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Chiu HH, Lin SY, Zhang CG, Tsai CC, Tang SC, Kuo CH. A comparative study of plasma and dried blood spot metabolomics and its application to diabetes mellitus. Clin Chim Acta 2024; 552:117655. [PMID: 37977234 DOI: 10.1016/j.cca.2023.117655] [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: 06/16/2023] [Revised: 11/03/2023] [Accepted: 11/14/2023] [Indexed: 11/19/2023]
Abstract
Metabolomics has become a promising method for understanding pathological mechanisms. Plasma (PLS) is the most common sample type used for metabolomics studies, and dried blood spot (DBS) sampling has been regarded as a good strategy due to its unique characteristics. However, how results obtained from DBS can be correlated to results obtained from PLS remains unclear. To bridge the results and to investigate the feasibility of using DBS to study metabolomics, we performed a comparative study using 64 paired PLS and DBS samples. The number of features extracted from the two different sample types was investigated. The concentration correlations of the identified metabolites between the DBS and PLS were individually studied. Approximately 47 % showed a strong correlation, 19 % showed a moderate correlation, and 34 % showed a low or even negligible correlation. Finally, we applied both PLS- and DBS-based metabolomics to explore the dysregulated metabolites in diabetes mellitus (DM) patients. Thirty-two non-DM subjects and 32 DM patients were enrolled, and 2 significant metabolites were found in both PLS and DBS samples. In summary, detailed correlation information between PLS and DBS metabolites was first explored in this study, and it is anticipated that these results could facilitate future applications in DBS-based metabolomics.
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Affiliation(s)
- Huai-Hsuan Chiu
- Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan; School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Shin-Yi Lin
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Pharmacy, National Taiwan University Hospital, Taipei, Taiwan
| | - Chen-Guang Zhang
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chuan-Ching Tsai
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Sung-Chun Tang
- Stroke Center and Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Ching-Hua Kuo
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan; The Metabolomics Core Laboratory, Centers of Genomic and Precision Medicine, National Taiwan University, Taipei, Taiwan.
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2
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Fan CY, Zhang CG, Zhang PS, Chen Y, He JQ, Yin H, Gong XJ. Acute diquat poisoning case with multiorgan failure and a literature review: A case report. World J Clin Cases 2023; 11:6565-6572. [PMID: 37900248 PMCID: PMC10600979 DOI: 10.12998/wjcc.v11.i27.6565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/11/2023] [Accepted: 08/25/2023] [Indexed: 09/20/2023] Open
Abstract
BACKGROUND With the withdrawal of paraquat from the market, diquat is widely used, so the treatment of diquat poisoning has become one of the focuses of emergency poisoning diagnosis and treatment. CASE SUMMARY We studied the case of a 17-year-old male patient who drank 200 mL (20 g/100 mL) of diquat solution two hours before arriving at the hospital. Despite the use of treatments such as gastric lavage, hemoperfusion, continuous hemodialysis, glucocorticoids, and organ support, the patient's condition rapidly progressed to multiorgan failure, and he died 23.5 h after admission. CONCLUSION We summarized the clinical characteristics and treatment strategies of diquat poisoning through this case and performed a literature review to provide a basis and direction for clinical treatment.
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Affiliation(s)
- Chun-Yang Fan
- Emergency Department, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Chen-Guang Zhang
- Emergency Department, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Peng-Shu Zhang
- Emergency Department, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Yu Chen
- Emergency Department, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Jian-Qiang He
- Emergency Department, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - He Yin
- Emergency Department, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Xiao-Jie Gong
- Emergency Department, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
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3
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Chen Y, Chen D, Liu H, Zhang CG, Song LL. Staphylococcus aureus bacteremia and infective endocarditis in a patient with epidermolytic hyperkeratosis: A case report. World J Clin Cases 2022; 10:13418-13425. [PMID: 36683620 PMCID: PMC9850991 DOI: 10.12998/wjcc.v10.i36.13418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/21/2022] [Accepted: 12/05/2022] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Staphylococcus aureus bacteraemia (SAB) is among the leading causes of bacteraemia and infectious endocarditis. The frequency of infectious endocarditis (IE) among SAB patients ranges from 5% to 10%-12%. In adults, the characteristics of epidermolytic hyperkeratosis (EHK) include hyperkeratosis, erosions, and blisters. Patients with inflammatory skin diseases and some diseases involving the epidermis tend to exhibit a disturbed skin barrier and tend to have poor cell-mediated immunity.
CASE SUMMARY We describe a case of SAB and infective endocarditis in a 43-year-old male who presented with fever of unknown origin and skin diseases. After genetic tests, the skin disease was diagnosed as EHK.
CONCLUSION A breached skin barrier secondary to EHK, coupled with inadequate sanitation, likely provided the opportunity for bacterial seeding, leading to IE and deep-seated abscess or organ abscess. EHK may be associated with skin infection and multiple risk factors for extracutaneous infections. Patients with EHK should be treated early to minimize their consequences. If patients with EHK present with prolonged fever of unknown origin, IE and organ abscesses should be ruled out, including metastatic spreads.
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Affiliation(s)
- Yu Chen
- Department of Emergency, Beijing Tsinghua Changgung Hospital, Beijing 102218, China
| | - Dian Chen
- Department of Dermatology, Beijing Tsinghua Changgung Hospital, Beijing 102218, China
| | - Hao Liu
- Department of Pathology, Beijing Tsinghua Changgung Hospital, Beijing 102218, China
| | - Chen-Guang Zhang
- Department of Emergency, Beijing Tsinghua Changgung Hospital, Beijing 102218, China
| | - Lin-Lin Song
- Department of Emergency, Beijing Tsinghua Changgung Hospital, Beijing 102218, China
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Zhang CG, Wang Y, Duan M, Zhang XY, Chen XY. Klebsiella pneumoniae invasion syndrome: a case of liver abscess combined with lung abscess, endophthalmitis, and brain abscess. J Int Med Res 2022; 50:3000605221084881. [PMID: 35345919 PMCID: PMC8969510 DOI: 10.1177/03000605221084881] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Klebsiella pneumoniae invasion syndrome (KPIS) is a critical multi-site infection that is usually caused by highly virulent Klebsiella pneumonia. It is relatively common in Asian patients with diabetes and leads to sepsis, which has a high mortality rate. We report the case of a man in his early 40s who presented to the hospital with blurred vision in his left eye of 7 days’ duration and fever of 1 day’s duration. After a complete examination, he was diagnosed with KPIS on the basis of his liver abscessation, lung abscessation, endophthalmitis of the left eye and brain abscessation. After needle puncture and drainage of the left eye and liver abscess and anti-bacterial treatment with meropenem, the patient recovered well. When KPIS is suspected, attention should be paid to the sites of infection and the selection of the most appropriate antibiotics, but the most important aim should be to drain the lesions in a timely manner to improve the patient’s prognosis.
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Affiliation(s)
- Chen-Guang Zhang
- Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Yan Wang
- Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Min Duan
- Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Xiang-Yang Zhang
- Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Xu-Yan Chen
- Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
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Dai SM, Yu Q, Ma XJ, Wang ZY, Zhang YG, Zhu M, Zhang CG, Zhu Q, Jiang L, Jin YJ, Pan H, Wu HY. [Prevalence of Clonorchis sinensis infections in freshwater fish in mainland China: A meta-analysis]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 34:16-27. [PMID: 35266353 DOI: 10.16250/j.32.1374.2021230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To understand the real prevalence of Clonorchis sinensis infections in the freshwater fish in mainland China, so as to provide insights into clonorchiasis control and detection of freshwater fish. METHODS All literatures reporting the prevalence of C. sinensis infections in the freshwater fish, the second intermediate host of the parasite, were jointly retrieved in Chinese and English electronic databases from January 1, 2010 to December 31, 2020, including Wanfang Data, CNKI, PubMed, Web of Science, Embase and Cochrane Library. All studies were screened based on inclusion and exclusion criteria, and the quality of all enrolled literatures was evaluated. The pooled prevalence of C. sinensis infections in freshwater fish and its 95% confidence interval (CI) were estimated using the software Stata version 15.0, and subgroup analyses were performed to investigate the region-, season- and sample source-specific pooled prevalence of C. sinensis infections in freshwater fish. In addition, the sensitivity and publication bias of all included studies were analyzed. RESULTS A total of 40 eligible literatures were included in this study, including 37 Chinese literatures and 3 English literatures, and there were 10 high-quality literatures, 27 moderate-quality literatures and 3 low-quality literatures. A total of 53 species containing 37 959 freshwater fish were reported in these 40 studies, and 73.58% (39/53) of freshwater fish species were identified with C. sinensis infections. Meta-analysis showed 23.5% [95% CI: (0.19, 0.28)] pooled prevalence of C. sinensis infections in freshwater fish in mainland China, and subgroup analyses higher prevalence of C. sinensis infections in freshwater fish in northeastern China [35.7%, 95% CI: (0.22, 0.50)] than in central [25.9%, 95% CI: (0.04, 0.48)] and southern China [20.6%, 95% CI: (0.09, 0.32)], higher prevalence of C. sinensis infections in freshwater fish sampled in spring [44.1%, 95% CI: (0.35, 0.53)] than in autumn [6.7%, 95% CI: (0.05, 0.08)] and summer [3.3%, 95% CI: (-0.01, 0.07)], and higher prevalence of C. sinensis infections in freshwater fish sampled from natural water [25.2%, 95% CI: (0.17, 0.33)] than from retail trades [22.2%, 95% CI: (0.17, 0.28)] and breeding chain [12.3%, 95% CI: (0.03, 0.22)]. However, all included studies had a publication bias with a low sensitivity. CONCLUSIONS The prevalence of C. sinensis infections is high in freshwater fish in mainland China, and there are still challenges for clonorchiasis control. Reinforcement of health education, diagnostics development and food safety supervision is recommended in future clonorchiasis control programs.
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Affiliation(s)
- S M Dai
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - Q Yu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - X J Ma
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - Z Y Wang
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - Y G Zhang
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - M Zhu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - C G Zhang
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - Q Zhu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - L Jiang
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - Y J Jin
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - H Pan
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
| | - H Y Wu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200025, China
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Zhang XM, Yang LT, Zhang Q, Fan QX, Zhang C, You Y, Zhang CG, Lin TZ, Xu L, Moutari S, Moore JE, Pazo EE, He W. Reliability of Chinese web-based ocular surface disease index questionnaire in dry eye patients: a randomized, crossover study. Int J Ophthalmol 2021; 14:834-843. [PMID: 34150537 DOI: 10.18240/ijo.2021.06.07] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [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: 09/25/2020] [Accepted: 01/22/2021] [Indexed: 01/11/2023] Open
Abstract
AIM To assess the reliability of web-based version of ocular surface disease index in Chinese (C-OSDI) on clinically diagnosed dry eye disease (DE) patients. METHODS A total of 254 Chinese participants (51% male, 129/254; mean age: 27.90±9.06y) with DED completed paper- and web-based versions of C-OSDI questionnaires in a randomized crossover design. Ophthalmology examination and DED diagnosis were performed prior to the participants being invited to join the study. Participants were randomly designated to either group A (paper-based first and web-based second) or group B (web-based first and paper-based second). Final data analysis included participants that had successfully completed both versions of the C-OSDI. Demographic characteristics, test-retest reliability, and agreement of individual items, subscales, and total score were evaluated with intraclass correlation coefficients (ICC), Spearman rank correlation, Wilcoxon test and Rasch analysis. RESULTS Reliability indexes were adequate, Pearson correlation was greater than 0.8 and ICCs range was 0.827 to 0.982; total C-OSDI score was not statistically different between the two versions. The values of mean-squares fit statistics were very low compared to 1, indicating that the responses to the items by the model had a high degree of predictability. While comparing the favorability 72% (182/254) of the participants preferred web-based assessment. CONCLUSION Web-based C-OSDI is reliable in assessing DED and correlation with the paper-based version is significant in all subscales and overall total score. Web-based C-OSDI can be administered to assess individuals with DED as participants predominantly favored online assessment.
