1.Effects of low-level laser on the expression of interleukin-6, tumor necrosis factor‑α, osteoprotegerin, and receptor activator of nuclear factor-κB ligand in human periodontal ligament cells.
Meng TANG ; Zhan-Qin CUI ; Yangyang WANG ; Zengguo CHEN ; Wenjing LI ; Cuiping ZHANG
West China Journal of Stomatology 2023;41(5):521-532
OBJECTIVES:
This study aims to determine the effects of low-level laser (LLL) on the expression of interleukin-6 (IL-6), tumor necrosis factor (TNF)-α, osteoprotegerin (OPG), and receptor activator of nuclear factor-κB ligand (RANKL) in human periodontal ligament cells (HPDLCs) stimulated by high glucose; and identify the molecular mechanism of LLL therapy in the regulation of periodontal inflammation and bone remodeling during orthodontic treatment in diabetic patients.
METHODS:
HPDLCs were cultured <i>in vitroi> to simulate orthodontic after loading and irradiated with LLL therapy. The cultured cells were randomly divided into four groups: low glucose Dulbecco's modification of Eagle's medium (DMEM)+stress stimulation (group A), high glucose DMEM+stress stimulation (group B), hypoglycemic DMEM+LLL therapy+stress stimulation (group C), and hyperglycemic DMEM+LLL therapy+stress stimulation (group D). Groups C and D were further divided into C1 and D1 (energy density: 3.75 J/cm2) and C2 and D2 (energy density: 5.625 J/cm2). Cells in groups A, B, C, and D were irradiated by LLL before irradiation. At 0, 12, 24, 48, and 72 h, the supernatants of the cell cultures were extracted at regular intervals, and the protein expression levels of IL-6, TNF-α, OPG, and RANKL were detected by enzyme-linked immunosorbent assay.
RESULTS:
1) The levels of IL-6 and TNF-α secreted by HPDLCs increased gradually with time under static pressure stimulation. After 12 h, the levels of IL-6 and TNF-α secreted by HPDLCs in group A were significantly higher than those in groups B, C1, and C2 (<i>Pi><0.05), which in group B were significantly higher than those in groups D1, and D2 (<i>Pi><0.01). 2) The OPG protein concentration showed an upward trend before 24 h and a downward trend thereafter. The RANKL protein concentration increased, whereas the OPG/RANKL ratio decreased with time. Significant differen-ces in OPG, RANKL, and OPG/RANKL ratio were found among group A and groups B, C1, C2 as well as group B and groups D1, D2 (<i>Pi><0.05).
CONCLUSIONS
1) In the high glucose+stress stimulation environment, the concentrations of IL-6 and TNF-α secreted by HPDLCs increased with time, the expression of OPG decreased, the expression of RANKL increased, and the ratio of OPG/RANKL decreased. As such, high glucose environment can promote bone resorption. After LLL therapy, the levels of IL-6 and TNF-α decreased, indicating that LLL therapy could antagonize the increase in the levels of inflammatory factors induced by high glucose environment and upregulate the expression of OPG in human HPDLCs, downregulation of RANKL expression in HPDLCs resulted in the upregulation of the ratio of OPG/RANKL and reversed the imbalance of bone metabolism induced by high glucose levels. 2) The decrease in inflammatory factors and the regulation of bone metabolism in HPDLCs were enhanced with increasing laser energy density within 3.75-5.625 J/cm2. Hence, the ability of LLL therapy to modulate bone remodeling increases with increasing dose.
Humans
;
Osteoprotegerin
;
Tumor Necrosis Factor-alpha/metabolism*
;
Interleukin-6/pharmacology*
;
RANK Ligand/pharmacology*
;
Periodontal Ligament/metabolism*
;
Lasers
;
Glucose/pharmacology*
2.Neuroprotective effect and mechanism of Zuogui Jiangtang Jieyu Formula on diabetes mellitus complicated with depression model rats based on CX3CL1-CX3CR1 axis.
