RESUMO
Aim To explore the effect of Taohong Siwu Decoction on apoptosis and EMT of pulmonary fibrosis model rats by JAK2/STAT3 signaling pathway. Methods Forty SD rats were randomly divided into control group, model group, methylprednisolone group, Taohong Siwu Decoction low-concentration, high-concentration group respectively, with eight cases in each group. The intratracheal injection of bleomycin was applied to induce IPF rat models. HE and Masson staining were performed to observe the pathological changes of lung tissues in each group. ELISA was used to detect the contents of TNF-α, MMP-7 and TGFβ-l in serum of rats. Immunohistochemistry and Western blot were applied to detect the protein expression of JAK2, pJAK2, STAT3, p-STAT3, E-cadherin, α-SMA in lung tissues. RT-PCR was applied to detect the expression of JAK2, STAT3, Bcl2 and Bax genes in lung tissues. Results Compared with control group, the degree of alveolar inflammation and fibrosis degree, the contents of TNF-α, MMP-7 and TGFβ-1 in serum, the levels of JAK2, p-JAK2, STAT3, p-STAT3, α-SMA protein expression, JAK2, STAT3, Bax gene expression were up-regulated, and the levels of Bcl-2 gene and E-cadherin protein expression were down-regulated in lung tissues. Compared with model group, the degree of alveolar inflammation and fibrosis, the contents of TNF-α, MMP-7 and TGFβ-1 in serum, the levels of JAK2, p-JAK2, STAT3, p-STAT3, α-SMA protein expression, JAK2, STAT3 and Bax gene expression were reduced, while the levels of Bcl-2 gene and E-cadherin protein expression were elevated in Taohong Siwu Decoction high-concentration group. Conclusions Taohong Siwu Decoction may regulate JAK2/STAT3 signaling pathway, down-regulate Bax, α-SMA and up-regulate Bcl-2, E-cadherin expression to induce apoptosis and EMT in rat model of pulmonary fibrosis, thus playing an anti-pulmonary fibrosis role.
RESUMO
Idiopathic pulmonary fibrosis （IPF） is a common， lethal interstitial lung disease characterized by airway remodeling， inflammation， alveolar destruction， and fibrosis. The mammalian target of rapamycin complex 1/4E binding protein 1 （mTORC1/4E-BP1） axis is closely related to the expression of collagen by fibroblasts， and its role in pulmonary fibrosis remains to be further elucidated. Traditional Chinese medicine （TCM） has shown promising efficacy in improving the lung function， exercise capacity， and quality of life in patients with IPF. The theory of "same treatment for different diseases" provides a TCM theoretical basis for the treatment of pulmonary fibrosis with Bupleuri Radix， while the research in western medicine has preliminarily shown that both the formulation and single herb as well as the active ingredients of Bupleuri Radix have good therapeutic effects on pulmonary fibrosis. Therefore， this review will elaborate on the role of the mTORC1/4E-BP1 axis in the pathomechanism of IPF， as well as the research results of the active components of Bupleuri Radix on the phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin protein（PI3K/AKT/mTOR） pathway， so as to provide a reference for the treatment and drug development of IPF.
RESUMO
<p><b>OBJECTIVE</b>To evaluate the clinical efficacy and safety of Qiangji Recipe (QR) in ad- junctive treatment of axial undifferentiated spondyloarthritis (axuSpA) through a four-week open study.</p><p><b>METHODS</b>Fifty-four axuSpA patients of Shen-deficiency Du-channel cold syndrome (SDDCS) in line with inclusive criteria were recruited and assigned to the treatment group and the control group according to random digit table, 27 in each group. Patients in the control group took Celecoxib Capsule (0.2 g each time, twice per day). Patients in the treatment group additionally took QR (consisting of Herba Epimedii 15 g, antler glue 15 g, Cibotium Barometz 15 g, eucommia bark 20 g, dipsacus asper 10 g, two toothed achyranthes root 15 g, drynaria 15 g, Taxillus Chinensis 20 g, ground beetle 10 g, scorpion 5 g, wild celery 10 g, notopterygium incisium 10 g, cow-fat seed 10 g, white mustard seed 6 g, and licorice root 6 g, one dose per day, twice daily). The therapeutic course for all was 4 weeks. The Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), the Bath Ankylosing Spondylitis Functional Index (BASFI), the Bath AS Metrology Index (BASMI), total body pain and spinal pain, patient and physician global assessment on a four-point scale, the Ankylosing Spondylitis Quality of Life (ASQoL), erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) were measured before and after 4 weeks of treatment. The primary end point in this study was the proportion of patients with a 20%improvement response accord- ing to the ASAS International Working Group Criteria (ASAS 20 responders) at week 4.</p><p><b>RESULTS</b>Totally 50 patients completed this trial, 26 in the treatment group and 24 in the control group. Improvement of BASDAI, BASFI, BASMI, ASQoL, ESR, and CRP was shown in both groups after treatment. Better effect was shown in the treatment group in all indices except ESR and BASMI after treatment (P < 0.05, P < 0.01). Twenty cases (accounting for 76.92%) in the treatment group achieved ASAS 20 response at week 4, while 12 cases (accounting for 50.00%) in the control group achieved ASAS 20 response at week 4 (P < 0.05). No obvious adverse reaction occurred in the two groups.</p><p><b>CONCLUSION</b>QR combined Celecoxib Capsule showed better effect in treating axuSpA patients than using Celecoxib Capsule alone.</p>