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Affiliation(s)
- Xin-Mei Zhang
- Department of Ophthalmology, He Eye Specialists Hospital, Shenyang 110034, Liaoning Province, China.,The Second Affiliated Hospital of Dalian Medical University, Dalian 116000, Liaoning Province, China
| | - Lan-Ting Yang
- Department of Ophthalmology, He Eye Specialists Hospital, Shenyang 110034, Liaoning Province, China.,The Second Affiliated Hospital of Dalian Medical University, Dalian 116000, Liaoning Province, China
| | - Qing Zhang
- Department of Ophthalmology, He Eye Specialists Hospital, Shenyang 110034, Liaoning Province, China.,The Second Affiliated Hospital of Dalian Medical University, Dalian 116000, Liaoning Province, China
| | - Qing-Xia Fan
- Department of Ophthalmology, He Eye Specialists Hospital, Shenyang 110034, Liaoning Province, China
| | - Can Zhang
- Department of Ophthalmology, He Eye Specialists Hospital, Shenyang 110034, Liaoning Province, China
| | - Yue You
- Department of Ophthalmology, He Eye Specialists Hospital, Shenyang 110034, Liaoning Province, China
| | - Chen-Guang Zhang
- Department of Ophthalmology, He Eye Specialists Hospital, Shenyang 110034, Liaoning Province, China
| | - Tie-Zhu Lin
- Department of Ophthalmology, He Eye Specialists Hospital, Shenyang 110034, Liaoning Province, China
| | - Ling Xu
- Department of Ophthalmology, He Eye Specialists Hospital, Shenyang 110034, Liaoning Province, China
| | - Salissou Moutari
- School of Mathematics and Physics, Queens University Belfast, University Road, Belfast, Northern Ireland BT7 1NN, United Kingdom
| | - Jonathan E Moore
- Cathedral Eye Clinic, 89-91 Academy Street, Belfast, Northern Ireland BT1 2LS, United Kingdom.,Biomedical Sciences Research Institute, University of Ulster, Coleraine, Northern Ireland BT52 1SA, United Kingdom
| | - Emmanuel E Pazo
- Department of Ophthalmology, He Eye Specialists Hospital, Shenyang 110034, Liaoning Province, China
| | - Wei He
- Department of Ophthalmology, He Eye Specialists Hospital, Shenyang 110034, Liaoning Province, China
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Zhang CG, Duan M, Zhang XY, Wang Y, Wu S, Feng LL, Song LL, Chen XY. Klebsiella pneumoniae infection secondary to spontaneous renal rupture that presents only as fever: A case report. World J Clin Cases 2021; 9:2602-2610. [PMID: 33889626 PMCID: PMC8040190 DOI: 10.12998/wjcc.v9.i11.2602] [Citation(s) in RCA: 3] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/19/2021] [Accepted: 02/10/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Spontaneous renal rupture is a rare disease in the clinic. The causes of spontaneous renal rupture include extrarenal factors, intrarenal factors, and idiopathic factors. Reports on infection secondary to spontaneous renal rupture and the complications of spontaneous renal rupture are scarce. Furthermore, there are few patients with spontaneous renal rupture who present only with fever.
CASE SUMMARY We present the case of a 52-year-old female patient who was admitted to our hospital. She presented only with fever, and the cause of the disease was unclear. She underwent a contrast-enhanced computed tomography (CT) scan, which showed that the left renal capsule had a crescent-shaped, low-density shadow; the perirenal fat was blurred, and exudation was visible with no sign of calculi, malignancies, instrumentation, or trauma. Under ultrasound guidance, a pigtail catheter was inserted into the hematoma, and fluid was drained and used for the bacterial test, which proved the presence of Klebsiella pneumoniae. Two months later, abdominal CT showed that the hematoma was absorbed, so the drainage tube was removed. The abdominal CT was normal after 4 mo.
CONCLUSION Spontaneous renal rupture due to intrarenal factors causes a higher proportion of shock and is more likely to cause anemia.
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Affiliation(s)
- Chen-Guang Zhang
- Department of Emergency Medicine, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Min Duan
- Department of Emergency Medicine, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Xiang-Yang Zhang
- Department of Emergency Medicine, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Yan Wang
- Department of Emergency Medicine, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Sheng Wu
- Department of Emergency Medicine, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Li-Li Feng
- Department of Emergency Medicine, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Lin-Lin Song
- Department of Emergency Medicine, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Xu-Yan Chen
- Department of Emergency Medicine, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
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Yue SL, Zhang CG, Yuan SM, Wang P, Zhang X, Kan LH, Gong YH, Xiao SY, Shen FH. [Analysis of occupational health input-output of a iron mine in Hebei province]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:20-24. [PMID: 33535334 DOI: 10.3760/cma.j.cn121094-20200102-00007] [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 relationship between input and output of occupational health funds, and to provide basis for relevant departments to make decisions. Methods: In September 2018, a state-owned iron ore in Hebei Province (mining history of more than 10 years, which can represent the general type of iron ore) was selected as the research object. Through the investigation and collection of enterprise general situation, occupational health input, loss and output related indicators, the iron mine occupational health expenditure input-output table and model were established, and the digital relationship between the investment and output was solved by MATLAB software. Results: The labor consumption in the departments of underground mining, open pit mining, crushing and rock discharging, transportation, tailings and mineral processing (taking labor wages as reference) were 756.46, 1.281.78, 987.61, 1 570.71, 50.956 and 18.9116 million yuan/year respectively. The output value of each sector is 11 207.19, 18 989.95, 15 176.40, 25 294.00, 7.704.94 and 280.1797 million yuan/year respectively. The ratio of health input to total output was 0.004 5, and the ratio of occupational health input to output was 1/0.046. Conclusion: The input-output table model of occupational health in iron mine can reflect the relationship between input and output of occupational health funds. The input situation of the coal mine is poor, and the input does not bring obvious occupational health benefits.
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Affiliation(s)
- S L Yue
- Affiliated Hospital, North China University of Science and Technology, Tangshan 063000, China; School of Public Health, North China University of Science and Technology, Tangshan 063000, China
| | - C G Zhang
- Affiliated Hospital, North China University of Science and Technology, Tangshan 063000, China
| | - S M Yuan
- School of Public Health, North China University of Science and Technology, Tangshan 063000, China
| | - P Wang
- School of Public Health, North China University of Science and Technology, Tangshan 063000, China
| | - X Zhang
- School of Public Health, North China University of Science and Technology, Tangshan 063000, China
| | - L H Kan
- School of Public Health, North China University of Science and Technology, Tangshan 063000, China
| | - Y H Gong
- School of Public Health, North China University of Science and Technology, Tangshan 063000, China
| | - S Y Xiao
- Tangshan City Center for Disease Control and Prevention, Tangshan 063000, China
| | - F H Shen
- School of Public Health, North China University of Science and Technology, Tangshan 063000, China
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Niu J, Gao RQ, Cui MT, Zhang CG, Li ST, Cheng S, Ding W. Suppression of TCAB1 expression induced cellular senescence by lessening proteasomal degradation of p21 in cancer cells. Cancer Cell Int 2021; 21:26. [PMID: 33413389 PMCID: PMC7788802 DOI: 10.1186/s12935-020-01745-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 12/31/2020] [Indexed: 11/25/2022] Open
Abstract
Background TCAB1, a.k.a. WRAP53β or WDR79, is an important molecule for the maintenance of Cajal bodies and critically involved in telomere elongation and DNA repair. Upregulation of TCAB1 were discovered in a variety types of cancers. However, the function of TCAB1 in tumor cell senescence remains absent. Methods The TCAB1 knockdown cell lines were constructed. The expression levels of TCAB1, p21, p16 and p53 were detected by qRT-PCR and western blotting. Staining of senescence-associated β-galactosidase was used to detect senescent cells. The ubiquitination of the p21 was analysed by immunoprecipitation and in vivo ubiquitination assay. TCGA databases were employed to perform in silico analyses for the mRNA expression of TCAB1, p21, p16 and p53. Results Here, we discovered that knockdown of TCAB1 induced rapid progression of cellular senescence in A549, H1299 and HeLa cells. In exploiting the mechanism underlining the role of TCAB1 on senescence, we found a significant increase of p21 at the protein levels upon TCAB1 depletion, whereas the p21 mRNA expression was not altered. We verified that TCAB1 knockdown was able to shunt p21 from proteasomal degradation by regulating the ubiquitination of p21. In rescue assays, it was demonstrated that decreasing the expression of p21 or increasing the expression of TCAB1 were able to attenuate the cellular senescence process induced by TCAB1 silencing. Conclusions This study revealed the importance of TCAB1 for its biological functions in the regulation of cell senescence. Our results will be helpful to understand the mechanisms of senescence in cancer cells, which could provide clues for designing novel strategies for developing effective treatment regimens.
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Affiliation(s)
- Jing Niu
- School of Basic Medical Sciences, Capital Medical University, 10 You'an Men West, Beijing, P. R. China.,Beijing Key Laboratory for Tumor Invasion and Metastasis Research, Capital Medical University, 10 You'an Men West, Beijing, P. R. China
| | - Rui-Qi Gao
- School of Basic Medical Sciences, Capital Medical University, 10 You'an Men West, Beijing, P. R. China
| | - Meng-Tian Cui
- School of Basic Medical Sciences, Capital Medical University, 10 You'an Men West, Beijing, P. R. China
| | - Chen-Guang Zhang
- School of Basic Medical Sciences, Capital Medical University, 10 You'an Men West, Beijing, P. R. China.,Beijing Key Laboratory for Tumor Invasion and Metastasis Research, Capital Medical University, 10 You'an Men West, Beijing, P. R. China
| | - Shen-Tao Li
- Central Facility of Biomedical Research, Capital Medical University, 10 You'an Men West, Beijing, P. R. China
| | - Shan Cheng
- School of Basic Medical Sciences, Capital Medical University, 10 You'an Men West, Beijing, P. R. China.
| | - Wei Ding
- School of Basic Medical Sciences, Capital Medical University, 10 You'an Men West, Beijing, P. R. China.
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10
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Wang L, Zhang CG, Jia YL, Hu L. Tissue Inhibitor of Metalloprotease-1 (TIMP-1) Regulates Adipogenesis of Adipose-derived Stem Cells (ASCs) via the Wnt Signaling Pathway in an MMP-independent Manner. Curr Med Sci 2020; 40:989-996. [PMID: 33123912 DOI: 10.1007/s11596-020-2265-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 05/14/2020] [Indexed: 12/30/2022]
Abstract
Tissue inhibitor of metalloprotease-1 (TIMP-1) is a tissue inhibitor of matrix metalloproteinases (MMPs). It however exerts multiple effects on biological processes, such as cell growth, proliferation, differentiation and apoptosis, in an MMP-independent manner. This study aimed to examine the role of TIMP-1 in adipogenesis of adipose-derived stem cells (ASCs) and the underlying mechanism. We knocked down the TIMP-1 gene in ASCs through lentiviral vectors encoding TIMP-1 small interfering RNA (siRNA), and then found that the knockdown of TIMP-1 in ASCs promoted the adipogenic differentiation of stem cells and inhibited the Wnt/β-catenin signaling pathway in ASCs. We also noted that mutant TIMP-1 without the inhibitory activity on MMPs promoted the activation of Wnt/β-catenin pathway as well as the recombinant wild type TIMP-1 did, which indicated that the effect of TIMP-1 on Wnt/β-catenin pathway was MMP-independent. Our study suggested that TIMP-1 negatively regulated the adipogenesis of ASCs via the Wnt/β-catenin signaling pathway in an MMP-independent manner.
