1.Expert consensus on clinical application of 177Lu-prostate specific membrane antigen radio-ligand therapy in prostate cancer
Guobing LIU ; Weihai ZHUO ; Yushen GU ; Zhi YANG ; Yue CHEN ; Wei FAN ; Jianming GUO ; Jian TAN ; Xiaohua ZHU ; Li HUO ; Xiaoli LAN ; Biao LI ; Weibing MIAO ; Shaoli SONG ; Hao XU ; Rong TIAN ; Quanyong LUO ; Feng WANG ; Xuemei WANG ; Aimin YANG ; Dong DAI ; Zhiyong DENG ; Jinhua ZHAO ; Xiaoliang CHEN ; Yan FAN ; Zairong GAO ; Xingmin HAN ; Ningyi JIANG ; Anren KUANG ; Yansong LIN ; Fugeng LIU ; Cen LOU ; Xinhui SU ; Lijun TANG ; Hui WANG ; Xinlu WANG ; Fuzhou YANG ; Hui YANG ; Xinming ZHAO ; Bo YANG ; Xiaodong HUANG ; Jiliang CHEN ; Sijin LI ; Jing WANG ; Yaming LI ; Hongcheng SHI
Chinese Journal of Clinical Medicine 2024;31(5):844-850,封3
177Lu-prostate specific membrane antigen(PSMA)radio-ligand therapy has been approved abroad for advanced prostate cancer and has been in several clinical trials in China.Based on domestic clinical practice and experimental data and referred to international experience and viewpoints,the expert group forms a consensus on the clinical application of 177Lu-PSMA radio-ligand therapy in prostate cancer to guide clinical practice.
2.The intervention effects of naringin on oral squamous cell carcinoma cells
Zhi TAN ; Ping LIU ; Li SHEN ; Jing YANG ; Hao ZHANG ; Song QING
Journal of Practical Stomatology 2024;40(3):344-350
Objective:To investigate the effects of naringin(NRG)on apoptosis,proliferation,migration and invasion of oral squa-mous cell carcinoma(OSCC)cells.Methods:NRG of 0,5,10,15,20,25 and 30 μmol/L was respectively used to treat OSCC CAL-27 cells,and CCK-8 assay was used to cell vitality.CAL-27 cells were divided into low,medium and high dose NRG groups(NRG-L,NRG-M and NRG-H),Compound C(AMPK inhibitor)group,NRG-H+Compound C group,and control group(NC group,normal cul-ture).Cell proliferation,apoptosis,migration and invasion were detected by CCK-8 assay,EdU staining,flow cytometry,scratch and Tr-answell assays.The expression of aspartate specific cysteine proteinase-3(Caspase-3),proliferating cell nuclear antigen(PCNA),matrix metalloproteinase-2(MMP-2),MMP-9,p-AMPK,sirtuin 1(SIRT1)and acetylated NF-κB p65(Ac-NF-κB p65)was detected by Western blot.Results:5,10 and 20 μmol/L NRG was selected as the low,medium and high dose for the treatment of CAL-27 cells,re-spectively.Compared with NC group,in NRG-L,NRG-M and NRG-H groups EdU positive rate,scratch healing rate,A450 value,num-ber of invasive cells,the protein expression of PCNA,MMP-2,MMP-9 and Ac-NF-κB p65 in CAL-27 cells decreased,the apoptosis rate,and the protein of Caspase-3,p-AMPK,and SIRT1 increased(P<0.05);in Compound C group EdU positive rate,scratch healing rate,A450 value,the number of invasive cells,the protein expression of PCNA,MMP-2,MMP-9 and Ac-NF-κB p65 in CAL-27 cells in-creased,apoptosis rate and the protein expression of Caspase-3,p-AMPK and SIRT1 decreased(P<0.05).Compound C reversed the effects of high dose NRG on the proliferation,migration,apoptosis and invasion of CAL-27 cells.Conclusion:The inhibitory effects of NRG on proliferation,migration and invasion of CAL-27 cells and the promotion of apoptosis may be related to activation of AMPK and inhibition of NF-κB pathway.
