Administration of poly(ADP-ribose) polymerase inhibitor into bronchial artery attenuates pulmonary pathophysiology after smoke inhalation and burn in an ovine model

Atsumori Hamahata, Perenlei Enkhbaatar, Matthias Lange, Takashi Yamaki, Hiroyuki Sakurai, Katsumi Shimoda, Hiroaki Nakazawa, Lillian D. Traber, Daniel L. Traber

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Poly(ADP-ribose) polymerase (PARP) is well known to be an enzyme that repairs damaged DNA and also induces cell death when overactivated. It has been reported that PARP plays a significant role in burn and smoke inhalation injury, and the pathophysiology is thought to be localized in the airway during early stages of activation. Therefore, we hypothesized that local inhibition of PARP in the airway by direct delivery of low dose PJ-34 [poly(ADP-ribose) polymerase inhibitor] into the bronchial artery would attenuate burn and smoke-induced acute lung injury. The bronchial artery in sheep was cannulated in preparation for surgery. After a 5-7 day recovery period, sheep were administered a burn and inhalation injury. Adult female sheep (n = 19) were divided into four groups following the injury: (1) PJ-34 group A: 1 h post-injury, PJ-34 (0.003 mg/kg/h, 2 mL/h) was continuously injected into the bronchial artery, n = 5; (2) PJ-34 group B: 1 h post-injury, PJ-34 (0.03 mg/kg/h, 2 mL/h) was continuously injected into bronchial artery, n = 4; (3) Control group: 1 h post-injury, an equivalent amount of saline was injected into the bronchial artery, n = 5; (4) Sham group: no injury, no treatment, same operation and anesthesia, n = 5. After injury, all animals were placed on a ventilator and fluid resuscitated equally. Pulmonary function as evaluated by measurement of blood gas analysis, pulmonary mechanics, and pulmonary transvascular fluid flux was severely deteriorated in the control group. However, the above changes were markedly attenuated by PJ-34 infusion into the bronchial artery (P/F ratio at 24 h: PJ-34 group A 398 ± 40*, PJ-34 group B 438 ± 41*†‡, Control 365 ± 58*, Sham 547 ± 47;* vs. sham [p < 0.05], † vs. control [p < 0.05], ‡ vs. PJ-34 group A [p < 0.05]). Our data strongly suggest that local airway production of poly(ADP-ribose) polymerase contributes to pulmonary dysfunction following smoke inhalation and burn.

Original languageEnglish (US)
Pages (from-to)1210-1215
Number of pages6
JournalBurns
Volume38
Issue number8
DOIs
StatePublished - Dec 2012

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Inhalation Burns
Bronchial Arteries
Smoke
Sheep
Lung
Poly(ADP-ribose) Polymerases
Wounds and Injuries
Smoke Inhalation Injury
DNA Repair Enzymes
Poly(ADP-ribose) Polymerase Inhibitors
N-(oxo-5,6-dihydrophenanthridin-2-yl)-N,N-dimethylacetamide hydrochloride
Control Groups
Blood Gas Analysis
Acute Lung Injury
Mechanical Ventilators
Mechanics
Cell Death
Anesthesia

Keywords

  • ARDS
  • Bronchial artery
  • Burn
  • PJ-34
  • Poly(ADP-ribose) polymerase inhibitor
  • Smoke inhalation

ASJC Scopus subject areas

  • Emergency Medicine
  • Critical Care and Intensive Care Medicine
  • Surgery

Cite this

Administration of poly(ADP-ribose) polymerase inhibitor into bronchial artery attenuates pulmonary pathophysiology after smoke inhalation and burn in an ovine model. / Hamahata, Atsumori; Enkhbaatar, Perenlei; Lange, Matthias; Yamaki, Takashi; Sakurai, Hiroyuki; Shimoda, Katsumi; Nakazawa, Hiroaki; Traber, Lillian D.; Traber, Daniel L.

In: Burns, Vol. 38, No. 8, 12.2012, p. 1210-1215.

Research output: Contribution to journalArticle

Hamahata, Atsumori ; Enkhbaatar, Perenlei ; Lange, Matthias ; Yamaki, Takashi ; Sakurai, Hiroyuki ; Shimoda, Katsumi ; Nakazawa, Hiroaki ; Traber, Lillian D. ; Traber, Daniel L. / Administration of poly(ADP-ribose) polymerase inhibitor into bronchial artery attenuates pulmonary pathophysiology after smoke inhalation and burn in an ovine model. In: Burns. 2012 ; Vol. 38, No. 8. pp. 1210-1215.
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AU - Yamaki, Takashi

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N2 - Poly(ADP-ribose) polymerase (PARP) is well known to be an enzyme that repairs damaged DNA and also induces cell death when overactivated. It has been reported that PARP plays a significant role in burn and smoke inhalation injury, and the pathophysiology is thought to be localized in the airway during early stages of activation. Therefore, we hypothesized that local inhibition of PARP in the airway by direct delivery of low dose PJ-34 [poly(ADP-ribose) polymerase inhibitor] into the bronchial artery would attenuate burn and smoke-induced acute lung injury. The bronchial artery in sheep was cannulated in preparation for surgery. After a 5-7 day recovery period, sheep were administered a burn and inhalation injury. Adult female sheep (n = 19) were divided into four groups following the injury: (1) PJ-34 group A: 1 h post-injury, PJ-34 (0.003 mg/kg/h, 2 mL/h) was continuously injected into the bronchial artery, n = 5; (2) PJ-34 group B: 1 h post-injury, PJ-34 (0.03 mg/kg/h, 2 mL/h) was continuously injected into bronchial artery, n = 4; (3) Control group: 1 h post-injury, an equivalent amount of saline was injected into the bronchial artery, n = 5; (4) Sham group: no injury, no treatment, same operation and anesthesia, n = 5. After injury, all animals were placed on a ventilator and fluid resuscitated equally. Pulmonary function as evaluated by measurement of blood gas analysis, pulmonary mechanics, and pulmonary transvascular fluid flux was severely deteriorated in the control group. However, the above changes were markedly attenuated by PJ-34 infusion into the bronchial artery (P/F ratio at 24 h: PJ-34 group A 398 ± 40*, PJ-34 group B 438 ± 41*†‡, Control 365 ± 58*, Sham 547 ± 47;* vs. sham [p < 0.05], † vs. control [p < 0.05], ‡ vs. PJ-34 group A [p < 0.05]). Our data strongly suggest that local airway production of poly(ADP-ribose) polymerase contributes to pulmonary dysfunction following smoke inhalation and burn.

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