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Affiliation(s)
- Lu Wang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chen-Guang Zhang
- Stomatological Hospital, Southern Medical University, Guangzhou, 510000, China
| | - Yu-Lin Jia
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Li Hu
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Ye Q, Wu YH, Gao Y, Li ZH, Gu WJ, Zhang CG. A histological study of mouse tissues and water loss following lyophilization. Biotech Histochem 2019; 95:325-332. [PMID: 31850810 DOI: 10.1080/10520295.2019.1695945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Lyophilization is a practical method for product storage and transportation; it commonly is used in the food and pharmaceutical industries. Lyophilization also is used for preserving biological samples such as serum, plasma and animal tissues. We found that lyophilization does not affect the stability of RNAs and proteins in tissue samples. To investigate histological characteristics, we prepared lyophilized tissues for paraffin sectioning and hematoxylin and eosin (H & E) staining. We also measured water loss from organs during lyophilization. We used immunohistochemistry of frozen brain sections to identify potential protective effects of three concentrations of sucrose, glucose and trehalose against the effects of lyophilization. H & E staining revealed vacuoles in heart, lung, liver, kidney, spleen and brain after lyophilization without pretreatments, especially heart and kidney. We found that 10% solutions of sucrose, glucose and trehalose helped preserve tissue morphology. Immunohistochemistry of frozen brain tissue showed that 10% glucose and 30% sucrose preserved cellular characteristics and immunogenicity following lyophilization. Lyophilization removed > 70% of the water from organs, and lyophilized tissues without protectants were not suitable for histological study. Overall, we found that 10% glucose helped preserve both optimal tissue morphology and immunogenicity of freeze-dried tissue.
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Affiliation(s)
- Q Ye
- Clinical Aviation Medicine Laboratory, Air Force Medical Center, PLA, Beijing 100142, China.,Beijing Institute of Radiation Medicine, State Key Laboratory of Proteomics, Beijing 100850, China
| | - Y H Wu
- Beijing Institute of Radiation Medicine, State Key Laboratory of Proteomics, Beijing 100850, China
| | - Y Gao
- Beijing Institute of Radiation Medicine, State Key Laboratory of Proteomics, Beijing 100850, China
| | - Z H Li
- Beijing Institute of Radiation Medicine, State Key Laboratory of Proteomics, Beijing 100850, China
| | - W J Gu
- Clinical Aviation Medicine Laboratory, Air Force Medical Center, PLA, Beijing 100142, China
| | - C G Zhang
- Beijing Institute of Radiation Medicine, State Key Laboratory of Proteomics, Beijing 100850, China
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12
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Guo T, Wen XZ, Li ZY, Han HB, Zhang CG, Bai YH, Xing XF, Cheng XJ, Du H, Hu Y, Wang XH, Jia YN, Nie ML, Xie M, Li QD, Ji JF. ISL1 predicts poor outcomes for patients with gastric cancer and drives tumor progression through binding to the ZEB1 promoter together with SETD7. Cell Death Dis 2019; 10:33. [PMID: 30674889 PMCID: PMC6393520 DOI: 10.1038/s41419-018-1278-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 11/29/2018] [Accepted: 11/30/2018] [Indexed: 02/06/2023]
Abstract
ISL1, a LIM-homeodomain transcription factor, serves as a biomarker of metastasis in multiple tumors. However, the function and underlying mechanisms of ISL1 in gastric cancer (GC) have not been fully elucidated. Here we found that ISL1 was frequently overexpressed in GC FFPE samples (104/196, 53.06%), and associated with worse clinical outcomes. Furthermore, the overexpression of ISL1 and loss-of-function of ISL1 influenced cell proliferation, invasion and migration in vitro and in vivo, including GC patient-derived xenograft models. We used ChIP-seq and RNA-seq to identify that ISL1 influenced the regulation of H3K4 methylation and bound to ZEB1, a key regulator of the epithelial–mesenchymal transition (EMT). Meanwhile, we validated ISL1 as activating ZEB1 promoter through influencing H3K4me3. We confirmed that a complex between ISL1 and SETD7 (a histone H3K4-specific methyltransferase) can directly bind to the ZEB1 promoter to activate its expression in GC cells by immunoprecipitation, mass spectrometry, and ChIP-re-ChIP. Moreover, ZEB1 expression was significantly positively correlated with ISL1 and was positively associated with a worse outcome in primary GC specimens. Our paper uncovers a molecular mechanism of ISL1 promoting metastasis of GC through binding to the ZEB1 promoter together with co-factor SETD7. ISL1 might be a potential prognostic biomarker of GC.
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Affiliation(s)
- Ting Guo
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, China
| | - Xian-Zi Wen
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, China
| | - Zi-Yu Li
- Department of Gastrointestinal Surgery, Peking University Cancer Hospital & Institute, Beijing, China
| | - Hai-Bo Han
- The Tissue Bank, Peking University Cancer Hospital & Institute, Beijing, China
| | - Chen-Guang Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Yan-Hua Bai
- Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Xiao-Fang Xing
- The Tissue Bank, Peking University Cancer Hospital & Institute, Beijing, China
| | - Xiao-Jing Cheng
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, China
| | - Hong Du
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, China
| | - Ying Hu
- The Tissue Bank, Peking University Cancer Hospital & Institute, Beijing, China
| | - Xiao-Hong Wang
- The Tissue Bank, Peking University Cancer Hospital & Institute, Beijing, China
| | - Yong-Ning Jia
- Department of Gastrointestinal Surgery, Peking University Cancer Hospital & Institute, Beijing, China
| | - Meng-Lin Nie
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, China
| | - Meng Xie
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, China
| | - Qing-Da Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, China
| | - Jia-Fu Ji
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, China. .,Department of Gastrointestinal Surgery, Peking University Cancer Hospital & Institute, Beijing, China.
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13
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Su Q, Zhu EC, Qu YL, Wang DY, Qu WW, Zhang CG, Wu T, Gao ZH. Serum level of co-expressed hub miRNAs as diagnostic and prognostic biomarkers for pancreatic ductal adenocarcinoma. J Cancer 2018; 9:3991-3999. [PMID: 30410604 PMCID: PMC6218787 DOI: 10.7150/jca.27697] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 07/29/2018] [Indexed: 02/06/2023] Open
Abstract
Background: Sensitive and specific non-invasive biomarkers are urgently needed in order to improve the survival of patients with pancreatic ductal adenocarcinoma (PDAC), which is the fourth leading cause of cancer-related death. We aim to identify serum hub miRNAs as potential diagnostic and prognostic biomarkers for PDAC. Methods: A total of 2578 serum miRNA expression data from 88 PDAC patients and 19 healthy subjects were downloaded from the Gene Expression Omnibus database. Weighted gene co-expression network analysis (WGCNA) was constructed and significant modules were extracted from the network by WGCNA R package. Network modules and hub miRNAs closely related to PDAC were identified. The prognostic value of hub miRNAs was assessed by Kaplan-Meier overall survival analysis. Results: Two modules strongly associated with PDAC were identified by WGCNA, which were labeled as turquoise and brown respectively. Within each module, twenty hub miRNAs were found. At the functional level, turquoise module was mainly associated with tumorigenesis pathways such as P53 and WNT signaling pathway, while the brown module was mostly related to the pathways of cancer such as RNA transport and MAPK signaling pathway. Utilizing overall survival analyses, five “real” miRNAs were able to stratify PDAC patients into low-risk and high-risk groups. Conclusions: The association of specific Hub miRNAs with the development of pancreatic cancer was established by WGCNA analysis. Five miRNAs (mir-16-2-3p, mir-890, mir-3201, mir-602, and mir-877) were identified as potential diagnostic and prognostic biomarkers for PDAC.
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Affiliation(s)
- Qiang Su
- Department of Oncology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Emily C Zhu
- Desautels Faculty of Management, McGill University, Montreal, Quebec, H3A 1G5, Canada
| | - Yao-Long Qu
- Schulich School of Music, McGill University, Montreal, Quebec, H3A 1E3, Canada
| | - Di-Ya Wang
- Laboratory of Biorheology and Medical Ultrasonics, University of Montreal Hospital Research Center, Montreal, Quebec, H2X0A9, Canada
| | - Wei-Wei Qu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China
| | - Chen-Guang Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Ting Wu
- Department of Mathematics, Nanjing University, 210023, China
| | - Zu-Hua Gao
- Department of Pathology, Research Institute of McGill University Health Center, Montreal, Quebec, H4A 3J1, Canada
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Zhang CG, Zhou SY, Liu P, Qin Y, Yang JL, He XH, Shi YK. [Clinical characteristics and prognosis analysis of 46 cases of newly diagnosed localized head and neck rhabdomyosarcoma]. Zhonghua Yi Xue Za Zhi 2018; 98:2722-2726. [PMID: 30220168 DOI: 10.3760/cma.j.issn.0376-2491.2018.34.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To analyze the clinical characteristics and prognosis of newly diagnosed localized head and neck rhabdomyosarcoma. Methods: Cases of newly diagnosed localized head and neck rhabdomyosarcoma between January 2006 and December 2016 were analyzed retrospectively. The clinical features of the patients were described. The Kaplan-Meier method was used to analyze the survival rate under different combined modality therapy and the survival rate with or without chemotherapy. The prognostic factors were analyzed by Cox model. Results: A total of 46 patients were included in this study. Among them, the median follow-up time was 77 months and the median relapse free survival time was 13 months. The relapse free survival time of 5 cases with inadequate local treatment and without combined chemotherapy was 5 months as control, and it was 7 months (P=0.110) in 11 cases with adequate local treatment without combined chemotherapy. Then in 7 cases with inadequate local treatment combined with chemotherapy and 23 cases with adequate local treatment combined with chemotherapy, it was 13 months (P=0.007) and 21 months (P<0.001), respectively. The median relapse-free survival time of chemotherapy patients was significantly longer than that of those without chemotherapy (21 vs 6 months, P=0.018). The effect of combined modality therapy was evaluated according to the adequacy of local treatment and whether to receive systemic chemotherapy, and the combined modality therapy degree was the independent prognostic factor in Cox's proportional hazards regression model (P=0.004). Conclusions: Rhabdomyosarcoma in head and neck is a highly malignant tumor with high relapse rate and easy metastasis. In patients with tolerable condition, systemic chemotherapy and adequate combined modality therapy are recommended to improve relapse-free survival.
