In this study, stable, homogenous and thin titania dioxide coatings (TiO2) on stainless steel substrate doped with two dosages of bioactive sphingolipids S1P were fabricated using the sol-gel method. S1P belongs to a family of sphingolipids acting as important extracellular signaling molecules and chemoattractants. This study investigated the effect of TiO2, doped with S1P in two different dosages on cellular response as well as osteogenic differentiation potential of human adipose derived multipotent stromal stem cells (hASC). The authors have shown that S1P mediates hASCs morphology, proliferation activity and population doubling time in a dose-dependent manner. They have also demonstrated that functionalization of TiO2coating with a higher dosage of S1P, i.e. 80 ng/ml [(TiO2/S1P(CII)] activated both S1PR type 1 and type 2 on mRNA level. The results indicated an increase in secretion of BMP-2, Osteopontin and Osteocalcin by osteoblasts progenitor when cultured on [TiO2/S1P(CIIm)]. In addition, the authors observed the highest extracellular matrix mineralization as well as osteonodules formation by the osteoblasts precursors when cultured onto [TiO2/S1P(CIIm)].
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1177/0885328216628711 | DOI Listing |
Virol J
January 2025
Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China.
Therapeutic human papillomavirus (HPV) DNA vaccine is an attractive option to control existed HPV infection and related lesions. The two early viral oncoproteins, E6 and E7, are continuously expressed in most HPV-related pre- and cancerous cells, and are ideal targets for therapeutic vaccines. We have previously developed an HPV 16 DNA vaccine encoding a modified E7/HSP70 (mE7/HSP70) fusion protein, which demonstrated significant antitumor effects in murine models.
View Article and Find Full Text PDFEur J Med Res
January 2025
Department of Neurosurgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No 17 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, People's Republic of China.
Objective: This study aimed to evaluate CTF1 expression in glioma, its relationship to patient prognosis and the tumor immune microenvironment, and effects on glioma phenotypes to identify a new therapeutic target for treating glioma precisely.
Methods: We initially assessed the expression of CTF1, a member of the IL-6 family, in glioma, using bioinformatics tools and publicly available databases. Furthermore, we examined the correlation between CTF1 expression and tumor prognosis, DNA methylation patterns, m6A-related genes, potential biological functions, the immune microenvironment, and genes associated with immune checkpoints.
Cell Commun Signal
January 2025
Institute of Animal Reproduction and Food Research, Olsztyn, Poland.
Cryopreservation of bull sperm, crucial for breeding and assisted reproduction, often reduces sperm quality due to oxidative stress. This study examines how oxidative stress during cryopreservation affects peroxiredoxin 5 (PRDX5) and peroxiredoxin 6 (PRDX6) proteins, leading to their translocation and oligomerization in bull sperm. Increased reactive oxygen species (ROS) and nitric oxide (NO) levels were linked to reduced mitochondrial potential, higher DNA fragmentation, and increased membrane fluidity, prompting PRDX5 to move intracellularly and PRDX6 to the cell membrane.
View Article and Find Full Text PDFImmun Ageing
January 2025
State Key Laboratory of Genetic Evolution & Animal Models, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, Yunnan, China.
Background: Older people living with HIV-1 (PLWH) experience a dual burden from the combined effects of aging and HIV-1 infection, resulting in significant immune dysfunction. Despite receiving HAART, immune reconstitution is not fully optimized. The objective of this study was to investigate the impact of aging and HAART on T cell subsets and function in PLWH across different age groups, thereby providing novel insights into the prognosis of older PLWH.
View Article and Find Full Text PDFAquaculture is one of the world's fastest-growing sectors in food production but with multiple challenges related to animal handling and infections. The disease caused by infectious salmon anemia virus (ISAV) leads to outbreaks of local epidemics, reducing animal welfare, and causing significant economic losses. The composition of feed has shifted from marine ingredients such as fish oil and fish meal towards a more plant-based diet causing reduced levels of eicosapentaenoic acid (EPA).
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!