Ping LI ; Yang LIU ; Man-Shu ZOU ; Ting-Ting WANG ; Hai-Peng GUO ; Ting-Ting REN ; Ying HE ; Hua WANG ; Yu-Hong WANG
China Journal of Chinese Materia Medica 2023;48(21):5822-5829
Based on the CX3C chemokine ligand 1(CX3CL1)-CX3C chemokine receptor 1(CX3CR1) axis, this study explored the potential mechanism by which Zuogui Jiangtang Jieyu Formula(ZGJTJY) improved neuroinflammation and enhanced neuroprotective effect in a rat model of diabetes mellitus complicated with depression(DD). The DD rat model was established by feeding a high-fat diet combined with streptozotocin(STZ) intraperitoneal injection for four weeks and chronic unpredictable mild stress(CUMS) combined with isolated cage rearing for five weeks. The rats were divided into a control group, a model group, a positive control group, an inhibitor group, and a ZGJTJY group. The open field test and forced swimming test were used to assess the depression-like behaviors of the rats. Enzyme-linked immunosorbent assay(ELISA) was performed to measure the expression levels of the pro-inflammatory cytokines interleukin-1β(IL-1β) and tumor necrosis factor-α(TNF-α) in plasma. Immunofluorescence staining was used to detect the expression of ionized calcium-binding adapter molecule 1(Iba1), postsynaptic density protein-95(PSD95), and synapsin-1(SYN1) in the hippocampus. Hematoxylin-eosin(HE) staining, Nissl staining, and TdT-mediated dUTP nick end labeling(TUNEL) fluorescence staining were performed to assess hippocampal neuronal damage. Western blot was used to measure the expression levels of CX3CL1, CX3CR1, A2A adenosine receptor(A2AR), glutamate receptor 2A(NR2A), glutamate receptor 2B(NR2B), and brain-derived neurotrophic factor(BDNF) in the hippocampus. Compared with the model group, the ZGJTJY group showed improved depression-like behaviors in DD rats, enhanced neuroprotective effect, increased expression of PSD95, SYN1, and BDNF(P<0.01), and decreased expression of Iba1, IL-1β, and TNF-α(P<0.01), as well as the expression of CX3CL1, CX3CR1, A2AR, NR2A, and NR2B(P<0.01). These results suggest that ZGJTJY may exert its neuroprotective effect by inhibiting the CX3CL1-CX3CR1 axis and activation of hippocampal microglia, thereby improving neuroinflammation and abnormal activation of N-methyl-D-aspartate receptor(NMDAR) subunits, and ultimately enhancing the expression of synaptic-related proteins PSD95, SYN1, and BDNF in the hippocampus.
Rats
;
Animals
;
Depression/drug therapy*
;
Brain-Derived Neurotrophic Factor
;
Neuroprotective Agents
;
Tumor Necrosis Factor-alpha/metabolism*
;
Neuroinflammatory Diseases
;
Diabetes Mellitus
;
Receptors, Glutamate
;
CX3C Chemokine Receptor 1/genetics*
3.Mechanism of Zhongfeng Xingnao Decoction in improving microcirculatory disorders in cerebral hemorrhage based on network pharmacology and molecular docking techniques.
Xiao-Qin ZHONG ; Da-Feng HU ; Yu WANG ; Zhen-Qiu NING ; Min-Zhen DENG
China Journal of Chinese Materia Medica 2023;48(22):6115-6127
This study aimed to explore the mechanism of Zhongfeng Xingnao Decoction(ZFXN) in intervening microcirculatory di-sorders in cerebral hemorrhage by network pharmacology and molecular docking techniques. The information on the components of ZFXN was obtained through the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP) database, and the predicted targets of chemical components were obtained from PubChem and SwissTargetPrediction. The relevant targets of cerebral hemorrhage and microcirculatory disorders were collected from the GeneCards database, and the common targets of the components and diseases were analyzed by the Database for Annotation, Visualization, and Integrated Discovery(DAVID) for Gene Ontology(GO) and Kyoto Encyclopedia of Genes and Genomes(KEGG) enrichment analyses. Visualization of the correlation network was carried out using Cytoscape software to further screen important chemical components for molecular docking prediction with disease targets. The animal experiment validation was performed using modified neurological severity score(mNSS), enzyme-linked immunosorbent assay(ELISA), quantitative real-time polymerase chain reaction(qRT-PCR), immunofluorescence, and Western blot to detect the effects of ZFXN intervention in mice with cerebral hemorrhage. The results showed that there were 31 chemical components and 856 targets in the four drugs contained in ZFXN, 173 targets for microcirculatory disorders in cerebral hemorrhage, and 57 common targets for diseases and components. The enrichment analysis showed that common targets were mainly involved in biological processes, such as cell proliferation and apoptosis, and signaling pathways, such as tumor pathway, viral infection, phosphoinositide-3-kinase/protein kinase B(PI3K/AKT) signaling pathway, and mitogen-activated protein kinase(MAPK) signaling