1.Study on the effect of apoptosis stimulation protein 2 on traumatic proliferative vitreoretinopathy in rabbits
Xiaoli CHEN ; Yuze MAO ; Wenhui CAI ; Haiwei WANG ; Yankun YUE
International Eye Science 2026;26(1):16-20
AIM:To investigate the effect of apoptosis stimulation protein 2(ASPP2)on the development of traumatic proliferative vitreoretinopathy(PVR)in a rabbit model.METHODS:A total of 30 New Zealand white rabbits were selected, and the right eyes of all rabbits were inflicted with a scleral penetrating wound of approximately 6 mm. Then rabbits were randomly and evenly divided into experimental and control group. The experimental group received an intravitreal injection of 0.1 mL of ARPE-19 cell suspension transfected with lentivirus-ASPP2, while the control group received an intravitreal injection of 0.1 mL of ARPE-19 cell suspension transfected with negative control lentivirus. At 1, 2, 3, and 4 wk after PVR modeling, a handheld tonometer was used to measure the intraocular pressure. Moreover, fundus photography and ocular ultrasound examination were performed to detect the retinal proliferation. At 4 wk after modeling, hematoxylin-eosin staining was used to observe the morphological retinal changes, and Western blot was used to determine the protein expressions of ASPP2 and the epithelial-mesenchymal transition(EMT)marker Vimentin in the rabbit retinas.RESULTS:At 1, 2, 3, and 4 wk after modeling, there were no significant changes in intraocular pressure within the experimental and control group of rabbit eyes, either before or after PVR modeling, the success rate of PVR modeling in the experimental group was lower than that in the control group(P<0.05), and the retinal proliferation and structural disorder was less severe in the experimental group. At 4 wk after modeling, the retinal protein expression level of ASPP2 in the experimental group was significantly higher than that in the control group(t=3.193, P=0.033), while the Vimentin protein expression level was significantly lower in the experimental group(t=-3.599, P=0.023).CONCLUSION:ASPP2 may be involved in regulating the process of EMT in retinal pigment epithelial cells, thereby delaying the development and progression of traumatic PVR in rabbit eyes.
2.Rapid health technology assessment of deucravacitinib in the treatment of moderate-to-severe plaque psoriasis
Xing GAO ; Shujing KONG ; Tianya LIU ; Xinran QIU ; Jia HAN
China Pharmacy 2026;37(1):111-116
OBJECTIVE To evaluate the efficacy, safety and cost-effectiveness of deucravacitinib in the treatment of moderate- to-severe plaque psoriasis. METHODS Rapid health technology assessment (HTA) reports, systematic reviews (SR)/meta- analyses, and pharmacoeconomic studies on deucravacitinib for the treatment of moderate-to-severe plaque psoriasis were identified by searching PubMed, Web of Science, Embase, CNKI, Wanfang data and official HTA websites. The search time frame spanned from database inception to July 2025. After literature screening, data extraction, and quality assessment, the study results were subjected to descriptive analysis and synthesis. RESULTS A total of 14 articles were finally included, consisting of 1 HTA report, 10 SR/meta-analyses, and 3 pharmacoeconomic studies. Regarding efficacy, deucravacitinib demonstrated superior efficacy to both placebo and apremilast, with significantly higher response rates for Psoriasis Area and Severity Index 50/75/90/100, Static Physician’ s Global Assessment 0/1, and Dermatology Life Quality Index 0/1, as well as greater reduction in Psoriasis Symptoms and Signs Diary Score (P<0.05). Regarding safety, deucravacitinib was well-tolerated. Although the overall incidence of adverse events (AEs) was higher than placebo, it was not significantly different from apremilast. Moreover, the incidence of serious AEs and the rate of discontinuation due to AEs did not differ significantly from placebo (P>0.05). Regarding cost-effectiveness, deucravacitinib proved to be more cost-effective than apremilast across multiple healthcare system perspectives, including those of the United States, Japan, and China. CONCLUSIONS Deucravacitinib exhibits favorable efficacy, safety, and cost-effectiveness in the treatment of moderate-to-severe plaque psoriasis. Additional real-world studies are warranted to further refine its evaluation.
