1. Research progress and potential medical applications of anaplastic lymphoma kinase in treatment of non-small cell lung cancer
Bo CHEN ; Iian-Di KAN ; Li-Ying CHEN ; Fa-Qing YE ; Yan-Ting SUN
Chinese Pharmacological Bulletin 2024;40(3):415-420
During the treatment of non-small cell lung cancer ( NSCLC) , many patients have developed drug resistance due to the use of targeted EGFR inhibitors. The main reasons for drug resistance are EGFR site mutations and bypass activation. Activation of ALK pathway is one of the major types of bypass activation. A recent authoritative study indicates that ALK is closely related to immunotherapy. This article reviews the treatment of ALK in tumors from three aspects: the structure and physiological function of ALK, the small molecule inhibitor of ALK, the biological function of ALK and its related treatment methods for NSCLC, and prospects future directions for better application of ALK in the treatment of NSCLC.
2.Primary large cell neuroendocrine carcinoma of bladder with urothelial carcinoma: a case report
Zhenlin HE ; Longlong LIU ; Shulian CHEN ; Fa SUN
Chinese Journal of Urology 2024;45(1):59-60
Large cell neuroendocrine carcinoma of bladder is a rare malignant tumor with high degree of malignancy, strong invasiveness and poor prognosis. We reported a case of a 56-year-old man who underwent transurethral resection of bladder tumor because of bladder mass. Postoperative pathology revealed large cell neuroendocrine carcinoma of the bladder with urothelial carcinoma. Radical cystectomy was performed after postoperative chemotherapy, and there was no recurrence after 3 months of follow-up.
3.Construction of recombinant human butyrylcholinesterase directed inte-grated goat fetal fibroblast cell lines based on CRISPR/Cas9 system
Yunpeng WU ; Yefeng QIU ; Yuling TANG ; Tianqi SUN ; Tongtong QIN ; Rui ZHANG ; Yunzhi FA
Military Medical Sciences 2024;48(6):421-428
Objective To construct recombinant human butyrylcholinesterase(rhBChE)knock-in goat fetal fibroblast cell lines(GFFs)by using clustered regularly interspaced short palindromic repeats(CRISPR)/CRISPR-associated protein 9(Cas9)-mediated homology-directed repair mechanism for subsequent production of goat expressing rhBChE.Methods The efficient sgRNA sites targeting goat[3-casein(CSN2)gene were designed and screened,and the targeting efficiency of the sgRNA in goat mammary epithelial cells(GMECs)was confirmed by electro-transfection,flow sorting,and sequencing of PCR products.The red fluorescent reporter gene homology repair vector(P2A-mCherry)targeting the sgRNA was constructed,and then the integration and expression efficiency was detected by flow cytometry.The rhBChE homology repair vector(P2A-rhBChE)targeting the sgRNA of CSN2 gene was constructed in GFFs,the rhBChE positive cell clones were obtained via electro-transfection and flow sorting,and the rhBChE knock-in cell lines was identified by sequencing of PCR products.Results The sgRNA4 was identified as an efficient target of goat CSN2 gene,which could be also used for targeted integration of other genes.Three rhBChE knock-in cell lines were successfully constructed.Conclusion The rhBChE knock-in GFFs targeting goat CSN2 gene lays the foundation for the production of mammary bioreactors expressing rhBChE.
4.Clinical analysis of inflatable video-assisted mediastinoscopic transhiatal esophagectomy combined with laparoscopy.