3.Molecular characterization of Plasmodium ovale curtisi and Plasmodium ovale wallikeri imported cases in Chongqing
Yan TAN ; Fei LUO ; Zhi-Feng LI ; Yao XIANG ; Jing-Ru XU ; Jiao-Jiao CAI ; Ying-Li LI
Chinese Journal of Zoonoses 2024;40(9):814-822
This study was aimed at understanding the molecular characteristics of Plasmodium ovale curtisi and Plasmodi-um ovale wallikeri imported cases in Chongqing,to provide data to support monitoring and control efforts.In a retrospective analysis,26 Plasmodium ovale archival blood samples were characterized with respect to five molecular markers(Cox1,Cytb,Tra,Dhfr,and K13)from 2013 to 2023.PCR amplification of partial fragments of the Cox1,Cytb,and Tra genes of Plas-modium ovale was performed to distinguish the two subspecies.The drug-resistance Dhfr and K13 genes of Plasmodium ovale were amplified with PCR assays followed by DNA sequencing,and the sequences were aligned.The differentiation of 26 cases of Plasmodium ovale(14 cases of curtisi subspecies and 12 cases of wallikeri subspecies)according to ssrRNA was consistent with the classification results of Cox1,Cytb,and TRA genes.Thirteen single nucleotide dimorphism sites were identified in Cox 1,including the 145 and 153 loci,with only variations in amino acids M176I and I288V at loci 528 and 862,and N337H mutation in one sample.Twelve base substitutions were found among Cytb gene subspecies,with only the M248I mutation in amino acid 248.A total of 49 nucleotide dimorphism sites in Tra gene,resulting in 18 amino acid mutations,were identified be-tween the two subspecies.In the curtisi type sample,the poc1 type had more PINTINPINTIN and TITPIS amino acid units than the poc2 type.The mutation rate of the Dhfr gene was rel-atively high:25%of the samples showed S58R mutations.The K13 gene subspecies was not homozygous,and one sample was heterozygous.This study confirmed the dimorphism and mutation sites between Plasmodium ovale curtisi and wallikeri sub-species in Cox1,Cytb,Tra,Dhfr,and K13 gene fragments of imported Plasmodium ovale in Chongqing,thus enriching knowledge regarding gene polymorphisms in Plasmodium ovale curtisi and wallikeri imported cases.
4.Systematic Analysis of Histone Post-translational Modifications in Macrophages Regulated by Quercetin Based on Super-SILAC
Zhi-Qing LIU ; Lin-Hui ZHAI ; Jing JI ; Min-Jia TAN ; Ping LIU
Chinese Journal of Biochemistry and Molecular Biology 2024;40(11):1574-1584
Quercetin (Que) is a flavonoid compound widely distributed in nature with various biological activities.Its anti-inflammatory effect plays a crucial role in many diseases,closely related to its regula-tion of histone post-translational modifications.However,there have been no detailed reports on the anti-inflammatory effects of quercetin regulating histone post-translational modifications.In this study,we first investigated the effect of quercetin on the M1 macrophages polarization.The results showed that quercetin can significantly down-regulate the levels of interleukin-1β(IL-1β) and interleukin-6 (IL-6 ) in M1 macrophages.Next,we used the super stable isotope labeling by amino acids in cell culture (super-SI-LAC) method derived from SILAC technology based on mass spectrometry to systematically analyze the post-translational modification levels of histone in macrophages treated with quercetin.A total of 30 his-tone modification sites were quantified,of which 12 histone lysine acetylation marks were significantly downregulated and 4 lysine methylation sites were upregulated (fold change>1.2,P<0.05),and some sites were verified by Western blot (WB),which was consistent with the mass spectrometry results.In conclusion,a comprehensive analysis of quercetin on regulating macrophage histone modifications in this study provides reliable data references and new insights for studying its anti-inflammatory mechanism.