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Affiliation(s)
- C G Zhang
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, National Center for Anticancer Drug Clinical Study, Beijing 100021, China
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Han Y, Qin Y, He XH, Yang JL, Liu P, Zhang CG, Zhou LQ, Zhou SY, Gui L, Song YW, Sun Y, Shi YK. [Retrospective analysis of the clinical features and prognostic factors of 370 patients with advanced-stage diffuse large B-cell lymphoma]. Zhonghua Zhong Liu Za Zhi 2018; 40:456-461. [PMID: 29936773 DOI: 10.3760/cma.j.issn.0253-3766.2018.06.011] [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: The clinical features and prognosis of diffuse large B-cell lymphoma (DLBCL) were analyzed to optimize the treatment. Methods: We retrospectively collected the clinical data of patients with advanced-stage DLBCL from January 2006 to December 2012 in National Cancer Center/Cancer Hospital. The demographic characteristics, clinical stage, histological diagnosis, treatment and prognostic characteristics of these patients were analyzed. Results: A total of 370 patients with median age of 55 years old were recruited in the study. The male-to-female ratio was 1.3∶1. Among the 361 patients who underwent therapy, 280 cases received chemotherapy alone, 65 cases received chemoradiotherapy, and 16 cases received chemotherapy combined with autologous hematopoietic stem cell transplantation (AHSCT). The median follow-up period was 89 months, the 5-year overall survival (OS) rate of the entire cohort was 42.9%. The 5-year OS rate of chemotherapy alone, chemoradiotherapy and chemotherapy combined with AHSCT were 36.8%, 58.5%, 87.5%, respectively. The 5-year OS rate were significantly different between chemoradiotherapy and chemotherapy alone (P=0.001), and between chemotherapy combined with AHSCT and chemoradiotherapy (P=0.040). Univariate analysis showed that the age, Eastern Cooperative Oncology Group performance status (ECOG PS) score, Ann Arbor stage, B symptom, bulky disease, number of extranodal sites, Ki-67 index, lactate dehydrogenase (LDH), β2-microglobulin (β2-MG), international prognostic index (IPI), therapeutic manner and chemotherapy combined with rituximab were significantly associated with the prognosis of advanced DLBCL patients (all P<0.05). Multivariate analysis demonstrated that the age >60 years, Ann Arbor stage IV, with B symptom, with bulky disease, ECOG PS≥1, Ki-67 index > 90%, CD5 expression, up-regulation of serum LDH and β2-MG, and chemotherapy without rituximab were related with the poor prognosis of patients with advanced-stage DLBCL (all P<0.05). Conclusions: Chemotherapy combined with rituximab can improve the outcome of patients with advanced-stage DLBCL. The age, stage, B symptom, bulky disease, ECOG PS score, Ki-67 index, CD5 expression, LDH, β2-MG and chemotherapy combined with rituximab are associated with the prognosis of these patients.
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Affiliation(s)
- Y Han
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - Y Qin
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - X H He
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - J L Yang
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - P Liu
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - C G Zhang
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - L Q Zhou
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - S Y Zhou
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - L Gui
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - Y W Song
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - Y Sun
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - Y K Shi
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
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16
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Han Y, Qin Y, He XH, Yang JL, Liu P, Zhang CG, Zhou LQ, Zhou SY, Gui L, Sun Y, Shi YK. [Prognostic significance of inflammatory indicators for advanced-stage diffuse large B-cell lymphoma]. Zhonghua Yi Xue Za Zhi 2018; 98:1250-1255. [PMID: 29747314 DOI: 10.3760/cma.j.issn.0376-2491.2018.16.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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 prognostic significance of inflammatory indicator, neutrophil to lymphocyte ratio (NLR) and platelet to lymphocyte ratio (PLR), for advanced-stage diffuse large B-cell lymphoma (DLBCL). Methods: The data of advanced stage DLBCL cases was retrospectively collected, and all the patients were seen from January 2006 to December 2012 in National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences. The patients were divided into the low NLR group (≤5∶1) and the high NLR group (>5∶1); the low PLR group (≤300∶1) and the high PLR group (>300∶1). Kaplan-Meier method was used to compare the survival rates between groups, multivriate Cox proportional hazard regression analysis was performed to assess the independent prognostic significance of clinical and histopathological variables on events or OS. Results: A total of 361 patients were included in the study. Under a median follow-up of 89 months, the 5-year overall survival (OS) and progression-free survival (PFS) of the whole group were 42.9% and 31.3%, respectively. The 5-year OS rate and PFS rate were 48.2% and 35.1% in the low NLR group, which were 24.1% and 17.7% in the high NLR group, respectively. The 5-year OS rates and PFS rate were 45.4% and 33.2% in the low PLR group, which were 29.8% and 21.1% in the high PLR group (all P<0.05). Univariate analysis showed that NLR >5∶1, PLR >300∶1, age>60 year, ECOG PS>1 score, stage Ⅳ, B symptom, bulky disease, number of extranodal sites >1, Ki-67index >90%, LDH elevated and β2-MG elevated had significant influence on prognosis(all P<0.05). Multivariate analysis demonstrated that NLR, stage, B symptom, bulky disease, ECOG PS score, Ki-67 index and β2-MG were associated with poor prognosis in the advanced-stage DLBCL. Conclusions: NLR was simple and feasible biomarker for prognosis of advanced-stage DLBCL patients.
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Affiliation(s)
- Y Han
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
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Yao QF, Zhang CG, Dong GP. Thrombin combined with somatostatin for treatment of patients with upper gastrointestinal hemorrhage: Impact on inflammatory factors and coagulation function. Shijie Huaren Xiaohua Zazhi 2018; 26:343-348. [DOI: 10.11569/wcjd.v26.i5.343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM To evaluate the effect of thrombin combined with somatostatin on inflammatory factors and coagulation function in patients with upper gastrointestinal hemorrhage.
METHODS Seventy patients with upper gastrointestinal bleeding treated from July 2015 to June 2017 were divided into either an observation group or a control group. The control group was given octreotide alone, and the observation group was given thrombin combined with octreotide. After treatment, serum inflammatory factors, coagulation function, clinical efficacy, and adverse reactions were compared between the two groups.
RESULTS Time to hemostasis was significantly shorter in the observation group than in the control group (16.75 h ± 3.12 h vs 25.46 h ± 3.45 h, t = 11.078, P < 0.01). The effective rate was significantly higher in the observation group than in the control group [94.29% (33/35) vs 77.14% (27/35), χ2 = 4.200, P < 0.05]. Serum tumor necrosis factor α (5.32 ng/L ± 0.75 ng/L vs 8.02 ng/L ± 1.24 ng/L, t = 11.022, P < 0.01 ) and interleukin (IL)-6 levels (20.12 ng/L ± 3.45 ng/L vs 31.26 ng/L ± 4.12 ng/L, t = 12.264, P < 0.01) were significantly lower and serum IL-2 (6.75 ng/L ± 1.02 ng/L vs 4.68 ng/L ± 0.76 ng/L, t = 10.349, P < 0.01) was significantly higher in the observation group than in the control group. Prothrombin time (13.32 s ± 2.2 s vs 16.84 s ± 3.24 s, t = 5.249, P < 0.05) and activated partial thromboplastin time (33.12 s ± 4.56 s vs 40.18 s ± 5.35 s, t = 5.942, P < 0.05) were significantly lower, and platelets (67.82 × 109/L ± 8.36 × 109/L vs 58.75 × 109/L ± 6.82 × 109/L, t = 4.973, P < 0.05) and plasma fibrinogen (315.45 g/L ± 45.24 g/L vs 284.72 g/L ± 40.15 g/L, t = 3.006, P < 0.05) were significantly higher in the observation group than in the control group.
CONCLUSION Thrombin combined with somatostatin can shorten hemostatic time and improve clinical efficacy in patients with upper gastrointestinal hemorrhage, which may be related to reducing inflammatory symptoms and improving coagulation function.
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Affiliation(s)
- Quan-Fu Yao
- Department of Internal Medicine, Huzhou People's Hospital, Huzhou 313008, Zhejiang Province, China
| | - Chen-Guang Zhang
- Pinghu City Public Security Bureau Detention Center, Pinghu 314200, Zhejiang Province, China
| | - Guo-Ping Dong
- Pinghu City Public Security Bureau Detention Center, Pinghu 314200, Zhejiang Province, China
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Guo SQ, Wang LC, Zhang CG, Qi GC, Gu BC, Liu L, Yuan ZH. A unique semiconductor-carbon-metal hybrid structure design as a counter electrode in dye-sensitized solar cells. Nanoscale 2017; 9:6837-6845. [PMID: 28497832 DOI: 10.1039/c7nr00718c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [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
The catalytic activity of counter electrodes (CEs) severely restricts the photovoltaic conversion efficiency of dye-sensitized solar cells. However, electrons trapped by bulk defects greatly reduce the catalytic activity of the CE. In this study, we report a novel In2S3-C-Au hybrid structure designed by simply decorating Au particles on the surface of carbon-coated hierarchical In2S3 flower-like architectures, which could avoid the abovementioned problems. This effect can be attributed to the unique contribution of indium sulfide, carbon, and Au from the hybrid structure, as well as to their synergy. Electrochemical measurements revealed that the hybrid structure possessed high catalytic activity and electrochemical stability for the interconversion of the redox couple I3-/I-. Moreover, this superior performance can be incorporated into the dye-sensitized solar cells system. We used this hybrid structure as a counter electrode by casting it on an FTO substrate to form a film, which displayed better photovoltaic conversion efficiency (8.91%) than the commercial Pt counterpart (7.67%).
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Affiliation(s)
- Sheng-Qi Guo
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
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Sun XL, Yang ZM, Zhang JJ, Yuan ZJ, Li JY, Pang GZ, Zhang CG. [Polymorphism of Platelet Specific Antigens (HPA-1-5, 15) in Han Donors in the North Area of Henan Province]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2016; 24:602-6. [PMID: 27151037 DOI: 10.7534/j.issn.1009-2137.2016.02.055] [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: 11/22/2022]
Abstract
OBJECTIVE To study the gene polymorphism distribution characteristics of human platelet HPA-1-5 and 15 blood group antigens and construct a certain scale of platelet HPA database in the north area of Henan Province so as to provide platelet apheresis for clinical departments. METHODS Using polymerase chain reaction with sequence-specific primers (PCR-SSP), the genotyping of HPA-1-5 and 15 system was carried out; the periperal blood of 500 healthy Han donors in north area of Henan Province was collected randomly, the gene and genotype frequencies were detected by direct counting method, and the population distribution frequncy of HPA genes was analyzed by Hardy-Weinberg balance test, and compared with other regions and ethnics by using χ(2) test. RESULTS There was statistically significant (P < 0.05) of increase HPA-3b and HPA-5a in North area of Henan Province, compared with Chinese Han population; the HPA-3b and 5a increase and HPA-2a decrease were statistically significant (P < 0.05), compared with Ethnic minority of China. There was partly increase of HPA-1a, 2a, 3a and 5a, compared with different regions and ethnic in abroad. HPA allele genes of 500 Han donors in the North area of Henan Province were as follows: 0.985 and 0.015 for 1a and 1b; 0.924 and 0.076 for 2a and 2b; 0.469 and 0.531 for 3a and 3b; 1.000 and 1.000 for 4a and 5a; 0.532 and 0.468 for 15a and 15b, respectively. HPA allele gene frequencies were 1aa0.970, 1ab0.030; 2aa0.848, 2ab0.152; 3aa0.222, 3ab0.494, 3bb0.284; 4aa1.000; 5aa1.000; 15aa0.282, 15ab0.500, 15bb0.218. Compared with other regions and ethnic, HPA gene frequencies partly had statistical significance. CONCLUSION Distribution of HPA allele frequencies in the North area of Henan province is in accordence with the Hardy-Weinberg law. There are race and regional differences in HPA allele gene frequencies, compared with other regions and countries. And the HPA systems HPA-3 and 15 display the genetic polymorphisms, which provides a theoretical basis for the relevant research of the same type platelet infusion and alloimmune thrombocytopenia.
