One of the most common cancer types worldwide is Bladder Cancer (BCa). It is the third most common cancer in men but eleventh in women. In last year 72570 new cases and 72570 deaths from BCa have been recorded in United States.
Colorectal Cancer (CRC), also called with the name of the different parts of large bowel, is a cancer of the whole large bowel (ascending, descending, transvers colon, rectum and the appendix).
During the history of science, none but cancer has been the most popular topic of research. Description of cancer as a disease can be traced back to ancient documents such as in The Ebers Papyrus of ancient Egypt (15th century B.C); Mesopotamian cuneiform scripts and ancient Indian texts.
Leukemia’s are a diverse group of diseases, which vary from each other in etiology, pathogenesis, prognosis and responsiveness to therapy.
First recordings which may be important as regards experimental studies of cancer model are derived from tumor studies that are made in the 1890s and are used in particular chemical carcinogens.
Experimental animal models are one of the most important way to understand the carcinogenesis. Many kinds of experimental models were developed for different cancers, such as stomach, skin, breast etc.