1.Treatment of Hyperuricemia and Gouty Arthritis by Buyang Huanwu Tongfeng Decoction via Inhibition of PPAR-γ/NF-κB/AGEs/RAGE Pathway Based on Network Pharmacology
Yue CAO ; Wanmei YAO ; Tao YANG ; Man YANG ; Ruimin JIA ; Rongrong LU ; Xue FENG ; Biwang LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):182-192
ObjectiveThis paper aims to investigate the potential molecular biological mechanism of Buyang Huanwu Tongfeng decoction in treating hyperuricemia and gouty arthritis by network pharmacology and molecular docking technology and preliminarily verify the mechanism through animal experiments. MethodsThe active ingredients and targets in the Buyang Huanwu Tongfeng decoction were obtained by the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) and ETCM databases. The DisGeNET and GeneCards databases were utilized to acquire disease targets associated with hyperuricemia and gouty arthritis. These disease targets were then intersected with drug targets to identify key targets. The R language ClusterProfiler package and Python were employed for conducting gene ontology(GO) enrichment analysis and Kyoto encyclopedia of genes and genomes(KEGG) enrichment analysis. The regulatory network diagram of the drug-key target-function-pathway was visualized using Cytoscape 3.9.1 software, and the protein-protein interaction (PPI) network for key targets was depicted. Finally, the hub gene was determined through topological analysis. Auto Dock, PyMOL, and other software were used for molecular docking to explore the possible therapeutic mechanism of Buyang Huanwu Tongfeng decoction for hyperuricemia and gouty arthritis. In animal experiments, a composite rat model of hyperuricemia induced by intraperitoneal injection of oteracil potassium combined with gouty arthritis induced by the modified Coderre method was established. Through hematoxylin-eosin(HE) staining, uric acid test, enzyme linked immunosorbent assay(ELISA), Western blot, and real-time polymerase chain reaction(Real-time PCR), the molecular mechanism and key targets of Buyang Huanwu Tongfeng decoction for treating hyperuricemia and gouty arthritis were observed. ResultsAfter screening and removing duplicate values, 76 active ingredients and 15 key targets were finally obtained. GO enrichment analysis yielded that the treatment of hyperuricemia and gouty arthritis with Buyang Huanwu Tongfeng decoction was significantly associated with acute inflammatory response, astrocyte activation, regulation of interleukin (IL)-8 production, nuclear receptor activity, and binding of growth factor receptor. KEGG pathway enrichment analysis obtained that the key target genes were significantly associated with the IL-17 signaling pathway, advanced glycosylation end/receptor of advanced glycation endproducts(AGE/RAGE) signaling pathway, anti-inflammatory, and other pathways. PPI network indicated that albumin(ALB), peroxisome proliferator-activated receptor-γ (PPAR-γ), IL-6, IL-1β, and C-reactive protein(CRP) were the key protein targets. The molecular docking results showed that ALB had the strongest binding force with beta-carotene (β-carotene). Biochemical results showed that blood uric acid decreased in the Buyang Huanwu Tongfeng decoction groups. HE staining results showed that the low-dose (7.76 g·kg-1·d-1), medium-dose (15.53 g·kg-1·d-1), and high-dose (31.05 g·kg-1·d-1) groups of Buyang Huanwu Tongfeng decoction had different degrees of remission, and the remission of the high-dose group was the most obvious. Fibroblastic tissue hyperplasia in synovial joints accompanied with inflammatory cell infiltration, as well as inflammatory cell infiltration in renal tissue of the high-dose group was significantly reduced, followed by the medium-dose and low-dose groups, and the expression of ALB, PPAR-γ, IL-6, IL-1β, and CRP was down-regulated to different degrees. ConclusionBy regulating the targets such as ALB, PPAR-γ, IL-6, IL-1β, and CRP, inhibiting the PPAR-γ/nuclear transcription factor (NF)-κB pathway, and reducing AGEs/RAGE-mediated inflammation, Buyang Huanwu Tongfeng decoction exerts anti-inflammatory and analgesic effects and activates blood circulation and diuresis in the treatment of hyperuricemia and gouty arthritis.
