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https://www.readbyqxmd.com/read/29035756/lymph-node-wire-localization-post-chemotherapy-towards-improving-the-false-negative-sentinel-lymph-node-biopsy-rate-in-breast-cancer-patients
#1
Brittany Z Dashevsky, Ashley Altman, Hiroyuki Abe, Nora Jaskowiak, Jean Bao, David V Schacht, Deepa Sheth, Kirti Kulkarni
PURPOSE: To evaluate whether the disease status of the pre-neoadjuvant chemotherapy (NAC) core biopsied lymph node (preNACBxLN) in patients with node positive breast cancer corresponds to nodal status of all surgically retrieved lymph nodes (LNs) post-NAC and whether wire localization of this LN is feasible. MATERIALS AND METHODS: HIPPA compliant IRB approved retrospective study including breast cancer patients (a.) with preNACBxLN confirmed metastases, (b.) who received NAC, and (c...
October 7, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/29035360/ezh2-promotes-degradation-of-stalled-replication-forks-by-recruiting-mus81-through-histone-h3-trimethylation
#2
Beatrice Rondinelli, Ewa Gogola, Hatice Yücel, Alexandra A Duarte, Marieke van de Ven, Roxanne van der Sluijs, Panagiotis A Konstantinopoulos, Jos Jonkers, Raphaël Ceccaldi, Sven Rottenberg, Alan D D'Andrea
The emergence of resistance to poly-ADP-ribose polymerase inhibitors (PARPi) poses a threat to the treatment of BRCA1 and BRCA2 (BRCA1/2)-deficient tumours. Stabilization of stalled DNA replication forks is a recently identified PARPi-resistance mechanism that promotes genomic stability in BRCA1/2-deficient cancers. Dissecting the molecular pathways controlling genomic stability at stalled forks is critical. Here we show that EZH2 localizes at stalled forks where it methylates Lys27 on histone 3 (H3K27me3), mediating recruitment of the MUS81 nuclease...
October 16, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/29033675/considering-the-relationship-between-quantitative-parameters-and-prognostic-factors-in-breast-cancer-can-mean-standardized-uptake-value-be-an-alternative-to-maximum-standardized-uptake-value
#3
Reyhan Köroğlu, İsmail Köksal, Fikri Selçuk Şimşek, Fatma Gezer, Ersoy Kekilli, Bülent Ünal
It was aimed to investigate the correlation between maximum standardized uptake value (SUVmax), mean standardized uptake value (SUVmean), and retention index (RI), which represents the quantitative evaluation of the uptake of (18)F-fluoro-2-deoxy-D-glucose ((18)F-FDG) used in positron emission tomography (PET) and clinicopathologic as well as biologic prognostic factors. Forty-one women with breast cancer who were histopathologically diagnosed were included in this study. Neoadjuvant chemotherapy was applied to all patients before PET/computed tomography (CT)...
October 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29033147/apparent-diffusion-coefficient-value-to-evaluate-tumor-response-after-neoadjuvant-chemotherapy-in-patients-with-breast-cancer
#4
Yazmín Aseret Ramírez-Galván, Servando Cardona-Huerta, Guillermo Elizondo-Riojas, Neri Alejandro Álvarez-Villalobos
RATIONALE AND OBJECTIVES: This study explored tumor behavior in patients with breast cancer during neoadjuvant chemotherapy (NAC) by sequential measurements of tumor apparent diffusion coefficient (ADC) after each chemotherapy cycle. The aim was to determine if the tumor ADC is useful to differentiate complete pathological response (cPR) from partial pathological response (pPR) during NAC. MATERIALS AND METHODS: A total of 16 cases (in 14 patients) with diagnosis of breast cancer eligible to receive NAC were included...
October 12, 2017: Academic Radiology
https://www.readbyqxmd.com/read/29032291/impact-of-an-osteoporosis-specialized-unit-on-bone-health-in-breast-cancer-survivals-treated-with-aromatase-inhibitors
#5
Purificación Martínez, Elena Galve, Virginia Arrazubi, M Ángeles Sala, Seila Fernández, Clara E Pérez, Juan F Arango, Iñaki Torre
OBJECTIVE: Considering the increased fracture risk in early breast cancer patients treated with aromatase inhibitors (AI), we assessed the impact of a preventive intervention conducted by a specialized osteoporosis unit on bone health at AI treatment start. MATERIAL AND METHODS: Retrospective cohort of postmenopausal women who started treatment with AI after breast cancer surgical/chemotherapy treatment and were referred to the osteoporosis unit for a comprehensive assessment of bone health...
