Lycii Radicis Cortex(LRC)is a medicinal and food homologous plant with various pharmacological activities,including anti-tumor effects.This study explores the anti-tumor effect of LRC on non-small cell lung cancer(NSC...Lycii Radicis Cortex(LRC)is a medicinal and food homologous plant with various pharmacological activities,including anti-tumor effects.This study explores the anti-tumor effect of LRC on non-small cell lung cancer(NSCLC)and its molecular mechanism using mice bearing Lewis lung carcinoma cells.LRC significantly suppressed the growth of NSCLC.Besides,RNA sequencing of mice tumors and hematoxylin&eosin and immunofluorescence staining revealed that LRC promoted the infiltration of T lymphocytes,specifically GZMB~+CD8~+T lymphocytes,in tumor tissues.The Gene Set Enrichment Analysis of spleen RNA indicated that LRC up-regulated PD-1-downstream pathways,suggesting that LRC exerted its effects through the PDL1/PD-1 pathway.Further experiments revealed that LRC interacted with PD-L1,blocking PD-L1/PD-1 binding and thus restoring the T cell killing activity on tumor cells.Together,these results support using LRC as healthy food to improve anti-tumor immunity in patients with NSCLC.展开更多
Dear Editor,Physical exercise has been shown to be associated with reduced cancer incidence and cancer-associated mortality[1,2],but the underlying mechanisms are obscure.Immunometabolic regulation has emerged as one ...Dear Editor,Physical exercise has been shown to be associated with reduced cancer incidence and cancer-associated mortality[1,2],but the underlying mechanisms are obscure.Immunometabolic regulation has emerged as one of the most prominent mechanisms explaining the effects of exercise on cancer[1,2].Physical exercise primarily lowers blood cholesterol and triglycerides,and protects against cardiovascular diseases[3].However,whether physical exercise can modulate cholesterol metabolism in tumor cells is currently unknown.展开更多
Objective To evaluate the correlation between programmed death-ligand 1 （PD-L1） expression in primary lung cancer cells, tumor associated macrophages （TAM） and patients＇ clinicopathological characteristics. Meth...Objective To evaluate the correlation between programmed death-ligand 1 （PD-L1） expression in primary lung cancer cells, tumor associated macrophages （TAM） and patients＇ clinicopathological characteristics. Methods From 2008 to 2010, 208 non-small cell lung cancer patients who underwent surgery or CT-guided biopsy were recruited from Huadong Hospital, Fudan University. Immunohistochemistry staining was performed to evaluate the PD-L1 expression in both primary lung cancer cells and CD68 positive TAM.展开更多
Skin reaction or dermatological toxicities induced by immunotherapy is common.It usually manifests skin rash or erythema and can be cured by skin lotion or steroid.Nivolumab,a human IgG4 programmed cell death protein ...Skin reaction or dermatological toxicities induced by immunotherapy is common.It usually manifests skin rash or erythema and can be cured by skin lotion or steroid.Nivolumab,a human IgG4 programmed cell death protein 1(PD-1)inhibitor,blocks T cells activation preventing signal and allows the immune system to clear cancer cells.Nivolumab was approved in the second-line therapy in squamous cell lung cancer by FDA,with less than 10%unusual skin reaction,like sensory neuropathy,peeling skin,erythema multiforme,vitiligo,and psoriasis.Radiotherapy could aggravate this skin reaction through inflammatory response and promotion of immunity.The combined treatment of anti-PD-1 and radiotherapy represented a new promising therapeutic approach in many studies,but the risk of side effects may be high.We reported a patient with advanced squamous cell lung cancer who suffered from serious skin immune-related adverse events when he was treated with nivolumab and radiotherapy.The immune overreaction of the treatment of anti-PD-1 treatment and radiotherapy might cause these serious skin adverse events.Our report warranted careful workup to reduce the risk of side effects by combinative therapy with anti-PD-1 and radiotherapy.展开更多
Objective To investigate the expression and regulation of programmed cell death protein 1(PD1),B lymphocyte and T lymphocyte attenuator(BTLA)in peripheral blood of patients with non-small cell lung cancer(NSCLC);to ex...Objective To investigate the expression and regulation of programmed cell death protein 1(PD1),B lymphocyte and T lymphocyte attenuator(BTLA)in peripheral blood of patients with non-small cell lung cancer(NSCLC);to examine the correlation of the mRNA levels between PD and BTLA in NSCLC.Methods Flow cytometry was used to detect the expression of PD1 and BTLA on the surfaces of CD8^+T cells andγδ+T cells in the peripheral blood samples collected from 32 in-patients with stage IV NSCLC and 30 healthy individuals.We compared the expression of PD1 and BTLA on the surfaces ofγδ+T cells in the NSCLC patients with bone metastasis before and