at that time.
Collapse
Affiliation(s)
- X C Gao
- College of History and Politics, Guizhou Normal University, Guiyang 550025, China
| | - A H Hu
- Marxism Institute of Guizhou Normal University, Guiyang 550025, China
| |
Collapse
|
4
|
Qiu GZ, Mao XY, Ma Y, Gao XC, Wang Z, Jin MZ, Sun W, Zou YX, Lin J, Fu HL, Jin WL. Ubiquitin-specific protease 22 acts as an oncoprotein to maintain glioma malignancy through deubiquitinating B cell-specific Moloney murine leukemia virus integration site 1 for stabilization. Cancer Sci 2018; 109:2199-2210. [PMID: 29788550 PMCID: PMC6029839 DOI: 10.1111/cas.13646] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 05/08/2018] [Accepted: 05/16/2018] [Indexed: 12/13/2022] Open
Abstract
Ubiquitin‐specific protease 22 (USP22) is a member of the “death‐from‐cancer” signature, which plays a key role in cancer progression. Previous evidence has shown that USP22 is overexpressed and correlates with poor prognosis in glioma. The effect and mechanism of USP22 in glioma malignancy, especially cancer stemness, remain elusive. Herein, we find USP22 is more enriched in stem‐like tumorspheres than differentiated glioma cells. USP22 knockdown inhibits cancer stemness in glioma cell lines. With a cell‐penetrating TAT‐tag protein, B cell‐specific Moloney murine leukemia virus integration site 1 (BMI1), a robust glioma stem‐cell marker, is found to mediate the effect of USP22 on glioma stemness. By immunofluorescence, USP22 and BMI1 are found to share similar intranuclear expression in glioma cells. By analysis with immunohistochemistry and bioinformatics, USP22 is found to positively correlate with BMI1 at the post‐translational level only rather than at the transcriptional level. By immunoprecipitation and in vivo deubiquitination assay, USP22 is found to interact with and deubiquitinate BMI1 for protein stabilization. Microarray analysis shows that USP22 and BMI1 mutually regulate a series of genes involved in glioma stemness such as POSTN,HEY2,PDGFRA and ATF3. In vivo study with nude mice confirms the role of USP22 in promoting glioma tumorigenesis by regulating BMI1. All these findings indicate USP22 as a novel deubiquitinase of BMI1 in glioma. We propose a working model of the USP22‐BMI1 axis, which promotes glioma stemness and tumorigenesis through oncogenic activation. Thus, targeting USP22 might be an effective strategy to treat glioma especially in those with elevated BMI1 expression.
Collapse
Affiliation(s)
- Guan-Zhong Qiu
- Department of Instrument Science and Engineering, Key Lab. for Thin Film and Microfabrication Technology of Ministry of Education, School of Electronic Information and Electronic Engineering, Institute of Nano Biomedicine and Engineering, Shanghai Jiao Tong University, Shanghai, China.,Department of Neurosurgery, General Hospital of Jinan Military Command, Jinan, China
| | - Xiao-Yuan Mao
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.,Institute of Clinical Pharmacology, Central South University, Changsha, China.,Human Key Laboratory of Pharmacogenetics, Changsha, China
| | - Yue Ma
- Department of Instrument Science and Engineering, Key Lab. for Thin Film and Microfabrication Technology of Ministry of Education, School of Electronic Information and Electronic Engineering, Institute of Nano Biomedicine and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Xing-Chun Gao
- Shanxi Key Laboratory of Ischemic Cardiovascular Disease, Institute of Basic Medical Medicine, Xi'an Medical University, Xi'an, China
| | - Zhen Wang
- Department of Instrument Science and Engineering, Key Lab. for Thin Film and Microfabrication Technology of Ministry of Education, School of Electronic Information and Electronic Engineering, Institute of Nano Biomedicine and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Ming-Zhu Jin
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Sun
- Department of Neurosurgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Yong-Xiang Zou
