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https://www.readbyqxmd.com/read/29232628/epithelial-plasticity-in-the-mammary-gland
#1
REVIEW
Lindsey Seldin, Armelle Le Guelte, Ian G Macara
Many epithelial tissues rely on multipotent stem cells for the proper development and maintenance of their diverse cell lineages. Nevertheless, the identification of multipotent stem cell populations within the mammary gland has been a point of contention over the past decade. In this review, we provide a critical overview of the various lineage-tracing studies performed to address this issue and conclude that although multipotent stem cells exist in the embryonic mammary placode, the postnatal mammary gland instead contains distinct unipotent progenitor populations that contribute to stage-specific development and homeostasis...
December 9, 2017: Current Opinion in Cell Biology
https://www.readbyqxmd.com/read/29232581/homo-and-heteroleptic-pt-ii-complexes-of-onn-donor-hydrazone-and-4-picoline-a-synthetic-structural-and-detailed-mechanistic-anticancer-investigation
#2
Faiz-Ur Rahman, Muhammad Zeeshan Bhatti, Amjad Ali, Hong-Quan Duong, Yao Zhang, Bo Yang, Satish Koppireddi, Yuejian Lin, Hui Wang, Zhan-Ting Li, Dan-Wei Zhang
Two series of homoleptic Pt(II)(hydrazone)Cl (C1a-C5a) and heteroleptic Pt(II)(hydrazone)(4-picoline). BF4 (C1b-C5b) complexes were prepared and characterized by 1H, 13C, 19F NMR and HR ESI-MS. Structure of C2b was confirmed by single crystal X-ray analysis. These complexes were studied for their in vitro anticancer activities in human multiple cancer cells including breast (MCF-7), liver (HepG2), lung (H460), colon (HCT116) and cervical (Hela) cancers. C1a-C5a and C1b-C5b showed considerable anticancer effect...
November 26, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29232580/design-and-synthesis-of-novel-quinacrine-1-3-thiazinan-4-one-hybrids-for-their-anti-breast-cancer-activity
#3
V Raja Solomon, Sheetal Pundir, Hoang-Thanh Le, Hoyun Lee
In an attempt to develop effective and safe anticancer agents, we designed, synthesized and examined 23 novel quinacrine (QC) derivatives by combining the 9-aminoacridine scaffold and the [1,3]thiazinan-4-ones group. Most of these hybrids showed strong anticancer activities, among which 3-(3-(6-chloro-2-methoxyacridin-9-ylamino)propyl)-2-(thiophen-2-yl)-1,3-thiazinan-4-one (25; VR151) effectively killed many different cancer cell types, including eight breast cancer cell lines with different genetic background, two prostate cancer and two lung cancer cell lines...
December 9, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29232568/prior-systemic-treatment-increased-the-incidence-of-somatic-mutations-in-metastatic-breast-cancer
#4
Takeo Fujii, Naoko Matsuda, Miho Kono, Kenichi Harano, Huiqin Chen, Rajyalakshmi Luthra, Sinchita Roy-Chowdhuri, Aysegul A Sahin, Chetna Wathoo, Aron Y Joon, Debu Tripathy, Funda Meric-Bernstam, Naoto T Ueno
BACKGROUND: Understanding the biology of breast cancer is important for guiding treatment strategies and revealing resistance mechanisms. Our objectives were to investigate the relationship between previous systemic therapy exposure and mutational spectrum in metastatic breast cancer and to identify clinicopathological factors associated with identified frequent somatic mutations. METHODS: Archival tissues of patients with metastatic breast cancer were subjected to hotspot molecular testing by next-generation sequencing...