after the treatment of zoledronic acid.The correlations of PD1 and BTLA,as well as their ligands were analyzed using Pearson correlation analysis with the cBioPortal data platform.Results The frequency of PD1 on the surfaces of CD8^+T cells was significantly higher than that of theγδT cells in both healthy controls(t=2.324,P=0.024)and NSCLC patients(t=2.498,P=0.015).The frequency of PD1 on CD8^+T cells,rather than onγδ+T cells,was significantly upregulated in advanced NSCLC patients compared with that in healthy controls(t=4.829,P<0.001).The PD1+BTLA+γδT cells of the healthy controls were significantly lower than that of the NSCLC patients(t=2.422,P=0.0185).No differences in percentage of PD1+γδ+and BTLA+γδ+T cells were observed in 7 NSCLC patients with bone metastasis before and after zoledronic acid treatment.PD1 was positively correlated with BTLA in both lung adenocarcinoma(r=0.54;P<0.05)and lung squamous cell carcinoma(r=0.78;P<0.05).Conclusions The upregulation of co-inhibitory molecules occurs on the surfaces of both CD8^+T cells andγδT cells in advanced NSCLC,suggesting that these molecules were involved in regulating the inactivation of CD8^+T cells andγδ+T cells,immune escape and tumor invasion.展开更多
Objective:To express two Livin isoforms (Livin α & β genes) with transfection techniques in A549 cell line respectively in order to observe their effect on growth of cell line. Methods:Two eukaryotic expression ...Objective:To express two Livin isoforms (Livin α & β genes) with transfection techniques in A549 cell line respectively in order to observe their effect on growth of cell line. Methods:Two eukaryotic expression vectors of Livin, pcDNA3.1-Livin α & β, were transfected into A549 cell line by electroporation. Then G418-resistant clones were screened. RT-PCR, Northern blot and immunofluorescence cytochemistry were used to detect Livin α & β expression level in the transfected cells. Finally, observation of cell morphology, growth curve assay and colony formation analysis were performed to explore the effect of Livin on growth of the cells. Results:Livin α & β were expressed in transfected A549 cells, and induced a faster cell growth, shorter doubling time and stronger cell colony forming ability, yet had no morphology change.Conclusion:Both isoforms can accelerate the growth of A549 cells, indicating a close relationship between Livin expression and the genesis and development of lung cancer. The expression of Livin α & β in A549 cells provides basis for further study of their different biological functions of anti-apoptosis and of their role in lung cancer cell resistance to radiotherapy and chemotherapy.展开更多
基金supported by Natural Science Foundation of Guangdong Province,China(2022A1515011575)National Natural Science Foundation of China,China(81873154)President Foundation of Integrated Hospital of Traditional Chinese Medicine,Southern Medical University,China(1202103010)。
文摘Lycii Radicis Cortex(LRC)is a medicinal and food homologous plant with various pharmacological activities,including anti-tumor effects.This study explores the anti-tumor effect of LRC on non-small cell lung cancer(NSCLC)and its molecular mechanism using mice bearing Lewis lung carcinoma cells.LRC significantly suppressed the growth of NSCLC.Besides,RNA sequencing of mice tumors and hematoxylin&eosin and immunofluorescence staining revealed that LRC promoted the infiltration of T lymphocytes,specifically GZMB~+CD8~+T lymphocytes,in tumor tissues.The Gene Set Enrichment Analysis of spleen RNA indicated that LRC up-regulated PD-1-downstream pathways,suggesting that LRC exerted its effects through the PDL1/PD-1 pathway.Further experiments revealed that LRC interacted with PD-L1,blocking PD-L1/PD-1 binding and thus restoring the T cell killing activity on tumor cells.Together,these results support using LRC as healthy food to improve anti-tumor immunity in patients with NSCLC.
基金This work was supported by the National Natural Science Foundation of China(82172511)the Natural Science Foundation of Jiangsu Province(BK20210068)+4 种基金the Sanming Project of Medicine in Shenzhen(SZSM201612078)the Health Shanghai Initiative Special Fund[Medical-Sports Integration(JKSHZX-2022-02)]the Top Talent Support Program for Young-and Middle-aged People of Wuxi Municipal Health Commission(HB2020003)the Mega-project of Wuxi Commission of Health(Z202216)the High-end Medical Expert Team of the 2019 Taihu Talent Plan(2019-THRCTD-1)
文摘Dear Editor,Physical exercise has been shown to be associated with reduced cancer incidence and cancer-associated mortality[1,2],but the underlying mechanisms are obscure.Immunometabolic regulation has emerged as one of the most prominent mechanisms explaining the effects of exercise on cancer[1,2].Physical exercise primarily lowers blood cholesterol and triglycerides,and protects against cardiovascular diseases[3].However,whether physical exercise can modulate cholesterol metabolism in tumor cells is currently unknown.
