1.Orally deliverable biomimetic nucleic acid therapies for targeted treatment of atherosclerosis.
Chenwen LI ; Yidan CHEN ; Yuan LI ; Huan LIU ; Shengqian YANG ; Yongyao LIN ; Yuantong QI ; Songling HAN ; Yin DOU ; Gaoxing LUO ; Yingxue HAO ; Jianxiang ZHANG
Acta Pharmaceutica Sinica B 2025;15(11):6052-6069
Accumulating evidence has demonstrated that nucleic acid-based therapies are promising for atherosclerosis. However, nearly all nucleic acid delivery systems developed for atherosclerosis necessitate injection, which results in rapid elimination and poor patient compliance. Consequently, oral delivery strategies capable of targeting atherosclerotic plaques are imperative for nucleic acid therapeutics. Herein we report the development of yeast-derived capsules (YCs) packaging an antisense oligonucleotide (AM33) targeting microRNA-33 (miR-33) for the oral treatment of atherosclerosis. YCs provide stability for AM33, preventing its premature release in the gastrointestinal tract. AM33-containing YCs, defined as YAM33, showed high transfection in macrophages, thus promoting cholesterol efflux and inhibiting foam cell formation by regulating the target genes/proteins of miR-33. Orally delivered YAM33 effectively accumulated within atherosclerotic plaques in ApoE -/- mice, primarily by transepithelial absorption via M cells in Peyer's patches and subsequent translocation via macrophages through the lymphatic system. Inhibition of miR-33 by oral YAM33 significantly delayed the progression of atherosclerosis. Moreover, oral treatment with YCs co-delivering AM33 and atorvastatin afforded significantly enhanced anti-atherosclerotic effects. Our findings suggest that yeast-based microcapsules represent an effective carrier for oral delivery of nucleic acids, either alone or in combination with existing drugs, offering a promising approach for precision therapy of atherosclerotic diseases.
2.Anaphase-promoting complex subunit 10 promotes hepatocellular carcinoma progression through regulation of the PI3K-AKT-mTOR signaling pathway
Zijun ZHU ; Yife QIAN ; Qianyu LI ; Songling LI ; Wenli QIN ; Yanfeng LIU
Journal of Shanghai Jiaotong University(Medical Science) 2025;45(9):1171-1182
Objective·To explore the biological functions and underlying mechanisms of anaphase-promoting complex subunit 10(ANAPC10)in the development and progression of liver hepatocellular carcinoma(LIHC,often abbreviated as HCC).Methods·By integrating data from The Cancer Genome Atlas(TCGA)_LIHC,the hepatitis B virus-related subgroup(HBV)of the China Hepatocellular Carcinoma Genome Project(CHCC),and the Gene Expression Omnibus(GEO),the expression pattern of ANAPC10 in HCC was analyzed.Western blotting and quantitative real-time PCR(q-PCR)were used to verify the findings in HCC cell lines.shRNA-mediated knockdown of ANAPC10 was performed in MHCC-97H and SNU-398 cell lines to investigate the effect of ANAPC10 depletion on the in vitro proliferation of HCC cells.An orthotopic liver cancer model with Anapc10 knockout was constructed using the hydrodynamic tail-vein injection technique in mice to further confirm the impact of ANAPC10 deficiency in the liver on the development and progression of HCC.Kyoto Encyclopedia of Genes and Genomes(KEGG)and Gene Ontology(GO)enrichment analyses were performed on the RNA-sequencing data from TCGA_LIHC and CHCC_HBV.Results·ANAPC10 was highly expressed in tumor tissues,and its expression level was closely related to patient survival.Downregulation of ANAPC10 in vitro and in vivo effectively inhibited HCC progression.ANAPC10 mainly reprogrammed the metabolism of tumors by affecting the PI3K-AKT-mTOR pathway.In the tumor tissues of the orthotopic liver cancer mouse model in the Anapc10 knockout group,the phosphorylation levels of Akt and S6k were decreased,and changes in the key downstream lipid metabolism proteins Fasn and Scd1 were verified.Conclusion·ANAPC10 is highly expressed in HCC and is positively correlated with poor prognosis.It promotes HCC occurrence and progression by activating the PI3K-AKT-mTOR signaling pathway and enhancing lipid metabolism reprogramming,thereby promoting tumor cell proliferation.These findings expand the understanding of ANAPC10 in tumor progression and suggest potential therapeutic targets for HCC.
