1.Prognostic significance of TRIM28 elevation in non-M3 acute myeloid leukemia
Siqi GONG ; Cong LI ; Mengmeng FAN ; Huiping WANG ; Wanqiu ZHANG ; Xue LIANG ; Qianshan TAO ; Qiang HONG ; Zhimin ZHAI
Acta Universitatis Medicinalis Anhui 2026;61(2):301-308
ObjectiveTo clarify the expression of TRIM28 in non-M3 acute myeloid leukemia (AML) and its correlation with clinical indicators and prognosis, and to further explore the effect of TRIM28 expression levels on the proliferation and apoptosis of AML cells using small interfering RNA. MethodsThe GSE34577 dataset was analyzed using R software to compare TRIM28 expression between healthy controls and non-M3 acute myeloid leukemia (AML) patients. Clinical samples from non-M3 AML patients were collected, with TRIM28 expression levels measured using real-time quantitative PCR (qPCR). The analysis focused on correlations between TRIM28 expression and various clinical indicators, treatment efficacy, and patient prognosis. Furthermore, small interfering RNA (siRNA) technology was employed to downregulate TRIM28 expression in human primary AML cells (HL60 cell line). The effects on cell proliferation and apoptosis were then assessed through CCK-8 assays and flow cytometry, respectively. ResultsThe results showed that TRIM28 was up-regulated in non-M3 AML of both online database GSE34577 and clinical samples (P<0.000 1), TRIM28 expression of new diagnosis group and relapsed refractory group was higher than iron deficiency anemia group (P<0.01), and there was no significance between different French-American-British classification systems subtype. TRIM28 expression was higher in non-M3 AML patients with a poor genetic prognosis stratified as moderate than in the good prognosis group, and TRIM28 expression was associated with NPM1 combined with the FLT3-ITD mutation, positively correlated with age, bone marrow blast, peripheral blood blast and white blood cell, negatively correlated with hemoglobin. In addition, interference TRIM28 greatly inhibited cell proliferation and promoted cell apoptosis. ConclusionThis study reveals that TRIM28 is highly expressed in non-M3 AML and associated with prognosis, and plays a key role in the proliferation and apoptosis of AML cells, suggesting that TRIM28 may serve as a novel therapeutic target for non-M3 AML.
2.Improvement of Colonic Mucosa Inflammatory Response in Mice with Ulcerative Colitis by Xiezhuo Jiedu Recipe Through miRNA-155-5p/JAK2/STAT3 Pathway
Chaodi SUN ; Mengmeng ZHAO ; Xiaomeng LANG ; Jie REN ; Xin KANG ; Jiancong CUI ; Sujie JIA ; Yujing MA ; Yue LIU ; Qiang CHUAI ; Wenjing ZHAI ; Jianping LIU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(11):174-182
ObjectiveThe differential expression of microRNAs (miRNAs) between the active stage and the remission stage of ulcerative colitis (UC) was analyzed by bioinformatics method, and the regulatory relationship was constructed by screening the differentially expressed genes (DEGs). The mechanism of Xizhuo Jiedu recipe in the treatment of UC was speculated and verified by animal experiments. MethodThe miRNAs data set of colonic mucosa tissue of UC patients was obtained from the gene expression database (GEO), and the most differentially expressed miRNAs were screened by GEO2R, Excel, and other tools as research objects. TargetScan, miRTarbase, miRDB, STRING, TRRUST, and Matescape databases were used to screen key DEGs, predict downstream transcription factors (TFs), gene ontology (GO), and conduct Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. The key signaling pathways were selected for animal experiments. In animal experiments, the UC mouse model was prepared by making the mouse freely drink 2.5% dextran sodium sulfate (DSS). Xiezhu Jiedu recipe and mesalazine were given by gavage for seven days, and the inflammatory infiltration of colonic mucosa was observed by hematoxylin-eosin (HE) staining. