1.Study on mechanism of the effective substance groups from Artemisia ordosica in ameliorating rheumatoid arthritis
HUGEJILE ; Qinghu WANG ; Xiaofeng ZHANG ; Xiurong KANG ; Yingchun BAI ; LIHURICHA ; Mingxia GAO
China Pharmacy 2025;36(13):1604-1609
OBJECTIVE To investigate the ameliorating effect and mechanism of the effective substance groups from Artemisia ordosica(Abbreviated as HSH) on rheumatoid arthritis (RA) based on cluster of differentiation 4/lymphocyte cell-specific protein- tyrosine kinase/zeta-chain-associated protein kinase of 70 kDa/interleukin-17(CD4/LCK/ZAP70/IL-17) signaling pathway. METHODS The rats were divided into normal group, model group, HSH low-dose, medium-dose and high-dose groups (2.7, 10.8, 21.6 mg/kg) and positive control group (Tripterygium glycosides tablet, 6.3 mg/kg), with 10 rats in each group. Except for normal group, RA rat model was induced by complete Freund’s adjuvant in other groups. After modeling, each group was given relevant medicine or normal saline intragastrically, once a day, for 28 consecutive days. The changes in ankle joint swelling and arthritis index in rats were determined; the pathological changes of ankle joint tissue were observed; the levels of inflammatory factors [IL-1β, IL-21, IL-17A, IL-2, interferon-γ (IFN-γ) and IL-6] in serum and joint fluid of rats were determined; the levels of Th1, Th17 and Treg cells in the whole blood and spleen of rats were detected; protein and mRNA expressions of LCK, proto-oncogene tyrosine-protein kinase Fyn (Fyn), ZAP70, CD45, RAR-related orphan receptor γt (RORγt), and forkhead box protein 3 (Foxp3) in ankle synovial tissue were determined. RESULTS Compared with normal group, the changes in ankle joint swelling, arthritis index, the levels of IL-1β, IL-21, IL-17A, IL-2, IFN-γ and IL-6 in serum and joint fluid, the levels of Th1, Th17 cells and Th17/Treg value in whole blood and spleen, and the protein and mRNA expression levels of LCK, Fyn, ZAP70, CD45, and RORγt in ankle joint synovium were all significantly increased/elevated (P<0.05). The level of Treg cells in the spleen, as well as the protein and mRNA expression levels of Foxp3 in the ankle joint synovium were significantly decreased (P<0.05). Compared with model group, most of the above-mentioned indicators were significantly reversed in the positive control group and all dose groups of HSH (P<0.05). The degree of pathological changes in ankle joint tissues was markedly improved, and inflammation was alleviated. CONCLUSIONS HSH can regulate the cascade reactions in the CD4/LCK/ZAP70/IL-17 pathway within the T-cell receptor signaling pathway, thereby modulating the Th17/Treg balance. This leads to the suppression of inflammatory responses and the alleviation of synovial tissue damage in rats with RA.
2.Application of Gas Chromatography Ion Mobility Spectrometry Technology Combined with Chemometric Methods in Identification of Foeniculi Fructus from Haiyuan Region
Xiurong TIAN ; Hao WANG ; Kejing PANG ; Penglong YU ; Xia LIU ; Mengyue SHEN ; Xianglin JIANG ; Yonghua LI ; Zhihong LI ; Hongqiong DING ; Qin YANG ; Xingying LI ; Qian XIONG ; Guochao WAN ; Yuexiang MA ; Zhenping LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(17):184-192
ObjectiveTo establish a geographical origin identification model for Foeniculi Fructus from Haiyuan, providing a new technical reference for the protection of Haiyuan's geo-authentic medicinal materials and its designation as a national geographical indication agricultural product. MethodsSamples of Foeniculi Fructus were collected from eight producing areas, including Minqin (Gansu), Bozhou (Anhui), Qingdao (Shandong), Dezhou (Shandong), Urumqi (Xinjiang), Nujiang (Yunnan), Gutuo (Inner Mongolia), and Haiyuan (Ningxia). Gas chromatography-ion mobility spectrometry (GC-IMS) was used to detect the volatile organic compounds (VOCs) in samples from these geographic origins. VOCs were qualitatively analyzed through dual matching with the National Institute of Standards and Technology (NIST) mass spectral database and the IMS drift time database. Using the Reporter module and Gallery Plot visualization tools within the LAV analytical platform, VOC fingerprint profiles characterizing geographic origins were constructed. A non-targeted analytical strategy was adopted, and 97 VOCs detected via GC-IMS were subjected to principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) based on their differential distribution patterns to construct an origin identification model for Foeniculi Fructus from Haiyuan region. Key discriminative markers were screened using variable importance in projection (VIP) values greater than 1. ResultsA total of 97 VOCs were identified, including alcohols, aldehydes, ketones, esters, organic acids, terpenoids, ethers, alkenes, and benzenes. The PLS-DA model, based on VOCs data obtained by GC-IMS, effectively distinguished Foeniculi Fructus in Haiyuan region from those of other origins. During cross-validation, the model achieved a prediction parameter (Q2) of 0.976 and a goodness-of-fit parameter (R2) of 0.936, with no overfitting observed in permutation testing. Twelve key flavor markers with VIP > 1 were identified as characteristic indicators of Haiyuan origin. ConclusionA stable and highly predictive origin identification model for Foeniculi Fructus from Haiyuan was successfully established using GC-IMS technology, PLS-DA, and VIP-based marker screening. This model provides a novel technical strategy for accurately distinguishing Foeniculi Fructus in Haiyuan region from other regional varieties and offers new technical support for its protection as a geo-authentic medicinal material and a nationally designated geographical indication agricultural product in China.