pathway. Molecular docking results revealed that the common components β-sitosterol of Rhei Radix et Rhizoma, Notoginseng Radix et Rhizoma, and Ginseng Radix et Rhizoma Rubra showed good docking with proto-oncogene tyrosine-protein kinase(SRC), signal transducer and activator of transcription 3(STAT3), phosphoinositide-3-kinase catalytic alpha polypeptide gene(PIK3CA), recombinant protein tyrosine phosphatase non receptor type 11(PTPN11), AKT1, epidermal growth factor receptor(EGFR), calcium adhesion-associated protein beta 1(CTNNB1), vascular endothelial growth factor A(VEGFA), and tumor protein p53(TP53). Moreover, sennoside E of Rhei Radix et Rhizoma showed good docking with MAPK1. The results revealed that the ZFXN relieved the neural injury in mice with cerebral hemorrhage, decreased the expression of S100 calcium-binding protein B(S100β), neuron specific enolase(NSE), matrix metalloproteinase 9(MMP9), tumor necrosis factor α(TNF-α), interleukin 1β(IL-1β), SRC, EGFR, CTNNB1, VEGFA, TP53, glial fibrillary acidic protein(GFAP), and leukocyte differentiation antigen 86(CD86), and increased the expression of p-PI3K, p-AKT, and zona occludens 1(ZO-1). The results indicate that ZFXN may inhibit neuronal apoptosis and inflammatory response through PI3K/AKT/p53 pathway to protect the blood-brain barrier, thereby slowing down microcirculatory impairment in cerebral hemorrhage.
Animals
;
Mice
;
Tumor Suppressor Protein p53
;
Proto-Oncogene Proteins c-akt
;
Molecular Docking Simulation
;
Network Pharmacology
;
Vascular Endothelial Growth Factor A
;
Microcirculation
;
Phosphatidylinositol 3-Kinases/genetics*
;
Tumor Necrosis Factor-alpha
;
ErbB Receptors
;
Cerebral Hemorrhage/drug therapy*
;
Neoplasms
;
Phosphatidylinositols
;
Drugs, Chinese Herbal/pharmacology*
4.Yigong Powder regulates CXCL12/CXCR4 signaling to reduce glutamate release and prevent cognitive decline in mouse model of aging.
Jiang-Ping WEI ; Zi-Xuan ZHAO ; Jing ZENG ; Fang-Hong SHANG ; Lei HUA ; Yong YANG ; Xiao-Mei ZHANG
China Journal of Chinese Materia Medica 2023;48(23):6483-6491
This study aims to explore the effect of preventive administration of Yigong Powder on the learning and memory abilities of the mouse model of aging induced by D-galactose and decipher the underlying mechanism, so as to provide a basis for the application of Yigong Powder in the prevention and treatment of cognitive decline. Forty KM mice were randomized into control, model, donepezil(1.5 mg·kg~(-1)), and high-dose(7.5 g·kg~(-1)) and low-dose(3.75 g·kg~(-1)) Yigong Powder groups. The mice in other groups except the control group were injected with D-galactose(200 g·kg~(-1)) at the back of the neck for the modeling of aging. At the same time, the mice were administrated with corresponding drugs by gavage for one month. Morris water maze was used to examine the learning and memory abilities of the mice. Hematoxylin-eosin staining was employed to observe the pathological and morphological changes of the hippocampus. The immunofluorescence assay was employed to detect the expression of ionized calcium-binding adapter molecule 1(IBA1), glial fibrillary acidic protein(GFAP), chemokine C-X-C-motif ligand 12(CXCL12), chemokine C-X-C-motif receptor 4(CXCR4) in the hippocampus and observe the positional relationship between IBA1, GFAP, and CXCR4. Western blot was employed to determine the protein levels of extracellular regulated kinase(ERK), p-ERK, and tumor necrosis factor receptor 1(TNFR1). Enzyme-linked immunosorbent assay was employed to measure the levels of glutamate and tumor necrosis factor(TNF-α) in the brain tissue and the level of TNF-α in the serum and spleen. Yigong Powder significantly shortened the escape latency, increased the times crossing platforms, and prolonged the cumulative time in quadrants of the aging mice. It alleviated the nerve cell disarrangement, increased intercellular space, and cell degeneration or death in the hippocampus and reduced the pathology score of the damaged nerve. Moreover, Yigong Powder reduced the positive area of IBA1 and GFAP, reduced the levels of TNF-α in the brain tissue, serum, and spleen, and decreased spleen index. Furthermore, Yigong Powder decreased the average fluorescence intensity of CXCL12 and CXCR4, reduced CXCR4-positive astrocytes and microglia, down-regulated the protein levels of p-ERK/ERK and TNFR1, and lowered the level of glutamate in the brain tissue. This study showed that the preventive administration of Yigong Powder can ameliorate the learning and memory decline of the D-galactose-induced aging mice by regulating the immune function of the spleen and the CXCL12/CXCR4 signaling in the brain to reduce glutamate release. However, the mechanism of Yigong San in preventing and treating dementia via regulating spleen and stomach function remains to be studied.
