Abstract:
:Analysis of germline p53 mutations in breast cancer reveals that the Li-Fraumeni and Li-Fraumeni-like syndromes are mostly related to the loss of initiation codon 133 of regulatory TP53 isoforms (Delta133p53). In eight codons of exons 5-8 (including 133), mutations are frequent in Li-Fraumeni-related, but scarce in sporadic breast cancer, while in six more codons they are frequent both in familial and sporadic breast cancers. At the proximity of these codons, we observed in somatic mutation databases, 16 codons (minihotspots mostly in exons 7, 8) which undergo frequent G:C > A:T transitions (non-CpG) in all sporadic cancers. In addition, in sporadic breast cancer we observed 35 adjacent codons in which the following types of mutation are observed: frequent G:C > A:T transitions at CCs/GGs, frequent silent mutations in exons 5,6 and suppressed nonsense mutations (5 codons, few records). Non-CpG G:C > A:T transitions in the 35 codons are rare in familial cancers (p53, BRCA1, or BRCA2-related), but frequent in sporadic cancers in organs where Li-Fraumeni-related carcinogenesis is common e.g. adrenal cortex, soft tissues. These data are in support of the following tissue-specific processes: in sporadic breast cancer (sarcomas etc.), loss of methylation sites (in 35 codons mostly next to codon 133), might lead to loss of silencing of TP53 isoforms which are suppressed in these tissues. On the contrary, "spreading" of cytosine methylation (asymmetric) in a G:C-rich region next to common hotspots (codons 238-252 in minihotspots) and mutagenesis probably destabilizes all tissues. Frequent C > T activation at non-CpG is also observed in prostate sporadic cancer, which similarly to breast, undergoes age-related crisis. The above data reveal that tissue-specific epigenetic regulatory mechanisms might be involved in p53 instability.
journal_name
Breast Cancer Res Treatjournal_title
Breast cancer research and treatmentauthors
Kouidou S,Malousi A,Kyventidis A,Fragou A,Maglaveras Ndoi
10.1007/s10549-007-9514-ysubject
Has Abstractpub_date
2007-12-01 00:00:00pages
351-60issue
3eissn
0167-6806issn
1573-7217journal_volume
106pub_type
杂志文章abstract:PURPOSE:TP53 mutation is the most common mutation in breast cancer, and it is considered a target marker of triple-negative breast cancer (TNBC). We investigated whether expression of p53 detected by immunochemical staining predicts the chemotherapy response of TNBC. METHODS:A total of 11,393 TNBC patients who had bet...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-018-4928-2
更新日期:2018-11-01 00:00:00
abstract:PURPOSE:To determine if response to endocrine therapy of breast cancer can be predicted by either a metabolic "flare reaction" detected by positron emission tomography (PET) with 2-[(18)F]-fluoro-2-deoxyglucose (FDG), induced by an estradiol challenge, or by estrogen-receptor (ER) status, determined by PET with the est...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-008-9953-0
更新日期:2009-02-01 00:00:00
abstract::From January 1992 to July 1993, 28 patients with metastatic breast cancer were entered in a phase II trial to assess the activity and toxicity of the combination of mitoxantrone, 5-fluoruracil, and leucovorin. Patients were eligible if they had progressive disease after either adjuvant (2 patients) or previous chemoth...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章
doi:10.1007/BF01806146
更新日期:1996-01-01 00:00:00
abstract::Epidemiological and experimental studies suggest that isoflavones may protect against breast cancer by acting as estrogen agonists or antagonists. A case-control study was conducted in southeast China in 2004-2005 to examine the association between dietary isoflavone intake and breast cancer risk by estrogen receptor ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-009-0354-9
更新日期:2009-12-01 00:00:00
abstract::The mechanism of action of the pure antiestrogens ICI 164384 and ICI 182780 has been investigated. Both antagonists are steroidal antiestrogens with 7 alpha-alkylamide side-chains. The antiestrogens reduce the cellular content of the estrogen receptor by reducing the half-life of the protein. A potential mechanism for...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF00689686
更新日期:1993-01-01 00:00:00
abstract::Estrogen receptor alpha (ERalpha) is a well-known target for signaling pathways originating from growth factor receptors. Reactive oxygen species (ROS) can induce activation of extracellular response kinase 1/2 (Erk1/2) and protein kinase B (Akt). Both kinases have been implicated in the phosphorylation of serine 118 ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-008-0221-0
更新日期:2009-11-01 00:00:00
abstract:PURPOSE:To address the widespread concern that false-positive results during breast MRI screening may have adverse psychological effects. METHODS:Impact of Event Scale measurements in 103 high-risk women enrolled in a longitudinal MRI screening study and comparison of subjects with normal results vs. those with prior ...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章
