1.Construction of pharmaceutical service quality evaluation system for Chongqing’s compact urban medical groups and empirical investigation
Yan CHEN ; Zheng DENG ; Binbin LIAO ; Yongwei ZHOU ; Guangxian WANG ; Liu YANG
China Pharmacy 2026;37(20):2654-2659
OBJECTIVE To construct a pharmacy service quality evaluation system, identify weaknesses in the integrated development of pharmacy services, and provide a reference for the homogenized and high-quality development of pharmacy services in compact urban medical groups.METHODS Guided by the five core dimensions of the Servperf model, the Delphi method was used to screen and optimize items, and a tripartite pharmacy service quality evaluation system, covering clinicians, pharmacists, and patients, adapted to the characteristics of compact urban medical groups was constructed. A multicenter cross-sectional empirical investigation was conducted in six compact urban medical groups in Chongqing using the evaluation system.RESULTS Through two rounds of Delphi consultation with 12 experts, a tripartite pharmacy service quality evaluation system was successfully constructed, comprising 5 dimensions and 78 items (24 for clinical pharmacists, 23 for clinical medical staff, and 31 for patients and family members). The Cronbach’s α coefficients for all dimensions exceeded 0.81, and the KMO values all exceeded 0.7. A total of 1 339 valid questionnaires were collected, including 279 from clinical pharmacists, 727 from clinical medical staff, and 333 from patients and family members. The empirical investigation showed that the overall quality of regional basic pharmacy services was good, but significant inter-group differences existed in service perceptions among the three groups. The score differences across the five dimensions were all statistically significant among the three groups (all P <0.001). Except for the tangibles dimension, in which clinical medical staff scored significantly lower than clinical pharmacists and patients/family members, patients/family members scored significantly higher than clinical medical staff and clinical pharmacists in the other four dimensions ( P <0.05). For the 78 items, expert expectations largely matched the perceptions of the three groups, with a mean difference of 0.08 points; only 13 items showed a difference exceeding 0.5 points, representing marked gap,with “participating in multidisciplinary team consultation and making effective recommendations” showing the largest difference of 0.94 points.CONCLUSIONS The physician‑ pharmacist‑patient tripartite evaluation system constructed in this study is scientific and reliable. Empirical investigation confirms that the basic pharmaceutical support services of the medical groups are well established, whereas the development of high‑level collaborative services has notable weaknesses, and marked heterogeneity exists in service perception among the three groups.
2.Sishenwan Restores Intestinal Barrier in Rat Model of Diarrhea-predominant Irritable Bowel Syndrome Due to Spleen-kidney Yang Deficiency by Regulating Intestinal Flora and Short-chain Fatty Acids
Qian ZHANG ; Siqi LI ; HUYUNLIAN ; Na WEN ; Chaoqun HUANG ; Binbin LIU ; Chengxia SU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(21):80-89
ObjectiveTo investigate the effect and mechanism of Sishenwan in restoring the intestinal barrier function in the rat model of diarrhea-predominant irritable bowel syndrome (IBS-D) due to spleen-kidney Yang deficiency based on intestinal flora and short-chain fatty acids. MethodsAfter the delivery of 10 SPF-grade pregnant rats, 4 male suckling rats were kept in each litter for the experiment. The male suckling rats were randomly allocated into blank, model, low-dose (3.51 g·kg-1) Sishenwan, high-dose (7.02 g·kg-1) Sishenwan, and Peifeikang (0.54 g·kg-1) groups, with 8 rats in each group. The blank group was fed conventionally, and the other groups were subjected to mother-child separation and Sennae Folium gavage (1 g·mL-1, 10 mL·kg-1) for the modeling of IBS-D due to