October 11, 2017: Reumatología Clinica
https://www.readbyqxmd.com/read/29031923/deae-dextran-coated-paclitaxel-nanoparticles-act-as-multifunctional-nano-system-for-intranuclear-delivery-to-triple-negative-breast-cancer-through-vegf-and-notch1-inhibition
#6
Anita K Bakrania, Bhavesh C Variya, Lalji V Rathod, Snehal S Patel
Triple negative breast cancer revolution has identified a plethora of therapeutic targets making it apparent that a single target for its treatment could be rare hence creating an urge to develop robust technologies for combination drug therapy. Paclitaxel, hailed as the most significant advancement in chemotherapy faces several underpinnings due to its low solubility and permeability. Advancing research has demonstrated the role of interferons in cancer. DEAE-Dextran, an emerging molecule with evidence of interferon induction was utilized in the present study to develop a nanoformulation in conjugation with paclitaxel to target multiple therapeutic pathways, with diminution of paclitaxel adverse effects and develop a specific targeted nano system...
October 11, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/29030786/routine-treatment-and-outcome-of-breast-cancer-in-younger-versus-elderly-patients-results-from-the-senora-project-of-the-prospective-german-tmk-cohort-study
#7
Thomas Fietz, Mark-Oliver Zahn, Andreas Köhler, Erik Engel, Melanie Frank, Lisa Kruggel, Martina Jänicke, Norbert Marschner
PURPOSE: There is an ongoing discussion about 'undertreatment' of breast cancer in elderly patients. Due to low accrual into clinical trials, level 1 evidence is scarce. We report prospective data of elderly patients with breast cancer treated by medical oncologists in Germany. METHODS: The SENORA project within the prospective cohort study TMK (Tumour Registry Breast Cancer) was conducted in 82 centres from 2007-2015. Among 2316 patients, half were enrolled with curative and half with palliative treatment intention...
October 13, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29030460/hmg-coa-reductase-inhibition-delays-dna-repair-and-promotes-senescence-after-tumor-irradiation
#8
Elena V Efimova, Natalia Ricco, Edwardine Labay, Helena J Mauceri, Amy C Flor, Aishwarya Ramamurthy, Harold G Sutton, Ralph R Weichselbaum, Stephen J Kron
Despite significant advances in combinations of radiotherapy and chemotherapy, altered fractionation schedules and image-guided radiotherapy, many cancer patients fail to benefit from radiation. A prevailing hypothesis is that targeting repair of DNA double strand breaks (DSBs) can enhance radiation effects in the tumor and overcome therapeutic resistance without incurring off-target toxicities. Unrepaired DSBs can block cancer cell proliferation, promote cancer cell death and induce cellular senescence. Given the slow progress to date translating novel DSB repair inhibitors as radiosensitizers, we have explored drug repurposing, a proven route to improving speed, costs and success rates of drug development...
October 13, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29030256/ficus-virens-proanthocyanidins-induced-apoptosis-in-breast-cancer-cells-concomitantly-ameliorated-5-fluorouracil-induced-intestinal-mucositis-in-rats
#9
Xiao-Xin Chen, Kar Ho Lam, Qing-Xi Chen, George Pak-Heng Leung, Sydney Chi Wai Tang, Stephen Cho-Wing Sze, Jian-Bo Xiao, Feng Feng, Ying Wang, Kalin Yan-Bo Zhang, Zhang-Jin Zhang
5-Fluorouracil (5-FU) is a commonly used chemotherapeutic agent for breast cancer. However, its use often leads to drug resistance and mucositis. This study aimed to investigate whether proanthocyanidins from Ficus virens possessed anti-breast cancer and anti-mucositis activities. The results showed that the cytotoxic effects of the proanthocyanidins against MDA-MB-231 and MCF-7 breast cancer cells were in the order of stem barks proanthocyanidins (SPAs) > leaves proanthocyanidins > fruits proanthocyanidins...