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was used to detect the mRNA expression of miR-155-5p in colon tissue. Immunohistochemistry and Western blot were used to detect the protein expression levels of cytokine signal transduction inhibitor (SOCS1), phosphorylated transcriptional signal transductor and activator 3 (p-STAT3), phosphorylated Janus kinase 2 (p-JAK2), and retinoic acid-associated orphan receptor-γt (ROR-γt). The expression levels of transforming growth factor-β (TGF-β), interleukin-17 (IL-17), interleukin-6 (IL-6), and interleukin-10 (IL-10) in serum were detected by enzyme linked immunosorbent assay (ELISA). ResultThe GSE48957 dataset was screened from the GEO database, and miR-155-5p was selected as the research object from the samples in the active and remission stages. 131 DEGs were screened. The GO/KEGG enrichment analysis was closely related to biological processes such as positive regulation of miRNA transcription and protein phosphorylation, as well as signaling pathways such as stem cell signaling pathway, IL-17 signaling pathway, and helper T cell 17 (Th17) cell differentiation. The Matescape database was used to screen out 10 key DEGs, among which SOCS1 was one of the key DEGs of miR-155-5p. Further screening of the TFS of key DEGs revealed that STAT3 was one of the main TFs of SOCS1. The results of animal experiments showed that Xiezhu Jiedu Recipe could effectively down-regulate the mRNA expression of miR-155-5p and protein expression of p-STAT3, p-JAK2, and ROR-γt in colon tissue of UC mice and the expression of IL-17 and IL-6 in serum of UC mice, up-regulate the protein expression of SOCS1 and the expression of TGF-β and IL-10, increase the level of anti-inflammatory factors, and reduce inflammatory cell infiltration. ConclusionIt is speculated that Xizhuo Jiedu recipe may interfere with SOCS1 by regulating the expression of miR-155-5p in UC mice, inhibit the phosphorylation of STAT3, inhibit the differentiation of CD4+ T cells into Th17 cells, reduce the levels of pro-inflammatory factors (IL-17 and IL-6), and increase the levels of anti-inflammatory factors (TGF-β and IL-10). As a result, the inflammation of colon mucosa in UC mice was alleviated.
3.Meta-analysis of efficacy and safety of belimumab in the treatment of childhood-onset systemic lupus erythematosus
Xin YU ; Wensheng ZHAI ; Mengmeng ZHANG ; Xiangge REN
China Pharmacy 2023;34(16):2003-2007
OBJECTIVE To evaluate the efficacy and safety of belimumab in the treatment childhood-onset systemic lupus erythematosus (cSLE), and to provide evidence-based references for clinical medication. METHODS Randomized controlled trials (RCTs) about belimumab or belimumab combined with hormone or belimumab combined with hormone and traditional drugs (test group) compared with placebo or hormone or traditional drugs or traditional drugs combined with hormone (control group) were collected by computer searching CNKI, Wanfang data, VIP, SinoMed, PubMed, Embase, Web of Science and the Cochrane Library; the search deadline was from the establishment of the databases to April 9th, 2023. After screening the literature and extracting the data, the quality of the included literature was evaluated by using the bias risk assessment tool recommended by Cochrane system evaluation manual 5.1.0; meta-analysis and sensitivity analysis were conducted by using RevMan 5.4 software. RESULTS A total of 510 children were included in 7 RCTs. Results of the meta-analysis showed that the clinically effective rate of test group was significantly better than the control group [OR=6.16, 95%CI (2.23, 17.00), P=0.000 4]. There were no statistically significant differences in SLE disease activity index (SLEDAI) [MD=-1.73, 95%CI (-3.50, 0.05), P=0.06], the incidence of adverse drug reactions [OR=0.72, 95%CI (0.43, 1.19), P=0.02], complement C3 levels [MD=0.12, 95%CI (-0.06, 0.30), P=0.18], complement C4 levels [MD=0.08,95%CI (-0.07,0.24), P=0.30] or the response rate of SLE responder index 4 [OR=1.52, 95%CI (0.94,2.44), P=0.09] between 2 groups. The results of sensitivity analysis showed that when SLEDAI, the complement C3 levels and complement C4 levels were used as indicators, the results obtained in this study were robust. CONCLUSIONS The efficacy of belimumab in the treatment of cSLE is good, and its safety is comparable to the basic treatment.
4.Venous thromboembolism in children with acute lymphoblastic leukemia in China: a report from the Chinese Children's Cancer Group-ALL-2015.