spleen-kidney Yang deficiency. After the modeling was completed, the rats in Sishenwan groups were administrated with the corresponding dose of Sishenwan decoction by gavage, and the Peifeikang group with bifidobacterium triple live powder+normal saline suspension. The blank and model groups were treated with an equal volume of normal saline by gavage. The general conditions and fecal characteristics of rats were observed. After 2 weeks of administration, the rats were anesthetized for sample collection. The pathological changes of the colon tissue in rats were observed by hematoxylin-eosin staining. Enzyme-linked immunosorbent assay was employed to measure the levels of transforming growth factor-beta (TGF-β), interleukin-10 (IL-10), and interleukin-22 (IL-22). Immumohistochemical staining (IHC) was performed to detect the positive expression of zonula occludens-1 (ZO-1) and occludin in the colon tissue. Western blot was employed to determine the protein levels of ZO-1 and occludin in the colon tissue of rats, and 16S rRNA gene sequencing was performed for intestinal flora. Gas chromatography-mass spectrometry was employed to determine the content of short-chain fatty acids (SCFAs) in the cecum contents of rats. ResultsThe colon tissue in the blank group presented a clear structure, neat glands, and no inflammatory cell infiltration. In the model group, the colon tissue showcased a disorganized structure, irregular arrangement of glands, and inflammatory cell infiltration. Compared with the model group, the low-dose and high-dose Sishenwan groups and the Peifeikang group exhibited an intact colon tissue structure, regular arrangement of glands, and reduced inflammatory cell infiltration. Compared with the blank group, the modeling lowered the levels of TGF-β, IL-10, and IL-22 in the serum (P<0.01), down-regulated the protein levels of ZO-1 and occludin in the colon tissue (P<0.01), and decreased the content of acetic acid and propionic acid and increased the content of butyric acid in cecum contents (P<0.05). Compared with the model group, low-dose and high-dose Sishenwan raised the levels of TGF-β, IL-10, and IL-22 in the serum (P<0.05, P<0.01), and Peifeikang elevated the levels of TGF-β and IL-10 in the serum (P<0.01). High-dose Sishenwan and Peifeikang up-regulated the protein levels of ZO-1 and occludin (P<0.05, P<0.01), increased the content of acetic acid and propionic acid in cecum contents (P<0.05), and decreased the content of butyric acid (P<0.05). The 16S rRNA gene sequencing results showed that the intestinal flora structure of the model group changed compared with that of the blank group. Compared with the model group, Sishenwan and Peifeikang increased the relative abundance of Lachnospiraceae, Muribaculaceae, Akkermansiaceae, Ligilactobacillus, UBA3282, Akkermansia, and Corynebacterium while reducing the relative abundance of Oscillospiraceae, Desulfovibrionaceae, Lactobacillus, Romboutsia, and Desulfovibrio. They can restore the intestinal flora structure similar to that in the blank group. ConclusionSishenwan can alleviate diarrhea symptoms and colonic mucosal inflammation, increase the expression of tight junction proteins in the colonic mucosa, and strengthen the intestinal barrier in IBS-D rats with the syndrome of spleen-kidney Yang deficiency. The mechanism of action may be related to optimizing the structure and balance of intestinal flora and regulating the SCFAs, and the effect of high-dose Sishenwan is obvious.
3.Sishenwan Restores Intestinal Barrier in Rat Model of Diarrhea-predominant Irritable Bowel Syndrome Due to Spleen-kidney Yang Deficiency by Regulating Intestinal Flora and Short-chain Fatty Acids
Qian ZHANG ; Siqi LI ; HUYUNLIAN ; Na WEN ; Chaoqun HUANG ; Binbin LIU ; Chengxia SU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(21):80-89