Zhi Ning HUANG ; Chang Qing LIU ; Ming Fa GUO ; Mei Qing XU ; Xiao Hui SUN ; Gao Xiang WANG ; Ming Ran XIE
Chinese Journal of Surgery 2023;61(1):48-53
Objective: To examine the safety and effectiveness of inflatable video-assisted mediastinoscopic transhiatal esophagectomy (IVMTE). Methods: Totally 269 patients admitted to the Anhui Provincial Hospital of Anhui Medical University who underwent IVMTE (IVMTE group, n=47) or thoracoscopy combined with minimally invasive Mckeown esophageal cancer resection (MIME group, n=222) from September 2017 to December 2021 were analyzed retrospectively. There were 31 males and 16 females in IVMTE group, aged (68.6±7.5) years (range: 54 to 87 years). There were 159 males and 63 females in MIME group, aged (66.8±8.8) years (range: 42 to 93 years). A 1∶1 match was performed on both groups by propensity score matching, with 38 cases in each group. The intraoperative conditions and postoperative complication rates of the two groups were compared by t test, Wilcoxon rank, χ2 test, or Fisher exact probability method. Results: Patients in IVMTE group had less intraoperative bleeding ((96.0±39.2) ml vs. (123.8±49.3) ml, t=-2.627, P=0.011), shorter operation time ((239.1±47.3) minutes vs. (264.2±57.2) minutes, t=-2.086, P=0.040), and less drainage 3 days after surgery (85(89) ml vs. 675(573) ml, Z=-7.575, P<0.01) compared with that of MIME group. There were no statistically significant differences between the two groups in terms of drainage tube-belt time, postoperative hospital stay, and lymph node dissection stations and numbers (all P>0.05). The incidence of Clavien-Dindo grade 1 to 2 pulmonary infection (7.9%(3/38) vs. 31.6%(12/38), χ²=6.728, P=0.009), total complications (21.1%(8/38) vs. 47.4%(18/38), χ²=5.846, P=0.016) and total lung complications (13.2%(5/38) vs. 42.1%(16/38), χ²=7.962, P=0.005) in the IVMTE group were significantly lower. Conclusion: Inflatable video-assisted mediastinoscopic transhiatal esophagectomy combined with laparoscopic esophagectomy is safe and feasible, which can reach the same range of oncology as thoracoscopic surgery.
Male
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Female
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Humans
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Retrospective Studies
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Esophagectomy/methods*
;
Treatment Outcome
;
Laparoscopy
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Thoracoscopy
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Lymph Node Excision/methods*
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Esophageal Neoplasms/surgery*
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Postoperative Complications
5.Optimization of production process of Aeromonas veronii CA07 strain inactivated vaccine
SUN Cheng⁃wen ; GONG Hua ; LAI Ying⁃tiao ; JIANG Xiao⁃yan ; REN Yan ; CHEN Zong⁃hui ; HUANG Zhi⁃bin ; TAO Jia⁃fa
Chinese Journal of Biologicals 2023;36(1):76-80+84
Abstract:Objective To optimize the production process of inactivated vaccine of Aeromonas veronii(AV)CA07 strain.
Methods The fermentation culture process of AV CA07 strain liquid was determined through the optimization of the culture
time(2~16 h),medium(optimized fermentation medium,LB medium and NB medium)and fermentation conditions(in⁃
oculation amount of 1%,5%,10% and 15%;ventilation rate of 2,4,6 and 8 L/min and fermentation time of 6,8,10
and 12 h). The optimal inactivation process was determined through the comparison of the final concentration of formalde⁃
hyde solution(0. 10%,0. 20%,0. 30% and 0. 40%),inactivation temperature(28 and 37 ℃)and inactivation time(24,
48 and 72 h). The large⁃scale production process of inactivated vaccine of AV CA07 strain in 500 L fermentor was estab⁃
lished and the prepared vaccines were tested for safety and immunogenicity. Results The optimal inoculation amount of AV
CA07 strain was 5%,ventilation rate was 4 L/min and culture time was 10 ~ 12 h. The optimal inactivation condition was
adding formaldehyde solution with final concentration of 0. 30% incubating at 37 ℃ for 24 h. The number of viable bacteria
in the fermentation broth of AV CA07 strain prepared in 500 L fermentor was more than 8 × 109 CFU/mL. All crucian carps
immunized with the inactivated vaccine by abdomen survived. After challenge,the relative immune protection rate was more
than 90%. Conclusion AV CA07 strain inactivated vaccine prepared by optimized production process showed good safety
and immunogenicity.
6.N6-Methyladenosine Methyltransferase METTL3 Alleviates Diabetes-Induced Testicular Damage through Modulating TUG1/Clusterin Axis
Yuan TIAN ; Yue-Hai XIAO ; Chao SUN ; Bei LIU ; Fa SUN
Diabetes & Metabolism Journal 2023;47(2):287-300
Background:
The present study investigated the regulatory effects of N6-methyladenosine (m6A) methyltransferase like-3 (METTL3) in diabetes-induced testicular damage.
