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Yimam M, Horm T, O’Neal A, Jiao P, Hong M, Brownell L, Jia Q, Lin M, Gauthier A, Wu J, Venkat Mateti K, Yang X, Dial K, Zefi S, Mantell LL. A Standardized Botanical Composition Mitigated Acute Inflammatory Lung Injury and Reduced Mortality through Extracellular HMGB1 Reduction. Molecules 2023; 28:6560. [PMID: 37764336 PMCID: PMC10538186 DOI: 10.3390/molecules28186560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/04/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
HMGB1 is a key late inflammatory mediator upregulated during air-pollution-induced oxidative stress. Extracellular HMGB1 accumulation in the airways and lungs plays a significant role in the pathogenesis of inflammatory lung injury. Decreasing extracellular HMBG1 levels may restore innate immune cell functions to protect the lungs from harmful injuries. Current therapies for air-pollution-induced respiratory problems are inadequate. Dietary antioxidants from natural sources could serve as a frontline defense against air-pollution-induced oxidative stress and lung damage. Here, a standardized botanical antioxidant composition from Scutellaria baicalensis and Acacia catechu was evaluated for its efficacy in attenuating acute inflammatory lung injury and sepsis. Murine models of disorders, including hyperoxia-exposed, bacterial-challenged acute lung injury, LPS-induced sepsis, and LPS-induced acute inflammatory lung injury models were utilized. The effect of the botanical composition on phagocytic activity and HMGB1 release was assessed using hyperoxia-stressed cultured macrophages. Analyses, such as hematoxylin-eosin (HE) staining for lung tissue damage evaluation, ELISA for inflammatory cytokines and chemokines, Western blot analysis for proteins, including extracellular HMGB1, and bacterial counts in the lungs and airways, were performed. Statistically significant decreases in mortality (50%), proinflammatory cytokines (TNF-α, IL-1β, IL-6) and chemokines (CINC-3) in serum and bronchoalveolar lavage fluid (BALF), and increased bacterial clearance from airways and lungs; reduced airway total protein, and decreased extracellular HMGB1 were observed in in vivo studies. A statistically significant 75.9% reduction in the level of extracellular HMGB1 and an increase in phagocytosis were observed in cultured macrophages. The compilations of data in this report strongly suggest that the botanical composition could be indicated for oxidative-stress-induced lung damage protection, possibly through attenuation of increased extracellular HMGB1 accumulation.
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Affiliation(s)
- Mesfin Yimam
- Unigen Inc., 2121 South State Street, Suite #400, Tacoma, WA 98405, USA; (T.H.); (A.O.); (P.J.); (M.H.); (L.B.); (Q.J.)
| | - Teresa Horm
- Unigen Inc., 2121 South State Street, Suite #400, Tacoma, WA 98405, USA; (T.H.); (A.O.); (P.J.); (M.H.); (L.B.); (Q.J.)
| | - Alexandria O’Neal
- Unigen Inc., 2121 South State Street, Suite #400, Tacoma, WA 98405, USA; (T.H.); (A.O.); (P.J.); (M.H.); (L.B.); (Q.J.)
| | - Ping Jiao
- Unigen Inc., 2121 South State Street, Suite #400, Tacoma, WA 98405, USA; (T.H.); (A.O.); (P.J.); (M.H.); (L.B.); (Q.J.)
| | - Mei Hong
- Unigen Inc., 2121 South State Street, Suite #400, Tacoma, WA 98405, USA; (T.H.); (A.O.); (P.J.); (M.H.); (L.B.); (Q.J.)
| | - Lidia Brownell
- Unigen Inc., 2121 South State Street, Suite #400, Tacoma, WA 98405, USA; (T.H.); (A.O.); (P.J.); (M.H.); (L.B.); (Q.J.)
| | - Qi Jia
- Unigen Inc., 2121 South State Street, Suite #400, Tacoma, WA 98405, USA; (T.H.); (A.O.); (P.J.); (M.H.); (L.B.); (Q.J.)
| | - Mosi Lin
- College of Pharmacy and Health Sciences, St John’s University, Queens, NY 11439, USA; (M.L.); (A.G.); (J.W.); (K.V.M.); (X.Y.); (K.D.); (S.Z.); (L.L.M.)
| | - Alex Gauthier
- College of Pharmacy and Health Sciences, St John’s University, Queens, NY 11439, USA; (M.L.); (A.G.); (J.W.); (K.V.M.); (X.Y.); (K.D.); (S.Z.); (L.L.M.)
| | - Jiaqi Wu
- College of Pharmacy and Health Sciences, St John’s University, Queens, NY 11439, USA; (M.L.); (A.G.); (J.W.); (K.V.M.); (X.Y.); (K.D.); (S.Z.); (L.L.M.)
| | - Kranti Venkat Mateti
- College of Pharmacy and Health Sciences, St John’s University, Queens, NY 11439, USA; (M.L.); (A.G.); (J.W.); (K.V.M.); (X.Y.); (K.D.); (S.Z.); (L.L.M.)
| | - Xiaojian Yang
- College of Pharmacy and Health Sciences, St John’s University, Queens, NY 11439, USA; (M.L.); (A.G.); (J.W.); (K.V.M.); (X.Y.); (K.D.); (S.Z.); (L.L.M.)
| | - Katelyn Dial
- College of Pharmacy and Health Sciences, St John’s University, Queens, NY 11439, USA; (M.L.); (A.G.); (J.W.); (K.V.M.); (X.Y.); (K.D.); (S.Z.); (L.L.M.)
| | - Sidorela Zefi
- College of Pharmacy and Health Sciences, St John’s University, Queens, NY 11439, USA; (M.L.); (A.G.); (J.W.); (K.V.M.); (X.Y.); (K.D.); (S.Z.); (L.L.M.)
| | - Lin L. Mantell
- College of Pharmacy and Health Sciences, St John’s University, Queens, NY 11439, USA; (M.L.); (A.G.); (J.W.); (K.V.M.); (X.Y.); (K.D.); (S.Z.); (L.L.M.)
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