Page 122 - 南京医科大学学报自然科学版
P. 122
第43卷第7期
·1008 · 南 京 医 科 大 学 学 报 2023年7月
作用,Dumas等 总结了肠道菌群在肠⁃肺轴中可能 tein adducts and benzo[a]pyrene diol epoxide I⁃triglycer⁃
[52]
通过其衍生的代谢产物[如短链脂肪酸(short⁃chain ide adduct detected in vitro and in vivo[J]. Carcinogene⁃
fatty acid,SCFA)],或者通过暴露其结构配体(如脂 sis,2000,21(4):629-632
多糖或肽聚糖)来改变宿主肺、肠端炎症因子或趋 [5] 朱宇琪,吴 昊,热那古力·吾斯曼江,等. 南京市某地
区大气多环芳烃污染及空气微生物多样性相关分析
化因子的表达。PAH 暴露小鼠粪便中丁酸含量显
[J]. 南京医科大学学报(自然科学版),2022,42(3):
著降低 [21] 。丁酸盐是结肠上皮细胞的主要能量来
415-420
源,有助于维持上皮肠道屏障并具有免疫调节和抗
[6] MILLER R L,GARFINKEL R,HORTON M,et al. Poly⁃
炎特性 [53] 。有研究发现肠道菌群中拟杆菌属与丁
cyclic aromatic hydrocarbons,environmental tobacco
酸盐及丁酸盐代谢相关,该功能可能与儿童哮喘保
smoke,and respiratory symptoms in an inner⁃city birth co⁃
护作用相关 [54] 。总的来说,肠道菌群能通过代谢产 hort[J]. Chest,2004,126(4):1071-1078
生SCFA改变宿主炎症状态,即较高的SCFA水平可 [7] GILMOUR M I,JAAKKOLA M S,LONDON S J,et al.
以减少身体各个部位的炎症,包括气道黏膜。同 How exposure to environmental tobacco smoke,outdoor
时,PAH 诱发肠道菌群的改变,并进一步改变了宿 air pollutants,and increased pollen burdens influences
主的色氨酸代谢,激活 AHR,刺激回结肠分泌炎症 the incidence of asthma[J]. Environ Health Perspect,
因子 IL⁃17A,并借助肠⁃肺轴通过血液到达其他器 2006,114(4):627-633
官,在肺等器官中发挥促炎功能 [55] 。基于上述研 [8] WANG E Y,LIU X Y,TU W,et al. Benzo(a)pyrene facil⁃
itates dermatophagoides group 1(Der f 1)⁃induced epithe⁃
究,本文推测PAH可能通过肠⁃肺轴加重肺部炎症,
lial cytokine release through aryl hydrocarbon receptor in
并诱发哮喘。
asthma[J]. Allergy,2019,74(9):1675-1690
4 问题与展望 [9] WALKER D I,PENNELL K D,UPPAL K,et al. Pilot me⁃
tabolome⁃wide association study of benzo(a)pyrene in se⁃
本文分别综述了 PAH 通过一碳代谢和色氨酸 rum from military personnel[J]. J Occup Environ Med,
代谢两条代谢途径诱发肺部炎症的机制,即一碳代 2016,58(8 Suppl 1):S44-S52
谢—表观遗传—IL⁃17A 轴和色氨酸代谢—AHR— [10] ZHANG S Y,SHAO D,LIU H,et al. Metabolomics anal⁃
IL⁃17A 轴,为解析 PAH 暴露对儿童哮喘的影响,探 ysis reveals that benzo[a]pyrene,a component of PM
究儿童哮喘发生发展的机制,制定PAH暴露对儿童 (2.5),promotes pulmonary injury by modifying lipid me⁃
哮喘影响的预防政策提供依据。另外,已知肠道 tabolism in a phospholipase A2⁃dependent manner in vivo
菌群参与宿主代谢,如色氨酸代谢和短链脂肪酸 and in vitro[J]. Redox Biol,2017,13:459-469
[11] ZHOU C,MA X,CHEN J,et al. Untargeted metabolomics
代谢,并可通过肠⁃肺轴影响肺部健康。但本文未
and lipidomics analysis identified the role of FOXA1 in
综述 PAH 对肠道菌群的影响,以及改变宿主/菌群
remodeling the metabolic pattern of BaP ⁃ transformed
代谢后通过肠⁃肺轴干扰宿主免疫状态的机制。未 16HBE cells[J]. Toxicol Appl Pharmacol,2021,426:
来我们也将深入研究总结乳杆菌等益生菌对宿主
115640
代谢途径的影响及其诱发呼吸道炎症的具体机制。 [12] JIANG G T,KANG H Y,YU Y Q. Cross⁃platform metabo⁃
[参考文献] lomics investigating the intracellular metabolic altera⁃
tions of HaCaT cells exposed to phenanthrene[J]. J Chro⁃
[1] VICHI S,PIZZALE L,CONTE L S,et al. Simultaneous
matogr B Anal Technol Biomed Life Sci,2017,1060:15-
determination of volatile and semi ⁃ volatile aromatic hy⁃
21
drocarbons in virgin olive oil by headspace solid ⁃ phase
[13] JOHNSON C H,IVANISEVIC J,SIUZDAK G. Metabolo⁃
microextraction coupled to gas chromatography/mass
mics:beyond biomarkers and towards mechanisms[J].
spectrometry[J]. J Chromatogr A,2005,1090(1/2):146-
Nat Rev Mol Cell Biol,2016,17(7):451-459
154 [14] 龚俊杰,刘秀秀,王 平,等. 代谢组学在胶质母细胞瘤
[2] ALI N,ISMAIL I M I,KHODER M,et al. Polycyclic aro⁃ 相关研究中的应用[J]. 南京医科大学学报(自然科学
matic hydrocarbons(PAH)in the settled dust of automo⁃ 版),2021,41(2):296-305
bile workshops,health and carcinogenic risk evaluation [15] GAO P,DA SILVA E,HOU L,et al. Human exposure to
[J]. Sci Total Environ,2017,601/602:478-484 polycyclic aromatic hydrocarbons:metabolomics perspec⁃
[3] KWACK S J,LEE B M. Correlation between DNA or pro⁃ tive[J]. Environ Int,2018,119:466-477