3.Efficacy and safety of dose-optimization strategies for CDK4/6 inhibitors in HR+/HER2-advanced breast cancer:a Meta-analysis
Yating ZHENG ; Songling LIU ; Liyan ZHOU
Chinese Journal of Pharmacoepidemiology 2025;34(7):795-805
Objective To systematically review the efficacy and safety of reduced versus standard doses of CDK4/6 inhibitors in patients with HR+/HER2-advanced breast cancer.Methods PubMed,Web of Science,Cochrane Library,Embase,CNKI,WanFang Data,VIP,databases were electronically searched to collect randomized controlled trials(RCTs)on HR+/HER2-advanced breast cancer patients treated with reduction of CDK4/6 inhibitor dose and standard dose from inception to April 1,2025.Two reviewers independently screened the literature,extracted data,and assessed the risk of bias of the included studies.Meta-analysis was performed using RevMan 5.1 software.Results A total of 14 RCTs involving 4,958 patients were included.The results of Meta-analysis showed that there was no statistically significant difference in PFS[HR=1.01,95%CI(0.92,1.11),P=0.81]and OS[HR=0.78,95%CI(0.52,1.18),P=0.25]in the dose-reduced group and the standard dose group,while ORR[RR=0.83,95%CI(0.71,0.96),P=0.01]and incidence of grade 3 and above neutropenia[RR=0.42,95%CI(0.21,0.85),P=0.02]in the dose-reduced group were significantly better than those in the standard dose group.Conclusions Current evidence shows that the dose reduction of CDK4/6 inhibitors can considerably reduce the incidence of grade 3 and above neutropenia without affecting PFS and OS.
4.Anaphase-promoting complex subunit 10 promotes hepatocellular carcinoma progression through regulation of the PI3K-AKT-mTOR signaling pathway
Zijun ZHU ; Yife QIAN ; Qianyu LI ; Songling LI ; Wenli QIN ; Yanfeng LIU
Journal of Shanghai Jiaotong University(Medical Science) 2025;45(9):1171-1182
Objective·To explore the biological functions and underlying mechanisms of anaphase-promoting complex subunit 10(ANAPC10)in the development and progression of liver hepatocellular carcinoma(LIHC,often abbreviated as HCC).Methods·By integrating data from The Cancer Genome Atlas(TCGA)_LIHC,the hepatitis B virus-related subgroup(HBV)of the China Hepatocellular Carcinoma Genome Project(CHCC),and the Gene Expression Omnibus(GEO),the expression pattern of ANAPC10 in HCC was analyzed.Western blotting and quantitative real-time PCR(q-PCR)were used to verify the findings in HCC cell lines.shRNA-mediated knockdown of ANAPC10 was performed in MHCC-97H and SNU-398 cell lines to investigate the effect of ANAPC10 depletion on the in vitro proliferation of HCC cells.An orthotopic liver cancer model with Anapc10 knockout was constructed using the hydrodynamic tail-vein injection technique in mice to further confirm the impact of ANAPC10 deficiency in the liver on the development and progression of HCC.Kyoto Encyclopedia of Genes and Genomes(KEGG)and Gene Ontology(GO)enrichment analyses were performed on the RNA-sequencing data from TCGA_LIHC and CHCC_HBV.Results·ANAPC10 was highly expressed in tumor tissues,and its expression level was closely related to patient survival.Downregulation of ANAPC10 in vitro and in vivo effectively inhibited HCC progression.ANAPC10 mainly reprogrammed the metabolism of tumors by affecting the PI3K-AKT-mTOR pathway.In the tumor tissues of the orthotopic liver cancer mouse model in the Anapc10 knockout group,the phosphorylation levels of Akt and S6k were decreased,and changes in the key downstream lipid metabolism proteins Fasn and Scd1 were verified.Conclusion·ANAPC10 is highly expressed in HCC and is positively correlated with poor prognosis.It promotes HCC occurrence and progression by activating the PI3K-AKT-mTOR signaling pathway and enhancing lipid metabolism reprogramming,thereby promoting tumor cell proliferation.These findings expand the understanding of ANAPC10 in tumor progression and suggest potential therapeutic targets for HCC.
