scholarly journals The Effects of Moxibustion on PD-1/PD-L1-Related Molecular Expression and Inflammatory Cytokine Levels in RA Rats

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Yumei Zhong ◽  
Deli Lai ◽  
Linlin Zhang ◽  
Wenting Lu ◽  
Yanan Shang ◽  
...  

Objective. Rheumatoid arthritis (RA) is an autoimmune disease that starts with inflammation of the synovium. The pain and joint dysfunction caused by RA urgently need an effective treatment to alleviate the inflammatory reaction and delay the progression of the disease. The pathological damage of RA is proposed to associate with the dysfunction of the programmed cell death 1/programmed cell death ligand 1 (PD-1/PD-L1) pathway. Moxibustion, as a main complementary therapy of traditional Chinese medicine (TCM), has been proved effective to reduce chronic inflammatory reaction on RA, but whether the anti-inflammatory effects are mediated by PD-1/PD-L1 pathway is still unclear. Therefore, moxibustion was conducted in the rats with RA to investigate its effect on PD-1/PD-L1. Methods. The rats' right hind paws were injected with Freundʼs complete adjuvant (FCA) to establish the model of RA. Seven days after the injection of FCA, moxibustion therapy was performed on the acupoints of Shenshu (BL23) and Zusanli (ST36) once a day for three weeks. Then, ELISA and immunohistochemical methods were used to analyze the influence of moxibustion on the expression of PD-1/PD-L1. If the moxibustion had an effect on the expression of PD-1/PD-L1-related molecules, we would knock down PD-1 with adenovirus vector. After moxibustion therapy, ELISA and histological analysis were performed to observe the anti-inflammatory effect of moxibustion. Results. The results demonstrated that moxibustion had an effect on the expression of PD-1-related molecules. The results of ELISA manifested that moxibustion decreased the level of IFN-γ and increased the level of IL-4 and IL-10. HE staining revealed that moxibustion alleviated the proliferation of synovial tissue. However, the anti-inflammatory effect and pathological improvement were weakened when PD-1 was blocked. Conclusions. The results indicate that moxibustion affected the expression of PD-1/PD-L1-related molecules and can effectively treat RA damage. The anti-inflammatory effect of moxibustion was weakened when PD-1 was knocked down.

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Morgana Duarte da Silva ◽  
Giselle Guginski ◽  
Maria Fernanda de Paula Werner ◽  
Cristiane Hatsuko Baggio ◽  
Rodrigo Marcon ◽  
...  

In this study, we determined the anti-inflammatory effect of manual acupuncture at the Sanyinjiao or Spleen 6 (SP6) point on carrageenan-induced peritonitis in mice and investigated mechanisms that may underlie this effect. In the first set of experiments, male Swiss mice were allocated into five groups: the control (sterile saline), dexamethasone (DEXA), invasive sham-acupuncture (non-acupoint), SP6 acupuncture and carrageenan-treated groups. Ten minutes after needle retention or 30 min after DEXA treatment, mice received an intraperitoneal injection of carrageenan (750 μg/mouse). After 4 h, total leukocyte and differential cell counts (neutrophils and mononuclear), myeloperoxidase (MPO) activity, vascular permeability and cytokine levels were evaluated. In another set of experiments, adrenalectomized (ADX) mice were used to study the involvement of the adrenal gland on the therapeutic effects of acupuncture. Mice were allocated into two groups: the ADX and sham-operated animals (Sham ADX) that were subdivided into four subgroups each: the control (sterile saline), DEXA, SP6 acupuncture and carrageenan-treated groups. The SP6 and DEXA treatments inhibited the inflammatory cell infiltration, vascular permeability and MPO activity in carrageenan-injected mice. In addition, the SP6 treatment also increased interleukin (IL)-10 levels. In contrast, when the animals were adrenalectomized, the SP6 treatment failed to reduce total leukocyte and the plasma extravasation. In conclusion, this study clearly demonstrates the anti-inflammatory effect of SP6 acupuncture in a model of carrageenan-induced peritonitis. Our results demonstrated that SP6 acupuncture depends of the adrenal glands and increased IL-10 levels to produce its anti-inflammatory action.


2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 1530-1530
Author(s):  
Ester Oh ◽  
Kristina Petersen ◽  
Penny Kris-Etherton ◽  
Connie Rogers

Abstract Objectives Obesity-induced, chronic, low-grade inflammation is involved in the pathogenesis of cardiovascular disease (CVD). Numerous spices have anti-inflammatory properties in animal models and humans. However, few studies have examined the anti-inflammatory effect of spices in the context of daily meal consumption, which is typically how spices are consumed. The objective of this study was to investigate the anti-inflammatory effect of chronic spice consumption in adults with overweight/obesity at risk for CVD. Methods Nonsmoking adults (30–75 years old) with overweight/obesity (BMI ≥ 25 and ≤ 35 kg/m2), elevated waist circumference (≥94 cm for men and ≥ 80 cm for women) and at least one other risk factor for CVD were recruited for a 3-period, crossover, randomized controlled-feeding study (n = 63). In random order, participants consumed an Average American Diet (AAD) for 4 weeks containing: 1) 0.6 g of spice blend per 2100 kcal, 2) 3.2 g of spice blend per 2100 kcal, or 3) 6.4 g of spice blend per 2100 kcal with a≥2-week washout period between each test period. The spice blend was comprised of 24 popular spices. Blood was collected at baseline and after each test period. Peripheral blood mononuclear cells were isolated, and the % of monocyte subsets (classical; CD14++CD16−, intermediate; CD14++CD16+, non-classical; CD14+CD16++) were quantified using flow cytometry. Plasma pro-inflammatory cytokine levels (TNF-α, IL-1β, IL-6, IL-8, MCP-1) were measured using ELISA. In a subset of participants (n = 6), transendothelial migratory function of each monocyte subset through MCP-1 stimulated human umbilical vein endothelial cells was evaluated. Results Plasma IL-6 was significantly reduced after consuming the AAD containing 3.2 g compared to 0.6 g of spice blend in men and postmenopausal women (P = 0.031). Transendothelial migration of classical monocytes was significantly reduced following consumption of the AAD containing 3.2 g and 6.4 g of the spice blend compared to 0.6 g of spice blend (P = 0.011). Conclusions Consumption of an AAD with spices for 4 weeks attenuated inflammatory outcomes including plasma IL-6 and transendothelial migration of classical monocytes in adults with overweight/obesity. Funding Sources McCormick Science Institute.