Mice
;
Animals
;
Powders
;
Receptors, Tumor Necrosis Factor, Type I
;
Glutamic Acid
;
Tumor Necrosis Factor-alpha/metabolism*
;
Galactose/adverse effects*
;
Disease Models, Animal
;
Cognitive Dysfunction/prevention & control*
;
Chemokines
;
Drugs, Chinese Herbal
5.BGB-A445, a novel non-ligand-blocking agonistic anti-OX40 antibody, exhibits superior immune activation and antitumor effects in preclinical models.
Beibei JIANG ; Tong ZHANG ; Minjuan DENG ; Wei JIN ; Yuan HONG ; Xiaotong CHEN ; Xin CHEN ; Jing WANG ; Hongjia HOU ; Yajuan GAO ; Wenfeng GONG ; Xing WANG ; Haiying LI ; Xiaosui ZHOU ; Yingcai FENG ; Bo ZHANG ; Bin JIANG ; Xueping LU ; Lijie ZHANG ; Yang LI ; Weiwei SONG ; Hanzi SUN ; Zuobai WANG ; Xiaomin SONG ; Zhirong SHEN ; Xuesong LIU ; Kang LI ; Lai WANG ; Ye LIU
Frontiers of Medicine 2023;17(6):1170-1185
OX40 is a costimulatory receptor that is expressed primarily on activated CD4+, CD8+, and regulatory T cells. The ligation of OX40 to its sole ligand OX40L potentiates T cell expansion, differentiation, and activation and also promotes dendritic cells to mature to enhance their cytokine production. Therefore, the use of agonistic anti-OX40 antibodies for cancer immunotherapy has gained great interest. However, most of the agonistic anti-OX40 antibodies in the clinic are OX40L-competitive and show limited efficacy. Here, we discovered that BGB-A445, a non-ligand-competitive agonistic anti-OX40 antibody currently under clinical investigation, induced optimal T cell activation without impairing dendritic cell function. In addition, BGB-A445 dose-dependently and significantly depleted regulatory T cells in vitro and in vivo via antibody-dependent cellular cytotoxicity. In the MC38 syngeneic model established in humanized OX40 knock-in mice, BGB-A445 demonstrated robust and dose-dependent antitumor efficacy, whereas the ligand-competitive anti-OX40 antibody showed antitumor efficacy characterized by a hook effect. Furthermore, BGB-A445 demonstrated a strong combination antitumor effect with an anti-PD-1 antibody. Taken together, our findings show that BGB-A445, which does not block OX40-OX40L interaction in contrast to clinical-stage anti-OX40 antibodies, shows superior immune-stimulating effects and antitumor efficacy and thus warrants further clinical investigation.
Mice
;
Animals
;
Receptors, Tumor Necrosis Factor/physiology*
;
Receptors, OX40
;
Membrane Glycoproteins
;
Ligands
;
Antibodies, Monoclonal/pharmacology*
;
Antineoplastic Agents/pharmacology*
6.Clinical analysis of 10 cases of multi-center tumor necrosis factor receptor-associated periodic syndrome.