3.Reflections on the Research of Innovation in Traditional Chinese Medicine Theory
Journal of Traditional Chinese Medicine 2025;66(3):217-221
By analyzing the previous research achievements on the innovation of traditional Chinese medicine (TCM) theory, as well as the development patterns of scientific theory innovation in modern times, we reflect on the development of TCM theory and believe that the main reason for its stagnant development is the close intertwining of science with philosophy, and rationality with mysticism. Additionally, since the Western Renaissance, the rapid development of philosophy, natural sciences and western medicine has led to the slow or even halted development of Chinese traditional philosophy and related traditional natural scientific knowledge, which supports the academic deve-lopment of TCM. It is proposed that, in the context of modern scientific and technological advances, the innovation of TCM theory should follow the general law of scientific and technological development, with a spirit of questioning and critique. This approach should clarify the essential connotations of TCM theory, rebuild the theoretical system of TCM, engage in multidisciplinary research around scientific issues, and propose new concepts, reveal new laws, and create new theories based on new empirical facts.
4.Research Progress on Human Umbilical Cord Mesenchymal Stem Cells in the Treatment of Knee Osteoarthritis
Jin GONG ; Jinjin ZHANG ; Lili CHEN ; Hui WANG ; Yanchao XING
Medical Journal of Peking Union Medical College Hospital 2025;16(1):75-82
Knee osteoarthritis (KOA) is a prevalent degenerative joint disease characterized by synovial inflammation, cartilage loss. Often manifesting as joint pain and limited mobility, it severely affects the quality of life of patients. Traditional treatment methods such as pharmacological injections and surgical interventions primarily aim to alleviate symptoms but have limited effects on cartilage repair. Human umbilical cord mesenchymal stem cells (hUC-MSCs), due to their anti-inflammatory and chondrogenic capabilities, is considered a new hope for the treatment of KOA. This article synthesizes the latest research findings from both domestic and international sources to discuss the theoretical basis for the clinical application of hUC-MSCs in treating KOA, clinical study design, and efficacy evaluation. It also addresses the challenges in the clinical application of hUC-MSCs and explores future directions, in the hope of providing feasible theoretical support for the treatment of KOA with hUC-MSCs.
5.Xixintang-medicated Serum Regulates Aβ25-35-induced Polarization of BV-2 Microglial Cells
Chaokai YANG ; Yongchang DIWU ; Yangyang WU ; Xia XING ; Dengkun WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(6):18-26
ObjectiveTo investigate the effects of Xixintang (XXT)-medicated serum on the amyloid β-protein (Aβ)25-35-induced polarization of BV-2 microglial cells by a cell experiment and uncover the potential mechanisms of this formula in the prevention and treatment of Alzheimer's disease (AD), thus providing scientific evidence for the clinical application of XXT. MethodsBV-2 microglial cells were subcultured. The optimal concentrations of XXT-medicated serum and Aβ25-35 were determined via the cell-counting kit-8 (CCK-8) assay. The cell experiment was carried out with the following groups: blank control, model (Aβ25-35 at 40 μmol·L-1), XXT-medicated serum (Aβ25-35 at 40 μmol·L-1 + 10% XXT-medicated serum), and blank serum (Aβ25-35 at 40 μmol·L-1 + 10% blank serum). After 24 hours of cell incubation, immunofluorescence was used to detect the expression of ionized calcium-binding adaptor molecule 1 (IBA1), CD16/32, and CD206. Real-time PCR was performed to measure the mRNA levels of CD206, CD163, inducible nitric oxide synthase (iNOS), and arginase 1 (Arg-1). Enzyme-linked immunosorbent assay (ELISA) was employed to quantify the levels of nerve growth factor (NGF), iNOS, and Arg-1. The nitric oxide (NO) concentration was determined via the nitrate reductase method. ResultsCompared with the blank control group, the model group showed increased expression of IBA1 and CD16/32 (P<0.01), decreased expression of CD206 (P<0.05), upregulation in the mRNA level (P<0.01) and content (P<0.05) of iNOS, downregulation in the mRNA levels of CD206, CD163, and Arg-1 (P<0.05, P<0.01), lowered levels of Arg-1 and NGF (P<0.05), and an elevation in the NO level (P<0.05). Compared with the model group, the XXT-medicated serum group exhibited reduced expression of IBA1 and CD16/32 (P<0.05, P<0.01) and increased expression of CD206 (P<0.01). Both the content and mRNA level of iNOS were downregulated (P<0.05, P<0.01), while the mRNA levels of CD206, CD163, and Arg-1 were upregulated (P<0.01) in the XXT-medicated serum group. In addition, the XXT-medicated serum group showed elevated levels of Arg-1 and NGF (P<0.05) and a lowered level of NO (P<0.05). The blank serum group showed no statistically significant differences in the measured parameters compared with the model group. ConclusionThe XXT-medicated serum can inhibit the polarization toward the M1 phenotype and promote the polarization toward the M2 phenotype, exerting anti-inflammatory and neurotrophic effects.
