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Systemic versus local injection of bone marrow mesenchymal stem cells on 5-fluorouracil treated parotid glands of albino rats / Injeção sistêmica e local de células tronco da medula óssea em glandula parotida de ratos albinos tratados com 5-Fluorouracil
Massieh, Caroline Maged; El Zainy, Medhat Ahmed; Amin, Reham Magdy Mohammad; Fathy, Iman Ahmed.
  • Massieh, Caroline Maged; The British University in Egypt. Faculty of Dentistry. Oral Biology Department. Cairo. EG
  • El Zainy, Medhat Ahmed; Ain Shams University. Faculty of Dentistry. Oral Biology Department. Cairo. EG
  • Amin, Reham Magdy Mohammad; Ain Shams University. Faculty of Dentistry. Oral Biology Department. Cairo. EG
  • Fathy, Iman Ahmed; Ain Shams University. Faculty of Dentistry. Oral Biology Department. Cairo. EG
Braz. dent. sci ; 24(4, suppl 1): 1-13, 2021. tab, ilus
Article in English | LILACS, BBO | ID: biblio-1349352
ABSTRACT

Objective:

Head and neck cancer is the sixth leading cancer by incidence worldwide and eighth by death. Recent reports revealed that, not only radiotherapy but also chemotherapy may induce xerostomia. The aim of this study was to compare the possible regenerative effect of BMSCs through systemic and local injections. Material and

Methods:

52 male Albino rats were randomly divided into 4 groups Group 1 10 rats received 0.5 ml of PBS by injection. Group 2 14 rats received an intraperitoneal injection of 5-FU drug. Group 3 14 rats were injected the same dose of 5-FU then received an intraglandular transplantation of BMSCs suspended in 0.5 ml of PBS at day 1 after 5-FU administration. Group 4 14 rats were injected the same dose of 5-FU then received an intravenous injection of BMSCs suspended in 0.5 ml of PBS via the tail vein at day 1 after 5-FU administration.

Results:

Histological examination showed that group 2 showed features of severe degenerative changes which increased over time. Group 3 showed increasing amelioration in the ductal structure overtime. Group 4 also showed regenerated ductal elements however concerning apoptotic changes, immunohistochemistry results revealed improvement in both group 3 and 4 over group 2 with no statistical difference between groups 3 and 4.

Conclusion:

Histological and immunohistochemical features in group 3 and group 4 revealed similar amelioration in regenerative potentials. On the other hand, regenerative features of both experimental groups were statistically significant as compared independently to group 1 (AU)
RESUMO

Objetivo:

O carcinoma de cabeça e pescoço é o sexto câncer de maior incidência no mundo sendo a oitava causa de morte por cancer. Relatos recentes revelaram que não apenas a radioterapia, mas também a quimioterapia podem induzir xerostomia. O objetivo desse estudo foi comparar a possivel ação regenerative de BMSCs através de injeção local e sistêmica. Material e

Métodos:

52 ratos Albino foram aleatoriamente alocados em 4 grupos Grupo 1 10 ratos que receberam 0.5 ml de injeção de PBS. Grupo 2 14 ratos que receberam injeção intraperitoneal da droga 5-FU. Grupo 3 14 ratos que foram injetados com a mesma dose de 5-FU e receberam transplante intraglandular de BMSCs ressuspendidas em 0.5mL de PBS no dia 1 após a administração do 5-FU. Grupo 4 14 ratos que foram injetados com a mesma dose de 5-FU e receberam injeção intravenosa de BMSCs ressuspendidas em 0.5mL de PBS via veia caudal 1 dia após a administração de 5-FU.

Resultados:

O exame histológico demonstrou que o grupo 2 apresentou alterações degenerativas severas que se agravaram com o tempo. O Grupo 3 mostrou melhora da estrutura ductal ao longo do experimento. Group 4 também mostrou elementos ductais regenerados. Referente a alterações apoptóticas,análise imunohistoquimica mostrou melhora nos grupos 3 e 4 comparados ao grupo 2, sendo que os grupos 3 e 4 foram estatisticamente semelhantes.

Conclusão:

Análises histológicas e imunohistoquímicas mostram que os grupos 3 e 4 apresentam melhora no potencial regenerativo Por outro lado, os resultados observados para os dois grupos foi estatisticamente semlhante quando comparados independentemente ao grupo 1 (AU)
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Salivary Glands / Mesenchymal Stem Cells / Squamous Cell Carcinoma of Head and Neck Limits: Animals Language: English Journal: Braz. dent. sci Journal subject: Dentistry / Sa£de Bucal Year: 2021 Type: Article Affiliation country: Egypt Institution/Affiliation country: Ain Shams University/EG / The British University in Egypt/EG

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Full text: Available Index: LILACS (Americas) Main subject: Salivary Glands / Mesenchymal Stem Cells / Squamous Cell Carcinoma of Head and Neck Limits: Animals Language: English Journal: Braz. dent. sci Journal subject: Dentistry / Sa£de Bucal Year: 2021 Type: Article Affiliation country: Egypt Institution/Affiliation country: Ain Shams University/EG / The British University in Egypt/EG