3.Application of Gas Chromatography Ion Mobility Spectrometry Technology Combined with Chemometric Methods in Identification of Foeniculi Fructus from Haiyuan Region
Xiurong TIAN ; Hao WANG ; Kejing PANG ; Penglong YU ; Xia LIU ; Mengyue SHEN ; Xianglin JIANG ; Yonghua LI ; Zhihong LI ; Hongqiong DING ; Qin YANG ; Xingying LI ; Qian XIONG ; Guochao WAN ; Yuexiang MA ; Zhenping LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(17):184-192
ObjectiveTo establish a geographical origin identification model for Foeniculi Fructus from Haiyuan, providing a new technical reference for the protection of Haiyuan's geo-authentic medicinal materials and its designation as a national geographical indication agricultural product. MethodsSamples of Foeniculi Fructus were collected from eight producing areas, including Minqin (Gansu), Bozhou (Anhui), Qingdao (Shandong), Dezhou (Shandong), Urumqi (Xinjiang), Nujiang (Yunnan), Gutuo (Inner Mongolia), and Haiyuan (Ningxia). Gas chromatography-ion mobility spectrometry (GC-IMS) was used to detect the volatile organic compounds (VOCs) in samples from these geographic origins. VOCs were qualitatively analyzed through dual matching with the National Institute of Standards and Technology (NIST) mass spectral database and the IMS drift time database. Using the Reporter module and Gallery Plot visualization tools within the LAV analytical platform, VOC fingerprint profiles characterizing geographic origins were constructed. A non-targeted analytical strategy was adopted, and 97 VOCs detected via GC-IMS were subjected to principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) based on their differential distribution patterns to construct an origin identification model for Foeniculi Fructus from Haiyuan region. Key discriminative markers were screened using variable importance in projection (VIP) values greater than 1. ResultsA total of 97 VOCs were identified, including alcohols, aldehydes, ketones, esters, organic acids, terpenoids, ethers, alkenes, and benzenes. The PLS-DA model, based on VOCs data obtained by GC-IMS, effectively distinguished Foeniculi Fructus in Haiyuan region from those of other origins. During cross-validation, the model achieved a prediction parameter (Q2) of 0.976 and a goodness-of-fit parameter (R2) of 0.936, with no overfitting observed in permutation testing. Twelve key flavor markers with VIP > 1 were identified as characteristic indicators of Haiyuan origin. ConclusionA stable and highly predictive origin identification model for Foeniculi Fructus from Haiyuan was successfully established using GC-IMS technology, PLS-DA, and VIP-based marker screening. This model provides a novel technical strategy for accurately distinguishing Foeniculi Fructus in Haiyuan region from other regional varieties and offers new technical support for its protection as a geo-authentic medicinal material and a nationally designated geographical indication agricultural product in China.
