TENG Guang-fei,LIU Fu-lin,XIA Xu-ting,et al.Efficacy of Zhizhuwan Decoction and Its Ingredient-contained Serums on Proliferation and Apoptosis of Rat Colon Interstitial Cells of Cajal[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(19):120-126.
TENG Guang-fei,LIU Fu-lin,XIA Xu-ting,et al.Efficacy of Zhizhuwan Decoction and Its Ingredient-contained Serums on Proliferation and Apoptosis of Rat Colon Interstitial Cells of Cajal[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(19):120-126. DOI: 10.13422/j.cnki.syfjx.20201709.
Efficacy of Zhizhuwan Decoction and Its Ingredient-contained Serums on Proliferation and Apoptosis of Rat Colon Interstitial Cells of Cajal
To explore the efficacy and molecular mechanism of Zhizhuwan decoction and its ingredient-contained serums on the proliferation and apoptosis of rat colon interstitial cells of cajal (ICC)
and make a molecule-level analysis of the possible mechanism of traditional Chinese medicine (TCM) purgation-tonifying therapy in treating slow transit constipation (STC).
Method
2
A total of 40 rats were divided into Atractylodis Macrocephalae Rhizoma(AMR) group
Aurantii Fructus Immaturus(AFI) group
Zhizhuwan group and blank serum group on random basis
with 10 in each group. Baizhu group was given 17.7 g·kg
-1
·d
-1
of AMR decoction by gavage
AFI group was given 8.9 g·kg
-1
·d
-1
AFI decoction by gavage
Zhizhuwan group was given 26.4 g·kg
-1
·d
-1
Zhizhuwan decoction by gavage
and blank serum group was given 3 mL sterile distilled water for 7 consecutive days
once a day. Drug-contained serums and blank serum were collected from blood of the above groups and diluted to 5%
10%
15% and 20% concentrations. Each concentration was intervened for 24 h and 48 h
and the amount and status of ICC were observed. The best intervening concentration and time for each group with cell counting kit-8 (CCK-8) were determined. Rat colon ICC was divided into blank control group
blank serum group
AMR group
AFI group and Zhizhuwan group. ICC proliferation for each group was detected with EdU
ICC apoptosis for each group was detected by flow cytometry
and expressions of X-linked inhibitor of apoptosis protein (XIAP) and proliferating cell nuclear antigen (PCNA) were detected by Western blot.
Result
2
Compared with the normal group
the best intervention concentration for blank serum group
AMR group and AFI group was 10%
while that for Zhizhuwan group was 5%. The best intervention times for the above groups were all 24 h. No distinct difference between the effect of blank control group and blank serum group on the proliferation and apoptosis of ICC was observed. In comparison with blank control group and blank serum group
AMR group
AFI group and Zhizhuwan group showed significant changes in ICC proliferation rate (
P
<
0.05,
P
<
0.01). There was a greater increase in ICC proliferation rate of Zhizhuwan group than that of AMR group and Zhizhu group (
P
<
0.05,
P
<
0.01)
with no distinct difference between the changes of ICC proliferation rates in AMR group and AFI group. There was no significant difference between the changes of ICC apoptosis rates in AMR group
AFI group and Zhizhuwan group than in blank control group and blank serum group. There were significant increases in the expressions of XIAP and PCNA in AMR group
AFI group and Zhizhuwan group than in blank control group and blank serum group (
P
<
0.05,
P
<
0.01), but with little difference among the three groups.
Conclusion
2
At certain concentrations
Zhizhuwan
AFI and AMR all have the effect in improving ICC proliferation by increasing XIAP and PCNA expressions
with no evident effect on the apoptosis of ICC
based on TCM purgation-tonifying therapy
Zhizhuwan has the effect in improving ICC proliferation
with a better effect than single administration with AFI or AMR.
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WANG L M , MCNALLY M , HYLAND J , et al . Assessing interstitial cells of Cajal in slow transit constipation using CD117 is a useful diagnostic test [J]. Am J Surg Pathol , 2008 , 32 ( 7 ): 980 - 985 .