文摘Objective To evaluate the correlation between programmed death-ligand 1 （PD-L1） expression in primary lung cancer cells, tumor associated macrophages （TAM） and patients＇ clinicopathological characteristics. Methods From 2008 to 2010, 208 non-small cell lung cancer patients who underwent surgery or CT-guided biopsy were recruited from Huadong Hospital, Fudan University. Immunohistochemistry staining was performed to evaluate the PD-L1 expression in both primary lung cancer cells and CD68 positive TAM.
文摘Skin reaction or dermatological toxicities induced by immunotherapy is common.It usually manifests skin rash or erythema and can be cured by skin lotion or steroid.Nivolumab,a human IgG4 programmed cell death protein 1(PD-1)inhibitor,blocks T cells activation preventing signal and allows the immune system to clear cancer cells.Nivolumab was approved in the second-line therapy in squamous cell lung cancer by FDA,with less than 10%unusual skin reaction,like sensory neuropathy,peeling skin,erythema multiforme,vitiligo,and psoriasis.Radiotherapy could aggravate this skin reaction through inflammatory response and promotion of immunity.The combined treatment of anti-PD-1 and radiotherapy represented a new promising therapeutic approach in many studies,but the risk of side effects may be high.We reported a patient with advanced squamous cell lung cancer who suffered from serious skin immune-related adverse events when he was treated with nivolumab and radiotherapy.The immune overreaction of the treatment of anti-PD-1 treatment and radiotherapy might cause these serious skin adverse events.Our report warranted careful workup to reduce the risk of side effects by combinative therapy with anti-PD-1 and radiotherapy.
基金Fund supported by the Healthcare Technology Plan of Zhejiang Provincial Health Bureau(No.2016KYB292)the Technology Plan of Science and Technology Bureau of Jiaxing,Zhejiang province(No.2016AY23054)~~
文摘Objective To investigate the expression and regulation of programmed cell death protein 1(PD1),B lymphocyte and T lymphocyte attenuator(BTLA)in peripheral blood of patients with non-small cell lung cancer(NSCLC);to examine the correlation of the mRNA levels between PD and BTLA in NSCLC.Methods Flow cytometry was used to detect the expression of PD1 and BTLA on the surfaces of CD8^+T cells andγδ+T cells in the peripheral blood samples collected from 32 in-patients with stage IV NSCLC and 30 healthy individuals.We compared the expression of PD1 and BTLA on the surfaces ofγδ+T cells in the NSCLC patients with bone metastasis before and after the treatment of zoledronic acid.The correlations of PD1 and BTLA,as well as their ligands were analyzed using Pearson correlation analysis with the cBioPortal data platform.Results The frequency of PD1 on the surfaces of CD8^+T cells was significantly higher than that of theγδT cells in both healthy controls(t=2.324,P=0.024)and NSCLC patients(t=2.498,P=0.015).The frequency of PD1 on CD8^+T cells,rather than onγδ+T cells,was significantly upregulated in advanced NSCLC patients compared with that in healthy controls(t=4.829,P<0.001).The PD1+BTLA+γδT cells of the healthy controls were significantly lower than that of the NSCLC patients(t=2.422,P=0.0185).No differences in percentage of PD1+γδ+and BTLA+γδ+T cells were observed in 7 NSCLC patients with bone metastasis before and after zoledronic acid treatment.PD1 was positively correlated with BTLA in both lung adenocarcinoma(r=0.54;P<0.05)and lung squamous cell carcinoma(r=0.78;P<0.05).Conclusions The upregulation of co-inhibitory molecules occurs on the surfaces of both CD8^+T cells andγδT cells in advanced NSCLC,suggesting that these molecules were involved in regulating the inactivation of CD8^+T cells andγδ+T cells,immune escape and tumor invasion.
文摘Objective:To express two Livin isoforms (Livin α & β genes) with transfection techniques in A549 cell line respectively in order to observe their effect on growth of cell line. Methods:Two eukaryotic expression vectors of Livin, pcDNA3.1-Livin α & β, were transfected into A549 cell line by electroporation. Then G418-resistant clones were screened. RT-PCR, Northern blot and immunofluorescence cytochemistry were used to detect Livin α & β expression level in the transfected cells. Finally, observation of cell morphology, growth curve assay and colony formation analysis were performed to explore the effect of Livin on growth of the cells. Results:Livin α & β were expressed in transfected A549 cells, and induced a faster cell growth, shorter doubling time and stronger cell colony forming ability, yet had no morphology change.Conclusion:Both isoforms can accelerate the growth of A549 cells, indicating a close relationship between Livin expression and the genesis and development of lung cancer. The expression of Livin α & β in A549 cells provides basis for further study of their different biological functions of anti-apoptosis and of their role in lung cancer cell resistance to radiotherapy and chemotherapy.