6.Exploring Academic Characteristics of Contemporary Experts and Schools in Traditional Chinese Medicine Gynecology in Treating Endometriosis Diseases Based on SrTO
Zhiran LI ; Xiaojun BU ; Xiaodan WANG ; Le ZHANG ; Ruixue LIU ; Jingyu REN ; Xing LIAO ; Weiwei SUN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(6):249-259
ObjectiveStarting from the etiology, pathogenesis, and treatment strategies of endometriosis and adenomyosis, to integrate and sort out the academic characteristics of contemporary renowned experts and schools in the field of traditional Chinese medicine gynecology. MethodsAccording to the systematic review of text and opinion (SrTO) process developed by the Joanna Briggs Institute (JBI) in Australia, this paper determined literature screening criteria by searching China National Knowledge Infrastructure (CNKI), VIP, Wanfang, and China Biomedical Literature Database. Information was extracted after literature screening, and quality evaluation was conducted using the JBI Narrative, Text, and Opinion Systematic Review Strict Evaluation Checklist. The JBI Narrative, Opinion, Text Evaluation, and Review Tool Summary Table was used for information synthesis, and data analysis and display were conducted in the form of text and charts. ResultsThe 146 articles related to 39 renowned experts and 19 articles related to 10 schools of thought were included. Research has found that contemporary experts and schools in traditional Chinese medicine gynecology consider blood stasis as the core pathogenesis in understanding the etiology and pathogenesis of two diseases and related infertility. Their viewpoints varied from multiple aspects such as clinical symptom characteristics, meridian circulation location, pathological product evolution, disease duration, emotional psychology, lifestyle habits, preference for food and drink, innate endowment, and acquired injury. In terms of treatment, it was advocated to divide the stage, treat according to different types, adapt to the times, integrate nature and humans, and combine multiple methods to treat comprehensively when necessary. It was also recommended to skillfully use insects, make good use of classic formulas and small prescriptions, pay attention to protecting the spleen and stomach and regulating emotions, and make good use of self-formulated empirical formulas for internal or external use. Besides, individualized long-term management of patients was also advocated. ConclusionThis study applies the SrTO process to systematically summarize the academic ideas of contemporary renowned experts and schools in traditional Chinese medicine gynecology regarding the causes, mechanisms, diagnosis, and treatments of endometriosis, providing a scientific and standardized reference for future theoretical exploration.
7.Structure and Function of GPR126/ADGRG6
Ting-Ting WU ; Si-Qi JIA ; Shu-Zhu CAO ; De-Xin ZHU ; Guo-Chao TANG ; Zhi-Hua SUN ; Xing-Mei DENG ; Hui ZHANG
Progress in Biochemistry and Biophysics 2025;52(2):299-309
GPR126, also known as ADGRG6, is one of the most deeply studied aGPCRs. Initially, GPR126 was thought to be a receptor associated with muscle development and was primarily expressed in the muscular and skeletal systems. With the deepening of research, it was found that GPR126 is expressed in multiple mammalian tissues and organs, and is involved in many biological processes such as embryonic development, nervous system development, and extracellular matrix interactions. Compared with other aGPCRs proteins, GPR126 has a longer N-terminal domain, which can bind to ligands one-to-one and one-to-many. Its N-terminus contains five domains, a CUB (complement C1r/C1s, Uegf, Bmp1) domain, a PTX (Pentraxin) domain, a SEA (Sperm protein, Enterokinase, and Agrin) domain, a hormone binding (HormR) domain, and a conserved GAIN domain. The GAIN domain has a self-shearing function, which is essential for the maturation, stability, transport and function of aGPCRs. Different SEA domains constitute different GPR126 isomers, which can