4.HPV16 E6 mediates oncogenic transformation of cervical epithelial cells by downregulating DHRS2 expression
Xiurong DU ; Muheng TAO ; Yongqin JIA ; Tingting WU ; Kaijian LING ; Yanzhou WANG ; Zhiqing LIANG
Journal of Army Medical University 2024;46(7):715-724
Objective To explore the effects of HPV16 E6 on genes and signaling pathways in cervical epithelial cells and to screen genes associated with oncogenic transformation.Methods HUCEC models infected with HPV16 E6 were constructed,and transcriptome sequencing was performed to screen for differentially expressed genes(DEGs),which were subjected to Gene Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)enrichment to analyze the differential signaling pathways.RT-qPCR was used to validate major differentially down-regulated expressed genes.After predicting the major differentially expressed proteins by molecular docking analysis,the expression of major differential genes in HUCEC cell model was verified by RT-qPCR and Western blotting.In addition,RT-qPCR and Western blotting were used to further verify the expression of major differential genes in cervical cancer cell lines,SiHa and CaSki.Results A total of 55 genes with more than two-fold differential expression were screened.The results centering on down-regulated genes showed that the negatively regulated differential gene was mainly enriched in redox processes;KEGG enrichment analysis revealed that it was mainly associated with carbohydrate metabolism and cancer.RT-qPCR results showed that the down-regulated differential expression trends of the selected 10 genes were basically consistent with the sequencing results.Molecular docking analysis predicted an interaction between DHRS2 and HPV16 E6,and RT-qPCR and Western blotting confirmed that HPV16 E6 down-regulated DHRS2 mRNA(P<0.01)and protein(P<0.05)and ETV5 protein expression(P<0.01).In SiHa and CaSki cells,compared with the control group,the mRNA and protein expression of DHRS2 was downregulated and positively correlated with the trend of P53 protein expression(P<0.05).Conclusion HPV16 E6 can mediate oncogenic transformation of cervical cells and promote cervical carcinogenesis through downregulating DHRS2 expression.
5.Anticancer Mechanism of Hesperidin and Its Derivatives: A Review
Xiurong TIAN ; Hao WANG ; Penglong YU ; Shimeng LYU ; Yonghua LI ; Xianglin JIANG ; Qin YANG ; Wubin LYU ; Xia LIU ; Yuexiang MA
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(13):259-270
This article reviews relevant literature on the prevention and treatment of cancer with hesperidin published in the past 10 years by searching electronic databases such as China National Knowledge Infrastructure(CNKI), Wanfang, and PubMed, and summarizes the research progress on the anticancer mechanism of hesperidin. Hesperidin has a wide range of pharmacological effects, including anti-inflammatory, antioxidant, antibacterial, antiviral, anticancer, immune-regulatory, anti-radiation, neuroprotective and cardiovascular protective properties and so on. Its anticancer mechanisms mainly include inhibiting cancer cell proliferation, promoting apoptosis, reducing angiogenesis, inhibiting invasion and migration of cancer cells, regulating immunity and autophagy, and exerting antioxidant and anti-inflammatory effects. As a broad-spectrum anticancer drug, hesperidin manifests chemo-preventive and therapeutic effects across various cancers, contingent upon its multifaceted anticancer mechanisms. Furthermore, this article summarizes the synergistic effects of hesperidin in combination with cisplatin, doxorubicin, cyclophosphamide and paclitaxel. It elucidates that hesperidin can enhance the cytotoxicity of these anticancer drugs against cancer cells while mitigating drug resistance and adverse side effects. Nonetheless, the clinical use is somewhat constrained due to its poor water solubility and limited bioavailability. Therefore, this article also outlines the current strategies for enhancing hesperidin's bioavailability, including structural modification, combination with other chemical substances, and utilization of nano drug carriers.The discovery of derivatives of hesperidin not only preserves the anticancer efficacy of hesperidin, but also effectively overcomes the shortcomings of poor water solubility and low bioavailability of hesperidin, effectively predicting the good application prospects of hesperidin and its derivatives.