5.Visual Detection of Vibrio parahaemolyticus using Combined CRISPR/Cas12a and Recombinase Polymerase Amplification.
Han Ji JIANG ; Rong TAN ; Min JIN ; Jing YIN ; Zhi Xian GAO ; Hai Bei LI ; Dan Yang SHI ; Shu Qing ZHOU ; Tian Jiao CHEN ; Dong YANG ; Jun Wen LI
Biomedical and Environmental Sciences 2022;35(6):518-527
Objective:
To establish an ultra-sensitive, ultra-fast, visible detection method for Vibrio parahaemolyticus (VP) .
Methods:
We established a new method for detecting the tdh and trh genes of VP using clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 12a (CRISPR/Cas12a) combined with recombinase polymerase amplification and visual detection (CRISPR/Cas12a-VD).
Results:
CRISPR/Cas12a-VD accurately detected target DNA at concentrations as low as 10 -18 M (single molecule detection) within 30 min without cross-reactivity against other bacteria. When detecting pure cultures of VP, the consistency of results reached 100% compared with real-time PCR. The method accurately analysed pure cultures and spiked shrimp samples at concentrations as low as 10 2 CFU/g.
Conclusion
The novel CRISPR/Cas12a-VD method for detecting VP performed better than traditional detection methods, such as real-time PCR, and has great potential for preventing the spread of pathogens.
CRISPR-Cas Systems
;
Nucleic Acid Amplification Techniques/methods*
;
Recombinases/genetics*
;
Vibrio parahaemolyticus/genetics*
6.Active Components Formulation Developed from Fuzheng Huayu Recipe for Anti-Liver Fibrosis.
Xin SUN ; Ye TAN ; Jing LYU ; Hong-Liang LIU ; Zhi-Min ZHAO ; Cheng-Hai LIU
Chinese journal of integrative medicine 2022;28(6):538-544
OBJECTIVE:
To screen the active components from Fuzheng Huayu Recipe (FZHY) and redesign a new recipe composed of the active components, and validate the effect of active components formulation from FZHY against liver fibrosis.
METHODS:
Thirty-two components from FZHY were evaluated for their activities against liver fibrosis respectively, with 6 kinds of cell models in vitro, including oxidative stressed hepatocyte in L-02, hypoxia injured/proliferative hepatic sinusoidal endothelial cells in SK-HEP-1 and human hepatic sinusoidal endothelial cells (HHSEC), and activated hepatic stellate cell in LX-2. The comprehensive activity of each component against liver fibrosis was scored according to the role of original herbs in FZHY and cell functions in fibrogenesis. Totally 7 active components were selected and combined with equal proportion to form a novel active components formulation (ACF). The efficacy of ACF on liver fibrosis were evaluated on activation of LX-2 and proliferation of HHSEC in vitro and in liver fibrosis model mice induced by dimethylnitrosamine (DMN). Totally 72 mice were divided into 6 groups using a random number table, including normal, high-dose ACF control (20 µ mol/L × 7 components/kg body weight), model, low-, medium-, high-dose ACF groups (5, 10, 20 µ mol/L × 7 components/kg body weight, respectively). Hematoxylin eosin and Sirius red stainings were used to observe inflammation and fibrosis change of liver tissue; scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were utilized to observe the effect of ACF on ultrastructure of hepatic sinusoids.
RESULTS:
Fifteen components from FZHY showed higher scores for their activity on against liver fibrosis. Among them, 7 components including tanshinone II A, salvianolic acid B, cordycepin, amygdalin, quercetin, protopanaxatriol, and schizandrin B were recombined with equal proportions to form ACF. ACF at 1,2, 4 µ mol/L showed strong inhibitory effects on activation of LX-2 and proliferation of HHSEC in vitro (all P<0.01). Compared with the model group, ACF attenuated liver collagen deposition, improved sinusoidal capillarization in a dose-dependent manner (all P<0.05).
