scholarly journals BCG immunotherapy inhibits cancer progression by promoting the M1 macrophage differentiation of THP‑1 cells via the Rb/E2F1 pathway in cervical carcinoma

2021 ◽  
Vol 46 (5) ◽  
Author(s):  
Limin Liu ◽  
Wenjuan Shi ◽  
Xiao Xiao ◽  
Xuemei Wu ◽  
Haiyan Hu ◽  
...  
2017 ◽  
Vol 66 (12) ◽  
pp. 1597-1608 ◽  
Author(s):  
Xiao-Long Fu ◽  
Wei Duan ◽  
Chong-Yu Su ◽  
Fang-Yuan Mao ◽  
Yi-Ping Lv ◽  
...  

2021 ◽  
Vol 11 (9) ◽  
pp. 1707-1713
Author(s):  
Jun Wan ◽  
Jian Wang ◽  
Qiurong Huang ◽  
Guanggui Ding ◽  
Xiean Ling

Lung cancer is a most common cancer worldwide. Tumor-associated macrophage (TAM) is known a key effector cell in tumor microenvironment. Meanwhile, STAT6 is crucial to cancer development. We aimed to determine the interaction between STAT6 and TAMs in lung cancer. In this work, firstly, we established mouse model of lung cancer. Then, immunofluorescence was performed to determine STAT6 and CD206 level in lung cancer tissue and adjacent normal tissues as well as model mice. RT-qPCR was applied to detect differentiation of macrophage and determine related gene expression. After treatment of siRNA of STAT6 or STAT6 inhibitor (AS1517499), Transwell assay and MTT were used to determine cell proliferation and migration. STAT6 was upregulated in lung cancer tissues while arginase was more active in M2 macrophage rather than M1 macrophage. Transfection of si-STAT6 not only decreased differentiation in M2 macrophage but also inhibited proliferative, migratory and invasive ability of cancer cells while AS1517499 led to reduced tumor growth. STAT6 inhibition caused decreased expression of M2 macrophages. Similarly, intratumoral T cell markers showed that CD8+T cell gene expression and CD4-mediated T cell marker FoxP3 was increased slightly. Taken altogether, macrophage-STAT6 promotes cell migration and proliferation in lung cancer.


Cells ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 938
Author(s):  
Yi-Hsuan Lin ◽  
Yi-Hsun Wang ◽  
Yi-Jen Peng ◽  
Feng-Cheng Liu ◽  
Gu-Jiun Lin ◽  
...  

Interleukin 26 (IL-26) is a new member of the IL-10 family that is highly expressed in rheumatoid arthritis (RA). However, the functions of IL-26 produced by macrophages in RA have not been elucidated. In the present work, we evaluated the effects and the mechanisms of IL-26 on M1 and M2 macrophage differentiation. Human or mouse macrophage cells were treated with lipopolysaccharides (LPS), interferon gamma (IFNγ), or IL-4 alone or concurrently treated with IL-26 to monitor M1 or M2 macrophage subtypes. The expression level of M1 or M2 macrophage genes was evaluated by reverse transcription polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA). The molecular mechanisms of downstream signaling activation during differentiation were investigated by immunoblotting assay. Our results found that IL-26 promoted macrophage cells from CD80+ M1 macrophage differentiation, not from the CD206+ M2 phenotype. The messenger RNA of M1-type macrophage markers tumor necrosis factor alpha (TNFα) and inducible nitric oxide synthase (iNOS) was up-regulated in the IL-26-treated group. Also, the M1-related proinflammatory cytokines TNFα and IL-6 were induced after IL-26 stimulation. Interestingly, IL-10, a cytokine marker of M2 macrophage, was also elevated after IL-26 stimulation. Moreover, the M1-like macrophage stimulated by IL-26 underwent cJUN, nuclear factor kappa B (NF-κB), and signal transducer and activator of transcription 1 (STAT1) activation. Our findings suggested the role of IL-26 in synovial macrophages of active rheumatoid arthritis and provided a new insight into IL-26 as a candidate therapeutic target in rheumatoid arthritis.


