PMID- 31354164 OWN - NLM STAT- MEDLINE DCOM- 20200214 LR - 20200225 IS - 1643-3750 (Electronic) IS - 1234-1010 (Print) IS - 1234-1010 (Linking) VI - 25 DP - 2019 Jul 29 TI - Emodin Alleviates the Airway Inflammation of Cough Variant Asthma in Mice by Regulating the Notch Pathway. PG - 5621-5629 LID - 10.12659/MSM.915080 [doi] AB - BACKGROUND This study investigated the effects and underlying mechanisms of emodin on cough variant asthma (CVA) in mice. MATERIAL AND METHODS The bronchial asthma mouse model was successfully established by use of ovalbumin (OVA) sensitization and challenge. The BALB/c mice were divided into 6 groups: a control group, an OVA model without or with emodin (15, 30, 60 mg/kg) group, and a dexamethasone (0.5 mg/g) group. The effect of the treatment was determined by measuring airway responsiveness. The levels of immunoglobulin molecules, as well as inflammatory cytokines in bronchoalveolar lavage fluid (BALF) and serum, were determined by ELISA. The lung tissues were stained by hematoxylin-eosin (HE). The expressions of Notch receptors (Notch 1-3) and Delta-like (DLL) 4 in the lung tissues were detected by RT-PCR and Western blot analysis. RESULTS Compared with the model group, emodin treatment significantly increased the levels of immunoglobulin E (IgE) and IgG1/IgG2a in BALF and serum (p<0.05). HE results indicated that emodin inhibited the infiltration of inflammatory cells and that emodin reduced the levels of inflammatory cytokines, interleukin (IL)-5, IL-17, and interferon (IFN)-gamma in BALF and serum (p<0.05). Furthermore, the expressions of Notch 1, 2, 3, and DLL4 in lung tissue were inhibited by emodin treatment. CONCLUSIONS The results demonstrated that emodin alleviated inflammation in CVA mice, which might be associated with suppression of the Notch pathway. Emodin might be a promising therapeutic agent for allergic asthma. FAU - Hua, Shu AU - Hua S AD - Department of Pediatrics, Yantai Hospital of Traditional of Chinese Medicine, Yantai, Shandong, China (mainland). FAU - Liu, Fengai AU - Liu F AD - Department of Pediatrics, Haiyang People's Hospital, Haiyang, Shandong, China (mainland). FAU - Wang, Manman AU - Wang M AD - Department of Pediatrics, Zhejiang Xiaoshan Hospital, Hangzhou, Zhejiang, China (mainland). LA - eng PT - Journal Article DEP - 20190729 PL - United States TA - Med Sci Monit JT - Medical science monitor : international medical journal of experimental and clinical research JID - 9609063 RN - 0 (Cytokines) RN - 0 (Immunoglobulin G) RN - 0 (Receptors, Notch) RN - 37341-29-0 (Immunoglobulin E) RN - 9006-59-1 (Ovalbumin) RN - KA46RNI6HN (Emodin) SB - IM MH - Animals MH - Asthma/*drug therapy/metabolism/pathology MH - Bronchoalveolar Lavage Fluid MH - Cough/drug therapy/pathology MH - Cytokines/metabolism MH - Disease Models, Animal MH - Emodin/*pharmacology MH - Eosinophils/metabolism MH - Immunoglobulin E/blood MH - Immunoglobulin G/blood MH - Inflammation/metabolism MH - Lung/metabolism MH - Male MH - Mice MH - Mice, Inbred BALB C MH - Ovalbumin/pharmacology MH - Receptors, Notch/*metabolism PMC - PMC6685324 COIS- Conflict of interests None. EDAT- 2019/07/30 06:00 MHDA- 2020/02/15 06:00 PMCR- 2019/07/29 CRDT- 2019/07/30 06:00 PHST- 2019/07/30 06:00 [entrez] PHST- 2019/07/30 06:00 [pubmed] PHST- 2020/02/15 06:00 [medline] PHST- 2019/07/29 00:00 [pmc-release] AID - 915080 [pii] AID - 10.12659/MSM.915080 [doi] PST - epublish SO - Med Sci Monit. 2019 Jul 29;25:5621-5629. doi: 10.12659/MSM.915080.