1.Comparison of Wild and Cultivated Bupleurum scorzonerifolium Based on Traditional Quality Evaluation
Changsheng YUAN ; Feng ZHOU ; Xingyu LIU ; Yu SHI ; Yihan WANG ; Huaizhu LI ; Yongliang LI ; Shan GUAN ; Huaizhong GAO ; Yanmeng LIU ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):203-214
ObjectiveTo characterize the quality differences among different germplasm and introduced varieties of Bupleurum scorzonerifolium roots(BSR), and explore the underlying molecular mechanisms, providing a basis for high-quality production and quality control. MethodsWild BSR from Yulin(YLW) served as the quality reference, we conducted comparative analysis among YLW, locally domesticated wild germplasm in Yulin(YLC3), Daqing germplasm introduced and cultivated in Yulin(YLDQC3), and locally cultivated germplasm in Daqing(DQC3). A combination of traditional pharmacognostic methods and modern multi-omics analyses was employed, including macroscopic traits(appearance, odor), microscopic features(proportions of cork, phloem, xylem), cell wall component contents(hemicellulose, cellulose, lignin), carbohydrate contents(starch, water-soluble polysaccharides), marker compound contents(ethanol-soluble extracts, total saponins, liposoluble extracts, and saikosaponins A, B2, C, D), metabolomics, and transcriptomics, in order to systematically characterize quality differences and investigate molecular mechanisms among these samples. ResultsMacroscopically, Yulin-produced BSR(YLW, YLC3, YLDQC3) exhibited significantly greater weight, length, and upper and middle diameters than Daqing-produced BSR(DQC3). Odor-wise, YLW and YLC3 had a a fragrance taste, YLDQC3 had a rancid oil odor, and DQC3 had a sweet and fragrant taste. Microscopically, Yulin germplasm(YLW, YLC3) and Daqing germplasm(YLDQC3, DQC3) shared similar structural features, respectively. However, Yulin germplasm showed significantly higher proportions of cork and phloem, as well as stronger xylem vessel staining intensity compared to Daqing germplasm. Regarding various component contents, Yulin germplasm contained significantly higher levels of ethanol-soluble extracts, total saponins, and saikosaponins A, B2, C, D, while Daqing germplasm had significantly higher levels of hemicellulose, starch, and liposoluble extracts. After introduction to Yulin, the Daqing germplasm(YLDQC3) showed increased starch, water-soluble polysaccharides and liposoluble extracts contents, decreased cell wall component content, but no significant difference in other component contents. Metabolomics revealed that saponins and terpenes accumulated significantly in Yulin germplasm, while alcohols and aldehydes accumulated predominantly in Daqing germplasm. Transcriptomics indicated similar gene expression patterns within the same germplasm but specificity between different germplasms. Integrative metabolomic-transcriptomic analysis identified 145 potential key genes associated with the saikosaponin biosynthesis pathway, including one acetyl-coenzyme A(CoA) acetyltransferase gene(ACAT), one 3-hydroxy-3-methylglutaryl-coenzyme A synthase gene(HMGS), two hydroxymethylglutaryl-CoA(HMG-CoA) reductase genes(HMG), one phosphomevalonate kinase gene(PMK), one 1-deoxy-D-xylose-5-phosphate synthase gene(CLA), one hydroxymethylbuten-1-aldol synthase gene(HDR), two farnesyl pyrophosphate synthase genes(FPPS), one squalene synthase gene(SQS), one β-amyrin synthase gene(BAS), 102 cytochrome P450(CYP450) gene family members, and 32 uridine diphosphate-glucuronosyltransferase(UGT) gene family members. ConclusionAmong the three cultivated types, YLC3 most closely resembles YLW in appearance, microscopic features, contents of major bioactive constituents, metabolomic and transcriptomic profiles. Yulin germplasm exhibits superior saponin synthesis capability compared to Daqing germplasm, and Yulin region is more suitable for the growth of B. scorzonerifolium. Based on these findings, it is recommended that artificial cultivation in northern Shaanxi and similar regions utilize the local Yulin germplasm source cultivated for at least three years.