5.Function and mechanism of suppressor of zeste 12 in hepatocellular carcinoma
Qianyu LI ; Yifei QIAN ; Songling LI ; Zijun ZHU ; Wenli QIN ; Yanfeng LIU ; Bijun QIU
Journal of Shanghai Jiaotong University(Medical Science) 2025;45(9):1138-1148
Objective·To explore the function and potential mechanism of suppressor of zeste 12(SUZ12)in hepatocellular carcinoma(HCC).Methods·The expression of SUZ12 in HCC patients was analyzed using R language in liver cancer datasets,and relevant survival curves were drawn.Stable knockdown of SUZ12 was established in the liver cancer cell lines LM3 and Huh7.The knockdown efficiency of SUZ12 was assessed using quantitative real-time PCR(qPCR)and Western blotting.Cell proliferation ability was assessed using CCK-8 assay and colony formation assay.Using the hydrodynamic tail vein injection(HTVI)method,Suz12 was knocked out in the livers of fully immunocompetent mice to explore its tumorigenic function in vivo.The molecular mechanism of SUZ12 regulating HCC was explored using The Cancer Genome Atlas(TCGA)database.R language was used to analyze the relationship between SUZ12 and the expression of cancer stem cell(CSC)markers as well as key glycolysis-related genes.Findings were validated in liver cancer cell lines and mouse tumor tissues.Results·The expression of SUZ12 in liver cancer tissues was higher than in adjacent non-tumor tissues,and its expression increased with higher tumor stage.HCC patients with high SUZ12 expression had poorer prognoses.In LM3 and Huh7 liver cancer cell lines,stable knockdown of SUZ12 reduced cell proliferation ability.In the de novo MYC/Trp53-/-mouse liver cancer model,tumor nodule number and size,and tumor burden in liver tissue were reduced after endogenous knockout of Suz12.TCGA analysis showed that high SUZ12 expression in HCC was enriched in multiple tumor proliferation-and metabolism-related pathways.The expression of SUZ12 was positively correlated with CSC markers and key genes in glycolysis pathway.The mRNA levels of CSC markers and key genes in glycolysis pathway were decreased in liver cancer cell lines with stable SUZ12 knockdown and Suz12 knockout mouse HCC tissues.Conclusion·The expression of SUZ12 is significantly increased in HCC patients and is associated with poor prognosis.Stable knockdown of SUZ12 weakens the proliferative ability of liver cancer cells.Knockout of Suz12 in mice in vivo can suppress the occurrence and development of HCC.The high expression of SUZ12 maintains the CSC pool,induces metabolic reprogramming,and promotes the occurrence and progression of HCC.SUZ12 can serve as a potential biomarker for poor prognosis and a novel target for potential therapeutic intervention in HCC.
6.Efficacy and safety of dose-optimization strategies for CDK4/6 inhibitors in HR+/HER2-advanced breast cancer:a Meta-analysis
Yating ZHENG ; Songling LIU ; Liyan ZHOU
Chinese Journal of Pharmacoepidemiology 2025;34(7):795-805
Objective To systematically review the efficacy and safety of reduced versus standard doses of CDK4/6 inhibitors in patients with HR+/HER2-advanced breast cancer.Methods PubMed,Web of Science,Cochrane Library,Embase,CNKI,WanFang Data,VIP,databases were electronically searched to collect randomized controlled trials(RCTs)on HR+/HER2-advanced breast cancer patients treated with reduction of CDK4/6 inhibitor dose and standard dose from inception to April 1,2025.Two reviewers independently screened the literature,extracted data,and assessed the risk of bias of the included studies.Meta-analysis was performed using RevMan 5.1 software.Results A total of 14 RCTs involving 4,958 patients were included.The results of Meta-analysis showed that there was no statistically significant difference in PFS[HR=1.01,95%CI(0.92,1.11),P=0.81]and OS[HR=0.78,95%CI(0.52,1.18),P=0.25]in the dose-reduced group and the standard dose group,while ORR[RR=0.83,95%CI(0.71,0.96),P=0.01]and incidence of grade 3 and above neutropenia[RR=0.42,95%CI(0.21,0.85),P=0.02]in the dose-reduced group were significantly better than those in the standard dose group.Conclusions Current evidence shows that the dose reduction of CDK4/6 inhibitors can considerably reduce the incidence of grade 3 and above neutropenia without affecting PFS and OS.