2009 ◽  
Vol 19 (2) ◽  
pp. 273-276 ◽  
Author(s):  
Angela Boyd ◽  
Valerie Cowie ◽  
Charlie Gourley

Background:Cervical cancer is one of the most frequently encountered malignancies in pregnancy. For early-stage disease arising in late second/third trimester, treatment may be delayed until delivery. However, in advanced disease, data are lacking.Case:A 26-year-old woman presented at 21 weeks gestation with a stage IIB high-grade clear cell cervical carcinoma. At 25 + 1 weeks gestation, cisplatin 100 mg/m2 every 21 days was commenced. One month after cycle 3, a healthy infant was delivered. Thereafter, further cisplatin, intracavity cesium, and chemoradiation were administered. Findings from subsequent clinical examination and magnetic resonance imaging were normal. Fifteen months post treatment, both patient and baby remain well.Conclusion:Neoadjuvant cisplatin chemotherapy can be used in stage IIB cervical carcinoma during pregnancy to allow fetal development and prevent disease progression before delivery.


2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Haiying Hu ◽  
Guangtai Zhang ◽  
Huanli Hu ◽  
Wenjing Liu ◽  
Jixiang Liu ◽  
...  

Background. Interleukin- (IL-) 18 is a proinflammatory cytokine related to cardiovascular diseases, including hypertension and atherosclerosis. This study is aimed at determining whether IL-18 is related to aortic dissection (AD) and identifying the underlying mechanisms. Methods. IL-18 expression in human aorta samples from AD (n=8) and non-AD (NAD, n=7) patients was measured. In addition, the IL-18, IL-6, interferon- (IFN-) γ, and IL-18-binding protein (IL-18BP) concentrations in plasma samples collected from the NAD and AD patients were detected. The effects of IL-18 on macrophage differentiation and smooth muscle cell (SMC) apoptosis were investigated in vitro. Results. IL-18 expression was significantly increased in the aorta samples from the AD patients compared with those from the NAD patients, especially in the torn section. Aortic IL-18 was mainly derived from macrophages and also partly derived from CD4+ T lymphocytes and vascular SMCs. Plasma IL-18, IFN-γ, and IL-6 levels were significantly higher in the AD group than in the NAD group, and the IL-18 levels were positively correlated with the IFN-γ and IL-6 levels. In addition, plasma IL-18BP and free IL-18 levels were also elevated in the AD group. Linear regression analysis showed that the IL-18 level was independently associated with the presence of AD. In addition, anti-mouse IL-18-neutralizing monoclonal antibodies (anti-IL-18 nAb) inhibited angiotensin II-induced M1 macrophage differentiation and SMC apoptosis in vitro. Conclusion. IL-18 may participate in AD by regulating macrophage differentiation and macrophage-induced SMC apoptosis.


2020 ◽  
Author(s):  
Haofan Yin ◽  
Zhijian Huang ◽  
Zhikun Wu ◽  
Xuepin Lin ◽  
Chunguang Di ◽  
...  

Abstract Background: Far upstream element-binding protein 1 (FUBP1) has been shown to involve in the tumorigenesis and tumor progression of various cancers. However, the expression and function of FUBP1 in cervical carcinoma remains unknown.Methods: Transcriptional expression of FUBP1 was initially evaluated using the Oncomine database, followed by evaluation of FUBP1 protein levels using immunohistochemistry in 119 cervical carcinoma patient tissues. In vitro experiments were performed to assess the tumorigenic role of FUBP1. Besides, Gene Set Enrichment Analysis, EnrichmentMap analysis, and protein-protein interaction (PPI) networks were used to evaluate the potential mechanisms of FUBP1 in promoting cervical cancer progression.Results: In this research, we found both FUBP1 mRNA transcription and protein expression levels increased significantly in cervical carcinoma tissues compared with adjacent normal cervical tissues. Furthermore, elevated FUBP1 expression was positively correlated with age, T classification, N classification, tumor recurrence, Ki67 expression, and poor prognosis in cervical carcinoma patients. Besides, elevated FUBP1 expression acted as an independent unfavorable predictor for overall survival and disease-free survival in cervical carcinoma. Overexpression of FUBP1 significantly promoted cervical carcinoma cell proliferation and inhibits cell apoptosis in vitro, while knockdown of FUBP1 showed the opposite effect. Mechanistically, bioinformatics analysis revealed that FUBP1 promoted the biological function of cervical carcinoma cells via enhancing DNA repair signal pathways. Conclusions: our results demonstrate for the first time that FUBP1 is a novel prognostic factor and therapeutic target for cervical carcinoma.


