| CANCER PREVENTION An American Cancer Society (ACS) report points out that at least 50 per cent of all cancer deaths in the United States could be prevented if Americans make lifestyle adjustments and undergo regular screening for the deadly disease. Poor nutrition, physical inactivity, overweight, obesity and other lifestyle factors are the key causes for cancers. Lifestyle changes are important to prevent cancer. However, regular screening and tests for detecting cancers are important. Screening can find cancers at their earliest stages, when they are easier to treat. In the screening colorectal cancer, polyps can be removed before they turn into cancer. ACS Report: Cancer prevention and early detection facts and figures 2005, CPED2005v5PWSSecured |
| UNDERSTAND MORE ABOUT CANCERS...... Jones JC et al, Northwest University noticed collagen VII localized to the basement membrane zone of cancer cells [1]. Wetzels et al, University Hospital, The Netherlands,concluded that invasive and metastatic tumors do not express extensively type VII collagen except bladder cancer, squamous cancer of the lung, cancers of the head and neck region etc. [4]. PROSTATE CANCER Immunohistochemical studies of prostate carcer reveal that most primary cancer, including high-grade tumors, are surrounded by a basal lamina composed of laminin, type IV collagen, and entactin. [5] BLADDER In invasive bladder cancers, the majority showed either loss of alpha 6 beta 4 and/or collagen VII expression or showed a lack of co-localization of alpha 6 beta 4 and collagen VII. [6] CNS CANCER Scattered abnormal vessels showed neo-expression of type VII collagen in about half of the astrocytic and ependymal tumours. [8] SKIN CANCERType VII collagen retained a more linear, continuous and uniform distribution in the areas of progressed epithelial dysplasia. [9] POSSIBLE APPLICATIONS Khavari et al at Standard University deduced that collagen VII protein fragment might be necessary to allow cancer to form. [10] [1] Jones JC et al, Hemidesmosomes, collagen VII, and intermediate filaments in basal cell carcinoma, J Invest Dermatol. 1989 Nov;93(5):662-71.[4] Wetzels RH et al, Distribution patterns of type VII collagen in normal and malignant human tissues, Am J Pathol. 1991 Aug;139(2):451-9.[5] Nagle RB et al, Adhesion molecules, extracellular matrix, and proteases in prostate carcinoma, J Cell Biochem Suppl. 1994;19:232-7.[6] Liebert M et al, Loss of co-localization of alpha 6 beta 4 integrin and collagen VII in bladder cancer, Am J Pathol. 1994 Apr;144(4):787-95.[8] Paulus W et al, Expression of type VII collagen, the major anchoring fibril component, in normal and neoplastic human nervous system. Virchows Arch. 1995;426(2):199-202. 9] Kopf-Maier P et al, Behavior of the basement membrane during carcinoma cell invasion in chemically induced carcinomas of the skin, Acta Anat (Basel). 1996;155(1):1-13 [10] Protein that helps skin cancer spread identified by Stanford researchers, Newswire, 2005-03-18, Science, March 18, 2005. [DETAILS} |
| Why are certain groups of people at higher risks for cancers? Studies have shown that lifestyle and dietary measures can prevent 30-40 percent of all cancers. This article reports the most recent findings that help fight against cancers. |
