Expression of microtubule destabilizer-oncoprotein18/stathmin gene in the hypertrophic scar before and after the healing of the deep partial thickness burn wounds
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摘要: 目的 观察深Ⅱ度烧伤创面愈合前及愈合后增生性瘢痕组织中微管失稳剂oncoprotein18/stathmin(Opl8)基因的表达。 方法 提取临床深Ⅱ度烧伤愈合前与愈合后不同时期增生性瘢痕中的总RNA,以GADPH基因表达为内参照,采用逆转录酶-多聚酶链式反应(RT-PCR) 方法,半定量检测上述基因表达水平。 结果 与正常组织比较,伤口愈合前Op18基因表达显著降低(P<0.05),愈合后表达迅速增高(
P <0.05),在4~32个月增生性瘢痕中Op18基因稳定高表达。 结论 在伤后早期Op18基因的表达水平降低与细胞增殖、组织修复的需要相适应,在增生性瘢痕组织中通过Op18基因高表达来抑制瘢痕增生。Abstract: Objective To study the expression of microtubule destabilizer-oncoprotein18/stathmin (Op18) gene in the hypertrophic scar before and after the healing of the deep partial thickness burn wound. Methods Total RNA was extracted from the hypertrophic scar of the patients with deep partial thickness burn at different time before and after the wound healing. Reverse transcriptase-polymerase chain reaction (RT-PCR) was used to detect the expression of Op18 gene with GAPDH as an internal index. Results The expression of Op18 gene in the hypertrophic scar tissue decreased significantly before wound healing, but increased rapidly after wound healing when compared with that in normal tissue(P <0.05). A sleady over-expression of Op18 gene was found in the hypertrophic scar tissue during 4 to 32 months after wound healing. Conclusion The lower expression of Op18 gene during early postburn stage met the need of cell proliferation and wound tissue repair. The scar hypertrophy could be inhibited by the over-expression of Op18gene in the hypertrophic scar tissue.-
Key words:
- Burn /
- Oncoprotein18/stathmin /
- Microtubule /
- Wound healing /
- Scar /
- Gene expression
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