Effect of Lipopolysaccharide on Cell Proliferation and Vascular Endothelial Growth Factor Secretion of Periodontal Ligament Stem Cells

ConclusionsLPS reduced cell proliferation and VEGF secretion of PDLSCs, suggesting that periodontal pathogens might reduce the capability of PDLSCs in periodontal regeneration. Yet, LPS treated PDLSCs remained viable and VEGF secretion increased significantly over time. Further research is needed to study the potential use of PDLSCs in periodontal regeneration and the relationship of biofilm LPS accumulations.
Source: The Saudi Dental Journal - Category: Dentistry Source Type: research

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In conclusion, our data show how oncogenic and tumor-suppressive drivers of cellular senescence act to regulate surveillance processes that can be circumvented to enable SnCs to elude immune recognition but can be reversed by cell surface-targeted interventions to purge the SnCs that persist in vitro and in patients. Since eliminating SnCs can prevent tumor progression, delay the onset of degenerative diseases, and restore fitness; since NKG2D-Ls are not widely expressed in healthy human tissues and NKG2D-L shedding is an evasion mechanism also employed by tumor cells; and since increasing numbers of B cells express NKG2D ...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
This study provides further evidence for the characterization of cellular aging as a general process, affecting prokaryotes and eukaryotes alike and according to similar evolutionary constraints. Link: https://doi.org/10.1371/journal.pbio.3000266
Source: Fight Aging! - Category: Research Authors: Tags: Daily News Source Type: blogs
This study provides further evidence for the characterization of cellular aging as a general process, affecting prokaryotes and eukaryotes alike and according to similar evolutionary constraints.
Source: PLoS Biology: Archived Table of Contents - Category: Biology Authors: Source Type: research
Conclusion and Future Perspectives This review illustrates our current knowledge of USP7, including its source and characterization, structure, binding partners and substrates in various biological processes. Besides, how USP7 regulates various aspects of a cell under both normal and pathological states are elaborated in detail. As the processes of ubiquitination and deubiquitination are extremely dynamic and context-specific, a series of studies have linked USP7 to different cancers. The biology, particularly the immune oncology mechanisms, reveal that USP7 inhibitors would be useful drugs, thus it is vital to develop hi...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
Conclusion In this study, we described two efficient PmCDA1-based CBE systems, SpCas9n-pBE and VQRn-pBE, that will help to expand the scope of cytosine base editing in rice. The effective deamination window typically spanned positions 1–7 of the protospacer and the target single C showed the highest editing frequency at or near position 3. The mutant genotypes were mainly single or double C-to-T substitutions. Furthermore, the editing efficiency of VQRn-pBE was increased by the modified sgRNA. These base editors will be useful tools for scientific research and crop breeding in rice. Author Contributions JY, CZ, an...
Source: Frontiers in Genetics - Category: Genetics & Stem Cells Source Type: research
Giuseppe Ristagno1*, Francesca Fumagalli1, Barbara Bottazzi2, Alberto Mantovani2,3,4, Davide Olivari1, Deborah Novelli1 and Roberto Latini1 1Department of Cardiovascular Research, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy 2Humanitas Clinical and Research Center-IRCCS, Milan, Italy 3Humanitas University, Milan, Italy 4The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom The long pentraxin PTX3 is a member of the pentraxin family produced locally by stromal and myeloid cells in response to proinflammatory signals and microbial moieties. The p...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
This study was carried out in accordance with the recommendations of the Case Western Reserve University IACUC committee. The protocol was approved by the Case Western Reserve University IACUC committee. Author Contributions LRD and DW helped design research studies, analyze data and write the manuscript. ZL, RL, and ND conducted experiments, acquired and analyzed data, and assisted with manuscript preparation. LDM conducted experiments and analyzed data. FC assisted with research design. Funding This work was supported by the NIH P30CA043703, K1CA113838, and R01DK081395. Conflict of Interest Statement The authors de...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Conclusion: Bypass of tolerance by DAMPs might be a phenomenon as important as TI, since it could explain how chronic inflammation can be maintained in spite of an environment with multiple TLR2/TLR4-ligands. In RA monocytes, a PRDM8-dependent TI mechanism could be responsible for sustained chemokine/cytokines levels. Introduction Monocytes and macrophages play a central role in the pathophysiology of inflammation. For instance, in rheumatoid arthritis (RA), activated monocytes massively infiltrate synovial tissues and produce tumor necrosis factor-α (TNFα) (1–3). Accordingly, therapies aimed at b...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
In this study they also showed PTX3 localized in NETs formed after neutrophil activation (5). Proteomics analysis revealed that PTX3 forms complexes with two anti-microbial proteins [azurocidin (AZU1) and myeloperoxidase (MPO)] associated to NETs (30). More recently, PTX3 localization in NETs has been confirmed, and the colocalization with AZU1 and MPO has been defined more accurately (31). Further investigation will be needed to understand the involvement of PTX3 interaction with AZU1 and MPO in their antibacterial role during NET formation. Regulation of Complement Activation PTX3 interaction with microorganisms is not...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Conclusions The current review reports recent epidemiological and experimental data supporting the bright future of dietary polyphenols as chemopreventive, anti-inflammatory, immunomodulatory, and anticancer agents in CRC (Figure 1). The polyphenol-rich diet not only may represent a chemopreventive treatment but also has important function on immune system by promoting symbiont and commensal bacterial populations, increases reciprocal interaction between host and microbiota which in turn have important effects on immune function Evidence underlines the use of polyphenols as sensitizers of chemo/radiotherapies paving the w...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
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