2.Comparison of Wild and Cultivated Polygalae Radix Based on Traditional Quality Evaluation
Yihan WANG ; Yanmeng LIU ; Huaizhu LI ; Yongliang LI ; Shan GUAN ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):215-224
ObjectiveBased on the traditional quality evaluation methods summarized in previous dynasties, this paper systematically contrasted the quality differences between wild Polygalae Radix(WPR) and cultivated Polygalae Radix(CPR) from the aspects of character, microscope and chemical composition by modern scientific and technological means, providing a basis for high-quality production and quality control. MethodsCPR and local WPR in Yulin city, Shaanxi province from 1 to 6 years were collected, and a systematic comparative analysis was conducted using traditional pharmacognosy research methods combined with modern multi-omics analysis techniques, including character traits(length, weight, diameter), cross-sectional microscopic features(proportions of cork, phloem, xylem, etc), cell wall component content(hemicellulose, cellulose, lignin), extracts content(water-soluble extract and alcohol-soluble extract), carbohydrate content(starch, water-soluble polysaccharides), contents of total flavonoids, total saponins and specific marker compounds(3,6′-disinapoyl sucrose, polygalaxanthone Ⅲ, tenuifoliside A, tenuifoliside C, sibiricose A5 and A6) and other indexes. Ultra-high performance liquid chromatography-quadrupole-time-of-flight mass spectrometry(UPLC-Q-TOF-MS) was employed to conduct comparative analysis of secondary metabolites in WPR and CPR, and multivariate statistical analysis such as principal component analysis(PCA) and orthogonal partial least squares-discriminant analysis(OPLS-DA) were combined to screen the key differential components of them. ResultsIn terms of appearance, there were significant differences between WPR and CPR. The characteristics of WPR conformed to the "thick wrinkles on the epidermis" recorded in ancient books, featuring a wrinkled surface and grayish-brown appearance. However, CPR had a finer texture and a yellowish white appearance, with weight, length, and diameter increasing with longer cultivation periods. In terms of microscopy, WPR exhibited a thick cork layer with fissures in the phloem, whereas CPR had a thinner cork layer with uniformly arranged cork cells. Younger PR specimens showed numerous phloem fissures in cross-sections, while older specimens display progressively denser arrangements of phloem parenchyma cells. In terms of the contents of various major components, the contents of water-soluble extract, starch and total saponins in WPR were inversely proportional to the root diameter, while the contents of water-soluble extract, water-soluble polysaccharides and total saponins in CPR decreased with the increase of planting years. The content of xanthones in WPR was significantly higher than that of CPR, while the contents of other major components showed no significant change pattern. Among the six indicator components, the average content of sibiricose A5 in WPR was significantly higher than that of CPR, followed by slightly higher content of tenuifoliside A. In CPR, the relative content of 3,6′-disinapoyl sucrose and tenuifoliside A was the highest. The former showed an increase in volatility with increasing cultivation years, while the latter showed a decrease in volatility. The results of differential compound analysis based on UPLC-Q-TOF-MS showed that there were significant differences in metabolites between WPR and CPR samples. Among them, the seven compounds with the largest differences among WPR samples of different thicknesses were polygalasaponins, and for CPR with different planting years, the main differential compounds were oligosaccharide esters. ConclusionThere are differences between WPR and CPR in character, microscopic structure and chemical composition, and some components are inversely proportional with the increase of diameter and cultivation duration due to the distribution characteristics. However, the longer the cultivation years of PR, the closer it is to the "thick wrinkles on the epidermis" of WPR, which has been respected by generations. It is suggested that this traditional character combined with modern component contents should be used as the index of artificial cultivation and quality control of PR.