December 9, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29232554/genomic-aberrations-that-activate-d-type-cyclins-are-associated-with-enhanced-sensitivity-to-the-cdk4-and-cdk6-inhibitor-abemaciclib
#5
Xueqian Gong, Lacey M Litchfield, Yue Webster, Li-Chun Chio, Swee Seong Wong, Trent R Stewart, Michele Dowless, Jack Dempsey, Yi Zeng, Raquel Torres, Karsten Boehnke, Cecilia Mur, Carlos Marugán, Carmen Baquero, Chunping Yu, Steven M Bray, Isabella H Wulur, Chen Bi, Shaoyou Chu, Hui-Rong Qian, Philip W Iversen, Farhana F Merzoug, Xiang S Ye, Christoph Reinhard, Alfonso De Dios, Jian Du, Charles W Caldwell, María José Lallena, Richard P Beckmann, Sean G Buchanan
Most cancers preserve functional retinoblastoma (Rb) and may, therefore, respond to inhibition of D-cyclin-dependent Rb kinases, CDK4 and CDK6. To date, CDK4/6 inhibitors have shown promising clinical activity in breast cancer and lymphomas, but it is not clear which additional Rb-positive cancers might benefit from these agents. No systematic survey to compare relative sensitivities across tumor types and define molecular determinants of response has been described. We report a subset of cancers highly sensitive to CDK4/6 inhibition and characterized by various genomic aberrations known to elevate D-cyclin levels and describe a recurrent CCND1 3'UTR mutation associated with increased expression in endometrial cancer...
December 11, 2017: Cancer Cell
https://www.readbyqxmd.com/read/29232552/therapeutic-antibody-targeting-tumor-and-osteoblastic-niche-derived-jagged1-sensitizes-bone-metastasis-to-chemotherapy
#6
Hanqiu Zheng, Yangjin Bae, Sabine Kasimir-Bauer, Rebecca Tang, Jin Chen, Guangwen Ren, Min Yuan, Mark Esposito, Wenyang Li, Yong Wei, Minhong Shen, Lanjing Zhang, Nikolai Tupitsyn, Klaus Pantel, Chadwick King, Jan Sun, Jodi Moriguchi, Helen Toni Jun, Angela Coxon, Brendan Lee, Yibin Kang
Bone metastasis is a major health threat to breast cancer patients. Tumor-derived Jagged1 represents a central node in mediating tumor-stromal interactions that promote osteolytic bone metastasis. Here, we report the development of a highly effective fully human monoclonal antibody against Jagged1 (clone 15D11). In addition to its inhibitory effect on bone metastasis of Jagged1-expressing tumor cells, 15D11 dramatically sensitizes bone metastasis to chemotherapy, which induces Jagged1 expression in osteoblasts to provide a survival niche for cancer cells...
December 11, 2017: Cancer Cell
https://www.readbyqxmd.com/read/29232539/how-to-identify-and-manage-cognitive-dysfunction-after-breast-cancer-treatment
#7
Marie Lange, Florence Joly
Attention and memory dysfunction is a common complaint among patients with breast cancer that can be reported during and up to several years after treatment. It can negatively affect patients' quality of life and their ability to work. This phenomenon has mainly been studied in patients with breast cancer who are treated with adjuvant chemotherapy. Women describe concentration problems and difficulties with word finding, multitasking, or remembering new information, as well as more effort and time needed to accomplish these tasks...
December 2017: Journal of Oncology Practice
https://www.readbyqxmd.com/read/29232487/relation-of-social-constraints-on-disclosure-to-adjustment-among-chinese-american-cancer-survivors-a-multi-processes-approach
#8
Celia C Y Wong, Krystal Warmoth, Shelby Ivy, Bernice Cheung, Qian Lu
PURPOSE: The present study examines the association between social constraints and depressive symptoms among Chinese American breast cancer survivors, and the mechanism underling this association. A multi-processes model is tested to examine the mediating roles of ambivalence over emotional expression (AEE), avoidance, intrusive thoughts, and social support in the association between social constraints and depressive symptoms among Chinese American breast cancer survivors. METHODS: Ninety-six Chinese American breast cancer survivors were recruited from Chinese community organizations...