ObjectiveTo investigate the effect and mechanism of Sishenwan in restoring the intestinal barrier function in the rat model of diarrhea-predominant irritable bowel syndrome (IBS-D) due to spleen-kidney Yang deficiency based on intestinal flora and short-chain fatty acids. MethodsAfter the delivery of 10 SPF-grade pregnant rats, 4 male suckling rats were kept in each litter for the experiment. The male suckling rats were randomly allocated into blank, model, low-dose (3.51 g·kg-1) Sishenwan, high-dose (7.02 g·kg-1) Sishenwan, and Peifeikang (0.54 g·kg-1) groups, with 8 rats in each group. The blank group was fed conventionally, and the other groups were subjected to mother-child separation and Sennae Folium gavage (1 g·mL-1, 10 mL·kg-1) for the modeling of IBS-D due to spleen-kidney Yang deficiency. After the modeling was completed, the rats in Sishenwan groups were administrated with the corresponding dose of Sishenwan decoction by gavage, and the Peifeikang group with bifidobacterium triple live powder+normal saline suspension. The blank and model groups were treated with an equal volume of normal saline by gavage. The general conditions and fecal characteristics of rats were observed. After 2 weeks of administration, the rats were anesthetized for sample collection. The pathological changes of the colon tissue in rats were observed by hematoxylin-eosin staining. Enzyme-linked immunosorbent assay was employed to measure the levels of transforming growth factor-beta (TGF-β), interleukin-10 (IL-10), and interleukin-22 (IL-22). Immumohistochemical staining (IHC) was performed to detect the positive expression of zonula occludens-1 (ZO-1) and occludin in the colon tissue. Western blot was employed to determine the protein levels of ZO-1 and occludin in the colon tissue of rats, and 16S rRNA gene sequencing was performed for intestinal flora. Gas chromatography-mass spectrometry was employed to determine the content of short-chain fatty acids (SCFAs) in the cecum contents of rats. ResultsThe colon tissue in the blank group presented a clear structure, neat glands, and no inflammatory cell infiltration. In the model group, the colon tissue showcased a disorganized structure, irregular arrangement of glands, and inflammatory cell infiltration. Compared with the model group, the low-dose and high-dose Sishenwan groups and the Peifeikang group exhibited an intact colon tissue structure, regular arrangement of glands, and reduced inflammatory cell infiltration. Compared with the blank group, the modeling lowered the levels of TGF-β, IL-10, and IL-22 in the serum (P<0.01), down-regulated the protein levels of ZO-1 and occludin in the colon tissue (P<0.01), and decreased the content of acetic acid and propionic acid and increased the content of butyric acid in cecum contents (P<0.05). Compared with the model group, low-dose and high-dose Sishenwan raised the levels of TGF-β, IL-10, and IL-22 in the serum (P<0.05, P<0.01), and Peifeikang elevated the levels of TGF-β and IL-10 in the serum (P<0.01). High-dose Sishenwan and Peifeikang up-regulated the protein levels of ZO-1 and occludin (P<0.05, P<0.01), increased the content of acetic acid and propionic acid in cecum contents (P<0.05), and decreased the content of butyric acid (P<0.05). The 16S rRNA gene sequencing results showed that the intestinal flora structure of the model group changed compared with that of the blank group. Compared with the model group, Sishenwan and Peifeikang increased the relative abundance of Lachnospiraceae, Muribaculaceae, Akkermansiaceae, Ligilactobacillus, UBA3282, Akkermansia, and Corynebacterium while reducing the relative abundance of Oscillospiraceae, Desulfovibrionaceae, Lactobacillus, Romboutsia, and Desulfovibrio. They can restore the intestinal flora structure similar to that in the blank group. ConclusionSishenwan can alleviate diarrhea symptoms and colonic mucosal inflammation, increase the expression of tight junction proteins in the colonic mucosa, and strengthen the intestinal barrier in IBS-D rats with the syndrome of spleen-kidney Yang deficiency. The mechanism of action may be related to optimizing the structure and balance of intestinal flora and regulating the SCFAs, and the effect of high-dose Sishenwan is obvious.