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Affiliation(s)
- Xue-Lan Sun
- Henan Province Collaborative Innovation Center of Molecular Diagnosis and Laboratorial Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang 453003, Henan Province, China
| | - Zhi-Mei Yang
- Henan Province Collaborative Innovation Center of Molecular Diagnosis and Laboratorial Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang 453003, Henan Province, China
| | - Jing-Jing Zhang
- Henan Province Collaborative Innovation Center of Molecular Diagnosis and Laboratorial Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang 453003, Henan Province, China
| | - Zhi-Jun Yuan
- General Hospital of Puyang Oil Field, Puyang 457001, Henan Province, China
| | - Jun-Ying Li
- Henan Blood Center, Zhengzhou 45000, Henan Province, China
| | - Gui-Zhi Pang
- Xinxiang Blood Center, Xinxiang 453000, Henan Province, China
| | - Chen-Guang Zhang
- Henan Province Collaborative Innovation Center of Molecular Diagnosis and Laboratorial Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang 453003, Henan Province, China. E-mail:
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Gui L, He XH, Liu P, Yang JL, Qin Y, Zhou SY, Yang S, Zhang CG, Shi YK. [Clinical features and outcomes: analysis of 9 cases of HIV-negtive plasmablastic lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:762-767. [PMID: 27719718 PMCID: PMC7342121 DOI: 10.3760/cma.j.issn.0253-2727.2016.09.007] [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] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the clinical features and outcomes of HIV-negtive plasmablastic lymphoma (PBL). Methods: Nine patients with HIV-negtive PBL were diagnosed and treated between January 2006 and January 2016. The clinical and follow-up data were analyzed retrospectively. Results: The median age was 56 years (range 30-77 years) with a male-to-female ratio of 2∶1. Nobody had underlying diseases associated with immunosuppression. Primary extra nodal diseases were observed in 7 cases and only 1 patient had oral involvement. Two patients were in earlystage and 7 in advanced stage by the Ann Arbor stage system. Ki-67 index was 60%-90% in the 9 cases, and 80% or higher in 7 cases. Epstein-Barr virus-encoded RNA expression (EBER) was detected in 4 cases, and 2 of them were positive. Chemotherapy was documented in 9 patients, from which 8 received the cyclophosphamide, doxorubicin, vincristine, prednisone (CHOP)-like regimens as the first-line chemotherapy and responses were observed in 5 (1 complete, 4 partial responses). Three elderly patients were treated with CHOP combined with thalidomide, and 2 of them achieved partial responses. One patient, failed three chemotherapy regimens, accepted thalidomide combined with etopside and achieved stable disease for 10 months. One patient with early stage had disease-free survival of 61.9 months after treatment. The other eight patients experienced recurrence or progression after the first-line chemotherapy, and 6 of them died of disease progression within 2 years after the diagnosis. Conclusion: The HIV-negative PBL patients in this study did not have an apparent association with immunosuppression. Primary extra nodal diseases were common, but only 1 patient had oral involvement. Most patients had advanced stage and poor prognosis. Effectiveness of thalidomide in the treatment of PBL deserves further investigation.
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Affiliation(s)
- L Gui
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
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Li Y, G Zhang C, Wang XH, Liu DH. Progression of atherosclerosis in ApoE-knockout mice fed on a high-fat diet. Eur Rev Med Pharmacol Sci 2016; 20:3863-3867. [PMID: 27735029] [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: 06/06/2023]
Abstract
OBJECTIVE To construct the atherosclerosis model of ApoE-knockout (ApoE-/-) mouse after deposition of high-fat diet at brachiocephalic artery and coronary artery. MATERIALS AND METHODS 40 healthy 8-week SPF-level male ApoE-/- mice of body weigh 16 to 23 g were averagely divided into a high-fat diet group and an ordinary diet group. Mice were sacrificed in a time course study by 3 months, 6 months, 9 months and 12 months. The brachiocephalic artery and coronary artery were extracted for pathological examination, and enzyme-linked immunosorbent assay (ELISA) was used for the examination of serum high-sensitivity C-reactive protein (hs-CRP) content and the relative expression level of liver peroxisome proliferator activated receptor (PPAR). RESULTS Plaque ratio in lumen area, lipid ratio in plaque area and plaque spontaneous rupture rate of brachiocephalic artery and coronary artery in high-fat diet group are all significantly higher than those in ordinary diet group during the same period (p<0.05). In the high-fat diet group, those indexes mentioned above in brachiocephalic artery are all significantly higher than those in coronary artery during the same period (p<0.05). Hs-CRP content in high-fat diet group is significantly higher than that in ordinary diet group during the same period, while PPAR relative expression level is significantly lower than that in ordinary diet group during the same period (p<0.05). CONCLUSIONS It was found that ApoE-/- mice after high-fat diet depict the phenotype of the atherosclerotic mouse model, and the brachiocephalic artery is better than coronary artery in terms of material selection, with inflammatory responses also playing an important role.
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Affiliation(s)
- Y Li
- Department of Cardiology, Tangshan Worker Hospital, Tangshan, Hebei, China.
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Shi R, Wang PY, Li XY, Chen JX, Li Y, Zhang XZ, Zhang CG, Jiang T, Li WB, Ding W, Cheng SJ. Exosomal levels of miRNA-21 from cerebrospinal fluids associated with poor prognosis and tumor recurrence of glioma patients. Oncotarget 2016; 6:26971-81. [PMID: 26284486 PMCID: PMC4694967 DOI: 10.18632/oncotarget.4699] [Citation(s) in RCA: 193] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 07/27/2015] [Indexed: 01/10/2023] Open
Abstract
Glioma is a most common type of primary brain tumors. Extracellular vesicles, in the form of exosomes, are known to mediate cell–cell communication by transporting cell-derived proteins and nucleic acids, including various microRNAs (miRNAs). Here we examined the cerebrospinal fluid (CSF) from patients with recurrent glioma for the levels of cancer-related miRNAs, and evaluated the values for prognosis by comparing the measures of CSF-, serum-, and exosome-contained miR-21 levels. Samples from seventy glioma patients following surgery were compared with those from brain trauma patients as a non-tumor control group. Exosomal miR-21 levels in the CSF of glioma patients were found significantly higher than in the controls; whereas no difference was detected in serum-derived exosomal miR-21 expression. The CSF-derived exosomal miR-21 levels correlated with tumor spinal/ventricle metastasis and the recurrence with anatomical site preference. From additional 198 glioma tissue samples, we verified that miR-21 levels associated with tumor grade of diagnosis and negatively correlated with the median values of patient overall survival time. We further used a lentiviral inhibitor to suppress miR-21 expression in U251 cells. The results showed that the levels of miR-21 target genes of PTEN, RECK and PDCD4 were up-regulated at protein levels. Therefore, we concluded that the exosomal miR-21 levels could be demonstrated as a promising indicator for glioma diagnosis and prognosis, particularly with values to predict tumor recurrence or metastasis.
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Affiliation(s)
- Rui Shi
- Department of Oncology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Pei-Yin Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang Medical University, Henan, China
| | - Xin-Yi Li
- University of South Florida, Tampa, FL, USA
| | - Jian-Xin Chen
- Department of Oncology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Yan Li
- Department of Oncology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Xin-Zhong Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang Medical University, Henan, China
| | - Chen-Guang Zhang
- Beijing Key Laboratory for Tumor Invasion and Metastasis, Cancer Institute of Capital Medical University, Beijing, China.,Department of Biochemistry, Molecular Biology Capital Medical University, Beijing, China
| | - Tao Jiang
- Department of Neurosurgery, Tiantan Hospital, Capital Medical University, Beijing, China
| | - Wen-Bin Li
- Department of Oncology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Wei Ding
- Beijing Key Laboratory for Tumor Invasion and Metastasis, Cancer Institute of Capital Medical University, Beijing, China.,Department of Biochemistry, Molecular Biology Capital Medical University, Beijing, China
| | - Shu-Jun Cheng
- Department of Oncology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
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Qin Y, Kang SY, He XH, Zhou SY, Liu P, Yang JL, Zhang CG, Yang S, Gui L, Shi YK. [Clinical features and prognosis of CD20-positive classical Hodgkin lymphoma]. Zhonghua Yi Xue Za Zhi 2016; 96:2224-8. [PMID: 27480653 DOI: 10.3760/cma.j.issn.0376-2491.2016.28.005] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore the clinical characteristics and prognosis of CD20-positive classical Hodgkin lymphoma (CHL). METHODS Data from CHL patients with CD20 immunohistochemical staining result who were treated in Cancer Hospital of Chinese Academy of Medical Sciences between September 2007 and March 2014 were reviewed. The relationship of CD20 expression in Reed-Sternberg(R-S)cells with CHL subtypes, clinical characteristics, and prognosis were analyzed. Fisher test was used to analyze the differences between groups and Kaplan-Meier for survival analysis. RESULTS A total of 263 patients were included in this study. Among the 263 patients, 74 (28.1%) were CD20-postitive. CD20-positive cases showed significantly higher proportions of Epstein-Barr virus (EBV) infection-related, mixed cellularity, and lymphocyte-rich CHL subtypes compared with CD20-negeative patients [52.8% (28/53) vs 19.0% (22/116), 37.9% (25/66) vs 31.6% (54/171), 22.7% (15/66) vs 3.5% (6/171), all P<0.05]. Univariate analysis identified EBV infection, age (≥ 40 years, especially ≥ 60 years), and Ⅲ-Ⅳ stage were correlated with reduced 3-year progression-free survival (PFS) and overall survival (OS) (PFS: 70.3 vs 87.7%, 79.2% vs 89.8%, 56.8% vs 91.5%, 70.4% vs 93.2%; OS: 81.0% vs 100%, 92.1% vs 99.4%, 75.4% vs 99.2%, 90.3% vs 100%; all P<0.05); and CD20-positive and not receiving local radiotherapy were associated with reduced PFS (79.7% vs 90.6%, 68.8% vs 90.6%, both P<0.05), not with OS (92.4% vs 98.3%, 94.0% vs 99.4%, both P>0.05). Patients positive in both CD20 expression and EBV-encoded small RNAs (EBER) showed low PFS. CONCLUSIONS CD20 expression in R-S cells in CHL may be closed related with EBV infection. EBV infection is associated with unfavorable prognosis. The effect of CD20-postitive on prognosis may be mediated by the prognostic effect of EBV infection.
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Affiliation(s)
- Y Qin
- Department of Medical Oncology, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Yao T, Zhang CG, Gong MT, Zhang M, Wang L, Ding W. Decorin-mediated inhibition of the migration of U87MG glioma cells involves activation of autophagy and suppression of TGF-β signaling. FEBS Open Bio 2016; 6:707-19. [PMID: 27398310 PMCID: PMC4932450 DOI: 10.1002/2211-5463.12076] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [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: 03/10/2016] [Revised: 04/18/2016] [Accepted: 04/19/2016] [Indexed: 01/17/2023] Open
Abstract
Decorin (DCN) is a major member of the small leucine-rich proteoglycan (SLRP) family that is critically involved in tumorigenesis and the development of metastasis of cancers, including glioma. Overexpression of DCN was indicated to suppress glioma cell growth. However, the role of DCN in the migration of glioma cells remain elusive. In this study, we found that treatment with exogenous DCN inhibited the adhesion and migration of U87MG glioma cells with down-regulation of TGF-β signaling. DCN also activated autophagy, as indicated by monodansylcadaverine (MDC) staining, increase in LC3 I/LC3 II conversion, and p62/SQSTM1 degradation in U87MG cells. The increased activity of autophagy was found to be connected to the inhibition on glioma cell migration. Knockdown of DCN expression or the disruption of autophagy with 3-methyladenine (3-MA) was able to reduce the suppression on cell adhesion and migration induced by DCN. When U87MG cells were treated with temozolomide (TMZ), induction of autophagy and up-regulation of DCN were observed, accompanied by suppressed cell adhesion and migration. Transfection of siRNA targeting DCN attenuated the suppressive effect of TMZ on glioma cell migration and adhesion. Our results indicated that the migration of glioma cells was under the control of the active status of autophagy, with DCN serving as a key player, as well as an indicator of the outcome. Therefore, it is suggested that autophagy-modulating reagents could be considered for the treatment of invasive glioma.