7.Function and mechanism of suppressor of zeste 12 in hepatocellular carcinoma
Qianyu LI ; Yifei QIAN ; Songling LI ; Zijun ZHU ; Wenli QIN ; Yanfeng LIU ; Bijun QIU
Journal of Shanghai Jiaotong University(Medical Science) 2025;45(9):1138-1148
Objective·To explore the function and potential mechanism of suppressor of zeste 12(SUZ12)in hepatocellular carcinoma(HCC).Methods·The expression of SUZ12 in HCC patients was analyzed using R language in liver cancer datasets,and relevant survival curves were drawn.Stable knockdown of SUZ12 was established in the liver cancer cell lines LM3 and Huh7.The knockdown efficiency of SUZ12 was assessed using quantitative real-time PCR(qPCR)and Western blotting.Cell proliferation ability was assessed using CCK-8 assay and colony formation assay.Using the hydrodynamic tail vein injection(HTVI)method,Suz12 was knocked out in the livers of fully immunocompetent mice to explore its tumorigenic function in vivo.The molecular mechanism of SUZ12 regulating HCC was explored using The Cancer Genome Atlas(TCGA)database.R language was used to analyze the relationship between SUZ12 and the expression of cancer stem cell(CSC)markers as well as key glycolysis-related genes.Findings were validated in liver cancer cell lines and mouse tumor tissues.Results·The expression of SUZ12 in liver cancer tissues was higher than in adjacent non-tumor tissues,and its expression increased with higher tumor stage.HCC patients with high SUZ12 expression had poorer prognoses.In LM3 and Huh7 liver cancer cell lines,stable knockdown of SUZ12 reduced cell proliferation ability.In the de novo MYC/Trp53-/-mouse liver cancer model,tumor nodule number and size,and tumor burden in liver tissue were reduced after endogenous knockout of Suz12.TCGA analysis showed that high SUZ12 expression in HCC was enriched in multiple tumor proliferation-and metabolism-related pathways.The expression of SUZ12 was positively correlated with CSC markers and key genes in glycolysis pathway.The mRNA levels of CSC markers and key genes in glycolysis pathway were decreased in liver cancer cell lines with stable SUZ12 knockdown and Suz12 knockout mouse HCC tissues.Conclusion·The expression of SUZ12 is significantly increased in HCC patients and is associated with poor prognosis.Stable knockdown of SUZ12 weakens the proliferative ability of liver cancer cells.Knockout of Suz12 in mice in vivo can suppress the occurrence and development of HCC.The high expression of SUZ12 maintains the CSC pool,induces metabolic reprogramming,and promotes the occurrence and progression of HCC.SUZ12 can serve as a potential biomarker for poor prognosis and a novel target for potential therapeutic intervention in HCC.
8.Prenatal ultrasonic manifestations of fetal rhomboencephalosynapsis
Xinxia WANG ; Hezhou LI ; Ming WANG ; Yanhui DONG ; Ruizheng HAN ; Ling LIU ; Songling XU
Chinese Journal of Medical Imaging Technology 2024;40(11):1642-1646
Objective To observe prenatal ultrasonic manifestations of fetal rhomboencephalosynapsis(RES).Methods Data of 15 singletons with RES were retrospectively analyzed,and the prenatal intracranial and extracranial ultrasonic manifestations were observed.Results All 15 fetuses were found with transverse cerebellar diameter lower than the 3rd percentile of normal value in the same gestational week and bilateral cerebellar hemisphere fusion(15/15,100%).Cerebellar vermis completely loss was observed in 14 fetuses(14/15,93.33%),while partially loss was noticed in 1 fetus(1/15,6.67%).Invisible of the fourth cerebral ventricle was detected in 4 fetuses(4/15,26.67%),while the fourth cerebral ventricular index(4Vi)<1 was found in 11 fetuses(11/15,73.33%).No"split line"sign between vermis and cerebellar hemisphere was detected.A total of 14(14/15,93.33%)were found with combining intracranial or extracranial malformations,including 13(13/14,92.86%)with other intracranial malformations,10(10/14,71.43%)with extracranial malformations,whereas 1(1/15,6.67%)fetus had no other malformation.Conclusion Prenatal ultrasonic manifestations of fetal RES mainly included small cerebellum transverse diameter,complete or partial loss of vermis,invisible or dysplasia of the fourth cerebral ventricle,fusion of bilateral cerebellar hemispheres,as well as combining with other intracranial and extracranial malformations.