- Department of Neurosurgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Jing Lin
- Department of Neurosurgery, The General Hospital of Western Air Force, Chengdu, China
| | - Hua-Lin Fu
- Department of Instrument Science and Engineering, Key Lab. for Thin Film and Microfabrication Technology of Ministry of Education, School of Electronic Information and Electronic Engineering, Institute of Nano Biomedicine and Engineering, Shanghai Jiao Tong University, Shanghai, China.,National Centers for Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wei-Lin Jin
- Department of Instrument Science and Engineering, Key Lab. for Thin Film and Microfabrication Technology of Ministry of Education, School of Electronic Information and Electronic Engineering, Institute of Nano Biomedicine and Engineering, Shanghai Jiao Tong University, Shanghai, China.,National Centers for Translational Medicine, Shanghai Jiao Tong University, Shanghai, China
| |
Collapse
|
5
|
Dai L, Guo X, Huang HJ, Liao XM, Luo XQ, Li D, Zhou H, Gao XC, Tan MY. [Effects of exogenous high mobility group protein box 1 on angiogenesis in ischemic zone of early scald wounds of rats]. Zhonghua Shao Shang Za Zhi 2018; 34:219-224. [PMID: 29690740 DOI: 10.3760/cma.j.issn.1009-2587.2018.04.006] [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 observe effects of exogenous high mobility group protein box 1 (HMGB1) on angiogenesis in ischemic zone of early scald wounds of rats. Methods: Thirty-six Sprague-Dawley rats were divided into HMGB1 group and simple scald (SS) group according to the random number table, with 18 rats in each group. Comb-like copper mould was placed on the back of rats for 20 s after being immersed in 100 ℃ hot water for 3 to 5 min to make three ischemic zones of wound. Immediately after scald, rats in HMGB1 group were subcutaneously injected with 0.4 μg HMGB1 and 0.1 mL phosphate buffer solution (PBS), and rats in SS group were subcutaneously injected with 0.1 mL PBS from boarders of ischemic zone of scald wound. At post scald hour (PSH) 24, 48, and 72, 6 rats in each group were collected. Protein expressions of vascular endothelial growth factor (VEGF) in ischemic zone of wound at PSH 24, 48, and 72 and protein expressions of CD31 in ischemic zone of wound at PSH 48 and 72 were detected by immunohistochemistry. The number of microvessel in CD31 immunohistochemical sections of ischemic zone of wound at PSH 48 and 72 was calculated after observing by the microscope. The mRNA expressions of VEGF and CD31 in ischemic zone of wound were detected by real-time fluorescence quantitative reverse transcription polymerase chain reaction at PSH 24, 48, and 72. Data were processed with analysis of variance of factorial design, t test, and Bonferroni correction. Results: (1) At PSH 24, 48, and 72, protein expressions of VEGF in ischemic zone of wound of rats in HMGB1 group were significantly higher than those of rats in SS group (t=7.496, 4.437, 5.402, P<0.05 or P<0.01). At PSH 48 and 72, protein expressions of CD31 in ischemic zone of wound of rats in HMGB1 group were 0.038 8±0.007 9 and 0.057 7±0.001 2 respectively, significantly higher than 0.013 4±0.004 9 and 0.030 3±0.004 0 of rats in SS group (t=10.257, 15.055, P<0.01). (2) At PSH 48 and 72, the number of microvessel in ischemic zone of wound of rats in HMGB1 group was obviously more than that of rats in SS group (t=3.536, 4.000, P<0.05). (3) At PSH 24, 48, and 72, mRNA expressions of VEGF in ischemic zone of wound of rats in HMGB1 group were significantly higher than those of rats in SS group (t=4.406, 3.821, 3.356, P<0.05). At PSH 24 and 48, mRNA expressions of CD31 in ischemic zone of wound of rats in HMGB1 group were significantly higher than those of rats in SS group (t=4.113, 3.466, P<0.05). At PSH 72, mRNA expressions of CD31 in ischemic zone of wound of rats in 2 groups were close (t=0.010, P>0.05). Conclusions: Exogenous HMGB1 can promote angiogenesis in ischemic zone of early scald wounds of rats by increasing expressions of VEGF and CD31.