4.Genomic Analysis of Cellular Senescence and Osteoporosis Target Genes and Small Molecule Screening
Dan MA ; Yajuan ZHANG ; Binbin MA ; Qiaoning YUE ; Jianping LIU
Journal of Kunming Medical University 2025;46(2):141-150
Objective To explore common target genes related to aging and osteoporosis using data from public databases and to screen for small molecule compounds with potential therapeutic effects.Methods Osteoporosis datasets GSE56814 and GSE56815 were downloaded and merged from the public gene expression database(Gene Expression Omnibus(GEO)).Senescent genes were selected and merged from the genecard database and the cell age database.Data cleaning and differential gene selection were performed using R software,and a volcano plot was created.Weighted gene co-expression network analysis was performed to screen out key modules and genes,and the machine learning methods were employed to screen target genes.A Venn diagram was drawn using the the Microbioinformatics platform,and cytoscape software was used to visualise protein interactions results.Interaction analysis of differentially encoded proteins was carried out using the STRING database,and prediction of small molecule compounds was carried out using Cmap database.Finally,Receiver operating characteristic(ROC)curves were plotted to find out the most meaningful target genes,followed by the establishment of a logistic regression model and the creation of a nomogram.Results A total of 127 differential genes were screened using the limma package.Weighted gene co-expression network analysis was performed on the differential genes and 103 highly expressed genes were screened.Three machine learning methods,lasso regression,support vector machine and random forest model,were used to finally obtain four target genes:FOXO3,HIRA,CBX5 and RAD1.The nomogram and calibration curves showed good predictive results.Five small molecule compounds with potential therapeutic effects were identified using the Cmap database:sakuraflavin(O-methylated isoflavone),XMD-885,kangaroo hyoscyamine,everolimus and XMD-1150.Conclusion FOXO3 and HIRA genes have now been confirmed to be the common target genes for aging and osteoporosis,and sakuraflavin has potential therapeutic effects on both conditions.
5.Exploring the correlation between motor function and cognitive function, emotion and sleep in the Chinese community older adults
Yueying LIU ; Xinxin MA ; Yu DU ; Jingjing DUAN ; Jianhong XIAO ; Jian LIN ; Xiongang HUANG ; Chao LIU ; Binbin WANG ; Wujun CHEN ; Ting DENG ; Tao CHEN ; Wen SU
Chinese Journal of Geriatrics 2025;44(1):60-67
Objective:To apply the Timed Up and Go Test(TUGT)to investigate the correlation between motor function, emotional state, cognitive function, and sleep quality among elderly individuals in the Chinese community.Methods:A cross-sectional study was conducted, involving 739 subjects aged 60 to 90 years, who were randomly recruited from December 2021 to August 2023 across Beijing, Tianjin, Zhejiang, Guangdong, and Hainan Provinces in China.Basic demographic information was collected, and the TUGT was utilized to assess motor function.Based on the TUGT time(t), the subjects were divided into three groups: normal motor function group, mild motor abnormality group, and significant motor abnormality group.Cognitive function was evaluated using the Chinese Revised Mini-Mental State Examination(MMSE), while the Patient Health Questionnaire Depression Scale(PHQ-9)was employed to measure the degree of depression.Additionally, the Epworth Sleepiness Scale(ESS)was used to assess excessive daytime sleepiness.The correlation between subjects' motor function and their cognitive abilities, mood, and sleep was subsequently analyzed.Results:Systolic blood pressure, heart rate, PHQ-9, MMSE, and ESS scores were identified as significant factors influencing TUGT time.Specifically, TUGT time was positively correlated with PHQ-9 and ESS scores, while exhibiting negative correlations with systolic blood pressure, heart rate, and MMSE scores.Additionally, TUGT time was negatively correlated with the MMSE subcomponents of orientation, immediate memory, and verbal ability.All observed differences were statistically significant(all P<0.05).Logistic regression analysis indicated that an increase in the PHQ-9 score was associated with an odds ratio( OR)of 1.099(95% CI: 1.045-1.155, P<0.001)(mild motor abnormality group)and 1.150(95% CI: 1.066-1.242, P<0.001)(Significant motor abnormality group).Additionally, a reduction in the MMSE score was observed, with an OR of 0.939(95% CI: 0.886-0.995, P<0.001)(mild motor abnormality group)and 0.793(95% CI: 0.729-0.862, P<0.001)(Significant motor abnormality group).Furthermore, an increase in the ESS score was noted, with ORs of 1.139(95% CI: 1.094-1.186, P<0.001)(mild motor abnormality group)and 1.203(95% CI: 1.132-1.279, P<0.001)(Significant motor abnormality group).These findings suggest that these variables are independently related to decreased motor function. Conclusions:Depression, cognitive impairment, and excessive daytime sleepiness are independent risk factors for motor dysfunction among elderly individuals in community settings.The Timed Up and Go Test TUGT can be utilized for the early screening of motor function decline in this population.