December 12, 2017: Psycho-oncology
https://www.readbyqxmd.com/read/29232439/body-mass-index-and-breast-cancer-survival-a-mendelian-randomization-analysis
#9
Qi Guo, Stephen Burgess, Constance Turman, Manjeet K Bolla, Qin Wang, Michael Lush, Jean Abraham, Kristiina Aittomäki, Irene L Andrulis, Carmel Apicella, Volker Arndt, Myrto Barrdahl, Javier Benitez, Christine D Berg, Carl Blomqvist, Stig E Bojesen, Bernardo Bonanni, Judith S Brand, Hermann Brenner, Annegien Broeks, Barbara Burwinkel, Carlos Caldas, Daniele Campa, Federico Canzian, Jenny Chang-Claude, Stephen J Chanock, Suet-Feung Chin, Fergus J Couch, Angela Cox, Simon S Cross, Cezary Cybulski, Kamila Czene, Hatef Darabi, Peter Devilee, W Ryan Diver, Alison M Dunning, Helena M Earl, Diana M Eccles, Arif B Ekici, Mikael Eriksson, D Gareth Evans, Peter A Fasching, Jonine Figueroa, Dieter Flesch-Janys, Henrik Flyger, Susan M Gapstur, Mia M Gaudet, Graham G Giles, Gord Glendon, Mervi Grip, Jacek Gronwald, Lothar Haeberle, Christopher A Haiman, Per Hall, Ute Hamann, Susan Hankinson, Jaana M Hartikainen, Alexander Hein, Louise Hiller, Frans B Hogervorst, Bernd Holleczek, Maartje J Hooning, Robert N Hoover, Keith Humphreys, David J Hunter, Anika Hüsing, Anna Jakubowska, Arja Jukkola-Vuorinen, Rudolf Kaaks, Maria Kabisch, Vesa Kataja, Julia A Knight, Linetta B Koppert, Veli-Matti Kosma, Vessela N Kristensen, Diether Lambrechts, Loic Le Marchand, Jingmei Li, Annika Lindblom, Sara Lindström, Jolanta Lissowska, Jan Lubinski, Mitchell J Machiela, Arto Mannermaa, Siranoush Manoukian, Sara Margolin, Federik Marme, John W M Martens, Catriona McLean, Primitiva Menéndez, Roger L Milne, Anna Marie Mulligan, Taru A Muranen, Heli Nevanlinna, Patrick Neven, Sune F Nielsen, Børge G Nordestgaard, Janet E Olson, Jose I A Perez, Paolo Peterlongo, Kelly-Anne Phillips, Christopher J Poole, Katri Pylkäs, Paolo Radice, Nazneen Rahman, Thomas Rüdiger, Anja Rudolph, Elinor J Sawyer, Fredrick Schumacher, Petra Seibold, Caroline Seynaeve, Mitul Shah, Ann Smeets, Melissa C Southey, Rob A E M Tollenaar, Ian Tomlinson, Helen Tsimiklis, Hans-Ulrich Ulmer, Celine Vachon, Ans M W van den Ouweland, Laura J Van't Veer, Hans Wildiers, Walter Willett, Robert Winqvist, M Pilar Zamora, Georgia Chenevix-Trench, Thilo Dörk, Douglas F Easton, Montserrat García-Closas, Peter Kraft, John L Hopper, Wei Zheng, Marjanka K Schmidt, Paul D P Pharoah
Background: There is increasing evidence that elevated body mass index (BMI) is associated with reduced survival for women with breast cancer. However, the underlying reasons remain unclear. We conducted a Mendelian randomization analysis to investigate a possible causal role of BMI in survival from breast cancer. Methods: We used individual-level data from six large breast cancer case-cohorts including a total of 36 210 individuals (2475 events) of European ancestry...
December 1, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29232309/a-bispecific-antibody-based-on-pertuzumab-fab-has-potent-antitumor-activity
#10
Wentong Deng, Jiayu Liu, Haitao Pan, Li Li, Changhua Zhou, Xiaojuan Wang, Rui Shu, Bin Dong, Donglin Cao, Qing Li, Zhong Wang
Human epidermal growth factor receptor 2 (HER2) is frequently overexpressed and activated in metastatic breast cancers. Monoclonal antibodies targeting Her2, such as trastuzumab and pertuzumab, have become important targeted therapies for patients with HER2-positive breast cancer. Both trastuzumab and pertuzumab can reduce Her2 positive tumor burden by inhibiting Her2 signaling and inducing ADCC activities (antibody dependent cell-mediated cytotoxicity). In this study, we have generated a bispecific antibody, Her2(Per)-S-Fab, by linking the pertuzumab Fab to an anti-CD16 single domain antibody...