Ming Sheng MA ; Zhi YANG ; Cai Hui ZHANG ; Yao Yao SHANGGUAN ; Yong Zhen LI ; Mei Fang ZHU ; Cui BAI ; Yu ZHOU ; Qiu Ye ZHANG ; Hai Guo YU ; Xiao Chuan WU ; Wen Jie ZHENG ; Jun YANG ; Hong Mei SONG
Chinese Journal of Pediatrics 2023;61(12):1098-1102
Objective:b> To summarize the clinical characteristics of tumour necrosis factor receptor-associated periodic syndrome (TRAPS) in children. Methods:b> The clinical manifestations, laboratory tests, genetic testing and follow-up of 10 children with TRAPS from May 2011 to May 2021 in 6 hospitals in China were retrospectively analyzed. Results:b> Among the 10 patients with TRAPS, including 8 boys and 2 girls. The age of onset was 2 (1, 5) years, the age of diagnosis was (8±4) years, and the time from onset to diagnosis was 3 (1, 7) years. A total of 7 types of TNFRSF1A gene variants were detected, including 5 paternal variations, 1 maternal variation and 4 de novo variations. Six children had a family history of related diseases. Clinical manifestations included recurrent fever in 10 cases, rash in 4 cases, abdominal pain in 6 cases, joint involvement in 6 cases, periorbital edema in 1 case, and myalgia in 4 cases. Two patients had hematological system involvement. The erythrocyte sedimentation rate and C-reactive protein were significantly increased in 10 cases. All patients were negative for autoantibodies. In the course of treatment, 5 cases were treated with glucocorticoids, 7 cases with immunosuppressants, and 7 cases with biological agents. Conclusions:b> TRAPS is clinically characterized by recurrent fever accompanied by joint, gastrointestinal, skin, and muscle involvement. Inflammatory markers are elevated, and autoantibodies are mostly negative. Treatment mainly involves glucocorticoids, immunosuppressants, and biological agents.
Male
;
Child
;
Female
;
Humans
;
Child, Preschool
;
Receptors, Tumor Necrosis Factor, Type I/genetics*
;
Retrospective Studies
;
Hereditary Autoinflammatory Diseases/drug therapy*
;
Glucocorticoids/therapeutic use*
;
Biological Factors/therapeutic use*
;
Immunosuppressive Agents/therapeutic use*
;
Autoantibodies
;
Familial Mediterranean Fever/diagnosis*
;
Mutation
7.Pachymic acid protects against Crohn's disease-like intestinal barrier injury and colitis in miceby suppressingintestinal epithelial cell apoptosis <i>viai> inhibiting PI3K/AKT signaling.
Rongrong SHAO ; Zi YANG ; Wenjing ZHANG ; Nuo ZHANG ; Yajing ZHAO ; Xiaofeng ZHANG ; Lugen ZUO ; Sitang GE
Journal of Southern Medical University 2023;43(6):935-942
OBJECTIVE:
To investigate the effect of pachymic acid (PA) against TNBS-induced Crohn's disease (CD)-like colitis in mice and explore the possible mechanism.
METHODS:
Twenty-four C57BL/6J mice were randomized equally into control group, TNBS-induced colitis model group and PA treatment group. PA treatment was administered via intraperitoneal injection at the daily dose of 5 mg/kg for 7 days, and the mice in the control and model groups were treated with saline. After the treatments, the mice were euthanized for examination of the disease activity index (DAI) of colitis, body weight changes, colon length, intestinal inflammation, intestinal barrier function and apoptosis of intestinal epithelial cells, and the expressions of TNF-α, IL-6 and IL-1β in the colonic mucosa were detected using ELISA. The possible treatment targets of PA in CD were predicted by network pharmacology. String platform and Cytoscape 3.7.2 software were used to construct the protein-protein interaction (PPI) network. David database was used to analyze the GO function and KEGG pathway; The phosphorylation of PI3K/AKT in the colonic mucosal was detected with Western blotting.
RESULTS:
PA significantly alleviated colitis in TNBS-treated mice as shown by improvements in the DAI, body weight loss, colon length, and histological inflammation score and lowered levels of TNF-α, IL-6 and IL-1β. PA treatment also significantly improved FITC-dextran permeability, serum I-FABP level and colonic transepithelial electrical resistance, and inhibited apoptosis of the intestinal epithelial cells in TNBS-treated mice. A total of 248 intersection targets were identified between PA and CD, and the core targets included EGFR, HRAS, SRC, MMP9, STAT3, AKT1, CASP3, ALB, HSP90AA1 and HIF1A. GO and KEGG analysis showed that PA negatively regulated apoptosis in close relation with PI3K/AKT signaling. Molecular docking showed that PA had a strong binding ability with AKT1, ALB, EGFR, HSP90AA1, SRC and STAT3. In TNBS-treated mice, PA significantly decreased p-PI3K and p-AKT expressions in the colonic mucosa.