6.Effect of red laser and plasma transurethral enucleation of prostate on urinary function and sexual function in patients with benign prostatic hyperplasia under 65 years old
Binbin ZHANG ; Lingling DU ; Hongxiong SONG ; Yantao DANG ; Wenshuai YAN ; Jixue GAO ; Feng WANG ; Lijun MA ; Longqiang LIU
Clinical Medicine of China 2025;41(6):465-470
Objective:To investigate the effects of red laser versus plasma transurethral enucleation of the prostate (TUEP) on urinary and sexual function in patients under 65 years of age with benign prostatic hyperplasia (BPH).Method:This study was a retrospective analysis. Eighty BPH patients under 65 years old, admitted to the Affiliated Hospital of Yan'an University between January 2020 and January 2023 were selected. Among them, 40 patients who underwent 980 nm semiconductor red laser TUERP with pre-resection of the urethral mucosa 1 cm proximal to the verumontanum at the prostatic apex and preservation of bladder neck integrity were assigned to the Red Laser Group. Another 40 patients who underwent conventional TURP with a plasma resectoscope were assigned to the Plasma Group. Clinical data and 6-month postoperative follow-up data were collected. Changes in the International Prostate Symptom Score (IPSS), maximum urinary flow rate (Qmax), International Index of Erectile Function-5 (IIEF-5) score, ejaculatory function score, and ejaculatory discomfort score before and after surgery were compared between the two groups. The incidence rates of decreased semen volume, retrograde ejaculation, and painful ejaculation at 6 months postoperatively were also compared.Results:At 6 months postoperatively, IPSS decreased in both groups compared to preoperative levels and was lower in the Red Laser Group than in the Plasma Group [(4.7±1.3) points vs. (6.3±2.2) points, t=-4.46, P<0.001]. Qmax increased in both groups compared to preoperative levels and was higher in the Red Laser Group than in the Plasma Group [(25.7±1.3) ml/s vs. (22.6±1.2) ml/s, t=10.76, P<0.001]. The ejaculatory function score in the Plasma Group was lower than its own preoperative level [(5.9±0.7) points vs. (11.1±1.6) points, t=5.33, P<0.001] and lower than that in the Red Laser Group [(5.9±0.7) points vs. (11.4±0.9) points, t=7.56, P<0.001]. The ejaculatory discomfort score in the Plasma Group was higher than its own preoperative level [(3.0±1.5) points vs. (0.8±0.6) points, t=4.26, P<0.001] and higher than that in the Red Laser Group [(3.0±1.5) points vs. (0.8±0.6) points, t=5.83, P<0.001]. The incidence rates of decreased semen volume and retrograde ejaculation in the Red Laser Group were lower than those in the Plasma Group [12.5% (5/40) vs. 50.0% (20/40), 10.0% (4/40) vs. 45.0% (18/40), χ2=15.84, 12.65, respectively, both P<0.001]. Conclusions:Using 980 nm semiconductor red laser TUERP with pre-resection of the urethral mucosa 1 cm proximal to the verumontanum and preservation of bladder neck integrity can improve urinary and sexual function in BPH patients under 65 years of age.