2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Jianwei Zhang ◽  
Zicong Yang ◽  
Zhishan Liang ◽  
Mengjie Wang ◽  
Changxing Hu ◽  
...  

Background. Interleukin-16 (IL-16) is an important inflammatory regulator and has been shown to have a powerful effect on the regulation of the inflammatory response. Cardiac inflammation has been reported to be closely related to doxorubicin- (DOX-) induced cardiac injury. In this study, the role of IL-16 in DOX-induced cardiac injury and the possible mechanisms were examined. Methods. Cardiac IL-16 levels were first measured in DOX- or saline-treated mice. Additionally, mice were pretreated with the anti-IL-16-neutralizing antibody (nAb) or isotype IgG for 1 day and further administered DOX or saline for 5 days. Then, cardiac injury, cardiac M1 macrophage levels, and cardiomyocyte apoptosis were analyzed. The effects of the anti-IL-16 nAb on macrophage differentiation and cardiomyocyte apoptosis were also investigated in vitro. Results. DOX administration increased IL-16 expression in cardiac macrophages compared with that of saline treatment. The anti-IL-16 nAb significantly decreased serum levels of lactate dehydrogenase (LDH), myocardial-bound creatine kinase (CK-MB), and cardiac troponin T (cTnT) and elevated cardiac function in DOX-induced mice. Treatment with the anti-IL-16 nAb also reduced p65 pathway activation, decreased M1 macrophage-related marker and cytokine expression, and protected against cardiomyocyte apoptosis in DOX-induced mice. In cell studies, the anti-IL-16 nAb also reduced DOX-induced M1 macrophage differentiation and alleviated apoptosis in cardiomyocytes cocultured with macrophages. Conclusions. The anti-IL-16 nAb protects against DOX-induced cardiac injury by reducing cardiac inflammation, and IL-16 may be a promising target to prevent DOX-related cardiac injury.


2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Jin-Won Seo ◽  
Eun-Jeong Yang ◽  
Kyung-Hwa Yoo ◽  
In-Hong Choi

LDL plays an important role in atherosclerotic plaque formation and macrophage differentiation. However, there is no report regarding the oxidation degree of LDL and macrophage differentiation. Our study has shown that the differentiation into M1 or M2 macrophages is related to the lipid oxidation level of LDL. Based on the level of lipid peroxidation, LDL is classified into high-oxidized LDL (hi-oxLDL) and low-oxidized LDL (low-oxLDL). The differentiation profiles of macrophages were determined by surface receptor expression and cytokine secretion profiles. Low-oxLDL induced CD86 expression and production of TNF-αand IL-12p40 in THP-1 cells, indicating an M1 macrophage phenotype. Hi-oxLDL induced mannose receptor expression and production of IL-6 and monocyte chemoattractant protein-1, which mostly match the phenotype of M2 macrophages. Further supporting evidence for an M2 polarization by hi-oxLDL was the induction of LOX-1 in THP-1 cells treated with hi-oxLDL but not with low-oxLDL. Similar results were obtained in primary human monocytes. Therefore, our results strongly suggest that the oxidation degree of LDL influences the differentiation of monocytes into M1 or M2 macrophages and determines the inflammatory fate in early stages of atherosclerosis.


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