October 10, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29029489/similar-response-profile-to-neoadjuvant-chemotherapy-but-different-survival-in-inflammatory-versus-locally-advanced-breast-cancers
#10
Audrey Monneur, Anthony Goncalves, Marine Gilabert, Pascal Finetti, Carole Tarpin, Christophe Zemmour, Jean-Marc Extra, Agnès Tallet, Eric Lambaudie, Jocelyne Jacquemier, Gilles Houvenaeghel, Jean-Marie Boher, Patrice Viens, François Bertucci
Inflammatory breast cancer (IBC) is a very aggressive form of breast cancer, as compared to locally advanced breast cancer (LABC). Neoadjuvant chemotherapy followed by surgery is the standard treatment in both cases. Whether IBC is less chemosensitive than LABC remains unclear. We retrospectively compared the rate of pathological complete response (pCR) to neoadjuvant chemotherapy in IBC and LABC. METHODS: Patients with IBC or LABC treated with neoadjuvant anthracycline-based chemotherapy followed by surgery were selected from our institutional database...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29028642/-lost-to-follow-up-among-adult-cancer-survivors
#11
Amitoj Gill, Rohit Gosain, Shruti Bhandari, Rahul Gosain, Gurkirat Gill, Joseph Abraham, Kenneth Miller
BACKGROUND: Follow-up cancer care is important for patients who have received IV chemotherapy but some patients discontinue their care and are lost to follow-up (LFU) at the cancer center where they were treated. The purpose of this study was to determine what proportion of cancer survivors are LFU at 5 years after treatment, the timing of LFU, and the characteristics of those who do not continue survivorship care. METHODS: Adult patients with cancer who were treated with chemotherapy at a large community teaching hospital in 2006 and 2007 were identified and linked with State tumor registry data...
October 12, 2017: American Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29028589/tanshinoneiia-enhances-the-chemosensitivity-of-breast-cancer-cells-to-doxorubicin-through-down-regulating-the-expression-of-mdr-related-abc-transporters
#12
Kun Li, Hong Lai
As the first-line drug for breast cancer chemotherapy, doxorubicin (Dox) has strong cardiotoxicity. Meanwhile, prolonged Dox treatment of patients with breast cancer may result in resistance of breast cancer cells to Dox and an increased number of Dox-resistant breast cancer stem cells (BCSCs), thereby easily leading to breast cancer relapse. TanshinoneIIA (Tan IIA) has anti-tumor activity in addition to its cardiovascular protective effect. By preparing Dox resistant human breast cancer MCF-7 cells, here, we wanted to assess a new use of Tan IIA in enhancing the chemosensitivity of breast cancer cells to Dox and investigated its possible mechanisms...
October 10, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29028085/nestin-and-cd146-expression-in-metaplastic-breast-cancer-stem-cell-therapy-in-need-lessons-reported-from-a-male-patient
#13
A Tampakis, E C Tampaki, D Trafalis, A Nonni, K Kontzoglou, E Patsouris, M Kontos, G Kouraklis
OBJECTIVE: Metaplastic breast carcinomas represent a rare subtype of breast cancer exhibiting aggressive clinical features. They appear as highly chemoresistant tumors, therefore showing poor outcome and high rates of local recurrence or distant metastasis. CASE REPORT: A 37-year-old greek man was referred to our hospital for evaluation of a locally advanced, ulcerated, fixed, irregular and hard in consistency mass covering his left breast and chest wall. Further work out with CT and biopsy of the tumor revealed a triple negative metaplastic breast cancer classified as cT4cN3cM1...
September 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29027954/marine-sponge-natural-products-with-anticancer-potential-an-updated-review
#14
REVIEW
Cinzia Calcabrini, Elena Catanzaro, Anupam Bishayee, Eleonora Turrini, Carmela Fimognari
Despite the huge investment into research and the significant effort and advances made in the search for new anticancer drugs in recent decades, cancer cure and treatment continue to be a formidable challenge. Many sources, including plants, animals, and minerals, have been explored in the oncological field because of the possibility of identifying novel molecular therapeutics. Marine sponges are a prolific source of secondary metabolites, a number of which showed intriguing tumor chemopreventive and chemotherapeutic properties...
October 13, 2017: Marine Drugs
https://www.readbyqxmd.com/read/29027523/-role-of-tenascin-%C3%B0-in-triple-negative-breast-cancer
#15
O P Popova, S Yu Bogomazova, A A Ivanov
AIM: to establish a relationship between the main markers tumor stem cells (TSCs), CD44, and CD24, the level of tenascin C production, and chemoresistance in triple-negative breast cancer (BC). SUBJECTS AND METHODS: Thirty biopsy specimens from triple-negative BC patients who had conventionally received preoperative chemotherapy followed by surgery were selected in the investigation. All the selected patients were conventionally assigned to neoadjuvant polychemotherapy (PCT) with paclitaxel and carboplatin...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/29027290/pertuzumab-and-trastuzumab-infusion-related-cytokine-release-syndrome-in-a-chemotherapy-naive-patient-with-metastatic-breast-cancer
#16
Adonice Khoury, Vikas Parihar, Lillie O'steen, Kartikeya Cherabuddi
Pertuzumab is a monoclonal antibody that targets and down regulates HER-2/neu expression in ductal breast tumors. Other HER-2/neu monoclonal antibodies, particularly trastuzumab, have been implicated to induce infusion related reactions such as cytokine release syndrome (CRS). Here, we report a case of pertuzumab associated CRS prior to infusion of trastuzumab which warranted hospitalization for symptom management.
