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第45卷第8期 汪 洁,方瑞琪,李 猛,等. Tyro3缺失加重LPS诱导的小鼠内毒素血症[J].
2025年8月 南京医科大学学报(自然科学版),2025,45(8):1123-1131 ·1127 ·
显示,LPS造模后,肝脏损伤明显,出血严重,大量炎 Tyro3 小鼠血浆中 AST、ALT 和 ALP 水平均明显上
-/-
细胞浸润(黑色箭头所指),Tyro3 小鼠肝脏病理损 升,Tyro3 小鼠上升更明显,这进一步证明 Tyro3 的
-/-
-/-
伤更严重(图 4A、B)。在 LPS 造模后,Tyro3 和 缺失加重LPS诱导的小鼠急性肝损伤(图4C~E)。
+/+
A Tyro3 +/+ B Tyro3 +/+ C *** Tyro3 +/+
*** ***
Tyro3 -/- Tyro3 -/- ** ** Tyro3 -/-
25 *** *** mRNA levels 20 *** *** mRNA levels 5 4
Relative IL⁃6 mRNA levels 15 Relative TNF⁃α 10 Relative IL⁃1β 3 2
20
15
10
0 5 5 0 1 0
Ctrl LPS Ctrl LPS Ctrl LPS
D Tyro3 +/+ E *** Tyro3 +/+
***
Tyro3 -/- Tyro3 -/-
800 250 ** ***
** ** 200
(pg/mL) 600 (pg/mL) 150
400
IL⁃6 TNF⁃α 100
200
50
0 0
Ctrl LPS Ctrl LPS
Tyro3 +/+ and Tyro3 -/- mice were intraperitoneally injected with either normal saline(Ctrl)or LPS(10 mg/kg)for 12 h. A-C:The mRNA levels of
hepatic inflammatory cytokines IL⁃6(A),TNF⁃α(B),and IL⁃1β(C)relative to the housekeeping gene GAPDH were quantified by RT⁃qPCR in mice.
***
**
D,E:ELISA was used to measure the levels of plasma inflammatory cytokines IL⁃6(D)and TNF⁃α(E)in mice. P < 0.01, P < 0.001(n=6).
图3 Tyro3的缺失加重LPS诱导的小鼠全身炎症
Figure 3 Tyro3 deficiency exacerbated LPS⁃induced systemic inflammation in mice
A Ctrl LPS Ctrl LPS
Tyro3 +/+ Tyro3 -/-
100 μm 100 μm 100 μm 100 μm
B Tyro3 +/+ C Tyro3 +/+ D Tyro3 +/+ E Tyro3 +/+
Tyro3 -/- Tyro3 -/- Tyro3 -/- Tyro3 -/-
*** *** *** ***
8 *** *** 150 *** *** 150 *** ** 250 *** ***
Liver histology score 6 4 (U/L) Serum AST 100 (U/L) Serum ALT 100 (U/L) Serum ALP 150
200
100
50
50
0 2 0 0 50 0
Ctrl LPS Ctrl LPS Ctrl LPS Ctrl LPS
Tyro3 +/+ and Tyro3 -/- mice were intraperitoneally injected with either normal saline(Ctrl)or LPS(10 mg/kg)for 12 h. A,B:The representative
images of LPS⁃induced histopathological alterations in liver tissue(A)and the corresponding liver histology score(B)(HE,scale bar=100 μm).
**
***
C-E:Measurement of serum AST(C),ALT(D),and ALP(E)levels in mice. P < 0.01, P < 0.001(n=6).
图4 Tyro3的缺失加重LPS诱导的小鼠急性肝损伤
Figure 4 Tyro3 deficiency exacerbated LPS⁃induced acute liver injury in mice

