PMID- 22298527 OWN - NLM STAT- MEDLINE DCOM- 20120325 LR - 20211021 IS - 1535-4989 (Electronic) IS - 1044-1549 (Print) IS - 1044-1549 (Linking) VI - 46 IP - 2 DP - 2012 Feb TI - Trichostatin A abrogates airway constriction, but not inflammation, in murine and human asthma models. PG - 132-8 LID - 10.1165/rcmb.2010-0276OC [doi] AB - Histone deacetylase (HDAC) inhibitors may offer novel approaches in the treatment of asthma. We postulate that trichostatin A (TSA), a Class 1 and 2 inhibitor of HDAC, inhibits airway hyperresponsiveness in antigen-challenged mice. Mice were sensitized and challenged with Aspergillus fumigatus antigen (AF) and treated with TSA, dexamethasone, or vehicle. Lung resistance (R(L)) and dynamic compliance were measured, and bronchial alveolar lavage fluid (BALF) was analyzed for numbers of leukocytes and concentrations of cytokines. Human precision-cut lung slices (PCLS) were treated with TSA and their agonist-induced bronchoconstriction was measured, and TSA-treated human airway smooth muscle (ASM) cells were evaluated for the agonist-induced activation of Rho and intracellular release of Ca(2+). The activity of HDAC in murine lungs was enhanced by antigen and abrogated by TSA. TSA also inhibited methacholine (Mch)-induced increases in R(L) and decreases in dynamic compliance in naive control mice and in AF-sensitized and -challenged mice. Total cell counts, concentrations of IL-4, and numbers of eosinophils in BALF were unchanged in mice treated with TSA or vehicle, whereas dexamethasone inhibited the numbers of eosinophils in BALF and concentrations of IL-4. TSA inhibited the carbachol-induced contraction of PCLS. Treatment with TSA inhibited the intracellular release of Ca(2+) in ASM cells in response to histamine, without affecting the activation of Rho. The inhibition of HDAC abrogates airway hyperresponsiveness to Mch in both naive and antigen-challenged mice. TSA inhibits the agonist-induced contraction of PCLS and mobilization of Ca(2+) in ASM cells. Thus, HDAC inhibitors demonstrate a mechanism of action distinct from that of anti-inflammatory agents such as steroids, and represent a promising therapeutic agent for airway disease. FAU - Banerjee, Audreesh AU - Banerjee A AD - Translational Research Laboratories, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pennsylvania Medical Center, 125 South 31st St., Translational Research Laboratories, Philadelphia, PA 19104-3403, USA. audreesh.banerjee@uphs.upenn.edu FAU - Trivedi, Chinmay M AU - Trivedi CM FAU - Damera, Gautam AU - Damera G FAU - Jiang, Meiqi AU - Jiang M FAU - Jester, William AU - Jester W FAU - Hoshi, Toshinori AU - Hoshi T FAU - Epstein, Jonathan A AU - Epstein JA FAU - Panettieri, Reynold A Jr AU - Panettieri RA Jr LA - eng GR - K08 HL097032/HL/NHLBI NIH HHS/United States GR - K99 HL098366/HL/NHLBI NIH HHS/United States GR - R01GM057654/GM/NIGMS NIH HHS/United States GR - P30 ES013508/ES/NIEHS NIH HHS/United States GR - F32 HL096286/HL/NHLBI NIH HHS/United States GR - R01HL071546/HL/NHLBI NIH HHS/United States GR - R01 HL071546/HL/NHLBI NIH HHS/United States GR - K08HL097032/HL/NHLBI NIH HHS/United States GR - R01 HL097796/HL/NHLBI NIH HHS/United States GR - R01 GM078579/GM/NIGMS NIH HHS/United States GR - F32HL096286/HL/NHLBI NIH HHS/United States GR - K99-R00 HL098366/HL/NHLBI NIH HHS/United States GR - R01 GM057654/GM/NIGMS NIH HHS/United States GR - K99 HL098366-01/HL/NHLBI NIH HHS/United States GR - R01 HL081824/HL/NHLBI NIH HHS/United States GR - 5P30ES013-508-04/ES/NIEHS NIH HHS/United States GR - R00 HL098366/HL/NHLBI NIH HHS/United States GR - K99 HL098366-02/HL/NHLBI NIH HHS/United States GR - R00 HL098366-03/HL/NHLBI NIH HHS/United States GR - R01HL097796/HL/NHLBI NIH HHS/United States GR - R01GM078579/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PL - United States TA - Am J Respir Cell Mol Biol JT - American journal of respiratory cell and molecular biology JID - 8917225 RN - 0 (Histone Deacetylase Inhibitors) RN - 0 (Hydroxamic Acids) RN - 0 (Interleukin-6) RN - 207137-56-2 (Interleukin-4) RN - 3X2S926L3Z (trichostatin A) RN - 7S5I7G3JQL (Dexamethasone) RN - 8Y164V895Y (Carbachol) RN - SY7Q814VUP (Calcium) SB - IM MH - Animals MH - Asthma/*physiopathology MH - Blotting, Western MH - Bronchoalveolar Lavage Fluid MH - Bronchoconstriction/*drug effects MH - Calcium/metabolism MH - Carbachol/pharmacology MH - Dexamethasone/pharmacology MH - Electrophoresis, Polyacrylamide Gel MH - Female MH - Histone Deacetylase Inhibitors/*pharmacology MH - Humans MH - Hydroxamic Acids/*pharmacology MH - Inflammation/*prevention & control MH - Interleukin-4/metabolism MH - Interleukin-6/metabolism MH - Mice MH - Mice, Inbred C57BL MH - *Models, Biological PMC - PMC3297166 EDAT- 2012/02/03 06:00 MHDA- 2012/03/27 06:00 PMCR- 2013/02/01 CRDT- 2012/02/03 06:00 PHST- 2012/02/03 06:00 [entrez] PHST- 2012/02/03 06:00 [pubmed] PHST- 2012/03/27 06:00 [medline] PHST- 2013/02/01 00:00 [pmc-release] AID - 46/2/132 [pii] AID - 2010-0276OC [pii] AID - 10.1165/rcmb.2010-0276OC [doi] PST - ppublish SO - Am J Respir Cell Mol Biol. 2012 Feb;46(2):132-8. doi: 10.1165/rcmb.2010-0276OC.