January 2018: Journal of Immunotherapy
https://www.readbyqxmd.com/read/29231966/the-role-of-postmastectomy-radiotherapy-in-patients-with-stage-ii-breast-cancer
#11
Nisha Ohri, Bruce G Haffty, Thomas A Buchholz
No abstract text is available yet for this article.
December 12, 2017: Cancer
https://www.readbyqxmd.com/read/29231918/-systemic-treatment-of-early-breast-cancer-current-state-of-knowledge-after-the-conference-st-gallen-2017
#12
REVIEW
Tomasz Sarosiek
Breast cancer is the most commonly diagnosed malignancy in women around the globe. It is also the world's first cause of female deaths from cancer. With the introduction of screening programs in most developed countries, more and more cases of this cancer are diagnosed at local or localized stages, enabling radical treatment to be successful. At the same time, systemic treatment of early breast cancer is one of the most complex issues in clinical oncology. Because of the many prognostic factors that need to be taken into account when considering eligibility for treatment such as age, reproductive status (before or after menopause), type of cancer and severity of the disease, it is impossible to establish clear standards of conduct for many clinical situations...
November 23, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29231814/a-homozygous-fancm-mutation-underlies-a-familial-case-of-non-syndromic-primary-ovarian-insufficiency
#13
Baptiste Fouquet, Patrycja Pawlikowska, Sandrine Caburet, Celine Guigon, Marika Mäkinen, Laura Tanner, Marja Hietala, Kaja Urbanska, Laura Bellutti, Bérangère Legois, Bettina Bessieres, Alain Gougeon, Alexandra Benachi, Gabriel Livera, Filippo Rosselli, Reiner A Veitia, Micheline Misrahi
Primary Ovarian Insufficiency (POI) affects ~1% of women under forty. Exome sequencing of two Finnish sisters with non-syndromic POI revealed a homozygous mutation in FANCM, leading to a truncated protein (p.Gln1701*). FANCM is a DNA-damage response gene whose heterozygous mutations predispose to breast cancer. Compared to the mother's cells, the patients' lymphocytes displayed higher levels of basal and mitomycin C (MMC)-induced chromosomal abnormalities. Their lymphoblasts were hypersensitive to MMC and MMC-induced monoubiquitination of FANCD2 was impaired...
December 12, 2017: ELife
https://www.readbyqxmd.com/read/29231708/atomically-precise-au25-sg-18-nanoclusters-rapid-single-step-synthesis-and-application-in-photothermal-therapy
#14
Sai Krishna Katla, Jie Zhang, Edison Castro, Ricardo Andres Bernal, XiuJun James Li
Remarkable recent advances on Au25(SR)18 nanoclusters have led to significant applications in catalysis, sensing and magnetism. However, the existing synthetic routes are complicated, particularly for the water-soluble Au25(SR)18 nanoclusters. Here we report a single-step concentration and temperature controlled method for rapid synthesis of the Au25(SR)18 nanoclusters in as little as 2 h without the need for low temperature reaction or even stirring. A systematic time-based investigation was carried out to study the effects of volume, concentration and temperature on the synthesis of these nanoclusters...
December 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29231613/-effects-of-electroacupuncture-on-expression-of-%C3%AE-opioid-receptor-in-nucleus-ceruleus-in-rats-with-bone-cancer-pain-morphine-tolerance
#15
Taofang Fu, Lingling Wang, Junying Du, Feng Chen, Junfan Fang, Yi Liang, Jianqiao Fang
OBJECTIVE: To observe the effects of electroacupuncture (EA) on pain behavior in rats with bone cancer pain and morphine tolerance, and to explore partial action mechanism. METHODS: Forty-two SD healthy female rats were randomly divided into a sham operation group (7 rats), a bone cancer pain group (8 rats), a morphine tolerance group (9 rats), an EA group (9 rats) and a sham EA group (9 rats). The rats in the sham operation group were treated with injection of phosphate buffer saline at medullary cavity of left-side tibia, and the rats in the remaining groups were injected with MRMT-1 breast cancer cells...
