Tumor-associated macrophages (TAMs) are present in the tumor microenvironment and can polarize into subtypes with different functions and characteristics in response to different stimuli, classifying them into anti-tumorigenic M1-type and pro-tumorigenic M2-type. The M1-type macrophages inhibit tumor growth through the release of pro-inflammatory cytokines, whereas the M2-type macrophages contribute to tumor progression through the promotion of tumor proliferation, angiogenesis and metastasis. Due to the duality of macrophage effects on tumors, TAMs have been a hot topic in tumor research. In this paper, the heterogeneity and plasticity of TAMs, the interactions between TAMs and other immune cells, and the effects of TAMs on tumors are reviewed, and the therapeutic strategies for TAMs are summarized and discussed. These therapeutic strategies encompass methods and approaches to inhibit the recruitment of TAMs, deplete TAMs, and modulate the polarization of TAMs. These studies help to deeply understand the mechanism of TAMs-tumor interaction and provide reference for combination therapy of tumors.
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http://dx.doi.org/10.3389/fimmu.2024.1476565 | DOI Listing |
Sci Rep
December 2024
School of Materials Science and Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China.
The welding of titanium alloys is an important topic in today's industrial field, and the interaction between the solder and the base material is crucial for the quality of the welded parts. The structural, elastic, electronic, and thermal properties of Ti-Al-Me (Me = Cu, Fe and Ni) alloys (TAMs) with the face-centered cubic structures were investigated using plane-wave pseudo potential method in the framework of density functional theory. Based on the calculated elastic constants combined with empirical and semi-empirical formulas, physical properties including ductility/brittleness, hardness and anisotropy were calculated.
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December 2024
Department of Dermatology, Hebei Medical University Third Hospital, 139 Ziqiang Road, Shijiazhuang, 050000, Hebei, China.
To investigate CHD1L's impacts and molecular processes in hypoxic cutaneous squamous cell carcinoma. Monoclonal proliferation assays and CCK-8 were used to detect the proliferation capacity of A431 cells and Colon16 cells; wound healing experiments and Transwell assays were used to examine the migration and invasion capacity of A431 cells and Colon16 cells; angiogenesis experiments were conducted to assess the influence of A431 cells on angiogenesis; a nude mouse tumor xenograft experiment and HE staining were utilized to evaluate the impact of CHD1L on the progression of cutaneous squamous cell carcinoma; western blot analysis was performed to detect the expression of p-PI3K, p-AKT, and PD-L1 in A431 cells, as well as CD9, TSG101, PD-L1 in exosomes, and CD206, Arginase-1, iNOS, IL-1β, p-AKT, p-mTOR, VEGF, COX-2, MMP2, MMP9, p-ERK1/2 in tumor-associated macrophages. Under hypoxic conditions, CHD1L promoted the proliferation, migration, invasion, and angiogenesis of cutaneous squamous cell carcinoma.
View Article and Find Full Text PDFCancer Genomics Proteomics
December 2024
Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan;
Background/aim: α1-Acid glycoprotein (AGP), also known as orosomucoid, is an acute-phase protein that has been found increased in plasma of cancer patients. This study investigates the role of AGP expression in clear cell renal cell carcinoma (ccRCC) and its association with clinical outcomes.
Materials And Methods: We investigated the correlation between AGP levels and the prognosis of ccRCC through an analysis of The Cancer Genome Atlas (TCGA) database.
Biomaterials
December 2024
School of Life Sciences, Faculty of Medicine, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin, 300072, China.
In the immunosuppressive tumor microenvironment (TME), tumor-associated macrophages (TAMs) predominantly exhibit an immunosuppressive M2 phenotype, which facilitates tumor proliferation and metastasis. Although current strategies aimed at reprogramming TAMs hold promise, their sustainability and effectiveness are limited due to repeated injections. Herein, a bacterial therapy platform containing two engineered strains was developed.
View Article and Find Full Text PDFCurr Issues Mol Biol
November 2024
Research Assistant Center, Show Chwan Memorial Hospital, No. 542, Section 1, Zhongshan Road, Changhua 500, Taiwan.
(1): Triple-negative breast cancer (TNBC) is an especially aggressive form of breast cancer defined by a poor prognosis and a lack of effective treatment options. There is a pressing need for validated predictive and prognostic biomarkers to assist in making treatment decisions and improve the prognostic accuracy for patients with this challenging disease. (2): We analyzed the RNA-seq data from three TNBC tissue samples alongside their corresponding normal tissues.
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