6.Effect of Tiaodu Tongmai acupuncture therapy on rheumatoid arthritis at different ages by generalized estimating equation
Xiurong ZHANG ; Xinmei CUI ; Haiyan ZHAO ; Jin DAI ; Jiaxin FU ; Bo WANG
Chinese Journal of Tissue Engineering Research 2024;28(35):5584-5590
BACKGROUND:Rheumatoid arthritis is a chronic autoimmune disease characterized by joint pain,swelling,and dysfunction.Acupuncture,as a traditional medical treatment,has proved its effectiveness and safety in many diseases.However,the efficacy of acupuncture in the treatment of rheumatoid arthritis remains controversial.Therefore,the purpose of this study is to evaluate and explore the effect of Tiaodu Tongmai acupuncture in the treatment of preclinical rheumatoid arthritis of different ages through the generalized estimating equation,and to provide a basis for the application of acupuncture in rheumatoid arthritis. OBJECTIVE:To investigate the effect of Tiaodu Tongmai acupuncture therapy on preclinical rheumatoid arthritis(pre-RA)patients at different ages based on generalized estimating equation. METHODS:A total of 123 patients with preclinical rheumatoid arthritis treated from January to September 2023 were selected as the study objects and divided into study group(n=64)and control group(n=59)according to different treatment methods.The study group was given Tiaodu Tongmai acupuncture treatment,and the control group was given acetaminophen tablets.The baseline balance was adjusted by propensity score matching method.The clinical efficacy and cytokine levels before and after treatment between the two groups were compared.The generalized estimating equation model was established to evaluate the efficacy of Tiaodu Tongmai acupuncture therapy on preclinical rheumatoid arthritis patients at different ages. RESULTS AND CONCLUSION:(1)After 0 days of treatment,there were significant differences in joint pain and C-reactive protein expression between study and control groups(P<0.05).After 4 weeks of treatment,there were significant differences in visual analogue scale scores,joint pain,C-reactive protein and erythrocyte sedimentation rate between the two groups(P<0.05).After 8 weeks of treatment,there were significant differences in visual analogue scale scores,C-reactive protein and erythrocyte sedimentation rate between the two groups(P<0.05).After 12 weeks of treatment,there were significant differences in visual analogue scale scores,C-reactive protein and erythrocyte sedimentation rate between the two groups(P<0.05).(2)The total effective rate of the study group was 93.75%,while that of the control group was 79.17%.The clinical efficacy of the study group was significantly better than that of the control group(P<0.05).(3)There were significant differences in interleukin-6,interferon-γ,macrophage migration inhibitory factor,rheumatoid factor IgA,rheumatoid factor IgM,metallomatrix proteinase 3,metallomatrix proteinase 9,and anti-cyclic citrulline antibody in the study group before and after treatment(P<0.05).The levels of interleukin-6,interferon-γ,rheumatoid factor IgA,rheumatoid factor IgM,metallomatrix proteinase 3,metallomatrix proteinase 9,and anti-cyclic citrulline antibody in the control group after treatment were significantly different from those before treatment(P<0.05).There were significant differences in interleukin-6,interferon-γ,macrophage migration inhibitory factor,rheumatoid factor IgA,rheumatoid factor IgM,metallomatrix proteinase 3,and anti-cyclic citrulline antibody between the two groups after treatment(P<0.05).(4)After 12 weeks of treatment,the comprehensive efficacy of patients of all ages in the study group was better than that of the control group(P<0.05).After 8 weeks of treatment,the comprehensive efficacy of patients aged 23-35,36-50,and 51-60 years old in the study group was better than that of the control group(P<0.05),and the comprehensive efficacy of patients aged 18-22 years old was comparable between the two groups.After 4 weeks of treatment,the comprehensive efficacy of patients aged 36-50 and 51-60 years old in the study group was better than that of the control group(P<0.05),and the comprehensive efficacy was comparable between the two groups of patients aged 18-22 and 23-35 years.Overall,Tiaodu Tongmai acupuncture therapy has advantages in treating preclinical rheumatoid arthritis patients aged 36-50 and 51-60 years.
