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Human.

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Presentation on theme: "Human."— Presentation transcript:

1 Human

2 MMP-9 SACCHACHITIN MMP-9 Control 大鼠傷口中MMP-9之變化

3 MMPs 結果顯示無論體內或體外試驗均證實SACCHACHITIN具有結合MMP之 功能。

4 Growth Factor ?

5 TGF-b

6 PDGF

7 VEGF

8 大鼠傷口中之 Growth factors在創傷發生之初期,均有 明顯上升。
其原因可能因為,SACCHACHITIN結合MMPs,使自體產生之Growth factors 受到保護而明顯上升。

9 Collagen piling ?

10 Proliferating cell nuclear antigen (PCNA)
1 3 14 days Control SACCHACHITIN Proliferating cell nuclear antigen (PCNA)

11 1 3 14 days Control SACCHACHITIN Type I collagen

12 同樣情況Collagen也因而增加。 此一情況,也有助於傷口癒合。

13 Bacterial Inhibition ? SACCHACHITIN是否也能抑制細菌生長?
Gram (+) 細菌沒有LPS Gram (-)細菌具有LPS 如果SACCHACHITIN會與LPS 結合而抑制

14 Gram (-) LPS(脂多醣) Protease

15 由於SACCHACCHITIN與LPS結合,造成G(-)細菌死亡。

16 Gram (+) (沒有脂多醣) 是否可抑制細菌的Protease?

17 A:10 % Gelatin + Litmus B:10 % Gelatin + 0.5 % Chitosan + Litmus C:10 % Gelatin + Bacteria + Litmus D:10 % Gelatin + 0.5 % Chitosan + Bacteria + Litmus

18

19 Zymography → protease Bacteria 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5
62 kD 49 kD 38 kD 98 kD 148 kD 1.marker 2. 0.mg/ml mg/ml mg/ml mg/ml Bacteria E. coli P. aureginosa B. subtilis S. aureus 62 kD 49 kD 38 kD 98 kD 148 kD

20 Inhibition of Bacteria
Binding of LPS Inhibition of proteases 因而抑制細菌。

21 SACCACHITIN Binding of MMPs Binding of proteases from microbes Collagen piling Cell proliferation Growth factors increases Acceleration of wound healing


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