Methods:
In vivo diabetic mice and high glucose (HG) treated GC-1 spg cells were established. The mRNA and protein expressions were determined by real-time quantitative polymerase chain reaction, Western blot, immunofluorescence and immunohistochemistry staining. Levels of testosterone, blood glucose, cell viability, and apoptosis were detected by enzyme-linked immunosorbent assay, MTT, and flow cytometry, respectively. Molecular interactions were verified by RNA immunoprecipitation and RNA pull-down assay. Histopathological staining was performed to evaluate testicular injury.
Results:
METTL3 and long non-coding RNA taurine up-regulated 1 (lncRNA TUG1) were downregulated in testicular tissues of diabetic mice and HG-treated GC-1 spg cells. METTL3 overexpression could reduce the blood glucose level, oxidative stress and testicular damage but enhance testosterone secretion in diabetic mouse model and HG-stimulated GC-1 spg cells. Mechanically, METTL3-mediated m6A methylation enhanced the stability of TUG1, then stabilizing the clusterin mRNA via recruiting serine and arginine rich splicing factor 1. Moreover, inhibition of TUG1/clusterin signaling markedly reversed the protective impacts of METTL3 overexpression on HG-stimulated GC-1 spg cells.
Conclusion
This study demonstrated that METTL3 ameliorated diabetes-induced testicular damage by upregulating the TUG1/clusterin signaling. These data further elucidate the potential regulatory mechanisms of m6A modification on diabetes-induced testicular injury.
7. Mechanism of high-salt diet up-regulating TMEM16A-induced cerebral arterial remodeling in C57BL/6J mice
Xiao-Min HOU ; Ming-Sheng ZHANG ; Yi-Wei SHI ; Lin SUN ; Xu ZHAO ; Ming-Yang CHANG ; Xiao-Jiang QIN ; Zhi-Fa ZHENG
Chinese Pharmacological Bulletin 2023;39(6):1042-1047
Aim To investigate the mechanism of high salt-induced cerebral artery remodeling in mice by up-regulating TMEM16A. Methods Forty C57BL/6J mice were randomly divided into four groups (10 per group, 8 weeks of intervention), namely, blank control group (normal diet), low-salt group (2% high salt diet), medium-salt group (4% high salt diet) and high-salt group (8% high salt diet). HE staining was used to observe the morphological changes of cerebral arteries; blood vessel permeability test was used to compare the color and absorbance value of brain tissue. Immunofluorescence was employed to detect TMEM16A expression in cerebral arteries of mice in each group; PCR and Western blot were applied to detect the mRNA and protein expression of TMEM16A in cerebral arterial tissues; whole-cell patch clamp was use to record the calcium-activated chloride channel (CaCC) currents of mouse cerebral artery smooth muscle cells in each group. Results HE results showed that 2%, 4%, and 8% high salt diet could concentra-tion-dependently induce cerebral arterial wall thickening and lumen stenosis in C57BL/6J mice. The permeability test found that compared with the control group, the absorbance value of the brain tissue of the mice in the 2%, 4% and 8% high salt groups increased significantly. The results of isolated muscle tension showed that compared with the control group, the systolic response of isolated cerebral arteries to 60 mmol • L
8.The Link between Exposure to Phthalates and Type 2 Diabetes Mellitus: A Study Based on NHANES Data and Bioinformatic Analysis.
Xue Kui LIU ; Shan Wen SI ; Yan YE ; Jia Yi LI ; He He LYU ; Ya Mei MA ; Cai Yan ZOU ; Hao Jie SUN ; Lei XUE ; Wei XU ; Hou Fa GENG ; Jun LIANG
Biomedical and Environmental Sciences 2023;36(9):892-896
9.hiPSCs and organoids: prediction of arrhythmogenic risks for optimized traditional Chinese medicine.