2.Immunotherapy for Lung Cancer
Pei-Yang LI ; Feng-Qi LI ; Xiao-Jun HOU ; Xue-Ren LI ; Xin MU ; Hui-Min LIU ; Shou-Chun PENG
Progress in Biochemistry and Biophysics 2025;52(8):1998-2017
Lung cancer is the most common malignant tumor worldwide, ranking first in both incidence and mortality rates. According to the latest statistics from the International Agency for Research on Cancer (IARC), approximately 2.5 million new cases and around 1.8 million deaths from lung cancer occurred in 2022, placing a tremendous burden on global healthcare systems. The high mortality rate of lung cancer is closely linked to its subtle early symptoms, which often lead to diagnosis at advanced stages. This not only complicates treatment but also results in substantial economic losses. Current treatment options for lung cancer include surgery, radiotherapy, chemotherapy, targeted drug therapy, and immunotherapy. Among these, immunotherapy has emerged as the most groundbreaking advancement in recent years, owing to its unique antitumor mechanisms and impressive clinical benefits. Unlike traditional therapies such as radiotherapy and chemotherapy, immunotherapy activates or enhances the patient’s immune system to recognize and eliminate tumor cells. It offers advantages such as more durable therapeutic effects and relatively fewer toxic side effects. The main approaches to lung cancer immunotherapy include immune checkpoint inhibitors, tumor-specific antigen-targeted therapies, adoptive cell therapies, cancer vaccines, and oncolytic virus therapies. Among these, immune checkpoint inhibitors and tumor-specific antigen-targeted therapies have received approval from the U.S. Food and Drug Administration (FDA) for clinical use in lung cancer, significantly improving outcomes for patients with advanced non-small cell lung cancer. Although other immunotherapy strategies are still in clinical trials, they show great potential in improving treatment precision and efficacy. This article systematically reviews the latest research progress in lung cancer immunotherapy, including the development of novel immune checkpoint molecules, optimization of treatment strategies, identification of predictive biomarkers, and findings from recent clinical trials. It also discusses the current challenges in the field and outlines future directions, such as the development of next-generation immunotherapeutic agents, exploration of more effective combination regimens, and the establishment of precise efficacy prediction systems. The aim is to provide a valuable reference for the continued advancement of lung cancer immunotherapy.
3.Serological and molecular biological analysis of a rare Dc- variant individual
Xue TIAN ; Hua XU ; Sha YANG ; Suili LUO ; Qinqin ZUO ; Liangzi ZHANG ; Xiaoyue CHU ; Jin WANG ; Dazhou WU ; Na FENG
Chinese Journal of Blood Transfusion 2025;38(8):1101-1106
Objective: To reveal the molecular biological mechanism of a rare Dc-variant individual using PacBio third-generation sequencing technology. Methods: ABO and Rh blood type identification, DAT, unexpected antibody screening and D antigen enhancement test were conducted by serological testing. The absorption-elution test was used to detect the e antigen. RHCE gene typing was performed by PCR-SSP, and the 1-10 exons of RHCE were sequenced by Sanger sequencing. The full-length sequences of RHCE, RHD and RHAG were detected by PacBio third-generation sequencing technology. Results: Serological findings: Blood type O, Dc-phenotype, DAT negative, unexpected antibody screening negative; enhanced D antigen expression; no detection of e antigen in the absorption-elution test. PCR-SSP genotyping indicated the presence of only the RHCE
c allele. Sanger sequencing results: Exons 5-9 of RHCE were deleted, exon 1 had a heterozygous mutation at c. 48G/C, and exon 2 had five heterozygous mutations at c. 150C/T, c. 178C/A, c. 201A/G, c. 203A/G and c. 307C/T. Third-generation sequencing results: RHCE genotype was RHCE
02N. 08/RHCE-D(5-9)-CE; RHD genotype was RHD
01/RHD
01; RHAG genotype was RHAG
01/RHAG
01 (c. 808G>A and c. 861G>A). Conclusion: This Dc-individual carries the allele RHCE
02N. 08 and the novel allele RHCE-D(5-9)-CE. The findings of this study provide data support and a theoretical basis for elucidating the molecular mechanisms underlying RhCE deficiency phenotypes.