CONCLUSION
PA ameliorates TNBS-induced intestinal barrier injury in mice by antagonizing apoptosis of intestinal epithelial cells possibly by inhibiting PI3K/AKT signaling.
Animals
;
Mice
;
Mice, Inbred C57BL
;
Crohn Disease
;
Phosphatidylinositol 3-Kinases
;
Proto-Oncogene Proteins c-akt
;
Interleukin-6
;
Molecular Docking Simulation
;
Tumor Necrosis Factor-alpha
;
Colitis/chemically induced*
;
Inflammation
;
Apoptosis
;
ErbB Receptors
8.Study on construction of c-Met specific CAR-T cells and its killing effect on non-small cell lung carcinoma.
Jing Ting MIN ; Lu ZHANG ; Chi Rong LONG ; Hong Lian FAN ; Zheng hong LI
Chinese Journal of Oncology 2023;45(4):322-329
Objective:b> To produce chimeric antigen receptor T cells (CAR-T) targeting human hepatocyte growth factor/c-Met (HGF/c-Met) protein and detect its cytotoxicity against non-small cell lung cancer (NSCLC) cells H1975 <i>in vitroi>. Methods:b> The whole gene sequence of c-Met CAR containing c-Met single-chain fragment variable was synthesized and linked to lentiviral vector plasmid, plasmid electrophoresis was used to detect the correctness of target gene. HEK293 cells were transfected with plasmid and the concentrated solution of the virus particles was collected. c-Met CAR lentivirus was transfected into T cells to obtain second-generation c-Met CAR-T and the expression of CAR sequences was verified by reverse transcription-quantitative real-time polymerase chain reaction (RT-qPCR) and western blot, and the positive rate and cell subtypes of c-Met CAR-T cells were detected by flow cytometry. The positive expression of c-Met protein in NSCLC cell line H1975 was verified by flow cytometry, and the negative expression of c-Met protein in ovarian cancer cell line A2780 was selected as the control. The cytotoxicity of c-Met CAR-T to H1975 was detected by lactate dehydrogenase (LDH) cytotoxicity assay at 1∶1, 5∶1, 10∶1 and 20∶1 of effector: target cell ratio (E∶T). Enzyme-linked immunosorbent assay (ELISA) was used to detect the release of cytokines such as TNF-α, IL-2 and IFN-γ from c-Met CAR-T co-cultured with H1975. Results:b> The size of band was consistent with that of designed c-Met CAR, suggesting that the c-Met CAR plasmid was successfully constructed. The results of gene sequencing were consistent with the original design sequence and lentivirus was successfully constructed. CAR molecules expression in T cells infected with lentivirus was detected by western blot and RT-qPCR, which showed c-Met CAR-T were successfully constructed. Flow cytometry results showed that the infection efficiency of c-Met CAR in T cells was over 38.4%, and the proportion of CD8(+) T cells was increased after lentivirus infection. The NSCLC cell line H1975 highly expressed c-Met while ovarian cancer cell line A2780 negatively expressed c-Met. LDH cytotoxicity assay indicated that the killing efficiency was positively correlated with the E∶T, and higher than that of control group, and the killing rate reached 51.12% when the E∶T was 20∶1. ELISA results showed that c-Met CAR-T cells released more IL-2, TNF-α and IFN-γ in target cell stimulation, but there was no statistical difference between c-Met CAR-T and T cells in the non-target group. Conclusions:b> Human NSCLC cell H1975 expresses high level of c-Met which can be used as a target for immunotherapy. CAR-T cells targeting c-Met have been successfully produced and have high killing effect on c-Met positive NSCLC cells <i>in vitroi>.
Humans
;
Female
;
Receptors, Chimeric Antigen/genetics*
;
Carcinoma, Non-Small-Cell Lung
;
CD8-Positive T-Lymphocytes
;
Interleukin-2/pharmacology*
;
Tumor Necrosis Factor-alpha
;
Cell Line, Tumor
;
HEK293 Cells
;
Lung Neoplasms
;
Ovarian Neoplasms
;
Immunotherapy, Adoptive
9.Resveratrol Modulates Bone Mineral Density and Bone Mineral Content in A Rat Model of Male Hypogonadism.
Hussein F SAKR ; Boudaka AMMAR ; Amira ALKHARUSI ; I AL-LAWATI ; Mahmoud ALKHATEEB ; Basim H ELESAWY
Chinese journal of integrative medicine 2023;29(2):146-154
OBJECTIVE:
To determine whether resveratrol (Res) can correct osteoporosis induced in a rat model of male hypogonadism.
