Fusobacterium nucleatum exacerbates chronic obstructive pulmonary disease in elastase-induced emphysematous mice.

Fusobacterium nucleatum exacerbates chronic obstructive pulmonary disease in elastase-induced emphysematous mice.
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DOI:
10.1002/2211-5463.13369
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发表时间:
2022-03
期刊:
影响因子:
2.6
通讯作者:
Imai K
Imai K
中科院分区:
生物学4区
文献类型:
--
作者:
Suzuki R;Kamio N;Kaneko T;Yonehara Y;Imai K

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慢性阻塞性肺疾病(COPD)加重与疾病进展和死亡率增加相关。牙周病是COPD加重的危险因素,但牙周致病菌在此过程中的作用知之甚少。在这里,我们研究了弹性蛋白酶诱导的肺气肿小鼠中,牙周病细菌种属具核梭杆菌(Fusobacterium nucleatum)的气管内给药对COPD恶化的影响。给予弹性蛋白酶处理的小鼠具核梭菌增强了炎症反应、肺泡壁破坏因子的产生、肺气肿的进展和粘蛋白的募集,所有这些都是在COPD急性加重患者中观察到的症状。因此,我们认为具核梭菌可能在COPD加重中起作用。牙周病是慢性阻塞性肺疾病(COPD)加重的危险因素。我们发现,向弹性蛋白酶诱导的肺气肿小鼠体内施用具核梭杆菌(一种牙周病细菌,当牙周病进展时在唾液中增加)可增强(i)炎症反应,(ii)肺泡壁破坏因子的产生,(iii)肺气肿进展,和(iv)粘蛋白分泌过多。这些是在COPD急性加重患者中观察到的已知症状。
Exacerbation of chronic obstructive pulmonary disease (COPD) is associated with disease progression and increased mortality. Periodontal disease is a risk factor for exacerbation of COPD, but little is known about the role of periodontopathic bacteria in this process. Here, we investigated the effects of intratracheal administration of Fusobacterium nucleatum, a periodontopathic bacteria species, on COPD exacerbation in elastase‐induced emphysematous mice. The administration of F. nucleatum to elastase‐treated mice enhanced inflammatory responses, production of alveolar wall destruction factors, progression of emphysema, and recruitment of mucin, all of which are symptoms observed in patients with COPD exacerbation. Hence, we propose that F. nucleatum may play a role in exacerbation of COPD. Periodontal disease is a risk factor for chronic obstructive pulmonary disease (COPD) exacerbations. We found that intratracheally administered Fusobacterium nucleatum, a periodontopathic bacterium that increases in saliva when periodontal disease advances, to elastase‐induced emphysematous mice enhances (i) inflammatory responses, (ii) alveolar wall destruction factor production, (iii) emphysema progression, and (iv) mucin hypersecretion. These are known symptoms observed in patients with COPD exacerbations.
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