TNF- α-elicited miR-29b potentiates resistance to apoptosis in peripheral blood monocytes from patients with rheumatoid arthritis

AbstractCD14-positive monocytes from patients with rheumatoid arthritis (RA) are more resistant to apoptosis, which promotes their persistence at the inflammatory site and thereby contributes crucially to immunopathology. We sought to elucidate one mechanism underlying this unique pathogenesis: resistance to apoptosis and the potential involvement of miR-29b in this process. CD14-positive peripheral blood monocytes (PBMs) from RA patients were observed to be resistant to spontaneous apoptosis compared to PBMs from healthy volunteers. Intriguingly, expression of miR-29b was significantly upregulated in PBMs from RA patients than those from healthy volunteers, and this upregulation was correlated with RA disease activity. Functionally, forced expression of the exogenous miR-29b in CD14-positive Ctrl PBMs conferred resistance to spontaneous apoptosis and Fas-induced death, thereafter enhancing the production of major proinflammatory cytokines in there cells. Following identification of the potential miR-29b target transcripts using bioinformatic algorithms, we showed that miR-29b could directly bind to the 3 ′-UTR of the high-mobility group box-containing protein 1 (HBP1) and inhibited its transcription in PBMs. Importantly, stable expression of the exogenous HBP1 in differentiated THP-1 monocytes effectively abolished miR-29b-elicited resistance to Fas-induced apoptosis. Finally, among patients with RA and good clinical responses to immunotherapy, expression levels of miR...
Source: Apoptosis - Category: Molecular Biology Source Type: research

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This study, for the first time, shows that transplantation of non-autologous mitochondria from healthy skeletal muscle cells into normal cardiomyocytes leads to short-term improvement of bioenergetics indicating "supercharged" state. However, over time these improved effects disappear, which suggests transplantation of mitochondria may have a potential application in settings where there is an acute stress. Outlining Some of the Science Behind Partial Reprogramming at Turn.bio https://www.fightaging.org/archives/2020/03/outlining-some-of-the-science-behind-partial-reprogramming-at-turn-bio/ Tur...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
The Micro-Immunotherapy Medicine 2LARTH® Reduces Inflammation and Symptoms of Rheumatoid Arthritis In Vivo. Int J Rheumatol. 2020;2020:1594573 Authors: Floris I, García-González V, Palomares B, Appel K, Lejeune B Abstract Background: Rheumatoid arthritis (RA) is a chronic inflammatory joint disease, which can cause cartilage and bone damages as well as pain and disability. In order to prevent disease progression, reduce pain, and major symptoms of RA, one good strategy consists in targeting proinflammatory cytokines that have the key role in the vicious circle of synovial inflammation...
Source: International Journal of Rheumatology - Category: Rheumatology Tags: Int J Rheumatol Source Type: research
Radiopharmaceutical developer Navidea Biopharmaceuticals announced that it...Read more on AuntMinnie.comRelated Reading: Navidea claims victories in legal case with former CEO Navidea signs immunotherapy deal with IMV Navidea highlights rheumatoid arthritis results Navidea teams up with UAB to win NIH grant Navidea posts Q2 revenue decreases
Source: AuntMinnie.com Headlines - Category: Radiology Source Type: news
The barrier between mind and body appears to be crumbling. Clinical practice and public perception need to catch upUnlikely as it may seem, #inflammation has become a hashtag. It seems to be everywhere suddenly, up to all sorts of tricks. Rather than simply being on our side, fighting infections and healing wounds, it turns out to have a dark side as well: the role it plays in causing us harm.It ’s now clear that inflammation is part of the problem in many, if not all, diseases of the body. And targeting immune or inflammatory causes of disease has led to a series of breakthroughs, from new treatments for rheumatoid ...
Source: Guardian Unlimited Science - Category: Science Authors: Tags: Mental health Psychiatry Multiple sclerosis Depression Dementia Society Medical research Science UK news Alzheimer's Parkinson's disease Schizophrenia Source Type: news
Radiopharmaceutical developer Navidea Biopharmaceuticals is claiming victories...Read more on AuntMinnie.comRelated Reading: Navidea signs immunotherapy deal with IMV Navidea highlights rheumatoid arthritis results Navidea teams up with UAB to win NIH grant Navidea posts Q2 revenue decreases Navidea readies public stock offering
Source: AuntMinnie.com Headlines - Category: Radiology Source Type: news
CONCLUSIONS: RA is an independent risk factor for CAD, which mainly results from the underlying inflammatory cascade; therefore, anti-inflammatory therapy, especially the emerging novel biologic drugs, is important for CAD management in patients with RA and may also be a promising approach among the general population. PMID: 31855971 [PubMed - as supplied by publisher]
Source: Chinese Medical Journal - Category: General Medicine Authors: Tags: Chin Med J (Engl) Source Type: research
AbstractPurpose of ReviewDrug-induced interstitial lung disease (DI-ILD) is a very challenging topic both clinically and academically. With the advent of new immunotherapy and ever-growing arsenal of chemotherapeutic and biologic agents for a variety of conditions, it is paramount for the clinician to assess for the development of pulmonary toxicity before irreversible lung damage occurs. In this review, we have summarized the literature and describe the most commonly implicated agents and also describe new and rare causes of DI-ILD.Recent FindingsBleomycin and amiodarone remain the most frequent culprits of DI-ILD. Protea...
Source: Current Respiratory Care Reports - Category: Respiratory Medicine Source Type: research
This study demonstrates for the first time that senescent cells secrete functional LTs, significantly contributing to the LTs pool known to cause or exacerbate idiopathic pulmonary fibrosis. Against Senolytics https://www.fightaging.org/archives/2019/11/against-senolytics/ There is no consensus in science that is so strong as to have no heretics. So here we have an interview with a naysayer on the matter of senolytic treatments, who argues that the loss of senescent cells in aged tissues will cause more harm to long-term health than the damage they will do by remaining. To be clear, I think this to be a ...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Radiopharmaceutical developer Navidea Biopharmaceuticals has signed an agreement...Read more on AuntMinnie.comRelated Reading: Navidea highlights rheumatoid arthritis results Navidea teams up with UAB to win NIH grant Navidea posts Q2 revenue decreases Navidea readies public stock offering Navidea points to upcoming study on TB probe
Source: AuntMinnie.com Headlines - Category: Radiology Source Type: news
In conclusion, a polypharmacology approach of combining established, prolongevity drug inhibitors of specific nodes may be the most effective way to target the nutrient-sensing network to improve late-life health. Deletion of p38α in Neurons Slows Neural Stem Cell Decline and Loss of Cognitive Function in Mice https://www.fightaging.org/archives/2019/10/deletion-of-p38%ce%b1-in-neurons-slows-neural-stem-cell-decline-and-loss-of-cognitive-function-in-mice/ Researchers here provide evidence for p38α to be involved in the regulation of diminished neural stem cell activity with age. It is thought...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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