doi:10.1007/s10549-008-0140-0
更新日期:2009-05-01 00:00:00
abstract::The biology of breast cancer in Japan appears to be changing in that, while post-menopausal Japanese patients have a better prognosis than comparable British women, no differences in recurrence or survival rates can now be found in pre-menopausal patients. ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF02633545
更新日期:1991-05-01 00:00:00
abstract::We describe a method for the isolation of free DNA from ductal lavage (DL) and nipple aspirate fluid (NAF), and its evaluation for the presence of LOH at the BRCA1 and FHIT genes and for mitochondrial DNA (mtDNA) mutations at the D310 marker, to improve early detection of breast cancer. We evaluated 26 DL and six NAF ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/B:BREA.0000018406.03679.2e
更新日期:2004-03-01 00:00:00
abstract::One of the most efficacious primary therapies in HER2-positive breast cancer was published by the M.D. Anderson group in 2005. This randomized trial evaluated the addition of trastuzumab to a taxane-anthracycline based chemotherapy. Despite largely significant differences in pathological complete response (pCR) in the...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章
doi:10.1007/s10549-012-2149-7
更新日期:2012-08-01 00:00:00
abstract::Transcutaneous electrical nerve stimulation (TENS) is primarily used for pain reduction and is thought to activate neural fibers modifying vascular resistance and local blood flow influencing flap necrosis. This study aimed to delineate the effects of TENS on the viability of skin flaps created during mastectomy in br...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s10549-009-0335-z
更新日期:2009-10-01 00:00:00
abstract:PURPOSE:Aberrant DNA methylation occurs frequently in breast carcinogenesis. Tools for translational epigenetic studies of breast cancer involving formalin-fixed paraffin-embedded (FFPE) human tissues have now been developed. Few studies have measured genome-wide methylation in DNA derived from paraffin-embedded tumour...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-016-3971-0
更新日期:2016-11-01 00:00:00
abstract:PURPOSE:This study investigates weight trajectories in pre- versus postmenopausal breast cancer (BC) survivors diagnosed with hormone receptor-positive tumors, with a specific focus on discerning menopausal status and type of endocrine treatment (ET) as risk factors for weight gain during ET. METHODS:We conducted a re...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-017-4501-4
更新日期:2018-01-01 00:00:00
abstract:PURPOSE:Triple-negative breast cancers (TNBC) are aggressive tumours that exhibit abundant lymphoid infiltrates which modulate tumour behaviour. Recent findings suggest that TNBC with higher densities of plasma cells are associated with a favourable prognosis, and tertiary lymphoid structures (TLS) have prognostic sign...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-020-05548-y
更新日期:2020-04-01 00:00:00
abstract::Mammographic density is a strong risk factor for breast cancer, but limited data are available in African American (AA) women. We examined the association between mammographic density and breast cancer risk in AA and white women. Cases (n = 491) and controls (n = 528) were from the Carolina Breast Cancer Study (CBCS) ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-012-2185-3
更新日期:2012-09-01 00:00:00
abstract::Knowledge of the family history of cancer may significantly influence diagnosis and surgical management. Hereditary breast cancer (HBC) is common and accounts for approximately 9% of the total breast cancer burden. The pattern of HBC's natural history, including age of onset, increased incidence of bilaterality, integ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01811240
更新日期:1988-12-01 00:00:00
abstract::Lapatinib and capecitabine combination therapy is effective in trastuzumab-resistant human epidermal growth factor receptor 2 (HER2)-positive breast cancer. We investigated the biomarkers from serum of patients receiving lapatinib and capecitabine Patients received lapatinib 1,250 mg once daily and capecitabine 2,000 ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,多中心研究
doi:10.1007/s10549-010-1200-9
更新日期:2011-01-01 00:00:00
abstract::To evaluate the clinical value of MRI guided preoperative wire localization of clinically and mammographically occult lesions of the breast. In a multicenter study, we evaluated 132 preoperative MRI guided localizations. Median lesion size evaluated by MRI prior to wire localization was 9mm. MRI guided localization wa...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1023/a:1019668210290
更新日期:2002-09-01 00:00:00