regulate the activation and closure of downstream signaling pathways through conformational changes. GPR126 has a typical aGPCRs seven-transmembrane helical structure, which can be coupled to Gs and Gi, causing cAMP to up- or down-regulation, mediating transmembrane signaling and participating in the regulation of cell proliferation, differentiation and migration. GPR126 is activated in a tethered-stalk peptide agonism or orthosteric agonism, which is mainly manifested by self-proteolysis or conformational changes in the GAIN domain, which mediates the rapid activation or closure of downstream pathways by tethered agonists. In addition to the tethered short stem peptide activation mode, GPR126 also has another allosteric agonism or tunable agonism mode, which is specifically expressed as the GAIN domain does not have self-shearing function in the physiological state, NTF and CTF always maintain the binding state, and the NTF binds to the ligand to cause conformational changes of the receptor, which somehow transmits signals to the GAIN domain in a spatial structure. The GAIN domain can cause the 7TM domain to produce an activated or inhibited signal for signal transduction, For example, type IV collagen interacts with the CUB and PTX domains of GPR126 to activate GPR126 downstream signal transduction. GPR126 has homology of 51.6%-86.9% among different species, with 10 conserved regions between different species, which can be traced back to the oldest metazoans as well as unicellular animals.In terms of diseases, GPR126 dysfunction involves the pathological process of bone, myelin, embryo and other related diseases, and is also closely related to the occurrence and development of malignant tumors such as breast cancer and colon cancer. However, the biological function of GPR126 in various diseases and its potential as a therapeutic target still needs further research. This paper focuses on the structure, interspecies differences and conservatism, signal transduction and biological functions of GPR126, which provides ideas and references for future research on GPR126.
8.Enzyme-directed Immobilization Strategies for Biosensor Applications
Xing-Bao WANG ; Yao-Hong MA ; Yun-Long XUE ; Xiao-Zhen HUANG ; Yue SHAO ; Yi YU ; Bing-Lian WANG ; Qing-Ai LIU ; Li-He ZHANG ; Wei-Li GONG
Progress in Biochemistry and Biophysics 2025;52(2):374-394
Immobilized enzyme-based enzyme electrode biosensors, characterized by high sensitivity and efficiency, strong specificity, and compact size, demonstrate broad application prospects in life science research, disease diagnosis and monitoring, etc. Immobilization of enzyme is a critical step in determining the performance (stability, sensitivity, and reproducibility) of the biosensors. Random immobilization (physical adsorption, covalent cross-linking, etc.) can easily bring about problems, such as decreased enzyme activity and relatively unstable immobilization. Whereas, directional immobilization utilizing amino acid residue mutation, affinity peptide fusion, or nucleotide-specific binding to restrict the orientation of the enzymes provides new possibilities to solve the problems caused by random immobilization. In this paper, the principles, advantages and disadvantages and the application progress of enzyme electrode biosensors of different directional immobilization strategies for enzyme molecular sensing elements by specific amino acids (lysine, histidine, cysteine, unnatural amino acid) with functional groups introduced based on site-specific mutation, affinity peptides (gold binding peptides, carbon binding peptides, carbohydrate binding domains) fused through genetic engineering, and specific binding between nucleotides and target enzymes (proteins) were reviewed, and the application fields, advantages and limitations of various immobilized enzyme interface characterization techniques were discussed, hoping to provide theoretical and technical guidance for the creation of high-performance enzyme sensing elements and the manufacture of enzyme electrode sensors.
