1.The expression of insulin-like growth factor-binding protein related protein 1 (IGFBP-rP1) in children with acute leukemia and its clinical significance
Xiaorui MAN ; Shaoyan HU ; Jiannong CEN ; Zixing CHEN ; Hailong HE ; Jie LI ; Yihuan CHAI
Tumor 2010;(1):53-56
Objective:To explore the expression of insulin-like growth factor-binding protein related protein 1(IGFBP-rP1) gene in children with acute leukemia and its potential significance. Methods:Real-time fluorescence quantitative PCR (RFQ-PCR) method was used for detecting IGFBP-rP1 mRNA expression in bone marrow (BM) cells of 168 children with acute leukemia. The results were compared with those of 30 non-leukemia children in control group. Meanwhile the relationship between IGFBP-rP1 expression level and clinical prognosis was analyzed according to clinical prognostic factors of children acute leukemia. Results:Expression level of IGFBP-rP1 in initial acute leukemia children was significantly higher than that of non leukemia children (P<0.01). It was higher in acute myeloid leukemia (AML) than in acute lymphoblastic leukemia (ALL)(P =0.013). The transcription level of IGFBP-rP1 mRNA in patients who had complete remission (CR) were lowest, which was nearly the same as non-leukemia childish patients. It increased again when leukemia relapsed, which was significantly higher than that in CR. However, as far as ALL was concerned, IGFBP-rP1 expression levels had no significant difference between newly-diagnosed, complete remission, and recurrent groups.Conclusion:IGFBP-rP1 may be involved in the initiation and development of childish leukemia. It has the potential to become a new target for AML treatment.
2.Influences of Lupinol on the Proliferation,Apoptosis and Invasion of Cervical Cancer Cells by Regulating PI3K/AKT/mTOR Pathway-Mediated Autophagy
Xiaorui MAN ; Hongyan XUAN ; Zengyun LI
Journal of Practical Obstetrics and Gynecology 2024;40(2):146-152
Objective:To investigate the influences of lupinol on the proliferation,apoptosis and invasion of cer-vical cancer cells by regulating autophagy mediated by phosphatidylinositol 3-kinase(PI3K)/protein kinase B(AKT)/mammalian target of rapamycin(mTOR)pathway.Methods:The proliferation rate of human cervical cancer cell line HeLa cells treated with 0,10,25,50,70,90 μmol/L lupinol was determined,and the appropriate concentration of lupinol was screened out.HeLa cells cultured in vitro were randomly grouped into control group,low-dose lupinol group,high-dose lupinol group,740 Y-P group(PI3K activator),and high-dose lupinol+740 Y-P group.After group intervention with lupinol and 740 Y-P,MDC fluorescence staining was used to detect the forma-tion of autophagic vacuolation of HeLa cells in each group;western blot was used to detect the expression of au-tophagy and PI3K/AKT/mTOR pathway-related proteins in HeLa cells in each group.HeLa cells cultured in vitro were randomly grouped into control group,low-dose lupinol group,high-dose lupinol group,high-dose lupinol+rapamycin(Rapa),and high-dose lupinol+3-methyladenine(3-MA)group.After the intervention of high dose of lupinol,Rapa and 3-MA,the proliferation of HeLa cells in each group was detected by MTT assay and plate colony formation assay;flow cytometry was used to detect the apoptosis of HeLa cells in each group;transwell assay was used to detect the invasion of HeLa cells in each group;western blot was used to detect the expressions of proliferation,apoptosis and epithelial-mesenchymal transition-related proteins in HeLa cells in each group.Re-sults:Compared with the control group,the relative content of autophagic vacuoles,the protein expressions of Mi-crotubule-associated protein 1A/1 B-light chain 3(LC3)Ⅱ/LC3Ⅰ,and Beclin-1 in the low and high dose lupinol groups were all increased(P<0.05),the phosphorylated PI3K(p-PI3K)/PI3K,phosphorylated AKT(p-AKT)/AKT,and phosphorylated