3.Pharmacological Effect and Preparation Development of Geniposide: A Review
Yongmei GUAN ; Yidan LIU ; Hua ZHANG ; Haiyan ZHANG ; Zhenzhong ZANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(1):317-326
Geniposide, the primary active component of the traditional Chinese medicine Gardeniae Fructus, is a water-soluble iridoid glycoside. Pharmacological studies have demonstrated that geniposide exhibits various biological activities, including hepatoprotective, anti-inflammatory, analgesic, neuroprotective, antidepressant effects, and inhibitory activity against ischemia-reperfusion injury. Recent research has revealed its promising potential in preventing and treating diseases such as atherosclerosis and osteoporosis, indicating broad application prospects. Numerous in vitro and in vivo studies indicate that the pharmacodynamic mechanisms of geniposide are primarily associated with the inhibition of inflammatory responses and oxidative stress, improvement of lipid metabolism, and regulation of apoptosis. However, due to its high water solubility and rapid metabolism in vivo, geniposide suffers from low oral bioavailability, which limits its therapeutic efficacy and clinical application. In recent years, various formulations, such as creams, cubic liquid crystals, hydrogels, and liposomes, have been developed to address its bioavailability issues. This article reviewed the latest research progress on the pharmacological activities and formulation development of geniposide by analyzing domestic and international literature from the past decade, aiming to provide a theoretical basis for further research, development, and utilization of geniposide and its formulations.
4.Analysis of content needs for dietary nutrition health education among college students
GUAN Zihang*, CAO Mingxin, LIU Ting, HU Yiyao, LIU Yuanqing, LIU Man
Chinese Journal of School Health 2026;47(2):194-198
Objective:
To identify the effective needs of college students for dietary nutrition health education content, so as to provide a scientific basis for optimizing the health education strategies in colleges.
Methods:
The literature analysis method, focus group interviews and Delphi expert consultation method were used to construct a survey questionnaire on dietary nutrition health education for college students. From January to March 2024, a total of 597 college students from six colleges in Shandong Province were selected through convenience sampling to complete the questionnaire independently by scanning the two dimensional code on questionnaire star. The Kano model was used to define the content demands of college students for dietary nutrition education, and the differences in demands were analyzed by calculating satisfied influence (SI) and dissatisfied influence (DSI).
Results:
The compiled questionnaire was divided into 7 dimensions and 25 items. The overall demand level analysis of college students included 3 essential attribute demands, namely, the recommended intake and various forms of dairy products (34.17%), the role of whole grains in health with their scientific intake forms and recommended amounts (31.99%), and the intake of beans (30.15%); 7 expected attribute demands included the introduction of recommended intensity of different activities (35.01%), how to achieve a healthy weight and the balance between diet and exercise (41.54%), the energy consumed by different exercises in a unit of time ( 38.36 %), the selection of healthy snacks (36.68%), the types of infectious diseases of the digestive system and how to prevent and control them (25.96%), the causes and judgments with manifestations of nutrition related diseases among college students ( 28.14 %), and the hotspots of attention on nutrition related diseases among college students (24.46%); 4 attractive attribute demands contained the introduction of the recommended activity levels for different periods such as daily and weekly (28.81%), the introduction of the importance of activities and the harm of prolonged sitting and ways to avoid it (28.64%), the nutritional value of animal foods and eating suggestions (23.45%), and the scientific intake suggestions for various processed animal foods (22.11%); the remaining were 11 attribute demands with no differences. In the quadrant diagram analysis, the demand items located in the maintenance zone, competitive advantage zone, improvement zone, and minor improvement zone were 5, 5, 8, and 7, respectively.
Conclusions
College students have different demands in dietary nutrition health education, and whether these demands are met affects their satisfaction in different ways. Among them, education on the intake of dairy products, whole grains, and beans has the greatest impact on satisfaction.