Mengmeng YIN ; Hongsheng WANG ; Xianmin GUAN ; Ju GAO ; Minghua YANG ; Ningling WANG ; Tianfeng LIU ; Jingyan TANG ; Alex W K LEUNG ; Fen ZHOU ; Xuedong WU ; Jie HUANG ; Hong LI ; Shaoyan HU ; Xin TIAN ; Hua JIANG ; Jiaoyang CAI ; Xiaowen ZHAI ; Shuhong SHEN ; Qun HU
Frontiers of Medicine 2023;17(3):518-526
Venous thromboembolism (VTE) is a complication in children with acute lymphoblastic leukemia (ALL). The Chinese Children's Cancer Group-ALL-2015 protocol was carried out in China, and epidemiology, clinical characteristics, and risk factors associated with VTE were analyzed. We collected data on VTE in a multi-institutional clinical study of 7640 patients with ALL diagnosed in 20 hospitals from January 2015 to December 2019. First, VTE occurred in 159 (2.08%) patients, including 90 (56.6%) during induction therapy and 108 (67.92%) in the upper extremities. T-ALL had a 1.74-fold increased risk of VTE (95% CI 1.08-2.8, P = 0.022). Septicemia, as an adverse event of ALL treatment, can significantly promote the occurrence of VTE (P < 0.001). Catheter-related thrombosis (CRT) accounted for 75.47% (n = 120); and, symptomatic VTE, 58.49% (n = 93), which was more common in patients aged 12-18 years (P = 0.023), non-CRT patients (P < 0.001), or patients with cerebral thrombosis (P < 0.001). Of the patients with VTE treated with anticoagulation therapy (n = 147), 4.08% (n = 6) had bleeding. The VTE recurrence rate was 5.03% (n = 8). Patients with VTE treated by non-ultrasound-guided venous cannulation (P = 0.02), with residual thrombus (P = 0.006), or with short anticoagulation period (P = 0.026) had high recurrence rates. Thus, preventing repeated venous puncture and appropriately prolonged anticoagulation time can reduce the risk of VTE recurrence.
Humans
;
Child
;
Venous Thromboembolism/etiology*
;
East Asian People
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma/epidemiology*
;
Risk Factors
;
Thrombosis/chemically induced*
;
China/epidemiology*
;
Anticoagulants/adverse effects*
;
Recurrence
5.Effect of the transcription factor SOX4 on the proliferation, migration and apoptosis of ovarian granulosa cells
Mengmeng Fan ; Cong Li ; Xue Liang ; Wanqiu Zhang ; Huiping Wang ; Zhimin Zhai
Acta Universitatis Medicinalis Anhui 2023;58(10):1646-1651
Objective :
To investigate the impact of SOX4 on ovarian granulosa cells,stable overexpression of SOX4 was achieved in human KGN cell line,followed by analysis of its effects on proliferation,migration and apoptosis.
Methods :
The recombinant lentiviral plasmid pLV-EF1a-GFP / Puro-SOX4 was generated through homologous recombination with linearized pLV-EF1a-GFP / Puro vector.Human ovarian granulosa cells ( KGN cell line ) were transduced with Lentiviral expression vectors.KGN cells infected with pLV-EF1a-GFP / Puro-NC were served as the LV-CON group,while those infected with pLV-EF1a-GFP / Puro-SOX4 were designated as the LV-SOX4 group.Following transfection,puromycin selection was employed to establish stable SOX4-expressing KGN cells.The expres- sion levels of SOX4 m RNA and protein in KGN cells from the LV-CON and LV-SOX4 groups were assessed using RT-qPCR and Western blot analysis.Cell proliferation was assessed using the CCK-8 assay in both LV-CON and LV-SOX4 groups.Cell migration ability was evaluated by means of a cell scratch test in these two groups.The proportion of apoptotic cells was determined via flow cytometry analysis in both LV-CON and LV-SOX4 groups.
Results:
The sequencing results of pLV-EF1a-GFP / Puro-SOX4 indicated a complete match between the inserted gene se- quence and the SOX4 mRNA sequence.The lentiviral titers were 7 × 108 TU / ml in the LV-CON group and 1 × 108 TU / ml in the LV-SOX4 group.The recombinant plasmid was successfully transfected into KGN cells with a transfection efficiency of over 90% under fluorescence inverted microscopy.The results of RT-qPCR and Western blot tests demonstrated a significant increase in the expression level of SOX4 in KGN cells of LV-SOX4 group compared to that of LV-CON group (t = 3. 10,P <0. 05 ; t = 14. 20,P <0. 05) .The CCK-8 assay results demonstrated that the LV-SOX4 group exhibited a significant increase in cell proliferation (24 h : t = 45. 92,P<0. 01 ; 72 h : t = 25. 60,P <0. 01) compared to the LV-CON group.The cell scratch assay indicated that the migratory capacity of KGN cells in the LV-SOX4 group was significantly enhanced (t = 7. 65,P <0. 01) compared to that in the LV-CON group. The LV-SOX4 group exhibited a significant reduction in apoptosis ratio (t = 25. 84,P<0. 01) compared to the LV- CON group.