mTOR(p-mTOR)/mTOR decreased(P<0.05);the relative content of autophagic vac-uoles,the protein expressions of LC3Ⅱ/LC3Ⅰ,and Beclin-1 in the high-dose lupinol group were further increased compared with the low-dose lupinol group(P<0.05),the p-PI3K/PI3K,p-AKT/AKT,and p-mTOR/mTOR were further decreased(P<0.05);the relative content of autophagic vacuoles,the protein expressions of LC3Ⅱ/LC3Ⅰ,and Beclin-1 in 740 Y-P group decreased compared with the control group(P<0.05),the p-PI3K/PI3K,p-AKT/AKT,and p-mTOR/mTOR increased(P<0.05).Compared with the high-dose lupinol group,the relative content of autophagic vacuoles,the protein expressions of LC3Ⅱ/LC3Ⅰ,and Beclin-1 in the high-dose lupinol+740 Y-P group decreased(P<0.05),the p-PI3K/PI3K,p-AKT/AKT,and p-mTOR/mTOR increased(P<0.05).Com-pared with the control group,the cell proliferation rate,colony formation rate,invasion number,and the protein ex-pressions of proliferating cell nuclear antigen(PCNA),B cell lymphoma 2(Bcl-2)and Vimentin in the low and high dose groups of lupinol were all decreased(P<0.05),the apoptosis rate,and the protein expressions of Bcl-2 as-sociated x protein(Bax)and zonula occludens protein 1(ZO-1)were all increased(P<0.05);compared with the low-dose lupinol group,the cell proliferation rate,colony formation rate,invasion number,and the protein expres-sions of PCNA,Bcl-2 and Vimentin in the high-dose lupinol group were further decreased(P<0.05),the apopto-sis rate,and the protein expressions of Bax and ZO-1 were further increased(P<0.05).Compared with the high-dose lupinol group,the cell proliferation rate,colony formation rate,invasion number,and the protein expres-sions of PCNA,Bcl-2 and Vimentin in the high-dose lupinol+Rapa group were increased(P<0.05),the apopto-sis rate,and the protein expressions of Bax and ZO-1 were decreased(P<0.05);the cell proliferation rate,colo-ny formation rate,invasion number,and the protein expressions of PCNA,Bcl-2 and Vimentin in the high-dose lu-pinol+3-MA group were decreased(P<0.05),the apoptosis rate,and the protein expressions of Bax and ZO-1 were increased(P<0.05).Conclusions:Lupinol induces protective autophagy by inhibiting the PI3K/AKT/mTOR pathway,thereby promoting the apoptosis of cervical cancer cells and inhibiting their proliferation and inva-sion.Activation of autophagy attenuates the effects of lupinol on the proliferation,apoptosis and invasion of cervi-cal cancer cells.
3.Expert consensus on the workflow of digital aesthetic design in prosthodontics
Zhonghao LIU ; Feng LIU ; Jiang CHEN ; Cui HUANG ; Xianglong HAN ; Wenjie HU ; Chun XU ; Weicai LIU ; Lina NIU ; Chufan MA ; Yijiao ZHAO ; Ke ZHAO ; Ming ZHENG ; Yaming CHEN ; Qingfeng HUANG ; Yi MAN ; Mingming XU ; Xuliang DENG ; Ti ZHOU ; Xiaorui SHI
Journal of Practical Stomatology 2024;40(2):156-163
In the field of dental aesthetics,digital aesthetic design plays a crucial role in helping dentists to predict treatment outcomes vis-ually,as well as in enhancing the consistency of knowledge and understanding of aesthetic goals between dentists and patients.It serves as the foundation for achieving ideal aesthetic effects.However,there is no clear standard for this digital process currently in China and abroad.Many dentists lack of systematic understanding of how to carry out digital aesthetic design for treatment.To establish standardized processes for dental aesthetic design and to improve the homogeneity of treatment outcomes,Chinese Society of Digital Dental Industry(CSD-DI)convened domestic experts in related field to compile this consensus.This article elaborates on the key aspects of digital aesthetic data collection,integration steps,and the digital aesthetic design process.It also formulates a decision tree for dental aesthetics at macro level and outlines corresponding workflows for various clinical scenarios,serving as a reference for clinicians.