5.Epidemic characteristics and disease burden of brucellosis in Tongliao City in 2018 - 2023
Shanhong LIU ; Tu BA ; Li MA ; Na GUAN ; Lin XI ; Na TA
Journal of Public Health and Preventive Medicine 2026;37(2):74-78
Objective To comprehensively analyze the current epidemic characteristics and disease burden of brucellosis in Tongliao City, and to provide a basis for the prevention and control strategy of brucellosis in Tongliao City. Methods The report data of brucellosis in Tongliao City from 2018 to 2023 were collected. Descriptive methods were used for data analysis, and the disability-adjusted life years and indirect economic losses were calculated. Results From 2018 to 2023, a total of 22 034 cases were reported in Tongliao City, with an average annual incidence of 136.17/100 000. The incidence was statistically different between men and women ( χ2=12.23, P=0.032). The majority of cases were farmers (94.25%), followed by herdsmen (1.67%). The age group was concentrated between 30-60 years old (79.30%), among which the majority of cases were in the 40-50 years group (6 883/22 034). The onset time had seasonal characteristics, and the peak period was from March to August (the seasonal index was between 115.40%-151.29%). In terms of regional distribution, cases were reported in all counties (banners). The average annual incidence was highest in Kulun Banner (233.85/100 000) and Zalut Banner (210.13/100 000), and lowest in Keerqin District (42.28/100 000) and Holingol City (31.87/100 000). The analysis of disease burden showed that a total of 677.55 person-years (YLD) were lost from 2018 to 2023, with an average annual loss of 112.92 person-years. The total indirect economic loss was 59.3576 million yuan, with an average annual loss of 9.892 9 million yuan, and the people over 60 years old had the lowest annual loss. Conclusion The overall brucellosis epidemic in Tongliao City has shown a fluctuating downward trend. The epidemic prevention and control should be strengthened in farmers, people aged 40-50 years old, and areas such as Zalut Banner and Kulun Banner to further control the epidemic of brucellosis.
6.Study on the mechanism of Huatan qushi huoxue formula in improving metabolic dysfunction-associated steatohepatitis by inhibiting macrophage pyroptosis
Yajie GUAN ; Qizhen ZHANG ; Junjiao XU ; Yijia SONG ; Dongfang SHANG ; Wenxia ZHAO ; Minghao LIU
China Pharmacy 2026;37(7):864-869
OBJECTIVE To focus on the classic NOD-like receptor protein 3 (NLRP3)/Caspase-1/gasdermin D (GSDMD) pyroptosis pathway and explore the mechanism by which Huatan qushi huoxue formula (HQHF) inhibits macrophage pyroptosis to ameliorate metabolic dysfunction-associated steatohepatitis (MASH). METHODS RAW264.7 cells were divided into 5 groups: Control group (10% blank serum), Model group [10% blank serum+5 μg/mL lipopolysaccharide (LPS)], HQHF-L group (2.5% drug-containing serum+7.5% blank serum+5 μg/mL LPS), HQHF-M group (5% drug-containing serum+5% blank serum+5 μg/mL LPS), and HQHF-H group (10% drug-containing serum+5 μg/mL LPS). After 24 h of routine culture post-administration, cells and supernatants were collected for assays. Cell morphology was observed via scanning electron microscopy and phase-contrast microscopy; localization and expression of gasdermin D-N (GSDMD-N) were observed by immunofluorescence. Interleukin-1β (IL-1β) and IL-18 contents in supernatants were detected by ELISA; mRNA and protein expressions of NLRP3, Caspase-1, and GSDMD were measured using real-time PCR and Western blot. RESULTS Compared with the Control group, the Model group showed typical pyroptotic morphology (cell membrane bulging and pore formation), increased aggregation and fluorescence intensity of GSDMD-N on the cell membrane ( P <0.05), significantly increased the contents of IL-1β and IL-18 in cell supernatants ( P <0.05), and significantly up-regulated mRNA and protein expressions of NLRP3, Caspase-1, and GSDMD in cells ( P <0.05). Compared with the Model group, the HQHF-L, HQHF-M and HQHF-H groups showed improved pyroptotic morphology, reduced membrane localization and significantly weakened fluorescence intensity of GSDMD-N ( P <0.05), significantly decreased the contents of IL-1β and IL-18 in cell supernatants ( P <0.05), and significantly down-regulated mRNA and protein expressions of NLRP3, Caspase-1, and GSDMD in cells ( P <0.05). CONCLUSIONS HQHF inhibits LPS-induced macrophage pyroptosis, and its mechanism of improving MASH may be associated with the suppression of the activation of the classical NLRP3/Caspase-1/GSDMD pyroptosis pathway.