October 13, 2017: Breast Journal
https://www.readbyqxmd.com/read/29027049/acute-phase-dynamics-of-circulating-tumor-cells-after-paclitaxel-and-doxorubicin-chemotherapy-in-breast-cancer-mouse-models
#17
Yayoi Adachi, Mayumi Yoshimura, Keiko Nishida, Hisanobu Usuki, Keiko Shibata, Masaya Hattori, Naoto Kondo, Yasushi Yatabe, Hiroji Iwata, Toyone Kikumori, Yasuhiro Kodera, Hayao Nakanishi
PURPOSE: Circulating tumor cells (CTCs) can provide a potentially minimal invasive source for monitoring chemotherapeutic effects. However, detailed in vivo dynamics of CTC after chemotherapy remain largely unknown. METHODS: We monitored CTC number and morphology early after chemotherapy using a newly developed cytology-based CTC detection device and triple-negative breast cancer mouse CTC models with spontaneous lung metastatic potential. RESULTS: Paclitaxel inhibited cell growth of breast cancer cells by mainly G2/M cell cycle arrest and partly apoptosis, whereas doxorubicin inhibited cell growth mainly by apoptosis and partly G2 cell cycle arrest in vitro...
October 12, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29026415/two-cases-of-parachute-tricuspid-valve-confirmed-by-three-dimensional-echocardiography
#18
Hedieh Alimi, Afsoon Fazlinezhad
BACKGROUND: Parachute tricuspid valve is a rare congenital malformations explained in the literature. In most cases, this malformation coexists with other congenital defects. The importance of this condition depends on its functional consequences. CASE REPORT: First case was a 52-year-old female patient presented with palpitation. She had a history of paroxysmal supraventricular tachycardia. Transthoracic echocardiography revealed large secundum type atrial septal defect and all the tricuspid valve leaflets appeared to be connected to a single calcified papillary muscle in right ventricle suggestive of parachute tricuspid valve...
March 2017: ARYA Atherosclerosis
https://www.readbyqxmd.com/read/29025449/incidence-of-chemotherapy-induced-neutropenia-in-hiv-infected-and-uninfected-patients-with-breast-cancer-receiving-neoadjuvant-chemotherapy
#19
Sithembile Ngidi, Nombulelo Magula, Ben Sartorius, Pooven Govender, Thandinkosi E Madiba
BACKGROUND: Chemotherapy-induced neutropenia (CIN) can result in poor tolerance of chemotherapy, leading to dose reductions, delays in therapy schedules, morbidity and mortality. Actively identifying predisposing risk factors before treatment is of paramount importance. We hypothesised that chemotherapy is associated with a greater increase in CIN and its complications in HIV-infected patients than in those who are not infected. OBJECTIVE: To establish the incidence of CIN in HIV-infected and uninfected patients undergoing chemotherapy...
June 30, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/29024776/update-on-tumor-infiltrating-lymphocytes-tils-in-breast-cancer-including-recommendations-to-assess-tils-in-residual-disease-after-neoadjuvant-therapy-and-in-carcinoma-in-situ-a-report-of-the-international-immuno-oncology-biomarker-working-group-on-breast-cancer
#20
REVIEW
Maria Vittoria Dieci, Nina Radosevic-Robin, Susan Fineberg, Gert van den Eynden, Nils Ternes, Frederique Penault-Llorca, Giancarlo Pruneri, Timothy M D'Alfonso, Sandra Demaria, Carlos Castaneda, Joselyn Sanchez, Sunil Badve, Stefan Michiels, Veerle Bossuyt, Federico Rojo, Baljit Singh, Torsten Nielsen, Giuseppe Viale, Seong-Rim Kim, Stephen Hewitt, Stephan Wienert, Sybille Loibl, David Rimm, Fraser Symmans, Carsten Denkert, Sylvia Adams, Sherene Loi, Roberto Salgado
Morphological evaluation of tumor-infiltrating lymphocytes (TILs) in breast cancer is gaining momentum as evidence strengthens the clinical relevance of this immunological biomarker. TILs in the post-neoadjuvant residual disease setting are acquiring increasing importance as a stratifying marker in clinical trials, considering the raising interest on immunotherapeutic strategies after neoadjuvant chemotherapy. TILs in ductal carcinoma in situ, with or without invasive carcinoma, represent an emerging area of clinical breast cancer research...
October 9, 2017: Seminars in Cancer Biology
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