Mesenchymal stem cells from human umbilical cord decrease inflammation and increase vascularization of induced apical...

Area of Science:

• Endocrinology
• Immunology
• Regenerative Medicine

Background:

• Diabetes mellitus can exacerbate inflammatory conditions like apical periodontitis.
• Assessing the impact of diabetes on apical periodontitis is crucial for understanding disease progression and treatment efficacy.

Purpose of the Study:

• To investigate the effects of mesenchymal stem cells (MSCs) on inflammation and vascularization in a rat model of apical periodontitis complicated by diabetes.
• To evaluate the expression of key inflammatory markers, interleukin-1 beta (IL-1β) and tumor necrosis factor-alpha (TNF-α), and blood vessel density.

Main Methods:

• Diabetes was induced in Wistar rats using streptozotocin (STZ).
• Apical periodontitis was surgically induced in the mandibular first molars.
• Rats were divided into control and MSC treatment groups (from human umbilical cords), with samples collected at 14 and 28 days post-induction.
• Histopathological and immunohistochemical analyses were performed to quantify vascularization and inflammatory markers (IL-1β, TNF-α).

Main Results:

• Both control and MSC-treated groups exhibited increased vascularization in the apical periodontitis area at 14 and 28 days.
• MSC treatment significantly reduced the levels of IL-1β and TNF-α compared to control groups.
• These findings indicate a potent anti-inflammatory effect of MSCs.

Conclusions:

• Mesenchymal stem cells derived from human umbilical cords demonstrate efficacy in mitigating inflammation.
• MSCs promote vascularization in the context of induced apical periodontitis in diabetic rats.
• The results suggest MSCs as a promising therapeutic strategy for managing apical periodontitis in diabetic patients.