National Breast and Cervical Cancer Early Detection Program partnerships in action.

Since the inception of the Centers for Disease Control and Prevention (CDC) National Breast and Cervical Cancer Early Detection Program (NBCCEDP) in 1990, partnerships have played a significant role in providing breast and cervical cancer screening and early detection to uninsured and underinsured women. The state, tribal, and territorial NBCCEDP grantees have shared resources and responsibilities with a variety of partners (eg, community-based organizations, government agencies, tribes, health care systems, companies, professional organizations) to achieve common goals. National partners, such as the American Cancer Society, Susan G. Komen for the Cure, and the Avon Foundation for Women, have provided funding, lobbied for national and state funding, supported outreach and education activities, and provided treatment referral services for the programs. This article provides an overview of grantee partnerships to illustrate the effects, successes, and challenges of these partnerships and how they have affected the populations served by the program.

Inhibition of cyclooxygenase-2 decreases breast cancer cell motility, invasion and matrix metalloproteinase expression.

BACKGROUND: Cyclooxygenase (COX) is the rate-limiting enzyme that catalyzes the formation of prostaglandins. The inducible isoform of COX (COX-2) is highly expressed in aggressive metastatic breast cancers and may play a critical role in cancer progression (i.e. growth and metastasis). However, the exact mechanism(s) for COX-2-enhanced metastasis has yet to be clearly defined. It is well established that one of the direct results of COX-2 action is increased prostaglandin production, especially prostaglandin E2 (PGE2). Here, we correlate the inhibition of COX-2 activity with decreased breast cancer cell proliferation, migration, invasion and matrix metalloproteinase (MMP) expression. METHODS: Breast cancer cells (Hs578T, MDA-MB-231 and MCF-7) were treated with selective COX-2 inhibitors (NS-398 and Niflumic acid, NA). Cell proliferation was measured by staining with erythrosin B and counting the viable cells using a hemacytometer. Cell migration and invasion were measured using migration and invasion chamber systems. MMP expression was determined by enzyme immunoassay (secreted protein) and real-time quantitative polymerase chain reaction (mRNA). RESULTS: Our results show that there is a decline in proliferation, migration and invasion by the Hs578T and MDA-MB-231 breast cancer cell lines in the presence of either low concentrations (1 microM or lower) NA or NS-398. We also report that MMP mRNA and protein expression by Hs578T cells is inhibited by NS-398; there was a 50% decrease by 100 muM NS-398. PGE2 completely reversed the inhibitory effect of NS-398 on MMP mRNA expression. CONCLUSION: Our data suggests that COX-2-dependent activity is a necessary component for cellular and molecular mechanisms of breast cancer cell motility and invasion. COX-2 activity also modulates the expression of MMPs, which may be a part of the molecular mechanism by which COX-2 promotes cell invasion and migration. The studies suggest that COX-2 assists in determining and defining the metastatic signaling pathways that promote the breast cancer progression to metastasis.

Content analysis of continuing medical education for cervical cancer screening.

BACKGROUND: Since 2003, newer cervical cancer screening guidelines that include human papillomavirus (HPV) testing with cytology (HPV co-testing) call for extension of screening intervals in women who are cytology normal and HPV negative. Continuing medical education (CME) may help increase knowledge and appropriate adoption of new technologies and guidelines. However, there are concerns that industry support of CME may bias messages favoring newer technologies without emphasizing the updated guidelines, especially less frequent testing recommendations. Our objectives were to assess availability and accuracy of web-based CME activities describing cervical cancer screening guidelines, screening intervals, and HPV testing. METHODS: We identified 20 web-based CME activities available between 2006 and 2008 and evaluated the content for messages related to HPV and natural history, cervical cancer screening guidelines, management of HPV abnormalities, and counseling tips for patients. In addition to content, we noted funding source, credit offered, and dates available. RESULTS: Most activities (80%) discussed the updated screening guidelines with HPV co-testing for eligible women. Twelve activities (60%) referenced professional organization support of the extended screening interval with the HPV co-test, and three (15%) discussed the justification for extension of intervals for eligible women. Eight activities (40%) were funded by industry, seven of which included accurate, updated screening guidelines about extension of screening intervals. CONCLUSIONS: Web-based CME activities generally support updated guidance for HPV co-testing and extended screening intervals but need more information on counseling patients and acceptability of extending screening intervals.