Resolving the Contradictory Functions of Lysine Decarboxylase and Butyrate in Periodontal and Intestinal Diseases.

Resolving the Contradictory Functions of Lysine Decarboxylase and Butyrate in Periodontal and Intestinal Diseases.
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解决溶质脱羧酶和丁酸酯在牙周和肠道疾病中的矛盾功能。

DOI:
10.3390/jcm10112360
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发表时间:
2021-05-27
影响因子:
3.9
通讯作者:
Lohinai ZM
Lohinai ZM
中科院分区:
医学2区
文献类型:
--
作者:
Levine M;Lohinai ZM

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牙周病是一种常见的,细菌介导的世界范围内的健康问题。咀嚼(咀嚼)反复创伤牙龈和牙周组织,导致微量的炎性渗出物,龈沟液(GCF),出现在牙齿和牙龈之间的缝隙。不充分的牙齿清洁会导致牙齿附着的微生物生物膜,由口腔唾液细菌组成,出现在这些缝隙周围,许多细菌在GCF上比在唾液中生长得更好。我们报道了来自Eikenella corrodens的赖氨酸脱羧酶(Ldc)通过将其转化为尸胺和二氧化碳来消耗赖氨酸的GCF。赖氨酸是一种氨基酸,对牙齿附着上皮的完整性和持续更新至关重要,作为微生物产物的屏障。除非通过口腔卫生定期清除,否则细菌产物会侵入赖氨酸缺乏的牙齿附着体,在那里它们刺激炎症,从而增强GCF渗出。尸胺增加并支持产生丁酸盐的微生物组的发展,该微生物组利用增加的GCF底物来缓慢破坏牙周组织(生态失调)。一个长期存在的悖论是酸诱导的Ldc和丁酸盐产生支持肠道中的益生菌(益生菌)微生物组。在这里,我们描述了各自组织的不同生理学如何解释不同的Ldc和丁酸功能如何影响这两种慢性疾病的进展和控制。
Periodontal disease is a common, bacterially mediated health problem worldwide. Mastication (chewing) repeatedly traumatizes the gingiva and periodontium, causing traces of inflammatory exudate, gingival crevicular fluid (GCF), to appear in crevices between the teeth and gingiva. Inadequate tooth cleaning causes a dentally adherent microbial biofilm composed of commensal salivary bacteria to appear around these crevices where many bacteria grow better on GCF than in saliva. We reported that lysine decarboxylase (Ldc) from Eikenella corrodens depletes the GCF of lysine by converting it to cadaverine and carbon dioxide. Lysine is an amino acid essential for the integrity and continuous renewal of dentally attached epithelium acting as a barrier to microbial products. Unless removed regularly by oral hygiene, bacterial products invade the lysine-deprived dental attachment where they stimulate inflammation that enhances GCF exudation. Cadaverine increases and supports the development of a butyrate-producing microbiome that utilizes the increased GCF substrates to slowly destroy the periodontium (dysbiosis). A long-standing paradox is that acid-induced Ldc and butyrate production support a commensal (probiotic) microbiome in the intestine. Here, we describe how the different physiologies of the respective tissues explain how the different Ldc and butyrate functions impact the progression and control of these two chronic diseases.
与牙周炎和吸烟的影响相比,健康中的微生物群。
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