Collapse
Affiliation(s)
- L Dai
- Department of Burns and Plastic Surgery, the First Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | | | | | | | | | | | | | | | | |
Collapse
|
6
|
Mi YJ, Chen H, Guo N, Sun MY, Zhao ZH, Gao XC, Wang XL, Zhang RS, Zhou JB, Gou XC. Inhibition of PirB Activity by TAT-PEP Improves Mouse Motor Ability and Cognitive Behavior. Front Aging Neurosci 2017; 9:199. [PMID: 28676756 PMCID: PMC5476690 DOI: 10.3389/fnagi.2017.00199] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 06/02/2017] [Indexed: 01/07/2023] Open
Abstract
Paired immunoglobulin-like receptor B (PirB), a functional receptor for myelin-associated inhibitory proteins, plays an important role in axon regeneration in injured brains. However, its role in normal brain function with age has not been previously investigated. Therefore in this study, we examined the expression level of PirB in the cerebral cortex, hippocampus and cerebellum of mice at 1 month, 3 months and 18 months of age. The results showed that the expression of PirB increased with age. We further demonstrated that overexpression of PirB inhibited neurite outgrowth in PC12 cells, and this inhibitory activity of PirB could be reversed by TAT-PEP, which is a recombinant soluble PirB ectodomain fused with TAT domain for blood-brain barrier penetration. In vivo study, intraperitoneal administration of TAT-PEP was capable of enhancing motor capacity and spatial learning and memory in mice, which appeared to be mediated through regulation of brain-derived neurotrophic factor (BDNF) secretion. Our study suggests that PirB is associated with aging and TAT-PEP may be a promising therapeutic agent for modulation of age-related motor and cognitive dysfunctions.
Collapse
Affiliation(s)
- Ya-Jing Mi
- Institute of Basic and Translational Medicine, and School of Basic Medical Sciences, and Shaanxi Key Laboratory of Brain Disorders, Xi'an Medical UniversityXi'an, China
| | - Hai Chen
- Institute of Basic and Translational Medicine, and School of Basic Medical Sciences, and Shaanxi Key Laboratory of Brain Disorders, Xi'an Medical UniversityXi'an, China.,Department of Anesthesiology, Tangdu Hospital, Fourth Military Medical UniversityXi'an, China
| | - Na Guo
- Institute of Basic and Translational Medicine, and School of Basic Medical Sciences, and Shaanxi Key Laboratory of Brain Disorders, Xi'an Medical UniversityXi'an, China
| | - Meng-Yi Sun
- Department of Neurosurgery, School of Medicine, Yale UniversityNew Haven, CT, United States
| | - Zhao-Hua Zhao
- Institute of Basic and Translational Medicine, and School of Basic Medical Sciences, and Shaanxi Key Laboratory of Brain Disorders, Xi'an Medical UniversityXi'an, China
| | - Xing-Chun Gao
- Institute of Basic and Translational Medicine, and School of Basic Medical Sciences, and Shaanxi Key Laboratory of Brain Disorders, Xi'an Medical UniversityXi'an, China
| | - Xiao-Long Wang
- Institute of Basic and Translational Medicine, and School of Basic Medical Sciences, and Shaanxi Key Laboratory of Brain Disorders, Xi'an Medical UniversityXi'an, China
| | - Rui-San Zhang
- Institute of Basic and Translational Medicine, and School of Basic Medical Sciences, and Shaanxi Key Laboratory of Brain Disorders, Xi'an Medical UniversityXi'an, China
| | - Jiang-Bing Zhou
- Department of Neurosurgery, School of Medicine, Yale UniversityNew Haven, CT, United States
| | - Xing-Chun Gou
- Institute of Basic and Translational Medicine, and School of Basic Medical Sciences, and Shaanxi Key Laboratory of Brain Disorders, Xi'an Medical UniversityXi'an, China.,Department of Neurosurgery, School of Medicine, Yale UniversityNew Haven, CT, United States
| |
Collapse
|
7
|
Zhang MJ, Xing LX, Cui M, Yang X, Shi JG, Li J, Zhang KJ, Zheng ZJ, Zhang FC, Li JL, Gao XC. Association of TUSC3 gene polymorphisms with non-syndromic mental retardation based on nuclear families in the Qinba mountain area of China. Genet Mol Res 2015; 14:5022-30. [PMID: 25966277 DOI: 10.4238/2015.may.12.5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
TUSC3 interacts with the protein phosphatase 1 and magnesium ion transport system, which plays an important role in learning and memory. Abnormal conditions of learning and memory are common clinical characteristics of mental retardation (MR). However, the association of TUSC3 genetic polymorphisms with MR remains unknown. A total of 456 DNA samples including 174 nuclear families containing MR were collected in the Qinba mountain area of China. The genotypes of eight tag single nucleotide polymorphisms of TUSC3 were evaluated with traditional genetic methods. Family-based association tests, transmission disequilibrium tests (TDTs), and haplotype relative risk (HRR) analyses were performed to investigate the association between genetic variants of the TUSC3 gene and MR. The genetic polymorphisms rs10093881, rs6530893, and rs6994908 were associated with MR (all P values <0.05) based upon the results of single-site TDT and HRR analyses. The haplotype block consisting of rs6530893 and rs6994908, harboring the sixth exon of TUSC3, was also associated with MR (all P values <0.05). This study demonstrated an association between genetic polymorphisms of the TUSC3 gene and MR in the Qinba mountain area, the sixth exon of which might contribute to the risk of MR. However, further studies are needed on the causal mechanisms in this association.