2002 ◽  
Vol 11 (2) ◽  
pp. 75-79 ◽  
Author(s):  
Diadelis Remirez ◽  
Ricardo González ◽  
Nelson Merino ◽  
Sandra Rodriguez ◽  
Odelsa Ancheta

The anti-inflammatory effect of microalgae Spirulina was studied in zymosan-induced arthritis in mice. Four days after the intra-articular injection of zymosan (15 mg/ml), Spirulina (100 and 400 mg/kg per-orally) was administered to animals for 8 days. The mice were than killed and β-glucuronidase was measured in the synovial fluid. Each knee joint was totally removed for histopathological studies. Spirulina significantly reduced the levels of β-glucuronidase that had been increased by zymosan. Histopathological and ultrastructural studies showed inhibition of the inflammatory reaction, whereas no destruction of cartilage, well-preserved chondrocytes, and normal rough endoplasmic reticulum and mitochondria were seen. The anti-arthritic effect exerted by Spirulina as shown in this model may be at least partly due to the previously reported anti-inflammatory and antioxidative properties of its constituent, phycocyanin. To our knowledge, this is the first report on the anti-inflammatory effect of Spirulina in an experimental model of arthritis.


2011 ◽  
Vol 213 (3) ◽  
pp. S54-S55
Author(s):  
Sean F. Monaghan ◽  
Rajan K. Thakkar ◽  
Chun S. Chung ◽  
Yaping Chen ◽  
Daithi S. Heffernan ◽  
...  

2018 ◽  
Vol 19 (9) ◽  
pp. 2695 ◽  
Author(s):  
Eun-A Kim ◽  
Yuling Ding ◽  
Hye-Won Yang ◽  
Soo-Jin Heo ◽  
Seung-Hong Lee

Marine-derived extract and/or bioactive compounds have attracted increasing demand due to their unique and potential uses as cures for various inflammation-based diseases. Several studies revealed anti-inflammatory candidates found in soft corals. However, the effects of soft corals on inflammation in an in vivo model remain to be determined. Therefore, the extract of soft coral Dendronephthya puetteri (DPE) was investigated for an in vivo anti-inflammatory effect in a lipopolysaccharide (LPS)-stimulated zebrafish model to determine its potential use as a natural anti-inflammatory agent. We also investigated whether DPE has toxic effects in a zebrafish model. No significant changes were observed in terms of survival, heart beat rate, or developmental abnormalities in the zebrafish embryos exposed to a concentration below 100 µg/mL of DPE. Treating the zebrafish model with LPS-treatment significantly increased the ROS, NO generation, and cell death. However, DPE inhibited this LPS-stimulated ROS, NO generation, and cell death in a dose-dependent manner. In addition, DPE significantly reduced the mRNA expression of both iNOS and COX-2 and markedly suppressed the expression levels of the proinflammatory cytokines, TNF-α and IL-6, in an LPS-stimulated zebrafish model. These findings demonstrate that DPE has profound anti-inflammatory effect in vivo, suggesting that DPE might be a strong natural anti-inflammatory agent.


1996 ◽  
Vol 135 (4) ◽  
pp. 1085-1096 ◽  
Author(s):  
R S Slack ◽  
D J Belliveau ◽  
M Rosenberg ◽  
J Atwal ◽  
H Lochmüller ◽  
...  

Programmed cell death is an ongoing process in both the developing and the mature nervous system. The tumor suppressor gene, p53, can induce apoptosis in a number of different cell types. Recently, the enhanced expression of p53 has been observed during acute neurological disease. To determine whether p53 overexpression could influence neuronal survival, we used a recombinant adenovirus vector carrying wild type p53 to transduce postmitotic neurons. A control consisting of the same adenovirus vector background but carrying the lacZ reporter expression cassette was used to establish working parameters for the effective genetic manipulation of sympathetic neurons. We have found that recombinant adenovirus can be used at titers sufficiently high (10 to 50 multiplicity of infection) to transduce the majority of the neuronal population without perturbing survival, electrophysiological function, or cytoarchitecture. Moreover, we demonstrate that overexpression of wild type p53 is sufficient to induce programmed cell death in neurons. The observation that p53 is capable of inducing apoptosis in postmitotic neurons has major implications for the mechanisms of cell death in the traumatized mature nervous system.


2003 ◽  
Vol 45 (2) ◽  
pp. 107-115 ◽  
Author(s):  
Maria Carla Liberto ◽  
Giovanni Matera ◽  
Angelo G Lamberti ◽  
Giorgio S Barreca ◽  
Angela Quirino ◽  
...  

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