9.PTPRD demethylation regulates the proliferation, migration, and chemoresistance of gastric cancer cells through the PI3K/Akt/mTOR pathway
LIU Yanhuia,b ; GAO Ziyua ; REN Pengb ; DU Yuxinb ; LIU Caixiaa ; XING Zhiweia
Chinese Journal of Cancer Biotherapy 2025;32(1):48-55
[摘 要] 目的:探究蛋白酪氨酸磷酸酶D(PTPRD)去甲基化通过PI3K/Akt/mTOR通路对胃癌细胞增殖、迁移及化疗耐药性的影响。方法:体外培养胃癌细胞MKN-74、MKN-45和人胃黏膜上皮细胞GES-1并检测PTPRD表达。常规培养MKN-45细胞及耐药MKN-45/5-FU细胞,分别转染PTPRD空载体(NC组、NC/5-FU组)、PTPRD过表达腺病毒(PTPRD组、PTPRD/5-FU组)、shRNA空载体(sh-NC组、sh-NC/5-FU组)、shRNA-PTPRD慢病毒(sh-PTPRD组、sh-PTPRD/5-FU组)和PTPRD过表达腺病毒 + 10 μmol/L 740Y-P处理(PTPRD + 740Y-P组、PTPRD + 740Y-P/5-FU组)。MTT法、划痕愈合实验检测各组细胞的增殖活力和迁移能力,细胞自噬实验检测细胞的自噬水平,WB法检测细胞中EMT和PI3K/Akt/mTOR通路相关蛋白的表达。采用0、2.5、5、10、20、40 μmol/L的5-aza处理MKN-45细胞,qPCR法、MTT法检测细胞中PTPRD mRNA表达和细胞增殖活力。结果:PTPRD mRNA和蛋白在胃癌细胞中均呈低表达(P < 0.05)。与MKN-45组相比,PTPRD组自噬体与自噬溶酶体数量、PTPRD、上皮钙黏素(E-cadherin)、BAX蛋白表达均增加(均P < 0.05),细胞增殖活力、细胞迁移率、p-PI3K、波形蛋白(vimentin)、p-Akt、p-mTOR蛋白表达均降低(均P < 0.05),sh-PTPRD组细胞增殖活力、细胞迁移率、p-PI3K、vimentin、p-Akt、p-mTOR蛋白表达均增加(均P < 0.05),自噬体与自噬溶酶体数量、PTPRD、E-cadherin、BAX蛋白表达均减少(均P < 0.05);与PTPRD组相比,PTPRD + 740Y-P组细胞增殖活力、细胞迁移率、p-PI3K、vimentin、p-Akt、p-mTOR蛋白表达均增加(均P < 0.05),自噬体与自噬溶酶体数量、PTPRD、E-cadherin、BAX蛋白表达减少(均P < 0.05)。随着5-aza浓度的增加,MKN-45细胞中PTPRD mRNA表达增加、细胞增殖活力均降低(均P < 0.05)。与MKN-45/5-FU组相比,PTPRD/5-FU组细胞迁移率、细胞增殖活力均降低(均P < 0.05),sh-PTPRD/5-FU组细胞迁移率、细胞增殖活力均增加(均P < 0.05);与PTPRD/5-FU组相比,PTPRD + 740Y-P/5-FU组细胞迁移率、细胞增殖活力均增加(均P < 0.05)。结论:PTPRD在胃癌细胞中呈低表达状态,PTPRD去甲基化可能通过抑制PI3K/Akt/mTOR信号通路抑制胃癌细胞增殖、迁移并增强其对化疗的敏感性。
10.Study on preparation technology and quality standard of Jineijin danggui ruchuang ointment
Xiaojun PANG ; Yan XIE ; Xing CHEN
China Pharmacy 2025;36(4):447-453
OBJECTIVE To optimize the preparation technology of Jineijin danggui ruchuang ointment and to establish its quality standard. METHODS Using oil phase dosage, emulsifier dosage and emulsification temperature as the indicators, the preparation technology of Jineijin danggui ruchuang ointment was optimized by response surface method. Gallus gallus domesticus and Angelica sinensis in the ointment were identified by TLC. The property of the ointment was observed, and its particle size and deliverable volume were inspected according to Chinese Pharmacopoeia. The contents of uridine, ferulic acid and ligustilide in the ointment were determined by high-performance liquid chromatography. RESULTS The optimal preparation technology of Jineijin danggui ruchuang ointment was as follows: 4.0 g of white vaseline, 7.0 g of liquid paraffin, 5.0 g of lanolin (oil phase), 0.44 g of triethanolamine as the emulsifier, and emulsification temperature of 78 ℃ . Jineijin danggui ruchuang ointment prepared according to the optimal preparation method was a beige paste, and its particle size and deliverable volume inspection all met the requirements of the Chinese Pharmacopoeia. The identification of TLC for G. gallus domesticus and A. sinensis obtained satisfactory results. The linear ranges of uridine, ferulic acid and ligustilide were 1.6-25.6 μg/mL, 0.003 15-0.100 8 mg/mL, 0.006- 0.192 mg/mL (all r>0.999). RSD for the inspection, stability, reproducibility and recovery tests were all less than 2%( n=6). The average contents of uridine, ferulic acid and ligustilide were 0.081 2, 0.100 0 and 0.396 9 mg/g, respectively. CONCLUSIONS The optimal preparation technology can be used for the production of the in-hospital preparation of Jineijin danggui ruchuang ointment; the content determination method can be used for the quality control of the ointment.

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