Collapse
Affiliation(s)
- M J Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Population and Health, College of Life Science, Northwest University, Xi'an, Shaanxi, China
| | - L X Xing
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Population and Health, College of Life Science, Northwest University, Xi'an, Shaanxi, China
| | - M Cui
- The Mental Health Center of Xi'an, Xi'an, Shaanxi, China
| | - X Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Population and Health, College of Life Science, Northwest University, Xi'an, Shaanxi, China
| | - J G Shi
- The Mental Health Center of Xi'an, Xi'an, Shaanxi, China
| | - J Li
- Institute of Application Psychology, College of Public Management, Northwest University, Xi'an, Shaanxi, China
| | - K J Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Population and Health, College of Life Science, Northwest University, Xi'an, Shaanxi, China
| | - Z J Zheng
- Institute of Application Psychology, College of Public Management, Northwest University, Xi'an, Shaanxi, China
| | - F C Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Population and Health, College of Life Science, Northwest University, Xi'an, Shaanxi, China
| | - J L Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Population and Health, College of Life Science, Northwest University, Xi'an, Shaanxi, China
| | - X C Gao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Population and Health, College of Life Science, Northwest University, Xi'an, Shaanxi, China
| |
Collapse
|
8
|
Li JL, Li YJ, Zhang KJ, Lan L, Shi JG, Yang X, Zhang MJ, Zhang FC, Gao XC. No association between FGD1 gene polymorphisms and intellectual developmental disability in the Qinba mountain area. Genet Mol Res 2014; 13:127-33. [PMID: 24446295 DOI: 10.4238/2014.january.10.3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
FGD1 encoding a guanine nucleotide exchange factor, specifically activates Rho GTPase cell division cycle 42 (Cdc42). Dysfunction of FGD1 causes Aarskog-Scott syndrome (MIM #305400), an X-linked disorder that may affect bone and intellectual development. However, the relationship between FGD1 and intellectual developmental disorders (IDD) remains unclear. The purpose of this study was to investigate the genetic association between the FGD1 polymorphism and IDD. Working with families from the Qinba mountain area where the occurrence of IDD is higher than the average in China, we analyzed 456 samples from 130 nuclear families, effectively controlling for stratification and environmental factors. Five SNP loci (rs2230265, rs7881608, rs2239809, rs6614244, and rs2284710) were selected that were well distributed within the FGD1 gene. Genotyping was performed through single-strand conformation polymorphism and restriction fragment length polymorphism. The data were analyzed with transmission disequilibrium tests. In the Qinba mountain area, no significant association was observed between IDD and allele or genotype frequencies, or the haplotype of the 5 SNP loci of the FGD1 gene. The results indicate that FGD1 may not be a monogenetic X-linked factor in IDD. Further studies are required to investigate its role in intellectual development based on its specific interactions with Cdc42 or other partner proteins contributing to IDD.
Collapse
Affiliation(s)
- J L Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Population and Health, College of Life Science, Northwest University, Xian, Shaanxi, China
| | - Y J Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Population and Health, College of Life Science, Northwest University, Xian, Shaanxi, China
| | - K J Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Population and Health, College of Life Science, Northwest University, Xian, Shaanxi, China
| | - L Lan
- Department of Pediatrics, Tangdu Hospital, The Fourth Military Medical University, Xian, Shaanxi, China
| | - J G Shi
- Xian Institute of Mental Health, Xian, Shaanxi, China
| | - X Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Population and Health, College of Life Science, Northwest University, Xian, Shaanxi, China
| | - M J Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Population and Health, College of Life Science, Northwest University, Xian, Shaanxi, China
| | - F C Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Population and Health, College of Life Science, Northwest University, Xian, Shaanxi, China
| | - X C Gao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Institute of Population and Health, College of Life Science, Northwest University, Xian, Shaanxi, China
| |
Collapse
|
9
|
Gao XC, Xu MQ, He GS. [Expression and purification of recombinant hypodermin C in Pichia pastoris]. Sheng Wu Gong Cheng Xue Bao 2007; 23:552-6. [PMID: 17578011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Hypodermin C (HC) cDNA was amplified from recombinant pGEM - T/HC, cloned in frame with the signal sequence in yeast vector pPIC9k. The plasmid was linerarized and transformed into Pichia pastoris GS115 strain by electroporation method. Recombinant strain was screened by G418 resistant, and further confirmed by PCR. The recombinant strain which contains insert was induced in the medium containing 0.5% methanol. The supernatant was collected and then purified by anion exchange chromatography. SDS-PAGE indicated that the target protein is around 28kD. Western-blot showed it can react with rabbit-anti HC serum. Gelatin substrate SDS-PAGE displayed it had enzyme activity. Provided a method to produce enough antigens for carrying out extensive immunological analyses.