7.Preparation of Triptolide-Chuanxiong Rhizoma Extract Ethanol Transfersomes and Analysis on Its in Vitro Anti-inflammatory Mechanism
Ling TAO ; Zhiyan WAN ; Yidan LIU ; Zhe LI ; Zhenzhong ZANG ; Weifeng ZHU ; Yongmei GUAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):210-218
ObjectiveTo prepare triptolide-Chuanxiong Rhizoma extract ethanol transfersomes(TP-CX@TESs), conduct its quality evaluation, and investigate its in vitro anti-inflammatory efficacy and the underlying mechanisms. MethodsTP-CX@TESs was prepared via the ultrasonic injection method. With encapsulation efficiency and particle size as evaluation indicators, Box-Behnken design-response surface methodology(BBD-RSM) was employed to optimize the formulation process. The TP-CX@TESs prepared under the optimal process was characterized and evaluated for in vitro transdermal performance. A lipopolysaccharide(LPS)-induced RAW264.7 cell inflammation model was established. After 24 h of drug intervention, the levels of inflammatory factors such as nitric oxide(NO), interleukin-6(IL-6), and tumor necrosis factor-α(TNF-α) in the cell supernatant were detected. Western blot was used to determine the protein expression levels of Janus kinase 2(JAK2), signal transducer and activator of transcription 3(STAT3), and α7 nicotinic acetylcholine receptor(α7nAChR), and real-time fluorescence quantitative polymerase chain reaction(Real-time PCR) was applied to measure the mRNA expression levels of JAK2, STAT3, the encoding gene of α7nAChR(CHRNA7), and nuclear transcription factor-κB(NF-κB). ResultsResults of BBD-RSM showed that the optimal formulation for preparing TP-CX@TESs was as follows:egg yolk lecithin content of 2.3%, ethanol volume fraction of 30%, and ratio of polysorbate-80 to egg yolk lecithin of 2∶5. Microscopic characterization revealed that TP-CX@TESs exhibited a spherical-like structure with a particle size of (105.60±3.85) nm, a polydispersity index of 0.19±0.03, and a Zeta potential of (-15.89±0.98) mV. The encapsulation efficiencies of triptolide, ferulic acid, and ligustilide were (76.88±4.40)%, (78.84±4.40)%, and (65.88±0.06)%, respectively. Both in vitro release and transdermal penetration of triptolide, ferulic acid, and ligustilide in TP-CX@TESs all followed the first-order kinetic model, showing a certain sustained-release property. Experimental results in RAW264.7 cells indicated that TP-CX@TESs significantly inhibited the release of NO, TNF-α, and IL-6(P<0.01), remarkably upregulated the protein expression levels of STAT3 and α7nAChR(P<0.01), increased the mRNA expression level of CHRNA7, and significantly downregulated the mRNA expression level of NF-κB(P<0.05, P<0.01). ConclusionThe optimized formulation process of TP-CX@TESs is simple and feasible, along with favorable in vitro release property, good transdermal permeability, and excellent in vitro anti-inflammatory activity, the mechanism is related to the inhibition of NF-κB.
8.Preparation of Triptolide-Chuanxiong Rhizoma Extract Ethanol Transfersomes and Analysis on Its in Vitro Anti-inflammatory Mechanism
Ling TAO ; Zhiyan WAN ; Yidan LIU ; Zhe LI ; Zhenzhong ZANG ; Weifeng ZHU ; Yongmei GUAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):210-218