4.Regulatory Effect of Huangqin Tang on Metabolic Homeostasis During Colitis-cancer Transformation in Colitis-associated Colorectal Cancer
Xingbo ZUO ; Xue FENG ; Caijuan ZHANG ; Haifan LIU ; Jianyao LIU ; Bin LIU ; Lin ZHU ; Qiyue SUN ; Dunfang WANG ; Weipeng YANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(22):21-28
ObjectiveTo investigate the mechanism of Huangqin Tang (HQT) in regulating metabolic reprogramming during the inflammation-cancer transformation in colitis-associated colorectal cancer (CAC). MethodsCAC mouse model was established using the carcinogen azoxymethane (AOM) combined with the inflammatory agent dextran sulfate sodium (DSS). HQT treatment was adopted. Serum metabolomics analysis was performed at three stages (inflammation, proliferation, and tumor formation) using liquid chromatography-tandem mass spectrometry (LC-MS/MS) untargeted metabolomics coupled with multivariate statistical analysis to explore the mechanism of HQT intervention in metabolism in CAC. ResultsThe results revealed that HQT significantly reversed the disturbance of key metabolites in CAC mice. A total of 52, 67, and 45 differential metabolites were identified in the model group, compared to the normal group, during inflammation, proliferation, and tumor stages, respectively. Lactate, linoleic acid, oleic acid, elaidic acid, and betaine were characteristic metabolites persistently enriched throughout colitis-cancer transformation. Pathway enrichment analysis of differential metabolites showed that linoleic acid metabolism and arachidonic acid metabolism were the most significantly disturbed in CAC pathogenesis. The proliferation stage featured expanded amino acid metabolic networks, while the tumor stage uniquely exhibited two new pathways of nicotinate and nicotinamide metabolism and phosphoinositide metabolism. HQT exerted stage-specific regulatory effects: targeting arachidonic acid metabolism in the inflammation stage, correcting the dysregulation of choline-carnitine metabolism in the proliferation stage, and rescuing nicotinamide and tryptophan metabolic collapse in the tumor stage. ConclusionHQT exerts regulatory effects on metabolic disorders at various stages of the colitis-cancer transformation process, thereby effectively slowing the progression from colitis to cancer. The study also reveals the dynamic metabolic characteristics of colorectal "inflammation-cancer transformation,"providing new insights for research on the targeted mechanisms of traditional Chinese medicine in anti-tumor therapy based on metabolic reprogramming.
5.Research status of traditional Chinese medicine intervention in mTOR pathway targeting autophagy for prevention and treatment of diabetic nephropathy
Shi-Rui YANG ; Ting-Ting ZHOU ; Chao-Chao MA ; Peng-Fei YANG ; Fan-Qi NIU ; Xue-Yang DU ; Feng-Zhe YAN ; Si-Nong WANG
The Chinese Journal of Clinical Pharmacology 2024;40(11):1675-1678
Diabetic kidney disease(DKD)is one of the most important complications of diabetes.In recent years,domestic and foreign studies have found that mammalian target protein of rapamycin(mTOR)related signaling pathway is a classic pathway involved in the regulation of autophagy,which can achieve the therapeutic effect of DKD by targeting the autophagy pathway,and plays a crucial role in the prevention and treatment of DKD.In this paper,we reviewed the mechanism of mTOR-related signaling pathway targeted autophagy in the prevention and treatment of DKD,in order to provide a new reference and basis for clinical prevention and treatment of DKD.