9.Dysfunctional Mitochondria Clearance in Situ: Mitophagy in Obesity and Diabetes-Associated Cardiometabolic Diseases
Songling TANG ; Di HAO ; Wen MA ; Lian LIU ; Jiuyu GAO ; Peng YAO ; Haifang YU ; Lu GAN ; Yu CAO
Diabetes & Metabolism Journal 2024;48(4):503-517
Several mitochondrial dysfunctions in obesity and diabetes include impaired mitochondrial membrane potential, excessive mitochondrial reactive oxygen species generation, reduced mitochondrial DNA, increased mitochondrial Ca2+ flux, and mitochondrial dynamics disorders. Mitophagy, specialized autophagy, is responsible for clearing dysfunctional mitochondria in physiological and pathological conditions. As a paradox, inhibition and activation of mitophagy have been observed in obesity and diabetes-related heart disorders, with both exerting bidirectional effects. Suppressed mitophagy is beneficial to mitochondrial homeostasis, also known as benign mitophagy. On the contrary, in most cases, excessive mitophagy is harmful to dysfunctional mitochondria elimination and thus is defined as detrimental mitophagy. In obesity and diabetes, two classical pathways appear to regulate mitophagy, including PTEN-induced putative kinase 1 (PINK1)/Parkin-dependent mitophagy and receptors/adapters-dependent mitophagy. After the pharmacologic interventions of mitophagy, mitochondrial morphology and function have been restored, and cell viability has been further improved. Herein, we summarize the mitochondrial dysfunction and mitophagy alterations in obesity and diabetes, as well as the underlying upstream mechanisms, in order to provide novel therapeutic strategies for the obesity and diabetes-related heart disorders.
10.Anti-PD-L1 antibody enhances curative effect of cryoablation via antibody-dependent cell-mediated cytotoxicity mediating PD-L1highCD11b+ cells elimination in hepatocellular carcinoma.
Jizhou TAN ; Ting LIU ; Wenzhe FAN ; Jialiang WEI ; Bowen ZHU ; Yafang LIU ; Lingwei LIU ; Xiaokai ZHANG ; Songling CHEN ; Haibiao LIN ; Yuanqing ZHANG ; Jiaping LI
Acta Pharmaceutica Sinica B 2023;13(2):632-647
Cryoablation (CRA) and microwave ablation (MWA) are two main local treatments for hepatocellular carcinoma (HCC). However, which one is more curative and suitable for combining with immunotherapy is still controversial. Herein, CRA induced higher tumoral PD-L1 expression and more T cells infiltration, but less PD-L1highCD11b+ myeloid cells infiltration than MWA in HCC. Furthermore, CRA had better curative effect than MWA for anti-PD-L1 combination therapy in mouse models. Mechanistically, anti-PD-L1 antibody facilitated infiltration of CD8+ T cells by enhancing the secretion of CXCL9 from cDC1 cells after CRA therapy. On the other hand, anti-PD-L1 antibody promoted the infiltration of NK cells to eliminate PD-L1highCD11b+ myeloid cells by antibody-dependent cell-mediated cytotoxicity (ADCC) effect after CRA therapy. Both aspects relieved the immunosuppressive microenvironment after CRA therapy. Notably, the wild-type PD-L1 Avelumab (Bavencio), compared to the mutant PD-L1 atezolizumab (Tecentriq), was better at inducing the ADCC effect to target PD-L1highCD11b+ myeloid cells. Collectively, our study uncovered the novel insights that CRA showed superior curative effect than MWA in combining with anti-PD-L1 antibody by strengthening CTL/NK cell immune responses, which provided a strong rationale for combining CRA and PD-L1 blockade in the clinical treatment for HCC.

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