7.Expression and role of Tim-3 in the pathogenesis of experimental autoimmune uveitis
Xiongfei WU ; Qiujin ZHANG ; Liu ZHENG ; Binbin YANG ; Jinqing LI ; Zhixiang DING
Recent Advances in Ophthalmology 2025;45(1):10-14
Objective To investigate the expression and role of T cell immunoglobulin and mucin domain-containing protein 3(Tim-3)in the pathogenesis of experimental autoimmune uveitis(EAU).Methods A total of 12 male C57BL/6J mice,aged 4 to 5 weeks,were selected and divided into the control group(n=3)and the experimental group(n=9)using a random number table.The control group(modeling time point:0 days after modeling)received no treatment,while the experimental group was induced to establish an EAU model(divided into three subgroups according to the modeling time points:7 days,14 days,and 21 days after modeling,with 3 mice in each subgroup).Firstly,the interphotoreceptor retinoid-binding protein 651-670 and complete Freund's adjuvant were fully mixed and emulsified.Then,the emulsion was subcutaneously injected into the two thighs,tail base,and neck of mice in the experimental group(each mouse received 200 μL of immune emulsion containing 500 pg of interphotoreceptor retinoid-binding protein 651-670).Subsequently,each mouse in the experimental group was also intraperitoneally injected with 1 μg of pertussis toxin.The anterior segment and fundus of mice in each group were observed and photographed under a slit-lamp microscope.The clinical and histopatho-logical scoring of these mice was conducted according to the Caspi grading scale based on the severity of inflammation.The serum levels of IFN-γ and IL-17 were measured using the enzyme-linked immunosorbent assay(ELISA),while the mRNA expression of Tim-3 in the spleen and ocular tissues was detected using the real-time quantitative polymerase chain reaction(RT-qPCR).Western blot was employed to detect the protein expression of Tim-3,and immunohistochemistry was used to examine the protein expression of Tim-3 in the spleen tissue.Statistical analysis was performed using GraphPad Prism 9.0.Results The clinical scores of the anterior segment,fundus,and histopathology of the mice increased over time after modeling,with statistically significant differences among these groups(P<0.05).The serum levels of IFN-γ and IL-17 in the mice also increased over time after modeling,with statistically significant differences among these groups(P<0.05).The relative mRNA expression of Tim-3 in the spleen and ocular tissues of the mice decreased over time after modeling,with statistically significant differences among these groups(P<0.05).The protein expression of Tim-3 in the ocular and spleen tissues showed the same pattern as its mRNA expression.Conclusion The expression of Tim-3 decreases with the exacerbation of inflammation in the progression of EAU,suggesting that Tim-3 may play a negative immunoregulatory role in the development of uveitis.
8.Development and implementation of a comprehensive process guidance service applet of the multi-campus hospitals
Binbin SONG ; Jun LIN ; Lei FENG ; Ying WANG ; Zhehao LIU ; Xiaoyun FENG ; Jing YANG ; Qinfen GUO ; Bingling ZHANG
Modern Hospital 2025;25(2):278-281
To address the challenges associated with traditional medical treatment modalities that hinder the efficiency of healthcare delivery,and to facilitate the sharing of medical service information across multiple campuses via mobile platforms,the First Affiliated Hospital to Zhejiang University School of Medicine has proactively leveraged digital intelligence to innovate its medical service model.This program involved the development of a comprehensive process guidance service applet on the Alipay platform specifically for outpatient services.The applet offers intelligent support services,standardizes electronic authentication processes,coordinates medical resources across various hospital locations,and establishes an integrated service delivery system that seamlessly combines online and offline interactions.This approach has optimized the outpatient treatment process,enhanced the patient experience,and fostered standardized management of medical services across multiple campuses.
9.Preliminary analysis of mRNA m7G modifications in human Adenocarcinoma of esophagogastric junction
Ziyan LIU ; Xiaoyan WANG ; Binbin HU ; Shiqi ZHANG ; Yakun LANG ; Yu FAN
Chinese Journal of Medical Genetics 2025;42(2):187-197
Objective:To explore the potential role of mRNA m7G modification in the pathogenesis of human adenocarcinoma of esophagogastric junction (AEG).Methods:Pathological tissue specimens from four AEG patients who underwent surgical treatment at the People′s Hospital Affiliated to Jiangsu University between 2018 and 2019 were selected. Tumor tissues and adjacent normal tissues were collected from these patients. RNA was extracted from both tissue types and subjected to m7G methylated RNA immunoprecipitation sequencing (m7G-MeRIP-seq) to analyze the patterns of m7G modification, the characteristics of differential m7G modification sites, the differentially expressed mRNA, and the correlation between m7G modification and mRNA expression levels. Differential m7G-modified genes ( MSH6, BRCA1, and SOX9) were further validated using methylated RNA immunoprecipitation quantitative PCR (MeRIP-qPCR), while the expression of METTL1 and WDR4 genes was examined by real-time quantitative PCR (RT-qPCR). This study was approved by the Medical Ethics Committee of the People′s Hospital Affiliated to Jiangsu University (Ethics No. 20150083). Results:① m7G-MeRIP-seq analysis revealed that m7G modifications in both AEG and adjacent normal tissues were predominantly located in the GC-rich region surrounding the internal start codon of mRNA. Differential m7G modification sites between the two groups were closely associated with cancer-related genes. ② mRNA library analysis showed that differentially expressed mRNA were predominantly upregulated in AEG tissues and downregulated in adjacent normal tissues. ③ Cross-analysis indicated that genes with hypermethylation tended to exhibit upregulated expression, while genes with hypomethylation were typically downregulated in AEG tissues. ④ MeRIP-qPCR validation confirmed that the mRNA expression of MSH6, BRCA1, and SOX9 were significantly upregulated in AEG tissues compared to adjacent normal tissues (AEG vs. normal, P<0.05). ⑤ RT-qPCR results demonstrated that the mRNA expression levels of METTL1 and WDR4 were also upregulated in AEG tissues (AEG vs. normal, P<0.000 5). Conclusion:These findings suggest that mRNA m7G modification plays a significant role in the development of AEG. Furthermore, proteins as METTL1 and WDR4 may facilitate AEG progression by regulating mRNA m7G modification. These results provide valuable insights into the molecular mechanisms underlying AEG and may inform future therapeutic strategies for this malignancy.