Conclusion
SOX4-overexpressing KGN cell line was successfully established,and the overexpression of SOX4 facilitated proliferation and migration while inhibiting apoptosis in human ovarian granulosa cells.
6.Gut microbiota-based pharmacokinetic-pharmacodynamic study and molecular mechanism of specnuezhenide in the treatment of colorectal cancer targeting carboxylesterase
Hang YU ; Hui XU ; Xinyu YANG ; Zhengwei ZHANG ; Jiachun HU ; Jinyue LU ; Jie FU ; Mengmeng BU ; Haojian ZHANG ; Zhao ZHAI ; Jingyue WANG ; Jiandong JIANG ; Yan WANG
Journal of Pharmaceutical Analysis 2023;13(9):1024-1040
Specnuezhenide(SNZ)is among the main components of Fructus Ligustri Lucidi,which has anti-inflammation,anti-oxidation,and anti-tumor effect.The low bioavailability makes it difficult to explain the mechanism of pharmacological effect of SNZ.In this study,the role of the gut microbiota in the metabolism and pharmacokinetics characteristics of SNZ as well as the pharmacological meaning were explored.SNZ can be rapidly metabolized by the gut microbiome,and two intestinal bacterial metabolites of SNZ,salidroside and tyrosol,were discovered.In addition,carboxylesterase may be the main intestinal bacterial enzyme that mediates its metabolism.At the same time,no metabolism was found in the incubation system of SNZ with liver microsomes or liver homogenate,indicating that the gut microbiota is the main part involved in the metabolism of SNZ.In addition,pharmacokinetic studies showed that salidroside and tyrosol can be detected in plasma in the presence of gut microbiota.Interestingly,tumor development was inhibited in a colorectal tumor mice model administered orally with SNZ,which indicated that SNZ exhibited potential to inhibit tumor growth,and tissue distribution studies showed that salidroside and tyrosol could be distributed in tumor tissues.At the same time,SNZ modulated the structure of gut microbiota and fungal group,which may be the mechanism governing the antitumoral activity of SNZ.Furthermore,SNZ stimulates the secretion of short-chain fatty acids by intestinal flora in vitro and in vivo.In the future,targeting gut microbes and the interaction between natural products and gut microbes could lead to the discovery and development of new drugs.
7.Study on the risk signal mining related to brigatinib based on the US FDA Adverse Event Reporting System
Zhonghua FU ; Zihan GUO ; Mengmeng WANG ; Qiong DU ; Qing ZHAI
Adverse Drug Reactions Journal 2023;25(1):34-39
Objective:To explore the risk signals of brigatinib-related adverse events (AEs) and provide reference for the safe use in clinical practice.Methods:The US FDA Adverse Event Reporting System database was searched and AE reports on brigatinib as the primary suspect drug from April 1, 2017 to March 31, 2022 were collected. AEs were standardized and classified according to the preferred terms (PT) and system organ class (SOC) of Medical Dictionary for Regulatory Activities 24.0. Reported odds ratio ( ROR) and proportional reporting odds ratio ( PRR) methods were used to mine the AE risk signals of brigatinib. An AE with reports ≥3, ROR≥2, 95% confidence interval ( CI) lower limit of ROR>1, or reports ≥3, PRR≥2, and χ2>4 was defined as a positive signal. Positive PT signals were analyzed using descriptive method. Results:A total of 1 564 AE reports were included in the analysis, involving 672 PTs. After analysis using ROR and PRR methods, 52 PTs with positive risk signals were obtained, involving 16 SOCs. The top 10 PTs in report amount were fatigue, diarrhea, nausea, cough, abnormal serum creatine phosphokinase, dyspnea, headache, rash, vomiting, and hypertension, all of which were common AEs in the instructions. The top 10 PTs in signal intensity were pituitary infarction, radiation necrosis, elevated amylase, esophageal varices, early saturation, elevated lipase, abnormal serum creatine phosphokinase, pulmonary toxicity, prolonged activated partial thromboplastin time, and photosensitivity. Among them, the PTs ranked 1st, 2nd, 4th, 5th, 8th, and 10th were not recorded in the label. Pneumonia and interstitial lung disease (ILD) were serious AEs, with 31 and 8 reports, respectively. In the 52 PTs, 28 were not included in the drug label, involving 12 SOCs. Conclusions:The main adverse reactions of brigatinib were diarrhea, nausea, cough, and abnormal serum creatine phosphokinase and serious adverse reactions such as pneumonia and ILD were both reported, which were consistent with the common AE recorded in the drug label. In addition, brigatinib might cause pituitary infarction, radiation necrosis, pulmonary toxicity, photosensitivity, etc., which should be vigilant in clinical practice.