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Affiliation(s)
- Ting Yao
- Department of Medical Genetics and Developmental Biology Capital Medical University Beijing China
| | - Chen-Guang Zhang
- Department of Biochemistry and Molecular Biology Capital Medical University Beijing China; Beijing Key Laboratory for Researches in Cancer Invasion and Metastasis Cancer Institute of Capital Medical University Beijing China
| | - Ming-Tao Gong
- Department of Biochemistry and Molecular Biology Capital Medical University Beijing China
| | - Min Zhang
- Department of Medical Genetics and Developmental Biology Capital Medical University Beijing China
| | - Lei Wang
- Department of Neurosurgery Beijing Tiantan Hospital China
| | - Wei Ding
- Department of Biochemistry and Molecular Biology Capital Medical University Beijing China; Beijing Key Laboratory for Researches in Cancer Invasion and Metastasis Cancer Institute of Capital Medical University Beijing China; Beijing Institute of Brain Disorders China
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Li Y, Mao WW, Zhang CG, Wan L, Jing CH, Hua XM, Li ST, Cheng J. Neuroprotective effects of intravenous transplantation of bone marrow mononuclear cells from 5-fluorouracil pre-treated rats on ischemic stroke. Behav Brain Res 2015. [PMID: 26219989 DOI: 10.1016/j.bbr.2015.07.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Our previous findings showed bone marrow mononuclear cells (BMMNCs) from 5- fluorouracil (5-FU) pre-treated rats (named BMRMNCs) had a better therapeutic efficacy in ischemia/reperfusion rats as compared to BMMNCs from untreated rats. This study was undertaken to explore the potential mechanisms underlying the neuroprotective effects of BMRMNCs in middle cerebral artery occlusion (MCAO) rat model. Rats were intravenously pre-treated with 5-FU and BMRMNCs were collected at different time points. The contents of growth factors in the supernatant and CXCR4 expression were detected by ELISA and flow cytometry, respectively. MCAO was introduced to rats, and BMMNCs and BMRMNCs collected at 7 days after 5-FU pre-treatment were independently transplanted via the tail vein 24h later. The neurological function was evaluated before cell transplantation and at 24h, 7d and 14d after cell transplantation. Rats were sacrificed at 14d after cell transplantation, the brains were collected for TTC staining, infarct volume detection, NISSL staining, counting of viable cells in the CA1 region, and observation of transplanted cells. BMRMNCs had elevated expressions of growth factors as well as CXCR4 expression. Our results confirmed the better therapeutic effects of BMRMNCs in MCAO rats, demonstrated by reduction in infarct volume, improvement of neurological function and more viable cells in the hippocampus. In addition, more transplanted cells were found after BMRMNCs transplantation at 7 days and 14 days although there was no marked difference at 14 days. These findings indicate that BMRMNCs transplantation may protect ischemic stroke, at least partially, via increasing the secretion of growth factors and migration to the injured site.
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Affiliation(s)
- Y Li
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, No 1665 Kongjiang Road, Yangpu District, Shanghai 200092, China
| | - W W Mao
- Laboratory of Microbiology and Biochemical Pharmaceutics, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - C G Zhang
- Department of Neurosurgery, Hospital of Integrated Traditional and Western Medicine in Shanxi, No 13, Fudong Road, Xinghualing District, Taiyuan, 030001 Shanxi, China
| | - L Wan
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, No 1665 Kongjiang Road, Yangpu District, Shanghai 200092, China
| | - C H Jing
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, No 1665 Kongjiang Road, Yangpu District, Shanghai 200092, China
| | - X M Hua
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, No 1665 Kongjiang Road, Yangpu District, Shanghai 200092, China
| | - S T Li
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, No 1665 Kongjiang Road, Yangpu District, Shanghai 200092, China.
| | - J Cheng
- Department of Ultrasound, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Yangpu District,Shanghai 200092, China.
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27
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Li H, Zhang FL, Shi WJ, Bai XJ, Jia SQ, Zhang CG, Ding W. Immobilization of FLAG-Tagged Recombinant Adeno-Associated Virus 2 onto Tissue Engineering Scaffolds for the Improvement of Transgene Delivery in Cell Transplants. PLoS One 2015; 10:e0129013. [PMID: 26035716 PMCID: PMC4452710 DOI: 10.1371/journal.pone.0129013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Accepted: 05/04/2015] [Indexed: 11/24/2022] Open
Abstract
The technology of virus-based genetic modification in tissue engineering has provided the opportunity to produce more flexible and versatile biomaterials for transplantation. Localizing the transgene expression with increased efficiency is critical for tissue engineering as well as a challenge for virus-based gene delivery. In this study, we tagged the VP2 protein of type 2 adeno-associated virus (AAV) with a 3×FLAG plasmid at the N-terminus and packaged a FLAG-tagged recombinant AAV2 chimeric mutant. The mutant AAVs were immobilized onto the tissue engineering scaffolds with crosslinked anti-FLAG antibodies by N-succinimidyl-3-(2-pyridyldithiol) propionate (SPDP). Cultured cells were seeded to scaffolds to form 3D transplants, and then tested for viral transduction both in vitro and in vivo. The results showed that our FLAG-tagged AAV2 exerted similar transduction efficiency compared with the wild type AAV2 when infected cultured cells. Following immobilization onto the scaffolds of PLGA or gelatin sponge with anti-FLAG antibodies, the viral mediated transgene expression was significantly improved and more localized. Our data demonstrated that the mutation of AAV capsid targeted for antibody-based immobilization could be a practical approach for more efficient and precise transgene delivery. It was also suggested that the immobilization of AAV might have attractive potentials in applications of tissue engineering involving the targeted gene manipulation in 3D tissue cultures.
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Affiliation(s)
- Hua Li
- Department of Oral and Maxillofacial-Head and Neck Oncology, Beijing Stomatological Hospital, Capital Medical University, Beijing, China
| | - Feng-Lan Zhang
- National Institutes for Food and Drug Controls, Beijing, China
| | - Wen-Jie Shi
- Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
- Department of Medical Genetics, Capital Medical University, Beijing, China
| | - Xue-Jia Bai
- Department of Medical Genetics, Capital Medical University, Beijing, China
| | - Shu-Qin Jia
- Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
| | - Chen-Guang Zhang
- Department of Medical Genetics, Capital Medical University, Beijing, China
- * E-mail: (CGZ); (WD)
| | - Wei Ding
- Department of Medical Genetics, Capital Medical University, Beijing, China
- Beijing Institute of Brain Disorders, Beijing, China
- * E-mail: (CGZ); (WD)
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Lu GJ, Dong YQ, Zhang QM, Di WY, Jiao LY, Gao QZ, Zhang CG. miRNA-221 promotes proliferation, migration and invasion by targeting TIMP2 in renal cell carcinoma. Int J Clin Exp Pathol 2015; 8:5224-5229. [PMID: 26191221 PMCID: PMC4503093] [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] [Received: 02/13/2015] [Accepted: 04/12/2015] [Indexed: 06/04/2023]
Abstract
INTRODUCTION MicroRNAs (miRNAs) play important roles in tumorigenesis. In this study, we investigated the role of miR-221 in the development and progression of clear cell renal cell carcinoma (ccRCC). METHODS Quantitative real-time PCR (qRT-PCR) was used to measure the expression level of miR-221 in ccRCC tissues and cell lines. Then, we investigated the role of miR-221 to determine its potential roles on renal cancer cell proliferation, migration and invasion in vitro. A luciferase reporter assay was conducted to confirm the target gene of miR-221 and the results were validated in renal cancer cells. RESULTS In the present study, we found that miR-221 was significantly increased in ccRCC tissues and cell lines. Knocked-down expression of miR-221 remarkably inhibited cell proliferation, migration and invasion of renal cancer cells. Moreover, at the molecular level, our results suggested that TIMP2 as a direct target of miR-221 through which miR-221 promoted tumor cell proliferation, migration and invasion. CONCLUSIONS These findings suggested that miR-221 play an oncogenic role in the renal cancer cell proliferation, migration and invasion by directly inhibiting the tumor suppressor TIMP2, indicating miR-221 act as a potential new therapeutic target for the treatment of ccRCC.
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Affiliation(s)
- Guang-Jian Lu
- Clinical Laboratory, The First Affiliated Hospital of Xinxiang Medical UniversityWeihui 453100, China
| | - Yu-Qian Dong
- Clinical Laboratory, The First Affiliated Hospital of Xinxiang Medical UniversityWeihui 453100, China
| | - Qun-Mei Zhang
- Blood Transfusion Room, The First Affiliated Hospital of Xinxiang Medical UniversityWeihui 453100, China
| | - Wen-Yu Di
- Department of Pathology, The First Affiliated Hospital of Xinxiang Medical UniversityWeihui 453100, China
| | - Lu-Yang Jiao
- Clinical Laboratory, The First Affiliated Hospital of Xinxiang Medical UniversityWeihui 453100, China
| | - Qing-Zu Gao
- Department of Pathology, The First Affiliated Hospital of Xinxiang Medical UniversityWeihui 453100, China
| | - Chen-Guang Zhang
- Medical Inspection Institute, Xinxiang Medical UniversityXinxiang 453000, China
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Xing SQ, Zhang CG, Yuan JF, Yang HM, Zhao SD, Zhang H. Adiponectin induces apoptosis in hepatocellular carcinoma through differential modulation of thioredoxin proteins. Biochem Pharmacol 2014; 93:221-31. [PMID: 25514170 DOI: 10.1016/j.bcp.2014.12.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 12/03/2014] [Accepted: 12/05/2014] [Indexed: 12/16/2022]
Abstract
Adiponectin blocks hepatocellular carcinoma (HCC) progression by inducing cell apoptosis through the modulation of C-Jun N-terminal kinase and mammalian target of rapamycin. However, the precise upstream signaling pathways or molecules remain elusive. In the present study, we analyzed the role of antioxidant protein thioredoxin (Trx) in adiponectin-induced apoptosis in HCC. Adiponectin treatment decreased the viabilities of both HepG2 and Huh7 HCC cells accompanied by increased accumulation of intracellular reactive oxygen species, as evidenced by 2',7'-dichlorodihydrofluorescein diacetate staining. Pretreatment of these cells with the deoxidant N-acetylcysteine blocked the inhibitory effect of adiponectin. Levels of Trx2 protein in both HCC cells were significantly decreased, and the level of Trx1 was significantly inhibited in Huh7 cells while unchanged in HepG2 cells. However, the redox state of Trx1 was altered from reduced to the oxidized form following adiponectin treatment in HepG2 cells. Overexpression of both Trx proteins rescued adiponectin-induced cell apoptosis, whereas mutated Trx proteins were less effective. Further analysis suggested that both ASK1 and JNK signaling are involved in this process. Trx1 and Trx2 proteins also manifested protective effects on HCC cells in response to adiponectin treatment in a xenograft tumor model. Furthermore, high levels of Trx proteins and low adiponectin expression levels were found in primary human HCC samples compared with paracancerous tissues. These results suggest that Trx proteins play important roles in mediating adiponectin-induced HCC cell apoptosis, thus providing new insights into the pathogenesis of HCC and identifying adiponectin and Trx proteins as potential combinational therapeutic targets for the treatment of HCC.
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Affiliation(s)
- Su-Qian Xing
- Department of Neurobiology, Key Laboratory for Neurodegenerative Disease of the Ministry of Education, Capital Medical University, Beijing 100069, China
| | - Chen-Guang Zhang
- Department of Medical Genetics, Capital Medical University, Beijing 100069, China
| | - Ji-Fang Yuan
- Department of Neurobiology, Key Laboratory for Neurodegenerative Disease of the Ministry of Education, Capital Medical University, Beijing 100069, China; Animal Experimental Center of PLA General Hospital, Beijing 100853, China
| | - Hui-Min Yang
- Department of Neurobiology, Key Laboratory for Neurodegenerative Disease of the Ministry of Education, Capital Medical University, Beijing 100069, China
| | - Shu-Dong Zhao
- School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Hong Zhang
- Department of Neurobiology, Key Laboratory for Neurodegenerative Disease of the Ministry of Education, Capital Medical University, Beijing 100069, China.