10.Preliminary analysis of mRNA m7G modifications in human Adenocarcinoma of esophagogastric junction.
Ziyan LIU ; Xiaoyan WANG ; Binbin HU ; Shiqi ZHANG ; Yakun LANG ; Yu FAN
Chinese Journal of Medical Genetics 2025;42(2):187-197
OBJECTIVE:
To explore the potential role of mRNA m7G modification in the pathogenesis of human adenocarcinoma of esophagogastric junction (AEG).
METHODS:
Pathological tissue specimens from four AEG patients who underwent surgical treatment at the People's Hospital Affiliated to Jiangsu University between 2018 and 2019 were selected. Tumor tissues and adjacent normal tissues were collected from these patients. RNA was extracted from both tissue types and subjected to m7G methylated RNA immunoprecipitation sequencing (m7G-MeRIP-seq) to analyze the patterns of m7G modification, the characteristics of differential m7G modification sites, the differentially expressed mRNA, and the correlation between m7G modification and mRNA expression levels. Differential m7G-modified genes (MSH6, BRCA1, and SOX9) were further validated using methylated RNA immunoprecipitation quantitative PCR (MeRIP-qPCR), while the expression of METTL1 and WDR4 genes was examined by real-time quantitative PCR (RT-qPCR). This study was approved by the Medical Ethics Committee of the People's Hospital Affiliated to Jiangsu University (Ethics No. 20150083).
RESULTS:
m7G-MeRIP-seq analysis revealed that m7G modifications in both AEG and adjacent normal tissues were predominantly located in the GC-rich region surrounding the internal start codon of mRNA. Differential m7G modification sites between the two groups were closely associated with cancer-related genes. mRNA library analysis showed that differentially expressed mRNA were predominantly upregulated in AEG tissues and downregulated in adjacent normal tissues. Cross-analysis indicated that genes with hypermethylation tended to exhibit upregulated expression, while genes with hypomethylation were typically downregulated in AEG tissues. MeRIP-qPCR validation confirmed that the mRNA expression of MSH6, BRCA1, and SOX9 were significantly upregulated in AEG tissues compared to adjacent normal tissues (AEG vs. normal, P < 0.05). RT-qPCR results demonstrated that the mRNA expression levels of METTL1 and WDR4 were also upregulated in AEG tissues (AEG vs. normal, P < 0.000 5).
CONCLUSION
These findings suggest that mRNA m7G modification plays a significant role in the development of AEG. Furthermore, proteins as METTL1 and WDR4 may facilitate AEG progression by regulating mRNA m7G modification. These results provide valuable insights into the molecular mechanisms underlying AEG and may inform future therapeutic strategies for this malignancy.
Humans
;
RNA, Messenger/metabolism*
;
Adenocarcinoma/pathology*
;
Esophagogastric Junction/metabolism*
;
Esophageal Neoplasms/metabolism*
;
Gene Expression Regulation, Neoplastic
;
Female
;
Male
;
Middle Aged
;
DNA Methylation
;
Methyltransferases/metabolism*
;
Stomach Neoplasms/genetics*

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