7.Study on the Correlation between the Vaginal Microecology and CCL28 Levels Expression in the Vaginal Lavage Fluid of Patients with Persistent HR-HPV Infection
Meiyue TIAN ; Yuan WANG ; Yingdi CHEN ; Xiurong LIU
Journal of Modern Laboratory Medicine 2024;39(4):155-160
Objective To investigate the relationship between the vaginal microecology and CC chemokine ligand 28(CCL28)expression levels in the vaginal lavage fluid of patients with persistent high-risk human papillomavirus(HR-HPV)infection.Methods A total of 132 patients with HR-HPV infection at Tangshan Maternal and Child Health Hospital from April 2021 to April 2023 were selected as study subjects.Patients with HR-HPV infection were categorized into the single infection group and the persistent infection group according to the review results.The CCL28 and vaginal microecological indicators of the two groups were compared.Logistic regression was used to analyze the risk factors for persistent HR-HPV infection.The dose-response relationship between CCL28 and persistent HR-HPV infection was analyzed by fitting restricted cubic splines with logistic regression.Spearman and multiple linear regression were used to analyze the relationship between CCL28 and vaginal microecological indicators.Results After the re-examination of patients,there were 84(63.64%)cases of single infection and 48(36.36%)cases of persistent infection.The percentage of colony density grade Ⅰ(54.17%vs 16.67%),colony diversity grade Ⅰ(47.92%),pH>4.5(47.92%),hydrogen peroxide positivity(54.17%),and vaginal microecological imbalance(66.67%),and the level of CCL28[83.63(77.11,99.62)ng/L]in the persistent infection group were higher than those of the single infection group[16.76%,21.43%,15.48%,30.95%,41.67%,71.11(58.12,82.16)ng/L],and the differences were statistically significant(x2/Z=5.064~20.338,all P<0.05).Logistic regression analysis showed that colony density grade Ⅰ(OR=3.556,95%CI:1.241~10.194,P=0.018),PH>4.5(OR=4.366,95%CI:1.164~16.380,P=0.029),and high CCL28 levels(OR=1.048,95%CI:1.018~1.080,P=0.002)were independent risk factors for persistent infection in HR-HPV-infected patients.Logistic regression fitting restricted cubic splines showed a linear relationship between CCL28 and persistent HR-HPV infection(nonlinear test x2=0.61,P=0.437).Spearman correlation analysis results showed that CCL28 was positively correlated with age(r=0.205,P=0.018),colony density(r=0.429,P<0.001),colony diversity(r=0.389,P<0.001),pH(r=0.357,P<0.00l),hydrogen peroxide(r=0.409,P<0.001),leukocyte esterase(r=0.392,P<0.00l),and vaginal microecology(r=0.473,P<0.001).Linear regression analysis showed that colony density(β=12.295,P=0.003)and colony diversity(β=9.196,P=0.032)were independently associated with CCL28.Conclusion Colony density and colony diversity were independently correlated with CCL28.Colony density grade Ⅰ,pH>4.5,and high CCL28 levels suggest an increased risk of persistent infection in patients with HR-HPV infection.
8.Effect of Jiawei Chengqi decoction combined with enteral nutrition emulsion on intensive care unit stroke patients by regulating brain-derived neurotrophic factor/tyrosine kinase receptor B signaling pathway
Xiurong YANG ; Jie LIU ; Lan WANG
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2024;31(2):173-177
Objective To study the mechanism of Jiawei Chengqi decoction combined with enteral nutrition emulsion in the treatment of stroke patients by regulating brain-derived neurotrophic factor/tropomyosin kinase receptor B(BDNF/TrkB)signaling pathway.Methods A total of 200 stroke patients treated in the intensive care unit(ICU)of Xingtai Third Hospital from January 2020 to October 2022 were selected as the study objects,and the patients were randomly divided into observation group and control group,with 100 cases in each group.The control group was treated with enteral nutrition emulsion,and the observation group was treated with Jiawei Chengqi decoction on this basis[drug composition:Raw Rhubarb 10 g(bottom),Raw Malt 30 g,Sodium Powder 6 g(flush),Substitute Ochre 30 g(first),Magnolia Officinalis 10 g,Stir-fried Raphanus Japonicus 15 g,Stir-fried Fructus Aurifolius 15 g,Spiral Flower 10 g(pan-fried),whole Trichosanthes 30 g.100-200 mL of juice in water was consumed in 2 separate doses,once daily].The clinical efficacy,nutritional indexes[total protein(TP),hemoglobin(Hb),prealbumin(PA),albumin(ALB)],intestinal mucosal barrier indexes[diamine oxidase(DAO),procalcitonin(PCT),D-lactic acid],traditional Chinese medicine(TCM)syndrome score,TrkB,BDNF,and calcitonin gene-related peptide(CGRP)level differences were compared