6.Effect of oxaliplatin combined with AG1478 on lung cancer by regulating reactive oxygen species and inhibiting PI3K/AKT pathway
Dong-Xue WEI ; Shao-Feng JIANG ; Shan CUI ; Yang LI ; Jin-Qing HUANG
The Chinese Journal of Clinical Pharmacology 2024;40(12):1754-1758
Objective To investigate the effect of epidermal growth factor tyrosine kinase inhibitor AG1478 combined with oxaliplatin(OXA)on non-small cell lung cancer cells H1299.Methods H1299 cells were divided into control group(conventional culture,without drug),OXA-25,-50,-100 groups(25,50 and 100 μmol·L-1 OXA),AG-20 group(20 μmol·L-1AG1478)and OXA+AG group(25 μmol·L-1 OXA and 20 μmol·L-1AG1478).Detection of cell survival rate by MTT assay and calculation of half inhibitory concentration(IC50).Reactive oxygen species(ROS)probe H2DCFDA was used to detect ROS levels.Autophagy of H1299 cells was detected by MDC method.Western blot was used to detect the expression levels of phosphorylated-phosphoinositide 3-kinase(p-PI3 K),phosphorylated-protein kinase B(p-AKT),autophagy protein(Beclin-1)and microtubule associated protein light chain 3-Ⅱ(LC3-Ⅱ).Results The IC50 of OXA on H1299 cells was 91.09 μmol·L-1.The IC50 of AG1478 on H1299 cells was 31.83 μmol·L-1.The relative ROS level were 1.00±0.03,1.15±0.02,1.76±0.04,2.89±0.02,1.05±0.01 and 3.20±0.03,respectively;the relative MDC levels were 1.00±0.04,1.10±0.02,1.16±0.02,1.46±0.04,1.04±0.01 and 1.31±0.02,respectively;the relative expression levels of p-PI3K protein were 1.12±0.05,0.88±0.06,0.72±0.07,0.60±0.05,0.91±0.07 and 0.64±0.09,respectively;the relative expression levels of p-AKT protein were 1.09±0.04,0.87±0.08,0.77±0.07,0.63±0.05,0.76±0.05 and 0.46±0.03,respectively;the relative expression levels of Beclin-1 protein were 0.82±0.03,0.91±0.04,1.06±0.28,1.11±0.03,0.87±0.04 and 1.27±0.10,respectively;the relative expression levels of LC3-Ⅱ protein were 0.65±0.08,0.82±0.11,1.08±0.12,1.38±0.09,0.72±0.11 and 1.38±0.15,respectively.Compared the OXA+AG group and the OXA single group with the control group,compared the OXA+AG group with the OXA single group,there were statistically significant differences in the above indicators(P<0.05,P<0.01).Conclusion AG1478 combined with OXA can increase ROS levels in non-small cell lung cancer cells H1299 and inhibit the activation of PI3K signaling pathway,thus inducing autophagy.
7.Sishenwan Combined with Tongxie Yaofang Treats Ulcerative Colitis with Spleen-kidney Yang Deficiency and Liver Depression
Yaqing LIU ; Haifan LIU ; Bin LIU ; Xue FENG ; Caijuan ZHANG ; Dunfang WANG ; Lin ZHU ; Weipeng YANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(7):40-48
ObjectiveTo induce the rat model of ulcerative colitis (UC) with spleen-kidney Yang deficiency and liver depression, and explore the efficacy and mechanism of Sishenwan combined with Tongxie Yaofang (SSW&TXYF) based on the therapeutic principles of tonifying spleen, soothing liver, warming kidney, and astringing intestine. MethodSixty male SD rats were randomized into normal, model, mesalazine, and high-, medium-, and low-dose SSW&TXYF groups. The rats in other groups except the normal group were administrated with Sennae Folium decoction and hydrocortisone and received tail clamping for 14 days. On day 14, rats received enema with TNBS-ethanol solution to induce UC. The rats were administrated with corresponding drugs from day 15 of modeling, and the body weight and mental state were observed and recorded. The sucrose preference test was performed from day 25. On day 28, the rectal temperature was measured, and the rats were administrated with 3% D-xylose solution at a dose of 10 mL·kg-1 by gavage. Blood was sampled 1 h later, from which the serum was collected for measurement of the D-xylose content. The serum, hippocampus, and colorectum samples of rats were collected on day 29. The levels of gastrin (GAS), adrenocorticotropic hormone (ACTH), corticosterone (CORT), cyclic adenosine monophosphate (cAMP), cyclic guanosine monophosphate (cGMP), interleukin (IL)-4, tumor necrosis factor (TNF)-α, and interferon (IFN)-γ in the serum and 5-hydroxytryptamine (5-HT) in the hippocampus were determined by enzyme-linked immunosorbent assay. Hematoxylin-eosin staining was employed to reveal the