scholarly journals The Fate of Circulating Walker 256 Tumour Cells injected Intravenously in Rats

1963 ◽  
Vol 17 (3) ◽  
pp. 546-557 ◽  
Author(s):  
J D Griffiths ◽  
A J Salsbury
Keyword(s):  
Tumour Cells ◽  
Walker 256 Tumour ◽  
Walker 256

scholarly journals Chronic Glibenclamide Treatment Attenuates Walker-256 Tumour Growth in Prediabetic Obese Rats

2017 ◽  
Vol 42 (1) ◽  
pp. 81-90 ◽  
Author(s):  
Claudinéia Conationi da Silva Franco ◽  
Carina Previate ◽  
Kátia Gama de Barros Machado ◽  
Silvano Piovan ◽  
Rosiane Aparecida Miranda ◽  
...  
Keyword(s):  
Tumour Growth ◽  
Tumour Cells ◽  
Diabetic Patients ◽  
Adult Rats ◽  
Walker 256 Tumour ◽  
Tumour Growth Inhibition ◽  
Walker 256 ◽  
Growth Methods ◽  
Tumour Weight

Background/Aims: The sulphonylurea glibenclamide (Gli) is widely used in the treatment of type 2 diabetes. In addition to its antidiabetic effects, low incidences of certain types of cancer have been observed in Gli-treated diabetic patients. However, the mechanisms underlying this observation remain unclear. The aim of the present work was to evaluate whether obese adult rats that were chronically treated with an antidiabetic drug, glibenclamide, exhibit resistance to rodent breast carcinoma growth. Methods: Neonatal rats were treated with monosodium L-glutamate (MSG) to induce prediabetes. Control and MSG groups were treated with Gli (2 mg/kg body weight/day) from weaning to 100 days old. After Gli treatment, the control and MSG rats were grafted with Walker-256 tumour cells. After 14 days, grafted rats were euthanized, and tumour weight as well as glucose homeostasis were evaluated. Results: Treatment with Gli normalized tissue insulin sensitivity and glucose tolerance, suppressed fasting hyperinsulinaemia, reduced fat tissue accretion in MSG rats, and attenuated tumour growth by 27% in control and MSG rats. Conclusions: Gli treatment also resulted in a large reduction in the number of PCNA-positive tumour cells. Although treatment did improve the metabolism of pre-diabetic MSG-rats, tumour growth inhibition may be a more direct effect of glibenclamide.

scholarly journals A Time-Course Comparison of Skeletal Muscle Metabolomic Alterations in Walker-256 Tumour-Bearing Rats at Different Stages of Life

Metabolites ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 404
Author(s):  
Gabriela de Matuoka e Chiocchetti ◽  
Leisa Lopes-Aguiar ◽  
Natália Angelo da Silva Miyaguti ◽  
Lais Rosa Viana ◽  
Carla de Moraes Salgado ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Time Course ◽  
Cancer Cachexia ◽  
Tumour Bearing ◽  
Walker 256 Tumour ◽  
Walker 256 ◽  
Muscle Changes ◽  
The Right ◽  
Biomarker Research ◽  
Host Metabolism

Cancer cachexia is a severe wasting condition that needs further study to find ways to minimise the effects of damage and poor prognosis. Skeletal muscle is the most impacted tissue in cancer cachexia; thus, elucidation of its metabolic alterations could provide a direct clue for biomarker research and be applied to detect this syndrome earlier. In addition, concerning the significant changes in the host metabolism across life, this study aimed to compare the metabolic muscle changes in cachectic tumour-bearing hosts at different ages. We performed 1H-NMR metabolomics in the gastrocnemius muscle in weanling and young adult Walker-256 tumour-bearing rats at different stages of tumour evolution (initial, intermediate, and advanced). Among the 49 metabolites identified, 24 were significantly affected throughout tumour evolution and 21 were significantly affected regarding animal age. The altered metabolites were mainly related to increased amino acid levels and changed energetic metabolism in the skeletal muscle, suggesting an expressive catabolic process and diverted energy production, especially in advanced tumour stages in both groups. Moreover, these changes were more severe in weanling hosts throughout tumour evolution, suggesting the distinct impact of cancer cachexia regarding the host’s age, highlighting the need to adopting the right animal age when studying cancer cachexia.

