Affiliation
Breast Biology Group, Division of Cancer Studies, Faculty of Medicine and Human Sciences, University of Manchester, Paterson Institute for Cancer Research, Wilmslow Road, Manchester, M20 4BX, UK.Issue Date
2007-06
Metadata
Show full item recordAbstract
Adult stem cells are found in numerous tissues of the body and play a role in tissue development, replacement and repair. Evidence shows that breast stem cells are multipotent and can self renew, which are key characteristics of stem cells, and a single cell enriched with cell surface markers has the ability to grow a fully functional mammary gland in vivo. Many groups have extrapolated the cancer stem cell hypothesis from the haematopoietic system to solid cancers, where using in vitro culture techniques and in vivo transplant models have established evidence of cancer stem cells in colon, pancreas, prostate, brain and breast cancers. In the report we describe the evidence for breast cancer stem cells; studies consistently show that stem cell like and breast cancer initiating populations can be enriched using cell surface makers CD44+/CD24- and have upregulated genes which include Notch. Notch signalling has been highlighted as a pathway involved in the development of the breast and is frequently dysregulated in invasive breast cancer. We have investigated the role of Notch in a pre-invasive breast lesion, ductal carcinoma in situ (DCIS), and have found that aberrant activation of Notch signalling is an early event in breast cancer. High expression of Notch 1 intracellular domain (NICD) in DCIS also predicted a reduced time to recurrence 5 years after surgery. Using a non-adherent sphere culture technique we have grown DCIS mammospheres from primary DCIS tissue, where self-renewal capacity, measured by the number of mammosphere initiating cells, were increased from normal breast tissue. A gamma-secretase inhibitor, DAPT, which inhibits all four Notch receptors and a Notch 4 neutralising antibody were shown to reduce DCIS mammosphere formation, indicating that Notch signalling and other stem cell self-renewal pathways may represent novel therapeutic targets to prevent recurrence of pre-invasive and invasive breast cancer.Citation
Mammary stem cells and breast cancer--role of Notch signalling. 2007, 3 (2):169-75 Stem Cell RevJournal
Stem Cell ReviewsPubMed ID
17873349Type
ArticleLanguage
enISSN
1550-894310.1007/s12015-007-0023-5
Collections
Related items
Showing items related by title, author, creator and subject.
-
Treatment for non small cell lung cancer, small cell lung cancer and pleural mesothelioma within the EORTC Lung Cancer Group: past, present and future.O'Brien, M; van Meerbeeck, J; Surmont, V; Faivre-Finn, Corinne (2012)
-
Ovarian cancer among 8,005 women from a breast cancer family history clinic: no increased risk of invasive ovarian cancer in families testing negative for BRCA1 and BRCA2.Ingham, S; Warwick, J; Buchan, I; Sahin, S; O'Hara, Catherine; Moran, Anthony; Howell, Anthony; Evans, D; Centre for Health Informatics, Institute of Population Health, The University of Manchester, Manchester, UK. (2013-06)Mutations in BRCA1/2 genes confer ovarian, alongside breast, cancer risk. We examined the risk of developing ovarian cancer in BRCA1/2-positive families and if this risk is extended to BRCA negative families.
-
AZD8186 study 1: phase I study to assess the safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD) and preliminary anti-tumour activity of AZD8186 in patients with advanced castration-resistant prostate cancer (CRPC), squamous non-small cell lung cancer, triple negative breast cancer and with PTEN-deficient/mutated or PIK3CB mutated/amplified malignancies, as monotherapy and in combination with vistusertib (AZD2014) or abiraterone acetate.Lillian, S; De Bono, J; Higano, C; Shapiro, G; Brugger, W; Mitchell, P; Colebrook, S; Klinowska, T; Barry, S; Dean, Emma J; et al. (2016-12)