Collapse
Affiliation(s)
- Xing-Chun Gao
- Shanghai Institute of Animal Parasitology, Chinese Academy of Agricultural Sciences, Shanghai 200232, China
| | | | | |
Collapse
|
10
|
Wang HY, Zhang FC, Gao JJ, Fan JB, Liu P, Zheng ZJ, Xi H, Sun Y, Gao XC, Huang TZ, Ke ZJ, Guo GR, Feng GY, Breen G, Clair DS, He L. Apolipoprotein E is a genetic risk factor for fetal iodine deficiency disorder in China. Mol Psychiatry 2000; 5:363-8. [PMID: 10889546 DOI: 10.1038/sj.mp.4000735] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Fetal iodine deficiency disorder (FIDD) is the principal form of endemic cretinism, and the most common cause of preventable mental deficiency in the world. However not everyone at risk develops FIDD and familial aggregation is common. This suggests that genetic factors may also be involved. The Apolipoprotein E (APOE) gene encodes for a lipoprotein that possesses a thyroid hormone binding domain, and APOE genotype may affect the efficiency with which thyroid hormone influences neuronal cell growth during the first and second trimesters of fetal development. We have compared ApoE genotypes in 91 FIDD cases with 154 local control subjects, recruited from three iodine deficiency areas in central China. We have also genotyped 42 FIDD family cases and 158 normal individuals from the families of local controls, and 375 population controls from Shanghai. APOE epsilon4 genotypes were significantly enriched in FIDD probands from each of the three iodine deficiency areas; the epsilon4 allele frequency was 16% vs 6% in controls. The same effect was also observed when we compared FIDD family cases with controls and control families. Our data suggest that in iodine-deficient areas, the APOE epsilon4 allele is a genetic risk factor for FIDD. The phenomenon may affect population selection and contribute to the low frequency of the epsilon4 allele in Chinese compared to Caucasian populations.
Collapse
Affiliation(s)
- H Y Wang
- Shanghai Institute of Physiology, Chinese Academy Sciences, Shanghai 200031, People's Republic of China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Gao XC, Gao J, Qian TZ, Xu JB. Quantum-invariant theory and the evolution of a quantum scalar field in Robertson-Walker flat spacetimes. Int J Clin Exp Med 1996; 53:4374-4381. [PMID: 10020435 DOI: 10.1103/physrevd.53.4374] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
12
|
Yuan HN, Tan DJ, Zhang SC, Li SZ, Gao XC. [A review of the literature concerning the adverse effects of Chinese herbal drugs published in major medical and pharmaceutical periodicals in China in 1992]. Zhongguo Zhong Yao Za Zhi 1993; 18:643-7, 674. [PMID: 8003223] [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: 01/28/2023]
|
13
|
Qian TZ, Gao XC, Xu JB. Aharonov-Anandan phase and the imaginary-time path integral. Phys Rev B Condens Matter 1993; 48:11401-11403. [PMID: 10007457 DOI: 10.1103/physrevb.48.11401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
14
|
Zhang SC, Li SZ, Gao XC, Qian LH, Yang MZ, Yuan HN, Tan DJ. [The adverse effects of the preparations of the active principles of Chinese herbal drugs]. Zhongguo Zhong Yao Za Zhi 1993; 18:387-91. [PMID: 8267848] [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: 01/29/2023]
|
15
|
|
16
|
Gao XC, Xu JB, Qian TZ. Invariants and geometric phase for systems with non-Hermitian time-dependent Hamiltonians. Phys Rev A 1992; 46:3626-3630. [PMID: 9908551 DOI: 10.1103/physreva.46.3626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
17
|
|
18
|
Xu JB, Qian TZ, Gao XC. Time-evolution operator and geometric phase for a system with a su(1,1). Phys Rev A 1991; 44:1485-1490. [PMID: 9906109 DOI: 10.1103/physreva.44.1485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|