ObjectiveTo prepare triptolide-Chuanxiong Rhizoma extract ethanol transfersomes(TP-CX@TESs), conduct its quality evaluation, and investigate its in vitro anti-inflammatory efficacy and the underlying mechanisms. MethodsTP-CX@TESs was prepared via the ultrasonic injection method. With encapsulation efficiency and particle size as evaluation indicators, Box-Behnken design-response surface methodology(BBD-RSM) was employed to optimize the formulation process. The TP-CX@TESs prepared under the optimal process was characterized and evaluated for in vitro transdermal performance. A lipopolysaccharide(LPS)-induced RAW264.7 cell inflammation model was established. After 24 h of drug intervention, the levels of inflammatory factors such as nitric oxide(NO), interleukin-6(IL-6), and tumor necrosis factor-α(TNF-α) in the cell supernatant were detected. Western blot was used to determine the protein expression levels of Janus kinase 2(JAK2), signal transducer and activator of transcription 3(STAT3), and α7 nicotinic acetylcholine receptor(α7nAChR), and real-time fluorescence quantitative polymerase chain reaction(Real-time PCR) was applied to measure the mRNA expression levels of JAK2, STAT3, the encoding gene of α7nAChR(CHRNA7), and nuclear transcription factor-κB(NF-κB). ResultsResults of BBD-RSM showed that the optimal formulation for preparing TP-CX@TESs was as follows:egg yolk lecithin content of 2.3%, ethanol volume fraction of 30%, and ratio of polysorbate-80 to egg yolk lecithin of 2∶5. Microscopic characterization revealed that TP-CX@TESs exhibited a spherical-like structure with a particle size of (105.60±3.85) nm, a polydispersity index of 0.19±0.03, and a Zeta potential of (-15.89±0.98) mV. The encapsulation efficiencies of triptolide, ferulic acid, and ligustilide were (76.88±4.40)%, (78.84±4.40)%, and (65.88±0.06)%, respectively. Both in vitro release and transdermal penetration of triptolide, ferulic acid, and ligustilide in TP-CX@TESs all followed the first-order kinetic model, showing a certain sustained-release property. Experimental results in RAW264.7 cells indicated that TP-CX@TESs significantly inhibited the release of NO, TNF-α, and IL-6(P<0.01), remarkably upregulated the protein expression levels of STAT3 and α7nAChR(P<0.01), increased the mRNA expression level of CHRNA7, and significantly downregulated the mRNA expression level of NF-κB(P<0.05, P<0.01). ConclusionThe optimized formulation process of TP-CX@TESs is simple and feasible, along with favorable in vitro release property, good transdermal permeability, and excellent in vitro anti-inflammatory activity, the mechanism is related to the inhibition of NF-κB.
9.IL-22 impairs NK cell function and promotes cisplatin resistance in bladder cancer cells via activating the STAT3 signaling axis
YANG Yunjie1 ; CHEN Yang2 ; LIU Qi3 ; GUAN Lixian2 ; LIANG Gengqi2
Chinese Journal of Cancer Biotherapy 2026;33(3):280-287
[摘 要] 目的:探讨IL-22通过STAT3信号轴损害NK细胞功能并促进膀胱癌细胞耐药的机制。方法:常规培养T24细胞,用梯度递增法构建耐药T24/顺铂(DDP)细胞。将细胞分为对照组(不处理)、DDP组、IL-22组、IL-22 + DDP组、IL-22 + anti-IL-22组、IL-22 + DDP + Stattic(STAT3抑制剂)组。qPCR法检测各组T24细胞中IL-22、cyclin D1、Bcl-2 mRNA的表达,WB法检测各组细胞中BAX、BCL2和p-STAT3的表达,CCK-8法检测各组细胞的增殖活性,流式细胞术检测各组细胞的凋亡,ELISA检测各组细胞上清液中乳酸脱氢酶(LDH)、TNF-α、IFN-γ、颗粒酶B(GzmB)和穿孔素(PRF)蛋白的水平。结果:T24/DDP细胞对DDP敏感性降低(P < 0.05);其耐药相关基因P-糖蛋白(P-gp)、肺耐药蛋白(LRP)、多药耐药相关蛋白1(MRP1)和IL-22及其受体表达水平均明显升高(均P < 0.05),说明T24/DDP细胞构建成功。与对照组比较,DDP组T24细胞的增殖活力明显降低、凋亡率升高、BAX蛋白表达升高、BCL2表达下降(均P < 0.05);与DDP组比较,IL-22 + DDP组T24细胞的增殖活明显升高、凋亡率明显下降、BAX蛋白表达降低、BCL2表达升高(均P < 0.05),表明IL-22通过调节BAX/Bcl-2的表达促进T24细胞对DDP耐药性。与对照组比较,IL-22组T24细胞总细胞和核中p-STAT3表达水平均明显升高(均P < 0.05);与IL-22组比较,IL-22 + anti IL-22组T24细胞中 p-STAT3水平明显降低(P < 0.05),说明IL-22激活T24细胞中STAT3的磷酸化过程,并促进其转核。