8.Research progress in ocular toxicities associated with dual target therapy of dabrafenib and trametinib
Shuohan HUANG ; Mengmeng WANG ; Xuan YE ; Zihan GUO ; Han SHAN ; Qing ZHAI ; Jiyong LIU ; Qiong DU
Adverse Drug Reactions Journal 2023;25(5):308-314
Dual target therapy of dabrafenib combined with trametinib (DabTram) plays an important role in the treatment of malignancies. Ocular toxicities are adverse reactions which are relatively uncommon but potentially serious in DabTram treatment. At present, there is a lack of systematic research on ocular toxicities caused by DabTram, leading to insufficient understanding of this problem. In this paper, the literature on DabTram-related ocular toxicities are systematically reviewed, especially focusing on the incidence, clinical characteristics, mechanisms of occurrence, therapeutic measures and so on, and the corresponding management pathways in clinical medication were proposed to provide references for safe use of DabTram in clinic.
9.Study on the risk signal mining related to brigatinib based on the US FDA Adverse Event Reporting System
Zhonghua FU ; Zihan GUO ; Mengmeng WANG ; Qiong DU ; Qing ZHAI
Adverse Drug Reactions Journal 2023;25(1):34-39
Objective:To explore the risk signals of brigatinib-related adverse events (AEs) and provide reference for the safe use in clinical practice.Methods:The US FDA Adverse Event Reporting System database was searched and AE reports on brigatinib as the primary suspect drug from April 1, 2017 to March 31, 2022 were collected. AEs were standardized and classified according to the preferred terms (PT) and system organ class (SOC) of Medical Dictionary for Regulatory Activities 24.0. Reported odds ratio ( ROR) and proportional reporting odds ratio ( PRR) methods were used to mine the AE risk signals of brigatinib. An AE with reports ≥3, ROR≥2, 95% confidence interval ( CI) lower limit of ROR>1, or reports ≥3, PRR≥2, and χ2>4 was defined as a positive signal. Positive PT signals were analyzed using descriptive method. Results:A total of 1 564 AE reports were included in the analysis, involving 672 PTs. After analysis using ROR and PRR methods, 52 PTs with positive risk signals were obtained, involving 16 SOCs. The top 10 PTs in report amount were fatigue, diarrhea, nausea, cough, abnormal serum creatine phosphokinase, dyspnea, headache, rash, vomiting, and hypertension, all of which were common AEs in the instructions. The top 10 PTs in signal intensity were pituitary infarction, radiation necrosis, elevated amylase, esophageal varices, early saturation, elevated lipase, abnormal serum creatine phosphokinase, pulmonary toxicity, prolonged activated partial thromboplastin time, and photosensitivity. Among them, the PTs ranked 1st, 2nd, 4th, 5th, 8th, and 10th were not recorded in the label. Pneumonia and interstitial lung disease (ILD) were serious AEs, with 31 and 8 reports, respectively. In the 52 PTs, 28 were not included in the drug label, involving 12 SOCs. Conclusions:The main adverse reactions of brigatinib were diarrhea, nausea, cough, and abnormal serum creatine phosphokinase and serious adverse reactions such as pneumonia and ILD were both reported, which were consistent with the common AE recorded in the drug label. In addition, brigatinib might cause pituitary infarction, radiation necrosis, pulmonary toxicity, photosensitivity, etc., which should be vigilant in clinical practice.
10.Research progress in ocular toxicities associated with dual target therapy of dabrafenib and trametinib
Shuohan HUANG ; Mengmeng WANG ; Xuan YE ; Zihan GUO ; Han SHAN ; Qing ZHAI ; Jiyong LIU ; Qiong DU
Adverse Drug Reactions Journal 2023;25(5):308-314
Dual target therapy of dabrafenib combined with trametinib (DabTram) plays an important role in the treatment of malignancies. Ocular toxicities are adverse reactions which are relatively uncommon but potentially serious in DabTram treatment. At present, there is a lack of systematic research on ocular toxicities caused by DabTram, leading to insufficient understanding of this problem. In this paper, the literature on DabTram-related ocular toxicities are systematically reviewed, especially focusing on the incidence, clinical characteristics, mechanisms of occurrence, therapeutic measures and so on, and the corresponding management pathways in clinical medication were proposed to provide references for safe use of DabTram in clinic.


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