colonic lesions. The mRNA and protein levels of p38 mitogen-activated protein kinase (MAPK), extracellular signal-regulated kinase (ERK), and c-Jun N-terminal kinase (JNK) in the colon tissue were determined by Real-time PCR and Western blot, respectively. ResultCompared with the normal group, the model group showed decreased body weight, anal temperature, and D-xylose content in the serum and increased GAS content (P<0.01). The modeling led to cAMP/cGMP unbalance and decreased the ACTH and CORT content in the serum (P<0.01), the preference for sucrose water, and the 5-HT content in the hippocampus (P<0.01). Moreover, it shortened the colorectal length and caused massive infiltration of inflammatory cells and severe structural damage in the colon tissue. High, medium, and low doses of SSW&TXYF improved above indicators (P<0.05, P<0.01), reduced inflammatory infiltration, and repaired the pathological damage of the tissue. Compared with the normal group, the model group showed lowered IL-4 level (P<0.01) and elevated TNF-α and IFN-γ levels (P<0.05, P<0.01) in the serum, as well as up-regulated expression of p38 MAPK, ERK, and JNK (P<0.05, P<0.01). Compared with the model group, SSW&TXYF elevated the IL-4 level (P<0.01), lowered the TNF-α and IFN-γ levels (P<0.05, P<0.01), and down-regulated the mRNA and protein levels of p38 MAPK, ERK, and JNK (P<0.05, P<0.01). ConclusionA rat model of UC with spleen-kidney Yang deficiency and liver depression was successfully established. SSW&TXYF can significantly mitigate this syndrome by reducing the inflammatory response in the colon and inhibiting the MAPK pathway.
8.Effect of Xiangsha Liu Junzitang Combined with Phlegm-removing and Detoxifying Traditional Chinese Medicine on Immune Escape in Lewis Lung Cancer Mice
Qian YANG ; Shumei WANG ; Shihan FENG ; Xue ZHAN ; Lintao XIA ; Mingxing WU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(7):78-86
ObjectiveTo study the effect and mechanism of Xiangsha Liu Junzitang combined with phlegm-removing and detoxifying traditional Chinese medicine on immune escape in Lewis lung cancer mice. MethodA total of 60 specific-pathogen-free (SPF)-grade C57BL/6J male mice were injected subcutaneously with 0.2 mL of Lewis cell suspension (containing 2×106 cells·mL-1) in the right mid-axillary line. After 7 days, the mice that had been successfully modeled were randomly divided into six groups: the model group, the cisplatin group, the Xiangsha Liu Junzitang low-, medium-, and high-dose groups, and the combined group, with 10 mice in each group. The Xiangsha Liu Junzitang low-, medium- and high-dose groups were gavaged with 17.88, 35.75, 71.50 g·kg-1 Xiangsha Liu Junzitang solution once a day, respectively, and the dosage of cisplatin intraperitoneally injected into the mice was converted to 5 mg·kg-1 twice a week, and the tumour volumes of each group were measured every two days. The intervention lasted for 14 consecutive days. At the end of treatment, the tumour mass of mice in each group was weighed and the tumour inhibition rate was calculated. The morphological characteristics of tumours in each group were observed by hematoxylin-eosin (HE) staining. Fluorescent quantitative real-time polymerase chain reaction (Real-time PCR) assay was used to detect messenger ribonucleic acid (mRNA) contents of the natural killer group 2 member D (NKG2D) receptor, ribonucleic acid export-1 (RAE-1), and γ interferon (IFN-γ) in the tumour tissues of each group. NKG2D, RAE-1, and IFN-γ mRNA in tumour tissues of each group. Immunohistochemistry (IHC) and Western blot were applied to detect the expressions of RAE-1, NKG2D, and IFN-γ in tumour tissues of each group, and Western blot was used to detect the expressions of interleukin-6 (IL-6), Janus kinase 2 (JAK2), p-JAK2, signal transducer and activator of transcription 3 (STAT3), and p-STAT3 in tumour tissues of each group, as well as the protein levels of NKG2D, and RAE-1 in spleen tissues of each group. ResultCompared with that in the model group, the tumour mass decreased in all dose groups of Xiangsha Liu Junzitang, with no statistically significant difference. The tumour volume was reduced (P<0.05, P <0.01). The pathological morphology was improved. The mRNA