CONCLUSION
ACF exerts a satisfactory effect against experimental liver fibrosis and attenuates sinusoidal capillarization, which warrant a further research and development for herbal components formulation on liver fibrosis.
Animals
;
Body Weight
;
Drugs, Chinese Herbal/adverse effects*
;
Endothelial Cells
;
Liver
;
Liver Cirrhosis/drug therapy*
;
Mice
7.Effect and Mechanism of Yishen Tongluo Prescription on miR-514a-5p/TNFSF15 Signaling Pathway in MN Rats
Jing-yu MAO ; Fei GAO ; Xin-xin ZHANG ; Hao LIU ; Mei-jiao ZHAO ; Su-zhi CHEN ; Feng-wen YANG ; Miao TAN ; Jin-chuan TAN
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(2):121-130
ObjectiveTo explore the molecular mechanism of Yishen Tongluo prescription in inhibiting the apoptosis of glomerular podocytes in rats with membranous nephropathy (MN) based on the miR-514a-5p/tumor necrosis factor superfamily member 15 (TNFSF15) signaling pathway. MethodEighty SD rats were pre-immunized and injected with cationized bovine serum albumin (C-BSA) into the tail vein for inducing MN, and the successfully modeled MN rats were randomly divided into the model group, high-, middle-, and low-dose (26.44, 13.22, 6.61 g·kg-1) Yishen Tongluo prescription groups, and benazepril (10 mg·kg-1) group, with 10 rats in each group, and another 20 healthy rats were classified into the normal group. Rats in each group were gavaged with the corresponding drugs, once a day, for four successive weeks. After the administration, the 24-hour urine total protein (UTP) level, serum total cholesterol (TC), triglyceride (TG), albumin (ALB), creatinine (SCr), and urea nitrogen (BUN) levels were measured. The miR-514a-5p and TNFSF15 mRNA expression levels in the rat kidney tissue were detected by real-time fluorescence quantitative polymerase chain reaction (Real-time PCR), and the expression levels of podocyte marker proteins Nephrin, Podocin, Podocalyxin, Synaptopodin, TNFSF15, and podocyte apoptosis-related proteins B lymphocytoma-2 (Bcl-2)-related X protein (Bax), Bcl-2-associated death promoter (BAD) protein, and B-cell lymphoma-extra large (Bcl-XL) by immunohistochemistry (IHC). Western blot was used to detect the expression levels of TNFSF15, Bax, BAD, Bcl-2, and BCL-XL in the rat kidney tissue. The apoptosis rate of rat kidney tissue was measured using the in situ end labeling method (Tunnel). ResultCompared with the normal group, the level of miR-514a-5p in the kidney tissue was significantly reduced (P<0.05), and the TNFSF15 mRNA expression was significantly increased (P<0.05). The expression levels of podocyte marker proteins Nephrin, Podocin, Podocalyxin, and Synaptopodin were down-regulated (P<0.05). The protein expression levels of TNFSF15, Bax, and BAD were increased (P<0.05), whereas the Bcl-2 and Bcl-XL protein expression levels were decreased (P<0.05). The number of apoptotic cells diminished significantly (P<0.05). Compared with the model group, the level of miR-514a-5p in the kidney tissue was significantly increased (P<0.05), while the level of TNFSF15 mRNA was significantly decreased (P<0.05). The expression levels of podocyte marker proteins Nephrin, Podocin, podocalyxin, and Synaptopodin were up-regulated (P<0.05), whereas the TNFSF15, Bax, and BAD protein expression levels were down-regulated (P<0.05). Bcl-2 and Bcl-XL protein expression levels rose (P<0.05). The number of apoptotic cells significantly decreased (P<0.05). ConclusionYishen Tongluo prescription reduces the apoptosis of rat kidney podocytes and alleviates the kidney injury of MN rats through the miR-514a-5p/TNFSF15 signaling pathway.
9.Research progress of acupuncture for peripheral inflammatory response.