与对照组比较,DDP组T24与NK92细胞共培养上清液中LDH、TNF-α、IFN-γ、GzmB及PRF蛋白水平均明显升高(均P < 0.05),与DDP组比较,IL-22 + DDP组共培养上清液中上述蛋白水平均明显降低(均P < 0.05);与对照组比较,IL-22组共培养上清液中LDH、TNF-α、IFN-γ、GzmB及PRF蛋白水平明显降低(均P < 0.05);与IL-22组比较,IL-22 + Stattic组共培养上清液中上述蛋白水平均明显升高(均P < 0.05),说明IL-22可降低NK92细胞对T24细胞的毒性,STAT3抑制剂可逆转此作用。与DDP组比较,IL-22 + DDP组T24细胞增殖活力明显升高(P < 0.05);与IL-22 + DDP组比较,IL-22 + DDP + Stattic组T24细胞增殖活力明显降低(P < 0.05);与DDP组比较,IL-22 + DDP组T24细胞的凋亡率明显升高(P < 0.05);与IL-22 + DDP组比较,IL-22 + DDP + Stattic组T24细胞的凋亡率明显升高(P < 0.05),说明IL-22调控STAT3影响T24细胞DDP耐药性及NK细胞免疫功能。结论: IL-22通过激活STAT3信号轴促进T24细胞的DDP耐药性,抑制NK细胞功能。
10.Genetic analysis of a de novo EFTUD2 variant causing Mandibulofacial dysostosis with microcephaly in a fetus.
Jianyu REN ; Xiaojiao GUAN ; Shuang LIU ; Yousheng YAN ; Shufa YANG
Chinese Journal of Medical Genetics 2026;43(4):288-294
OBJECTIVE:
To investigate the genetic etiology of a fetus diagnosed with Mandibulofacial dysostosis with microcephaly (MFDM).
METHODS:
A fetus that underwent prenatal diagnosis at Beijing Obstetrics and Gynecology Hospital, Capital Medical University, on May 19, 2025 was selected for analysis. Results of fetal ultrasound findings, chromosomal karyotyping, copy number variation sequencing (CNV-seq), and whole-exome sequencing (WES) were collected. Sanger sequencing was performed for familial validation of the pathogenic variant. The Human Protein Atlas (HPA), STRING, and Simple ClinVar databases were queried to characterize the biological features of the candidate gene. Three-dimensional structures of the wild-type and variant proteins were modeled and analyzed, and the evolutionary conservation of the affected amino acid was assessed using UGENE. Prenatal phenotypes associated with EFTUD2 variants were summarized through a review of the literature. This study was approved by the Ethics Committee of Beijing Obstetrics and Gynecology Hospital, Capital Medical University (Ethics No.: 2025-KY-029-01).
RESULTS:
At 23+2 weeks of gestation, ultrasound examination revealed bilateral microtia with low-set ears, mild micrognathia with a reduced mandibular-facial angle, a single umbilical artery, a slightly narrow aortic diameter, and trivial mitral regurgitation. Amniotic fluid karyotyping and CNV-seq showed no abnormalities. WES identified a de novo, previously unreported EFTUD2 variant, c.698dupA (p.V235Gfs*27), in the fetus. This frameshift variant is predicted to alter the structural integrity of the EFTUD2 protein. Literature review indicated that micrognathia and microtia or low-set ears are the most common sonographic features in fetuses with EFTUD2 variants, while secondary findings may include abnormal stomach bubble, cleft palate, single umbilical artery, gastrointestinal atresia, polyhydramnios, and reduced aortic diameter.
CONCLUSION
The EFTUD2: c.698dupA (p.V235Gfs*27) variant is likely the genetic cause underlying MFDM in this fetus.
Humans
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Mandibulofacial Dysostosis/diagnostic imaging*
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Microcephaly/diagnostic imaging*
;
Female
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Pregnancy
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Ribonucleoprotein, U5 Small Nuclear/chemistry*
;
Peptide Elongation Factors/chemistry*
;
Fetus
;
DNA Copy Number Variations/genetics*
;
Adult
;
Ultrasonography, Prenatal


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