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Yan SF, You HJ, Xing TY, Zhang CG, Ding W. HDAC inhibitor sodium butyrate augments the MEF2C enhancement of Nampt expression under hypoxia. Curr Pharm Des 2014; 20:1604-13. [PMID: 23888946 DOI: 10.2174/13816128113199990544] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 07/18/2013] [Indexed: 11/22/2022]
Abstract
Nicotinamide phosphoribosyl transferase (Nampt) is the rate-limiting enzyme for the salvage biosynthesis of nicotinamide adenine dinucleotide (NAD). Although elevated level of Nampt expression has been observed in various cancers, the involvement of Nampt promoter regulation was not well understood. We have identified a cluster of MEF2 recognition sites upstream of the functional hypoxia response elements (HREs) within the human Nampt promoter, and demonstrated that the two MEF2 sites at -1272 and -1200 were functional to upregulate the promoter activity by luciferase reporter assays. The Nampt promoter was able to be activated cooperatively following hypoxic stimulation by CoCl₂ treatment with associated MEF2C overexpression. During the investigation on MEF2C regulation of endogenous Nampt expression in HeLa cells, the most significant enhancement of Nampt expression observed was by overexpression of MEF2C in combination with sodium butyrate exposure. By chromatin immunoprecipitation with a MEF2C anti-body, we found that MEF2C indeed interacted with endogenous Nampt promoter. The requirement of HDAC inhibition for the MEF2C enhancement of Nampt transcription was verified by RNAi of HDAC. Our results were in support of reports indicating that MEF2 family transcription factors interacted with HDACs and regulated downstream gene expression at the epigenetic levels. Our study provided important evidence to demonstrate the sophisticated mechanism of endogenous Nampt promoter regulation, and therefore, will help to better understand the Nampt overexpression in cancer progression, especially in the context of MEF2C upregulation which frequently occurred in cancer development and drug resistance.
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Affiliation(s)
| | | | | | | | - Wei Ding
- Department of Medical Genetics, School of Basic Medical Sciences, Capital Medical University; 10 You'an Men, Fengtai district, Beijing 100069, China.
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Zhang M, Zhang CG, Ding W. [Exosome in cancer diagnosis and treatment]. Sheng Li Ke Xue Jin Zhan 2014; 45:372-378. [PMID: 25764798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Exosomes secreted by various types of living cells are small vesicular bodies that contain many types of proteins and RNAs. Such membrane-coated nano-scale structures are extensively involved in the processes of intercellular material exchange and signal communication, thus to conduct important functions under physiological and pathological conditions. Exosomes exist in high abundance in a wide range of body fluids, including peripheral blood, urine, ascites, and amniotic fluid, etc. The exosome from different tissues poses substantial difference in molecular components and biological functions which are dynamically influenced by extracellular matrix and microenvironment. Tumor-derived or tumor-associated exosomes can be an important regulatory mechanism during cancer development and progression. The detection and analyses of tumor-derived exosomes can provide potential reference for cancer early diagnosis, treatment assessment and prognosis. Besides, exosomes and their modified variants can be directly used as vectors for cancer intervention of gene or drug delivery. Exosome-related studies have brought up a booming research field of cancer biology, which following the principle of translational medical research, will shed light on the research of tumor biology and significantly accelerate the developments of novel cancer diagnosis methods, as well as novel strategies for cancer therapy.
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Abstract
HMGB1 is a widely existing DNA-binding nuclear protein, participating in gene transcription, damage repair, recombination and stabilizing nucleosome construction. Under injury, infection and chemotherapy, HMGB1 can be released by nature immunocyte and necrosis cells as a DAMP, exerting pleiotropic biological effects by binding to RAGE, TLR and CXCL12, which lead to activation of CDC42, mitogen-activated protein kinases (MAPKs), c-IAP and NF-κB, thereby promoting angiogenesis, unlimited replicative potential, tissue invasion and metastasis. And it also involves in immune response by regulating immunocyte function as a immunocyte warning signal. Scholars have detected that HMGB1 is over expressed and released following chemotherapy and radiation therapy in cells of hematological malignancies, promoting malignant cell replication, decreasing therapeutic effect. Recently, endogenous HMGB1 has been implied to be an intrinsic modulator of autophagy and referenced to resistant to apoptosis in malignant hematosis cells. In contrast, through suppression of HMGB1 expression, tumor cell apoptosis and chemotherapeutic drug sensitivity were increased, which will be a new strategy for the treatment of hematological malignancies. In this article, the basic characteristics of HMGB1, including structure and biological features, and HMGB1 and tumors such as lymphoma, myeloproliferative neoplasms and acute myeloid leukemia are reviewed.
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Affiliation(s)
- Ya-Hui Hu
- Department of Laboratorial Medicine, Xinxiang Medical College, Xinxiang 453003, Henan Province, China
| | - Lu Yang
- Department of Laboratorial Medicine, Xinxiang Medical College, Xinxiang 453003, Henan Province, China
| | - Chen-Guang Zhang
- Department of Laboratorial Medicine, Xinxiang Medical College, Xinxiang 453003, Henan Province, China. E-mail:
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Zhang CG, Li Y, Wang ZX. Synthesis, Crystal Structure, and Spectral Properties of Two Manganese(II) and Zinc(II) Complexes with 3,4-Dimethyl-5-(2-pyridyl)-1,2,4-triazole. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201300333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Zhang CG, Li Y, Wen TW, Sun BW. A new salt of dyclonine (DYC): synthesis, crystal structure, luminescent properties, thermal and biological activities. Res Chem Intermed 2013. [DOI: 10.1007/s11164-013-1507-3] [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: 12/01/2022]
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Lai XS, Zhang CG, Wang J, Wang C, Lan XY, Lei CZ, Chen H. [Developmental expression patterns and association study with growth traits of bovine]. Mol Biol (Mosk) 2013; 47:774-781. [PMID: 25509349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
As a member of the basic helix-loop-helix (bHLH) family of transcription factors, Bhlhe40 played an important role in the regulation of adipogenesis, myogenesis and the development of metabolic syndrome. In this study, we investigated the tissue expression patterns and differences of bovine Bhlhe40 gene during three developmental stages. The result showed that Bhlhe40 was ubiquitously expressed in most tissues of cattle. In addition, the expression of bovine Bhlhe40 gene showed a decreasing trend in skeletal muscle and fat during the de- velopmental stages. Then, two novel mutations (EX5 + 114 T>C, L166P and EX5 + 733 A>G, S372S) of bovine Bhlhe40 gene were identified by BamHI and ApaI ACRS PCR-RFLP in 1226 individuals from five indigenous cattle breeds in China. Frequencies of allele C at the BamHI locus varied from 0.210 to 0.340 among breeds, while frequencies of allele G at the ApaI locus varied from 0.030 to 0.114. Association analysis revealed no significant association of ApaI locus with growth traits in Nanyang breed. However, BamHI locus was significantly associated with the average daily lain at 18 months in Nanvans cattle (P < 0.05). This study aimed to lay the groundwork to further study of Bhlhe40 function at myogenesis and adipogenesis in bovine and should significantly contribute to cattle breeding and genetics through MAS program.
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Li Y, Zhang CG, Cai LY, Wang ZX. Synthesis, crystal structure, Hirshfeld surfaces, and spectral properties of Cu(II) and Co(II) complexes with 3-phenoxymethyl-4-phenyl-5-(2-pyridyl)-1,2,4-triazole. J COORD CHEM 2013. [DOI: 10.1080/00958972.2013.826350] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Yuan Li
- a College of Chemistry and Chemical Engineering , Southeast University , Nanjing , P.R. China
| | - Chen-Guang Zhang
- a College of Chemistry and Chemical Engineering , Southeast University , Nanjing , P.R. China
| | - Liang-Ying Cai
- a College of Chemistry and Chemical Engineering , Southeast University , Nanjing , P.R. China
| | - Zuo-Xiang Wang
- a College of Chemistry and Chemical Engineering , Southeast University , Nanjing , P.R. China
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Zhang CG, Wang H, Niu ZG, Zhang JJ, Yin MM, Gao ZT, Hu LH. Tax is Involved in Up-regulation of HMGB1 Expression Levels by Interaction with C/EBP. Asian Pac J Cancer Prev 2013; 14:359-65. [DOI: 10.7314/apjcp.2013.14.1.359] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Abstract
In the title compound, C10H7BrN2, the non-H atoms, except the N atom of the acetonitrile group and the C atom bonded to it, lie in the least-squares plane defined by the atoms of the indole ring system (r.m.s deviation = 0.019 Å), with the N and C atom of the cyano group displaced by 2.278 (1) and 1.289 (1) Å, respectively, out of that plane. In the crystal, N—H⋯N hydrogen bonds link the molecules into a C(7) chain along [100].
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Abstract
In the title compound, C(9)H(6)ClNO, the Cl atom deviates by 0.142 (1) Å from the quinoline ring mean plane (r.m.s. deviation = 0.013 Å). In the crystal, N-H⋯O hydrogen bonds link the mol-ecules into [010] C(4) chains. Aromatic π-π stacking inter-actions [shortest centroid⋯centroid distance = 3.685 (3) Å] are also observed.
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Affiliation(s)
- Chen-Guang Zhang
- Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China
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Ge YH, Zhang CG, Luo YH. 6-[( E)-2-Phenylvinyl]-1 H-indole. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o73. [PMID: 22259574 PMCID: PMC3254428 DOI: 10.1107/s1600536811051750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Accepted: 12/01/2011] [Indexed: 11/23/2022]
Abstract
The title compound, C16H13N, is essentially planar [maximum deviation from the least-squares plane = 0.081 (3) Å], with a dihedral angle of 1.65 (13)° between the planes of the indole and benzene rings. In the crystal, there are no significant intermolecular π–π interactions [minimum ring centroid–centroid separation = 4.217 (5) Å].
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Luo YH, Zhang CG, Xu B, Sun BW. A cocrystal strategy for the precipitation of liquid 2,3-dimethyl pyrazine with hydroxyl substituted benzoic acid and a Hirshfeld surfaces analysis of them. CrystEngComm 2012. [DOI: 10.1039/c2ce25767j] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhu LL, Zhang CG. [Advance of clinical study on immune thrombocytopenia caused by irregular antibodies]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2011; 19:839-842. [PMID: 21729584] [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: 05/31/2023]
Abstract
The platelet antibodies mainly include platelet-specific and related antibodies, which belong to irregular antibodies. They are produced by autoimmune, drug-induced or isoimmunization (such as pregnancy, blood transfusion and so on), the irregular IgG and/or IgM antibodies produce and lead to platelet transfusion refractoriness (PTR), post-transfusion purpura (PTP) and isoimmune neonatal thrombocytopenic purpura (INTP), idiopathic thrombocytopenic purpura and so on. It is very necessary to screen and identify the irregular antibodies before blood transfusion or parturition. Except some serological detections should be done first, flow cytometry and molecular biological techniques such as PCR and PCR-SSP are applied to detect the difficult-matching patients' genotypes and fetal genotypes in order to further predict fetal INTP and to provide the right blood for difficult-matching patients, therefore, some measures must be taken early for prevention and treatment of immune thrombocytopenic purpura. In this review, the production, typing and laboratory tests of irregular antibodies, as well as the pathogenesis and clinical symptoms of diseases caused by irregular antibodies, and the current progress are summarized.