abstract:BACKGROUND:Videotaped education materials to teach breast self-examination (BSE) are used worldwide. However, evaluation of videotaped BSE instructions is lacking. METHODS:Premenopausal women (mean age 33.4+/-11.2 years) without history of breast cancer were approached to participate in this experimental study and ran...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1023/a:1015264103561
更新日期:2002-05-01 00:00:00
abstract::Inflammatory breast cancer (IBC) is a rare and aggressive disease. Previous studies have shown that among patients with stage III breast cancer, IBC is associated with a worse prognosis than noninflammatory breast cancer (non-IBC). Whether this difference holds true among patients with stage IV breast cancer has not b...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-015-3436-x
更新日期:2015-07-01 00:00:00
abstract::The purpose of the study was to compare breast-conserving therapy (BCT) and mastectomy (M) in BRCA1/2 mutation carriers. Women with invasive breast cancer and a pathogenic mutation in BRCA1 or BRCA2 were included in the study (n = 162). Patients treated with BCT (n = 45) were compared with patients treated with M (n =...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-014-3115-3
更新日期:2014-10-01 00:00:00
abstract::Expression of progesterone receptor (PR) mRNA is indicative of a normal gene regulation mechanism mediated by functional estrogen receptor (ER). A simple assay which can reliably detect and quantitate PR mRNA levels in a small amount of tissue will be of value for studying functional status of ER. We have developed a ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/a:1006081127924
更新日期:1998-07-01 00:00:00
abstract:AIMS:Anthracyclines-taxanes containing regimens are widely used for breast cancer treatment both in neoadjuvant-adjuvant setting and in metastatic disease. Recently high-dose chemotherapy (HDC) with autologous stem cell support has been introduced as adjuvant treatment for high-risk primary breast cancer and for select...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1023/a:1006462023110
更新日期:2000-06-01 00:00:00
abstract::The concept of cancer cells being hierarchically organized and arising from their own progenitor stem cells will have important implications on cancer therapy. If this hypothesis were to be true then the paucity of estrogen receptors in stem cells as well as their inherent drug resistance mechanisms pose a challenge t...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-009-0619-3
更新日期:2010-08-01 00:00:00
abstract:OBJECTIVE:Previous meta-analyses have examined the prognosis of women with pregnancy-associated breast cancer (PABC) as well as pregnancy that follows breast cancer diagnosis. Since then, many additional studies have been performed. We conducted an updated meta-analysis to examine the prognosis for women who become pre...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,meta分析
doi:10.1007/s10549-016-3989-3
更新日期:2016-11-01 00:00:00
abstract:PURPOSE:HER2 gene is a member of the epidermal growth factor receptor (EGFR) family. Across different malignancies, aberrations of HER2 gene commonly correspond to gain-of-function alterations leading to increased receptor signaling. METHODS:We have reviewed the literature currently available on HER2 mutations in huma...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,评审
doi:10.1007/s10549-017-4419-x
更新日期:2017-11-01 00:00:00
abstract:PURPOSE:Psychological resilience is an important ability for women with breast cancer to cope effectively with depression and anxiety. However, the demands of long-term hospital-based psychological rehabilitation interventions are not met in mainland China, where shorter hospital stays and longer home rehabilitation ar...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-019-05368-9
更新日期:2019-11-01 00:00:00
abstract::The mutation pattern of breast cancer molecular subtypes is incompletely understood. The purpose of this study was to identify mutations in genes that may be targeted with currently available investigational drugs in the three major breast cancer subtypes (ER+/HER2-, HER2+, and Triple Negative). We extracted DNA from ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-012-2035-3
更新日期:2012-07-01 00:00:00
abstract::A dose-response relationship has been suggested for medroxyprogesterone acetate in the treatment of advanced breast cancer. To determine the tolerability and efficacy of increasing doses of megestrol acetate in the treatment of metastatic breast cancer, we conducted a phase I/II study among 57 patients. Three patients...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章
doi:10.1007/BF01990033
更新日期:1991-08-01 00:00:00
abstract::Proliferation of both mouse and human breast cancer cells was inhibited by chlorpheniramine (CPA) in a dose-response manner. At the beginning of the exponential phase of growth (two days after seeding), 250 microM CPA was able to reduce cell proliferation by 75% (in Ehrlich cell cultures) and 30% (in MCF-7 cultures). ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF00668208
更新日期:1995-08-01 00:00:00