METHODS:
Thirty-two rats were randomly divided into 4 groups, 8 in each group; 1) a control sham group: underwent a similar surgical procedure for induction of orchiectomy (ORCD) without ligation of any arteries or veins or removal of the testis and epididymis; 2) a control + Res-treated group (Con+Res): underwent sham surgery similar to the control, but was then treated with Res, as described below; 3) an ORCD-induced group: bilateral ORCD surgery as described above, and 4) a ORCD+Res-treated group: bilateral ORCD surgery followed by Res treatment. Res treatment began 4 weeks after ORCD and continued for 12 weeks. After 12 weeks, bone mineral density (BMD) and bone mineral content (BMC) were measured in the tibia and femur of each rat's right hind leg. Blood levels of bone turnover indicators such as deoxypyridinoline (Dpd), N-telopeptide of type I collagen (NTX I), alkaline phosphatase (ALP), and osteocalcin (OC), as well as receptor activator of nuclear factor kappa B (RANK) and osteoprotegerin (OPG) were assessed.
RESULTS:
ORCD significantly decreased BMD (P<0.01) and significantly increased bone resorption, manifested by increased RANK. In addition, it inhibited serum levels of OPG and OC. Res treatment after ORCD effectively increased serum levels of bone formation markers such as OPG and OC, compared with testisectomized rats (P<0.05).
CONCLUSION
Res could ameliorate bone loss induced by male hypogonadism, possible via restoration of the normal balance between RANK and OPG.
Rats
;
Male
;
Animals
;
Bone Density
;
Resveratrol/pharmacology*
;
Osteoporosis
;
Osteoprotegerin/pharmacology*
;
Bone Remodeling
;
Hypogonadism
;
RANK Ligand/pharmacology*
10.miR-148b inhibits M2 polarization of LPS-stimulated macrophages by targeting DcR3.
Li Yuan YANG ; Xiao Li LOU ; Yue WANG ; Yan Qiang HOU
Chinese Journal of Preventive Medicine 2023;57(8):1231-1237
<b>Objective:b> To investigate the effect of microRNA (miR-148b) targeting decoy receptor 3 (DcR3) on macrophage polarization in sepsis. <b>Methods:b> Experimental study. From December 2019 to December 2022, serum microRNA expression was detected in 3 patients with sepsis and 3 healthy controls in the clinical laboratory of Songjiang Hospital Affiliated to Shanghai Jiao Tong University School of Medicine. Phorbol 12-myristate 13-acetate (PMA) was used to induce the differentiation of human acute monocytic leukemia cells THP-1 into macrophages, and then lipopolysaccharide (LPS) was added to stimulate the establishment of a sepsis cell model, and the expression changes of miR-148b and DcR3 were detected by RT-PCR and Western blot. Overexpression of DcR3 was used to detect the expression levels of TNF-α, CD163 and IL-10 in macrophages stimulated by LPS (100 ng/ml). Overexpression of miR-148b was used to observe the changes of molecular markers of macrophage polarization. The targeting regulation effect of miR-148b on DcR3 was determined by dual-luciferase reporter assay. <i>ti> test was used to analyze whether there were statistical differences among the groups. <b>Results:b> The expression of miR-148b was down-regulated (<i>Pi><0.05) and the expression of DcR3 was up-regulated (<i>Pi><0.01) in THP-1 macrophages stimulated by LPS. Overexpression of DcR3 inhibited the expression of TNF-α (<i>Pi><0.05) and promoted the expression of CD163 (<i>Pi><0.01) and IL-10 (<i>Pi><0.01). When miR-148b mimics was added, the opposite effect was observed. The dual-luciferase reporter assay confirmed that miR-148b targets and binds to DcR3, inhibiting its transcription and expression. The results of flow cytometry showed that DcR3 could reverse the promoting effect of miR-148b on the CD86/CD163 ratio of macrophages (<i>Pi><0.05). <b>Conclusion:b> miR-148b inhibits the expression of DcR3, thereby inhibiting M2 polarization in LPS-stimulated macrophage cells.
Humans
;
Interleukin-10
;
Lipopolysaccharides/pharmacology*
;
Macrophages
;
MicroRNAs/genetics*
;
Receptors, Tumor Necrosis Factor, Member 6b/metabolism*
;
Tumor Necrosis Factor-alpha

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