PMID- 35722408 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220716 IS - 2305-5839 (Print) IS - 2305-5847 (Electronic) IS - 2305-5839 (Linking) VI - 10 IP - 10 DP - 2022 May TI - Study on the intervention effect and mechanism of bacillus Calmette-Guerin polysaccharide and nucleic acid injection on atopic dermatitis by targeting the transient receptor potential vanilloid subtype 1 pathway. PG - 608 LID - 10.21037/atm-22-2101 [doi] LID - 608 AB - BACKGROUND: This study aimed to explore the mechanism of Bacillus Calmette-Guerin polysaccharide and nucleic acid injection (BCG-PSN) targeting the transient receptor potential vanilloid subtype 1 (TRPV1) pathway for atopic dermatitis (AD) in mice. METHODS: Experiment 1: a total of 30 Kunming (KM) mice were randomized into blank control, model, BCG-PSN low-dose (25 g/kg), BCG-PSN medium-dose (75 g/kg), BCG-PSN high-dose (225 g/kg), and positive drug (hydrocortisone 25 mg/kg) control groups. The AD model mice were established by induction with 2,4-Dinitrochlorobenzene (DNCB). After treatment in groups, the symptom score and scratching frequency in skin lesions were observed. The levels of immunoglobulin E (IgE), interleukin (IL)-4, IL-31, and IL-13 in serum were detected, as well as the levels of tumor necrosis factor-alpha (TNF-alpha), TRPV1, and nuclear factor (NF)-kappaB p65 in skin lesions in each group. Experiment 2: the optimal dose of BCG-PSN in Experiment 1 was adopted. A total of 20 KM mice were randomized into blank control, model, BCG-PSN, and BCG-PSN + PAC (PAC-14028) groups. The symptom score and scratching frequency in skin lesions were observed. The levels of IgE, IL-4, IL-31, and IL-13 in serum were detected, as well as the levels of TNF-alpha and TRPV1 in skin lesions in each group. RESULTS: In Experiment 1, compared with the blank control group, the ear tissues of mice in model groups developed AD, with increased symptom score, scratching frequency, levels of IgE, IL-4, IL-31, and IL-13 in serum and levels of TNF-alpha, TRPV1, and NF-kappaB p65 in skin lesions. Compared with the model group, BCG-PSN low-dose, BCG-PSN medium-dose, BCG-PSN high-dose, and positive drug control groups had reduced AD symptoms, decreased symptom score, and decreased scratching frequency, with declined expression of each inflammatory substance, including the greatest decrease in the medium-dose group. In Experiment 2, after BCG-PSN was combined with PAC, the inflammation indexes decreased compared with those in the model group, and increased compared with those in the BCG-PSN group. CONCLUSIONS: Intramuscular BCG-PSN can target the TRPV1 pathway, inhibit inflammation, and improve the symptoms of AD mice. CI - 2022 Annals of Translational Medicine. All rights reserved. FAU - Wang, Xiufen AU - Wang X AD - Department of Traditional Chinese Medicine, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, China. FAU - Wu, Di AU - Wu D AD - Scientific Research Section, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, China. FAU - Duan, Tingting AU - Duan T AD - Department of Dermatology, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, China. FAU - Liu, Ying AU - Liu Y AD - Department of Dermatology, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, China. FAU - Lv, Shukun AU - Lv S AD - Department of Dermatology, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, China. FAU - Cui, Liran AU - Cui L AD - Scientific Research Section, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, China. FAU - Ding, Changrui AU - Ding C AD - Department of Dermatology, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, China. FAU - Xu, Yulong AU - Xu Y AD - Department of Dermatology, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, China. LA - eng PT - Journal Article PL - China TA - Ann Transl Med JT - Annals of translational medicine JID - 101617978 PMC - PMC9201144 OTO - NOTNLM OT - Bacillus Calmette-Guerin polysaccharide and nucleic acid injection (BCG-PSN) OT - Transient receptor potential vanilloid subtype 1 (TRPV1) OT - atopic dermatitis (AD) OT - inflammation COIS- Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://atm.amegroups.com/article/view/10.21037/atm-22-2101/coif). All authors report that this study was funded by Basic Scientific Research Business Expenses, Research Project of Heilongjiang Provincial Undergraduate College, 2019 (No. 2019-KYYWF-1248). The authors have no other conflicts of interest to declare. EDAT- 2022/06/21 06:00 MHDA- 2022/06/21 06:01 PMCR- 2022/05/01 CRDT- 2022/06/20 04:07 PHST- 2022/03/29 00:00 [received] PHST- 2022/05/20 00:00 [accepted] PHST- 2022/06/20 04:07 [entrez] PHST- 2022/06/21 06:00 [pubmed] PHST- 2022/06/21 06:01 [medline] PHST- 2022/05/01 00:00 [pmc-release] AID - atm-10-10-608 [pii] AID - 10.21037/atm-22-2101 [doi] PST - ppublish SO - Ann Transl Med. 2022 May;10(10):608. doi: 10.21037/atm-22-2101.