Surface ultrastructural changes in chemically induced premalignant lesions in the hamster cheek pouch

1987 ◽  
Vol 16 (5) ◽  
pp. 273-277 ◽  
Author(s):  
M. B. Hassanin ◽  
S. H. Ashrafi ◽  
A. K. Das
Keyword(s):  
Premalignant Lesions ◽  
Cheek Pouch ◽  
Ultrastructural Changes ◽  
Hamster Cheek Pouch ◽  
Chemically Induced

Immunotherapy of Chemically-Induced Tumors in the Hamster Cheek Pouch with Dinitrochlorobenzene

1978 ◽  
Vol 57 (4) ◽  
pp. 625-630 ◽  
Author(s):  
Martin Marshack ◽  
Patrick Toto ◽  
Ronald Kerman
Keyword(s):  
Defense Mechanisms ◽  
Immune Defense ◽  
Lymphoid Cells ◽  
Cheek Pouch ◽  
Hamster Cheek Pouch ◽  
Time Intervals ◽  
Tumor Induction ◽  
Chemically Induced ◽  
Induced Tumors ◽  
Tumor Area

Immune stimulation with an agent such as dinitrochlorobenzene (DNCB) may delay chemcal carcinogenesis. Dimethylbenzanthracene (DMBA) was used to chemically induce tumors in the hamster buccal pouch. Hamsters were studied for the effect of DNCB sensitization in the buccal pouch prior to or after DMBA tumor induction. At appropriate time intervals the hamsters were sacrificed and each cheek pouch was examined histologically for the development of DMBA-induced tumors and for the presence of lymphoid cells infiltrating the tumor site. The results show that DNCB immunotherapy or immunoprophylaxis prior to or following DMBA tumor induction can alter the type of tumor produced and stimulate an infiltration of lymphoid cells into the tumor area probably invoking immune defense mechanisms.

scholarly journals Effects of aqueous cinnamon extract on chemically-induced carcinoma of hamster cheek pouch mucosa

2017 ◽  
Vol 12 ◽  
pp. 72-78 ◽  
Author(s):  
Samah K. Ezzat ◽  
Mazen T. AbuElkhair ◽  
Mohamed I. Mourad ◽  
Mohamed E. Helal ◽  
Mohammed E. Grawish
Keyword(s):  
Cheek Pouch ◽  
Hamster Cheek Pouch ◽  
Cinnamon Extract ◽  
Chemically Induced

Activating mutation of the Ha-ras gene in chemically induced tumors of the hamster cheek pouch

1992 ◽  
Vol 5 (4) ◽  
pp. 259-263 ◽  
Author(s):  
Irma B. Gimenez-Conti ◽  
Albert B. Bianchi ◽  
Sharon L. Stockman ◽  
Claudio J. Conti ◽  
Thomas J. Slaga
Keyword(s):  
Cheek Pouch ◽  
Hamster Cheek Pouch ◽  
Ras Gene ◽  
Chemically Induced ◽  
Induced Tumors ◽  
Activating Mutation
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