Na-Na YANG ; Chun-Xia TAN ; Yue-Jie LI ; Ling-Yu QI ; Lu-Lu LIN ; Jing-Wen YANG ; Cun-Zhi LIU
Chinese Acupuncture & Moxibustion 2022;42(9):1078-1082
Acupuncture can regulate peripheral inflammatory response mainly through somatosensory-vagal/sympathetic nerve-splenic/adrenal/local reflex pathway. Besides, acupuncture may also play an anti-inflammatory role through gut microbiota and neuro-endocrine pathway. The effects of acupuncture have acupoint specificity and time window effect, and are influenced by voltage, current and frequency of electroacupuncture. Future research should focus on the connection and interaction of multiple targets, pathways and mechanisms in the brain, and clarify the multi-target advantages of acupuncture anti-inflammatory.
Acupuncture
;
Acupuncture Points
;
Acupuncture Therapy
;
Electroacupuncture
10.Comparison of odor and quality of Galli Gigerii Endothelium Corneum derived from domestic chickens and broilers.
Wei HUANG ; Lu-Meng CHEN ; Hao-Zhou HUANG ; Ya-Nan HE ; Xiao-Ming BAO ; Jing YANG ; Jun-Zhi LIN ; Peng TAN ; Li HAN ; Run-Chun XU ; Ding-Kun ZHANG
China Journal of Chinese Materia Medica 2022;47(20):5434-5442
Galli Gigerii Endothelium Corneum(GGEC) is commonly used for the clinical treatment of indigestion, vomiting, diarrhea, and infantile malnutrition with accumulation. In recent decades, omnivorous domestic chickens, the original source of GGEC, has been replaced by broilers, which may lead to significant changes in the quality of the yielding GGEC. Through subjective and objective sensory evaluation, biological evaluation, and chemical analysis, this study compared the odor and quality between GGEC derived from domestic chickens and that from broilers. The odor intensity between them was compared by odor profile analysis and it was found that the fishy odor of GGEC derived from domestic chickens was significantly weaker than that of GGEC from broilers. Headspace-solid phase microextraction-gas chromatography-triple quadrupole tandem mass spectrometry(HS-SPME/GC-QQQ-MS/MS) suggested that the overall odor-causing chemicals were consistent with the fishy odor-causing chemicals. According to the odor activity va-lue and the orthogonal partial least squares discriminant analysis(OPLS-DA) result, dimethyl trisulfide, 2-methoxy-3-isobutylpyrazine, and 2-methylisoborneol were responsible for the fishy odor(OAV≥1) and the content of fishy odor-causing chemicals in GGEC derived from broilers was 1.12-2.13 folds that in GGEC from domestic chickens. The average pepsin potency in GGEC derived from broilers was 15.679 U·mg~(-1), and the corresponding figure for the medicinal from domestic chickens was 26.529 U·mg~(-1). The results of pre-column derivatization reverse-phase high-performance liquid chromatography(RP-HPLC) assay showed that the content of total amino acids and digestion-promoting amino acids in domestic chickens-derived GGEC was 1.12 times and 1.15 times that in GGEC from broilers, and the bitter amino acid content was 1.21 times folds that of the latter. In conclusion, GGEC derived from domestic chickens had weaker fishy odor, stronger enzyme activity, higher content of digestion-promoting amino acids, and stronger bitter taste than GGEC from broilers. This study lays a scientific basis for studying the quality variation of GGEC and provides a method for identifying high-quality GGEC. Therefore, it is of great significance for the development and cultivation of GGEC as both food and medicine and breeding of corresponding varieties.
Animals
;
Odorants/analysis*
;
Chickens
;
Gas Chromatography-Mass Spectrometry/methods*
;
Tandem Mass Spectrometry
;
Solid Phase Microextraction
;
Amino Acids
;
Endothelium/chemistry*
;
Volatile Organic Compounds/analysis*

Result Analysis
Print
Save
E-mail