Hao-Kun SUN ; Yuan GAO ; Ming-Jun ZHU ; Jin-Fa TANG ; Ying WU ; Bin LI ; Rui YU ; Yan WANG ; Lu-Ye ZHOU
China Journal of Chinese Materia Medica 2023;48(20):5404-5409
Accurate assessment of the risks associated with traditional Chinese medicine(TCM), such as the potential to induce serious cardiovascular adverse reactions including cardiac arrhythmias, is crucial. This article introduced the pharmacological evaluation strategies for cardiac safety and the progress in cardiac organ research, with a focus on discussing the application prospects of human induced pluripotent stem cells(hiPSCs) and organoids in assessing the risks of TCM-induced cardiac arrhythmias. Compared with traditional animal models, hiPSCs and organoid models provide better reference and predictive capabilities, allowing for more accurate simulation of human cardiac responses. Researchers have successfully generated various cardiac tissue models that mimic the structure and function of the heart to evaluate the effects of TCM on the heart. The hiPSCs model, by reprogramming adult cells into pluripotent stem cells and differentiating them into cardiac cells, enables the generation of personalized cardiac tissue, which better reflects individual differences and drug responses. This provides guidance for the assessment of TCM cardiac toxicity risks. By combining organoid model with cardiac safety pharmacology strategies such as electrocardiogram monitoring and ion channel function assessment, the impact of TCM on the heart can be comprehensively evaluated. In addition, the application of the Comprehensive in Vitro Proarrhythmia Assay(CiPA) approach improves the accuracy of evaluation. Applying the CiPA approach to TCM research reveals potential risks and provides a scientific basis for the clinical application and industrial development of TCM. In conclusion, organoid model and cardiac safety pharmacology evaluation strategies provide important tools for assessing the cardiac toxicity risks of TCM. The combination of hiPSCs model, comprehensive assessment methods, and the CiPA strategy enables an accurate assessment of the risks of TCM-induced cardiac arrhythmias, thus providing a scientific basis for the safe use and international recognition of TCM in clinical practice. This contributes to ensuring the safety and efficacy of TCM and promoting its clinical application and global acceptance.
Animals
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Humans
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Medicine, Chinese Traditional/adverse effects*
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Cardiotoxicity
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Induced Pluripotent Stem Cells
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Arrhythmias, Cardiac/chemically induced*
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Myocytes, Cardiac
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Organoids
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Drugs, Chinese Herbal/adverse effects*
10.A Dataset on the Dynamic Monitoring of Health and Family Planning of China's Internal Migrants: A Multi-Wave Large-Scale, National Cross-Sectional Survey from 2009 to 2018.
Sheng-Fa ZHANG ; Wei LUO ; Zhi-Li WANG ; Jing CHEN ; Fang ZHOU ; Jing-Wen SUN ; Jia-Yang WANG ; Jing-Chen ZHANG ; Wei ZHOU
Chinese Medical Sciences Journal 2023;38(3):235-241
This data article presents data from the China Migrants Dynamic Survey (CMDS), a multi-wave, large-scale national cross-sectional survey of China's internal migrants from 2009 to 2018. The CMDS is an annual questionnaire survey conducted by the former National Health and Family Planning Commission (NHFPC) of the People's Republic of China. The respondents included in this survey are internal migrants over 15 years old. The sample was drawn from the China Migrant Population Information System, using multi-stage stratified sampling method and the probability proportional-to-size (PPS) cluster sampling strategy. Between 2009 and 2018, there were 1,527,650 internal migrants from 23 provinces, 5 autonomous regions and 4 municipalities participated in the surveys. The survey tools were a series of self-designed questionnaires with high inheritance and consistency designed and implemented by the NHFPC. The questionnaires mainly contain basic information of the respondents and their family members, migration status, healthcare or health behaviors, public health service utilization, social insurance, social integration, and family planning. The dataset is currently the most widely used survey data on China's internal migrants, offering information on migration patterns, healthcare and health behaviors, use of public health services, access to social security, social integration, and family planning, which are valuable for health planning, health decision-making, and health equity research.
United States
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Humans
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Adolescent
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Family Planning Services
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Transients and Migrants
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Cross-Sectional Studies
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China/epidemiology*
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Surveys and Questionnaires


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