Lactiplantibacillus plantarum HG20 attenuates II type collagen-induced rheumatoid arthritis in rats via anti-inflammatory and inhibition of apoptosis

Abstract

Aims: This study aimed to explore the therapeutic effects of Lactiplantibacillus plantarum HG20 (HG20) on collagen-induced arthritis (CIA) rats and its mechanism. Methods and Results: CIA rats were established by injecting bovine type II collagen for 7 days, and treated by intragastric administration HG20 for 21 days. The foot palm temperature and arthritis score were measured once a week. The pathological changes in the knee joint were observed by hematoxylin and eosin staining.The levels of cytokines were detected by enzyme linked immunosorbent assay, and the effects of HG20 on inflammatory and apoptosis pathway of spleen cells were detected by western blot analysis. The results indicated that HG20 reduced the joint swelling degree and foot palm temperature, inhibited the development of joint histopathology, decreased the levels of pro-inflammatory cytokines, down-regulate the expression of pro-inflammatory cytokines by nuclear factor kappa-B pathway, and inhibited the apoptosis of spleen cells by inhibiting phosphatidylinositol 3-kinase/ protein kinase B pathway and regulating apoptosis pathways.Conclusions: HG20 had an adjuvant therapeutic effect on arthritis in CIA rats, and its mechanism might be related to the inflammatory and apoptosis pathway. Significance and Impact of Study: These results revealed that HG20 could be used as a functional probiotic in the field of food and medical, and which played a potential role in the prevention and treatment of arthritis.

Bifidobacterium longum subsp. infantis B6MNI Alleviates Collagen-Induced Arthritis in Rats via Regulating 5-HIAA and Pim-1/JAK/STAT3 Inflammation Pathways

“…Indeed, in recent years, an increasing amount of research has shown that intervention with probiotics has a positive effect on the treatment of RA . Administration of Lactobacillus plantarum HG20 in collagen-induced arthritis (CIA) rats significantly reduced joint swelling and downregulated inflammatory and apoptotic pathways of splenic cells . The administration of Bifidobacterium breve CCFM1078 was shown to repair the intestinal barrier of CIA rats, reduce LPS translocation from the intestine, and alleviate inflammation in the spleen via the TLR4-MyD88 pathway .…”

“…11 Administration of Lactobacillus plantarum HG20 in collagen-induced arthritis (CIA) rats significantly reduced joint swelling and downregulated inflammatory and apoptotic pathways of splenic cells. 12 The administration of Bifidobacterium breve CCFM1078 was shown to repair the intestinal barrier of CIA rats, reduce LPS translocation from the intestine, and alleviate inflammation in the spleen via the TLR4-MyD88 pathway. 13 In RA patients, the administration of the probiotic mixture Lactobacillus acidophilus La-14, Lactobacillus casei Lc-11, Lactococcus lactis Ll-23, Bifidobacterium lactis Bl-04, and Bifidobacterium bifidum Bb-06 significantly reduced the white blood cell count, TNF-α, and IL-6 levels in the plasma.…”