Guilu Erxian Glue () Inhibits Chemotherapy-Induced Bone Marrow Hematopoietic Stem Cell Senescence in Mice May via p16INK4a-Rb Signaling Pathway.
Chin J Integr Med
; 26(11): 819-824, 2020 Nov.
Article
em En
| MEDLINE
| ID: mdl-32915425
ABSTRACT
OBJECTIVE:
To evaluate the effect of Guilu Erxian Glue (, GEG) on cyclophosphamide (CTX)-induced bone marrow hematopoietic stem cells (HSCs) senescence in mice and explore the underlying mechanism.METHODS:
The H22 liver cancer ascites lump model was established in male Kunming mice by injecting intraperitoneally (i.p.) with 5 × 106/mL H22 cells per mouse. Fifty tumor-bearing mice were divided into the control, model, pifithrin-α, GEG, and GEG+pifithrin-α groups using a random number table, 10 mice in each group. CTX (100 mg/kg i.p.) was administrated to mice from day 1 to day 3 (d1-d3) continuously except for the control group. The mice in the pifithrin-α, GEG and GEG+pifithrin-α groups were treated with pifithrin-α (2.2 mg/(kg·d) i.p.) for 6 consecutive days (d4-d9), GEG (9.5 g/(kg·d) i.p.) for 9 consecutive days (d1-d9), and GEG plus pifithrin-α, respectively. HSCs were collected after 9-d drug treatment. The anti-aging effect of GEG was studied by cell viability, cell cycle, and ß -galactosidase (ß -gal) assays. The mRNA and protein expressions of cyclin-dependent kinase 2 (CDK2), CDK4, inhibitor of cyclin-dependent kinase 4a encoding the tumor suppressor protein p16 (p16INK4a), p21Cip1/Waf1, p53, and phosphorylated retinoblastoma (pRb) were evaluated by quantitative real-time reverse transcription-polymerase chain reaction and semi-quantitative Western blot, respectively.RESULTS:
Compared with the model group, GEG increased cell viability as well as proliferation (P<0.05 or P<0.01) and reduced ß -gal expression. Furthermore, GEG significantly decreased the expressions of p16INK4a, p53 and p21Cip1/Waf1 proteins, and increased the expressions of CDK2, CDK4 and pRb proteins compared with the model group (P<0.05 or P<0.01).CONCLUSION:
GEG can alleviate CTX-induced HSCs senescence in mice, and the p16INK4a-Rb signaling pathway might be the underlying mechanism.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Medicinas Tradicionais:
Medicinas_tradicionales_de_asia
/
Medicina_china
Assunto principal:
Medula Óssea
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Células-Tronco Hematopoéticas
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Medicamentos de Ervas Chinesas
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Senescência Celular
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Inibidor p16 de Quinase Dependente de Ciclina
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Ciclofosfamida
Idioma:
En
Revista:
Chin J Integr Med
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
China