between the two groups after treatment.Results The total clinical effective rate of the observation group was significantly higher than that of the control group[92.00%(92/100)vs.81.00%(81/100),P<0.05].The levels of nutritional indexes TP,Hb,ALB,intestinal mucosal barrier,TCM syndrome score,TrkB,BDNF and CGRP in the two groups after treatment were significantly lower than those before treatment,and the nutritional indexes TP,Hb and PA in the observation group were significantly higher than those in the control group after treatment[TP(g/L):68.09±10.28 vs.64.53±9.81,Hb(g/L):133.48±33.38 vs.121.38±30.72,PA(mg/L):231.29±22.75 vs.219.73±20.48,all P<0.05],the levels of nutrition index ALB,mucosal barrier index,TCM syndrome score,TrkB,BDNF and CGRP were significantly lower than those of control group[ALB(g/L):36.78±5.32 vs.39.49±5.48,DAO(kU/L):3.19±0.53 vs.3.91±0.59,PCT(μg/L):5.05±0.68 vs.6.14±0.89,D-lactic acid(mmol/L):0.14±0.03 vs.0.22±0.03,abdominal pain and diarrhea scores:1.34±0.62 vs.2.45±0.73,abdominal cold pain scores:1.63±0.63 vs.2.38±1.03,waist and knee tenderness scores 0.96±0.41 vs.1.75±0.52,diet scores:1.14±0.41 vs.1.58±0.69,cold body cold integral scores:0.97±0.42 vs.1.68±0.54,TrkB(ng/L):285.02±28.15 vs.375.84±36.12,BDNF(ng/L):1 306.84±244.83 vs.1 718.84±378.83,CGRP(ng/L):79.68±9.56 vs.87.27±11.01,all P<0.05].Conclusion Using Jiawei Chengqi decoction in conjunction with enteral nutrition emulsion for treating stroke patients in the ICU can significantly improve the intestinal mucosal indexes and nutritional indexes of patients,making it a promoting approach in clinical practice.
9.Effect and Mechanism of RBM8A on Proliferation, Migration and Apoptosis of Human Endometrial Cancer HEC-1A Cells
Dongmei TAN ; Jingjing ZHANG ; Yimin SHI ; Sai HAN ; Wei GENG ; Jianyi SUN ; Yayu WANG ; Xiurong ZHANG
Cancer Research on Prevention and Treatment 2023;50(1):27-32
Objective To investigate the effect of silenced RBM8A gene on the biological behavior (proliferation, migration, and apoptosis) of human endometrial cancer HEC-1A cells and its possible mechanism. Methods The hairpin shRNA targeted by the RBM8A gene was designed, and the best shRNA silencing fragment was screened. The recombinant lentiviral interference vector carrying the target gene was constructed and used to infect HEC-1A cells. Cells with stable knockdown of RBM8A gene were screened by puromycin as the experimental group (shRBM8A), while the shRNA of nonsense sequence was designed as the control group (shControl). CCK-8 method was used to detect cell proliferation, and flow cytometry was used to detect cell apoptosis. Transwell assay was used to detect cell migration and invasion. Western blot was used to analyze the expression of apoptosis-related proteins and EMT signal transduction pathway related proteins. Results In comparison with the shControl group, after RBM8A knockdown, HEC-1A cell proliferation was reduced, apoptosis was increased, migration and invasion ability were significantly inhibited (
10.Analysis of genetic variants in a patient with Familial hemophagocytic lymphohistiocytosis.
Zaihui ZHANG ; Xiurong YU ; Zhihong WANG
Chinese Journal of Medical Genetics 2023;40(3):282-286
OBJECTIVE:
To explore the genetic basis for a patient with Familial hemophagocytic lymphohistiocytosis (FHL).
METHODS:
A 35-day-old male infant who was admitted to the Oriental Hospital Affiliated to Xiamen University on August 3, 2021 due to fever for over 7 hours was selected as the study subject. Whole exome sequencing (WES) was carried out for the proband and his parents, and candidate variants were selected based on the clinical phenotypes of the proband and confirmed by Sanger sequencing.
RESULTS:
WES and Sanger sequencing results revealed that the proband had harbored compound heterozygous c.67_71delinsGCCC and c.65delC variants of the PRF1 gene, which were respectively inherited from his mother and father. The c.67_71delinsGCCC variant was unreported previously. Based on the guidelines of American College of Medical Genetics and Genomics and clinical manifestations, it was classified as pathogenic (PVS1+PM2_Supporting+PM3+PP4). c.65delC was a known pathogenic variant (PVS1+PM2_Supporting+PM3_Strong+PP4).
CONCLUSION
The compound heterozygous variants of c.67_71delinsGCCC and c.65delC of the PRF1 gene probably underlay the disease in the proband. The identification of the novel variant has expanded the mutational spectrum of the PRF1 gene.
Male
;
Female
;
Humans
;
Lymphohistiocytosis, Hemophagocytic/genetics*
;
Genomics
;
Mothers
;
Mutation
;
Phenotype

Result Analysis
Print
Save
E-mail