scholarly journals Moderate exercise training since adolescence reduces Walker 256 tumour growth in adult rats

2019 ◽  
Vol 597 (15) ◽  
pp. 3905-3925 ◽  
Author(s):  
Veridiana Mota Moreira ◽  
Douglas Almeida ◽  
Claudinéia Conationi da Silva Franco ◽  
Rodrigo Mello Gomes ◽  
Kesia Palma‐Rigo ◽  
...  
Keyword(s):  
Exercise Training ◽  
Tumour Growth ◽  
Moderate Exercise ◽  
Adult Rats ◽  
Walker 256 Tumour ◽  
Walker 256 ◽  
Moderate Exercise Training

scholarly journals Changes in liver gluconeogenesis during the development of Walker-256 tumour in rats

2013 ◽  
Vol 94 (1) ◽  
pp. 47-55 ◽  
Author(s):  
Carolina Campos Lima Moreira ◽  
Priscila Cassolla ◽  
Ana Paula Segantini Dornellas ◽  
Hely de Morais ◽  
Camila Oliveira de Souza ◽  
...  
Keyword(s):  
Walker 256 Tumour ◽  
Walker 256

Walker 256 tumour growth causes marked changes of glutamine metabolism in rat small intestine

2002 ◽  
Vol 20 (2) ◽  
pp. 107-113 ◽  
Author(s):  
Manuela M. Ramos Lima ◽  
Maria Alice R. de Mello ◽  
Rui Curi
Keyword(s):  
Small Intestine ◽  
Tumour Growth ◽  
Glutamine Metabolism ◽  
Rat Small Intestine ◽  
Walker 256 Tumour ◽  
Walker 256

scholarly journals Walker-256 Tumour-Induced Cachexia Altered Liver Metabolomic Profile and Function in Weanling and Adult Rats

Metabolites ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 831
Author(s):  
Natália Angelo da Silva Miyaguti ◽  
Gabriela de Matuoka e Chiocchetti ◽  
Carla de Moraes Salgado ◽  
Leisa Lopes-Aguiar ◽  
Lais Rosa Viana ◽  
...  
Keyword(s):  
Young Adult ◽  
Cancer Cachexia ◽  
Liver Lipid ◽  
Preclinical Model ◽  
Energy Status ◽  
Advanced Cancer Patients ◽  
Adult Rats ◽  
Tumour Bearing ◽  
Walker 256 Tumour ◽  
Walker 256

Cancer cachexia occurs in up to 85% of advanced cancer patients, affecting different tissues and organs, mainly the liver, which plays a central role in body metabolism control. However, liver responses to cancer cachexia progression are still poorly understood. Considering the possible different challenges provided by the rodent’s phase of life and the cachexia progression, we evaluated the liver metabolic alterations affected by Walker-256 tumour growth in weanling and young-adult rats. For this, we applied a metabolomics approach associated with protein and gene expression analyses. Higher amino acid levels and impaired glucose metabolism were important features in tumour-bearing animals’ liver tissue. The weanling hosts had more pronounced cachexia, with higher carcass spoliation, liver lipid metabolism and impaired CII and CIV mitochondrial complexes. The liver alterations in young adult tumour-bearing rats were related to energy status and nucleotide metabolites, such as uridine, NAD+, xanthosine, hypoxanthine and inosine. In conclusion, the Walker-256 tumour-induced cachexia impaired liver metabolism, being more severe in the weanling hosts. Further studies are needed to correlate these changes in the preclinical model, which can be correlated to the clinical features of cancer cachexia, allowing for a translational potential involving the liver function and its responses to potential treatments.

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