contents of NKG2D, RAE-1 and IFN-γ were increased in the medium-dose group (P<0.05, P<0.01), and the protein expressions of NKG2D, RAE-1, and IFN-γ in tumour tissues were elevated (P<0.05, P<0.01), and p-JAK2 and p-STAT3 protein expressions were decreased (P<0.05, P<0.01). In spleen tissues, the protein expressions of NKG2D and RAE-1 in all dose groups of Xiangsha Liu Junzitang were significantly elevated (P<0.01). Compared with those in the cisplatin group, NKG2D, RAE-1 and IFN-γ mRNA contents were elevated in the middle-dose group of Xiangsha Liu Junzitang, and the difference was not statistically significant. IHC showed that the protein expressions of NKG2D and IFN-γ in the combined group were significantly elevated (P<0.01), and Western blot results showed that the protein expressions of RAE-1, NKG2D and IFN-γ were elevated (P<0.05, P<0.01). p-JAK2 and p-STAT3 protein expressions were decreased in the combined group (P<0.05, P<0.01). NKG2D and RAE-1 protein expressions were significantly increased in spleen tissues of the medium-dose groups and the combined group (P<0.01). ConclusionXiangsha Liu Junzitang combined with phlegm-removing and detoxifying traditional Chinese medicine can inhibit the growth of tumours in Lewis lung cancer mice by up-regulating the expressions of RAE-1/NKG2D, promoting the activation of NK cells, and inhibiting immune escape, the mechanism of which may be related to down-regulation of the JAK2/STAT3 pathway.
9.Effect of Huangqintang on Inflammation and Short-chain Fatty Acid-related Gut Microbiota in Mouse Model of Inflammation-associated Colorectal Cancer
Lin ZHU ; Dunfang WANG ; Xue FENG ; Caijuan ZHANG ; Haifan LIU ; Yaqing LIU ; Bin LIU ; Li LIU ; Siyuan CHEN ; Weipeng YANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(23):157-169
ObjectiveTo construct a mouse model of inflammation-associated colorectal cancer (CAC) by using azoxymethane (AOM)/dextran sulfate sodium (DSS) and investigate the effect of Huangqintang on the gut microbiota structure of mice during the occurrence and development of CAC by 16S rRNA gene high-throughput sequencing. MethodA total of 225 C57BL/6J mice were randomized into 5 groups (n=45): Normal, model, positive drug (mesalazine), and high (18 g·kg-1) and low (9 g·kg-1)-dose Huangqintang. Except those in the normal group, each mouse was injected with 10 mg·kg-1 AOM on day 1 and day 5 within 1 week and then given 1.5% DSS solution for 7 days, which was then changed to sterile water for 14 days. This process referred to as one cycle, and mice were treated for a total of 3 cycles. On the first day of DSS treatment, mice were administrated with corresponding drugs by gavage, and the normal group and the model group were administrated with pure water by gavage, once a day until the end of the third cycle. The progression of CAC was divided into inflammation, proliferation, and tumorigenesis stages. At the end of each cycle, the body weight and colon length were measured for mice in each group, and the number of colon tumors in mice was recorded. Meanwhile, the disease activity index (DAI) was determined. The serum levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and carbohydrate antigen-199 (CA199), a tumor marker in the gastrointestinal tract of mice, were measured by ELISA. Hematoxylin-eosin staining was employed to observe colon lesions. At the same time, 3-5 pellets of fresh feces of mice in the normal group, model group, and high-dose Huangqintang group were collected, from which the fecal DNA of mice was extracted for 16S rRNA gene high-throughput sequencing. ResultCompared with the normal group, the model group showed decreased body weight (P<0.01), increased DAI, and shortened colon length (P<0.05) at the three stages. Compared with the normal group, the model group showed elevated levels of IL-1β, IL-6, and TNF-α (P<0.05) at the proliferation stage and elevated levels of CA199 at the inflammation, proliferation, and tumorigenesis (P<0.01) stages. Compared with the normal group, the model group presented obvious infiltration of inflammatory cells at the inflammation stage, thickening of the muscle layer and abnormal proliferation of mucosal layer cells at the proliferation and tumorigenesis