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Affiliation(s)
- Lin-Lin Zhu
- Department of Medical Laboratorial Examination, Xinxiang Medical College, Xinxiang 453003, Henan Province, China
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Zhang CG, Wang H. [Immune hemolytic diseases caused by irregular antibodies and its research advance in clinic]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2010; 18:825-828. [PMID: 20561459] [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: 05/29/2023]
Abstract
The irregular antibodies are other than antibodies from ABO blood group system because of pregnancies and blood transfusions, clinical autoimmune, drug-induced etc. The irregular IgG and/or IgM antibodies emerge and lead to the difficult identification of clinical blood type, difficult matching of blood, hemolytic disease of newborn, hemolytic transfusion reaction, and so on. It is very necessary to screen and identify the irregular antibodies before blood transfusion or antepartum. For some difficult identifying samples, some detections on serological level should be done firstly, combining with flow cytometry analysis, the difficult-matching patients' genotypes and fetal genotypes were detected by molecular biology techniques such as PCR and PCR-SSP in order to further predict fetal hemolytic disease of newborn and to provide the right blood to difficult-matching patients, and free fetal DNA extracted from maternal plasma. So that some measures must early be taken for clinical prevention and treatment to reduce immune hemolytic reactions. In this paper, the emergence of irregular antibodies, species, laboratory testing, pathogenesis, clinical symptoms and the current research are reviewed.
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Affiliation(s)
- Chen-Guang Zhang
- Department of Medical Laboratorial Examination, Henan Xinxiang Medical College, Xinxiang 453003, Henan Province, China
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Zhang CG, Jia ZQ, Li BH, Zhang H, Liu YN, Chen P, Ma KT, Zhou CY. β-Catenin/TCF/LEF1 can directly regulate phenylephrine-induced cell hypertrophy and Anf transcription in cardiomyocytes. Biochem Biophys Res Commun 2009; 390:258-62. [DOI: 10.1016/j.bbrc.2009.09.101] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2009] [Accepted: 09/24/2009] [Indexed: 11/29/2022]
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Li B, Yang JL, Shi YK, He XH, Han XH, Zhou SY, Liu P, Yang S, Zhang CG. Etoposide 1.0 g/m2 or 1.5 g/m2 combined with granulocyte colony-stimulating factor for mobilization of peripheral blood stem cells in patients with malignancy: efficacy and toxicity. Cytotherapy 2009; 11:362-71. [PMID: 19037766 DOI: 10.1080/14653240802582067] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND The purpose of this study was to observe the efficacy and toxicity of etoposide at two dose levels for peripheral blood stem cell (PBSC) mobilization and disease debulking in patients with malignancy. Simultaneously, factors affecting the yield of CD34+ cells were explored. METHODS Thirty-eight patients received etoposide 1.0 g/m2 (group A) or 1.5 g/m2 (group B) followed by granulocyte colony-stimulating factor (G-CSF) 300 microg/day for PBSC mobilization in a non-randomized manner. Each group had 19 patients. RESULTS The median number of CD34+ cells collected was 17.33 x 10(6)/kg (range 4.85-89.00 x 10(6)/kg) in group A and 26.54 x 10(6)/kg (range 1.85-108.00 x 10(6)/kg) in group B. Altogether, 34/38 (89.5%) patients obtained the target total collection of at least 4 x 10(6) CD34+ cells/kg by a single leukapheresis. Vomiting was the most common grade 3/4 non-hematologic toxicity. For 19 evaluable patients, partial response was achieved in four (21.1%), stable disease in 11 (57.8%) and progressive disease in four (21.1%) patients. All parameters between the two groups did not reach a significant level. With multivariate analysis, the most predictive factor for CD34+ yield of the first leukapheresis was the percentage of CD34+ CD38(-) cells in peripheral blood. CONCLUSION These results indicate that etoposide combined with G-CSF is an effective and tolerable regimen for PBSC mobilization, given at a dose of either 1.0 g/m2 or 1.5 g/m2.
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Affiliation(s)
- B Li
- Department of Medical Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing China
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Liu GL, Wang JQ, Bu DP, Cheng JB, Zhang CG, Wei HY, Zhou LY, Liu KL, Dong XL. Specific immune milk production of cows implanted with antigen-release devices. J Dairy Sci 2009; 92:100-8. [PMID: 19109268 DOI: 10.3168/jds.2008-1114] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A new antigen-release device (ARD) that can be implanted to enhance the titer of specific IgG and concentration of total IgG in milk of lactating cows was evaluated. An immunostimulating complex-based vaccine in the core of the ARD was made from the adjuvant Quil A and type XIII lipase from Pseudomonas spp. with a polylactide acid capsule that was used to control antigen release. Forty lactating Holstein dairy cows were divided into 2 groups (n = 20). All cows in the test group were implanted in the right iliac lymph node with 3 types of ARD at the same time, which were designed to release antigens on different days. The other group was used as a control with no implantation. The 3 ARD were designed to release the antigen on d 0, 14, and 28 after implantation. Specific IgG titers in whey and serum were measured by indirect ELISA, and total IgG concentrations were measured using sandwich ELISA. The results indicated that ARD implantation brought no negative effects on the health status, production performance of cows, and caused neither subclinical nor acute mastitis. The levels of specific IgG in serum (200,000 +/- 45,000 vs. 1,200 +/- 360) and whey (41,000 +/- 6,000 vs. 820 +/- 210) increased in the cows implanted with ARD. Specific IgG in whey was increased after 9 d. The dynamics of specific IgG titer demonstrated a pattern with the release of the antigen from 3 types of ARD. The average ELISA titer of test group in whey was 41,000 +/- 6,000, which suggested high efficiency of immune milk production caused by the ARD implantation. For total IgG in milk, greater concentration in the test compared with the control cows occurred from 11 to 20 d following implantation. The IgG mass was consistent with the dynamics of specific IgG titer and was higher from 15 to 30 d between test and control group (7.89 +/- 1.34 vs. 6.48 +/- 1.17 g). In conclusion, ARD implantation was effective in improving specific antibody concentration in serum and whey. Furthermore, the whey:serum ratio of specific IgG titer, the milk:serum ratio of total IgG concentration and total IgG mass in milk suggested that a transiently upregulated IgG transfer occurred after ARD implantation.
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Affiliation(s)
- G L Liu
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
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Cheng JB, Wang JQ, Bu DP, Liu GL, Iaschi SPA, Zhang CG, Wei HY, Zhou LY, Wang JZ, Tay KG. The effect of implanting an antigen release device on lactoferrin concentration in serum and milk. J Vet Med Sci 2008; 70:819-24. [PMID: 18772557 DOI: 10.1292/jvms.70.819] [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: 11/22/2022] Open
Abstract
The objective of this study was to evaluate the effect of implanting an Antigen Release Devices (ARD) into dairy cows during the lactation cycle to induce an immune response. Subsequently, the concentrations of lactoferrin in serum and milk were measured. Forty healthy adult Chinese Holstein cows were divided into two equal groups: a test group and a control group. Animals in the test group received ARD implants, whereas the control group animals were not treated. An even spread across the two groups was maintained with animal selection based on parity, the lactation days and milk yields. The concentrations of lactoferrin in the serum and milk of all forty animals were measured using an Enzyme-Linked Immunosorbent Assay (ELISA). The results show that the implantation of an ARD did not significantly increase the concentration of lactoferrin in the serum and milk throughout the whole experiment period except on two occasions. The levels of lactoferrin in the milk and serum significantly increased on day 7 and on day 11 after implantation (p<0.05). There was a strong correlation between milk lactoferrin and serum lactoferrin (r=0.564, P<0.01). Three separate ARDs were used releasing its antigen load on day 0, 14 and 28 to induce a primary, secondary and tertiary response respectively. As the significant increases in the lactoferrin levels were only observed after the first ARD release, the effects of lactoferrin appears to be associated with the early phase of the immune response, consistent with its role in the host's innate defense system.
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Affiliation(s)
- J B Cheng
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Haidian, Beijing, People's Republic of China
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Abstract
Lactoferrin (LF) concentrations in the milk with different levels of the somatic cell count score were examined using an ELISA to determine whether milk LF concentration is influenced by parity of the cow, stage of lactation, and the somatic cell count. The study animals were 198 Chinese Holstein cows randomly chosen from more than 1,600 cows in 4 dairy farms in the Beijing area. The cows had shown no sign of mastitis for 2 mo. Daily milk production was recorded, and milk samples were taken from individual cow samples. The LF concentration varied between 31.78 and 485.63 microg/mL in milk from normal animals. Lactoferrin was significantly associated with stage of lactation (r = 0.557) and daily milk production (r = -0.472). Nevertheless, there was no significant relationship with parity. Moreover, milk LF concentration tended to be correlated with the somatic cell count score (r = 0.375). This finding suggests that milk LF may be helpful as an indicator for intramammary infection in dairy cows.
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Affiliation(s)
- J B Cheng
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100094, PR China
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Qiao YH, Liu JL, Zhang CG, Zeng Y. Finding keywords for intergenic and gene regions for human genome. Nucleosides Nucleotides Nucleic Acids 2006; 24:191-8. [PMID: 15892258 DOI: 10.1081/ncn-55714] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The analysis of functionally related sequences for conserved patterns is important for further research of different functional regions. This paper presents an analysis of genes and intergenic sequences from the point of view of linguistics analysis, where gene and intergenic regions are regarded as two different subjects written in the four-letter alphabet [A, C, G, T] and high-frequency simple sequences are taken as keywords. A measurement alpha[l(tau)] was introduced to describe the relative repeat ratio of simple sequences. Cutoff values were found for keywords selection. After eliminating "noise," 87 short sequences were selected as keywords for intergenic regions and 76 for gene regions.
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Affiliation(s)
- Y H Qiao
- Biomechanics and Medical Information Institute, Beijing University of Technology, Beijing, China
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Wang S, Xie LP, Shen HF, Zheng XY, Qin J, Bai Y, Zhang CG, Chen ZD, Cai SL, Zhang ZG, Ren GP, Wang LJ, Yu XR. [Distribution features of Gleason score and its relationship with clinical stages in 346 prostate cancer patients]. Zhonghua Nan Ke Xue 2006; 12:689-92. [PMID: 16970154] [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: 05/11/2023]
Abstract
OBJECTIVE To analyze the distribution features of Gleason score and evaluate the relationship between Gleason score and clinical stages in patients with prostate cancer. METHODS Surveys were made of the inpatients with prostate cancer diagnosed by pathology from January 1992 to June 2005 in our hospital. Gleason score and clinical stages were determined on the basis of pathological examination and clinical data of the prostate cancer patients. The patients were divided into three groups (1992-1999, 2000-2002 and 2003-2005). The Chi-square test was used to evaluate the distribution and differences of Gleason score among the three groups. Spearman rank correlation was applied to the evaluation of the relationship between Gleason score and clinical stages. RESULTS We found a statistically significant shift in the distribution of Gleason score (chi2 = 17.703, P < 0.01), and a slight increase in the mean Gleason score. The proportion of moderately differentiated tumor increased (chi2 = 10.736, P < 0.01). There was little change in the proportion of Gleason score 7, 8, 9 and 10 (chi2 = 4.038, P > 0.05). Gleason score had a significant positive correlation with clinical stages in the 346 cases of prostate cancer (r = 0.452, P < 0.01). Significant difference was observed between Gleason score 2-6 and 7 or 8-10 (chi2 = 8.786, P < 0.01, chi2 = 22.956, P < 0.01), but not between the latter 2 groups (chi2 = 0.787, P > 0.05) in prediction of organ-confined disease. CONCLUSIONS Gleason score 7 shows the similar value to Gleason score 8-10 in predicting the progression of the disease. Gleason score was significantly correlated with clinical stages, which suggests that Gleason score is also an important indicator for the prognosis of prostate cancer.
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Affiliation(s)
- Shuo Wang
- Department of Urology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China
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