May 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29231257/halofuginone-induced-autophagy-suppresses-the-migration-and-invasion-of-mcf-7-cells-via-regulation-of-stmn1-and-p53
#16
Xiaojing Xia, Lei Wang, Xiaojian Zhang, Shan Wang, Lianchen Lei, Likun Cheng, Yanzhao Xu, Yawei Sun, Bolin Hang, GaiPing Zhang, YueYu Bai, JianHe Hu
Traditional Chinese medicines have been recognized as especially promising anticancer agents in modern anticancer research. Halofuginone (HF), an analog of quinazolinone alkaloid extracted from Dichroa febrifuga, is widely used in traditional medicine. However, whether HF inhibits the growth of breast cancer cells and/or reduces the migration and invasion of MCF-7 human breast cancer cells, as well as the underlying mechanisms in vitro, remains unclear. In this study, we report that an HF extract inhibits the growth of MCF-7 cells and reduces their migration and invasion, an important feature of potential anticancer agents...
December 12, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29231244/sirt7-depletion-inhibits-cell-proliferation-migration-and-increases-drug-sensitivity-by-activating-p38mapk-in-breast-cancer-cells
#17
Kun-Lin Chen, Lian Li, Fang-Xiao Yang, Cheng-Min Li, Yi-Ru Wang, Gen-Lin Wang
SIRT7 is a member of the sirtuin family of proteins that are known to be associated with tumor development. However, the functional roles and molecular mechanisms underlying the function of SIRT7 in breast cancer cell survival and tumor development remain unclear. Recent studies demonstrated that SIRT7 is upregulated in breast cancer cells and tissues. In the present study, we systematically explored the roles of SIRT7 in the growth of breast cancer cells and tumors both in vitro and in vivo. Our results showed that SIRT7 plays a major role in facilitating cell survival by promoting cell proliferation and inhibiting apoptosis...
December 12, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29231194/breast-cancer-in-2017-spurring-science-marking-progress-and-influencing-history
#18
Jose Perez-Garcia, Javier Cortes
No abstract text is available yet for this article.
December 12, 2017: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/29231164/lapatinib-plus-capecitabine-in-patients-with-her2-positive-metastatic-breast-cancer-a%C3%A2-systematic-review%C3%A2
#19
Rebecca Madden, Sam Kosari, Gregory M Peterson, Nasser Bagheri, Jackson Thomas
OBJECTIVE: Human epidermal growth factor receptor 2 (HER2)-positive breast cancer, which accounts for 20 - 25% of cases of breast cancers, is highly aggressive. Due to cardiotoxicity and increasing resistance associated with trastuzumab, the first-line treatment, there is a need for effective second-line therapies in treating HER2-positive breast cancer. In this context, there has been increasing interest in the combination of lapatinib plus capecitabine. The aim of this systematic review was to assess the efficacy of lapatinib plus capecitabine for HER2-positive breast cancer after progression with trastuzumab therapy, in comparison with capecitabine monotherapy and other agents such as vinorelbine and trastuzumab emtansine...
December 12, 2017: International Journal of Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29231134/plant-made-antibodies-properties-and-therapeutic-applications
#20
Tatianamsu Ru V Komarova, Ekaterina V Sheshukova, Yuri L Dorokhov
A cost-effective plant platform for therapeutic monoclonal antibody production is both flexible and scalable. In addition, plant-made antibodies (PMAbs) could be advantageous compared to those produced in animal cells due to the absence of a risk of contamination from nucleic acids or proteins of animal origin. In this review, the various platforms of PMAbs production are described, and the widely used transient expression system based on Agrobacterium-mediated delivery of genetic material into plant cells is discussed in detail...
December 11, 2017: Current Medicinal Chemistry
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