stages, and final formation of advanced intraepithelial tumor lesions. Compared with the model group, the Huangqintang groups showed no significant improvement in the body weight, decreased DAI score, and increased colon length at the three stages, and the increase of colon length in the tumorigenesis stage was significant (P<0.01). At the tumorigenesis stage, the administration of Huangqintang inhibited tumor formation and growth, reduced the number of tumors (P<0.01), lowered the levels of IL-6 (P<0.05, P<0.01), TNF-α (P<0.05, P<0.01), and IL-1β at the three stages, and decreased CA199 at the inflammation stage as well as at the proliferation and tumorigenesis stages (P<0.01, P<0.05). Compared with the model group, the administration of Huangqintang reduced inflammation and abnormal cell proliferation, delaying the occurrence of tumors. Compared with the normal group, the model group showcased decreased alpha and beta diversity and altered structure of gut microbiota at the inflammation, proliferation, and tumorigenesis stages. The administration of Huangqintang adjusted the abundance and diversity of gut microbiota to the normal levels. At the inflammation stage, Huangqintang positively regulated two differential phyla (Firmicutes and Bacteroidetes) and three differential genera (Muribaculaceae, Rikenellaceae_RC9_gut_group, and Flavonifractor) in mice. At the proliferation stage, Huangqintang positively regulated two differential phyla (Bacteroidetes and Patescibacteria) and five differential genera (Muribaculaceae, Rikenellaceae_RC9_gut_group, Candidatus_Saccharimonas, norank_f__UCG-010, and Allobaculum). At the tumorigenesis stage, Huangqintang positively regulated two differential phyla (Proteobacteria and Patescibacteria) and eight differential genera (Muribaculaceae, Candidatus_Saccharimonas, norank_f_UCG-010, Lachnospiraceae_UCG-006, Allobaculum, Bacteroides, Lachnospiraceae_NK4A136_group, and Flavonifractor) in mice. ConclusionHuangqintang can intervene in the AOM/DSS-induced transformation of inflammation to CAC in mice by correcting inflammation and short-chain fatty acid-related microbiota disorders.
10.TSHR Variant Screening and Phenotype Analysis in 367 Chinese Patients With Congenital Hypothyroidism
Hai-Yang ZHANG ; Feng-Yao WU ; Xue-Song LI ; Ping-Hui TU ; Cao-Xu ZHANG ; Rui-Meng YANG ; Ren-Jie CUI ; Chen-Yang WU ; Ya FANG ; Liu YANG ; Huai-Dong SONG ; Shuang-Xia ZHAO
Annals of Laboratory Medicine 2024;44(4):343-353
Background:
Genetic defects in the human thyroid-stimulating hormone (TSH) receptor (TSHR) gene can cause congenital hypothyroidism (CH). However, the biological functions and comprehensive genotype–phenotype relationships for most TSHR variants associated with CH remain unexplored. We aimed to identify TSHR variants in Chinese patients with CH, analyze the functions of the variants, and explore the relationships between TSHR genotypes and clinical phenotypes.
Methods:
In total, 367 patients with CH were recruited for TSHR variant screening using whole-exome sequencing. The effects of the variants were evaluated by in-silico programs such as SIFT and polyphen2. Furthermore, these variants were transfected into 293T cells to detect their Gs/cyclic AMP and Gq/11 signaling activity.
Results:
Among the 367 patients with CH, 17 TSHR variants, including three novel variants, were identified in 45 patients, and 18 patients carried biallelic TSHR variants. In vitro experiments showed that 10 variants were associated with Gs/cyclic AMP and Gq/11 signaling pathway impairment to varying degrees. Patients with TSHR biallelic variants had lower serum TSH levels and higher free triiodothyronine and thyroxine levels at diagnosis than those with DUOX2 biallelic variants.
Conclusions
We found a high frequency of TSHR variants in Chinese patients with CH (12.3%), and 4.9% of cases were caused by TSHR biallelic variants. Ten variants were identified as loss-of-function variants. The data suggest that the clinical phenotype of CH patients caused by TSHR biallelic variants is relatively mild. Our study expands the TSHR variant spectrum and provides further evidence for the elucidation of the genetic etiology of CH.

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