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Pregnancy associated breast cancer

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https://www.readbyqxmd.com/read/28746163/the-potential-contribution-of-dietary-factors-to-breast-cancer-prevention
#1
Niva Shapira
Breast cancer (BC), the leading cancer in women, is increasing in prevalence worldwide, concurrent with western metabolic epidemics, that is, obesity, metabolic syndrome, and diabetes, and shares major risk factors with these diseases. The corresponding potential for nutritional contributions toward BC prevention is reviewed and related to critical stages in the life cycle and their implications for carcinogenic and pathometabolic trajectories. BC initiation potentially involves diet-related pro-oxidative, inflammatory, and procarcinogenic processes, that interact through combined lipid/fatty acid peroxidation, estrogen metabolism, and related DNA-adduct/depurination/mutation formation...
July 25, 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28732325/epidemiology-and-pathophysiology-of-pregnancy-associated-breast-cancer-a-review
#2
REVIEW
Rossana Ruiz, Carmen Herrero, Kathrin Strasser-Weippl, Diego Touya, Jessica St Louis, Alexandra Bukowski, Paul E Goss
The interactions between pregnancy and breast cancer (BC) are complex. Overall, parity is associated with long-term protective effects against BC, however in a small group of susceptible patients, pregnancy can lead to the development of a form of BC with a particularly poor prognosis. Pregnancy-associated breast cancer (PABC) remains an under-studied but important and growing clinical problem worldwide. Several aspects of PABC, including risk factors and mechanisms involved in its occurrence and aggressiveness, are incompletely understood...
July 18, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28730256/advanced-metastatic-breast-cancer-in-pregnancy-the-imperative-of-physical-breast-examination-in-pregnancy
#3
Anca Angela Simionescu, Claudia Valentina Georgescu, Mirela Corina Ghiluşi, Sabrina Ioana Stoica, Mircea Dragoş Median
Breast cancer is the most frequent cancer diagnosed among women; its association with pregnancy is not encountered. As childbearing age is increasing, the diagnosis of breast cancer associated pregnancy tends to be more often than years ago. Here we report a case of a 37-year-old patient, gravida 7, para 7, diagnosed at 30 weeks gestation with metastatic breast cancer. The patient presented to hospital due to an altered performance status. Obstetrical evaluation was within normal range. A metastatic infiltrating breast cancer poorly differentiated (G3) with satellite skin lesions (T4b), ipsilateral axillary and supraclavicular lymph nodes (N3), lung metastasis bilateral with pleural effusion and hepatic metastasis (M1), were diagnosed...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28720108/early-pregnancy-sex-steroids-during-primiparous-pregnancies-and-maternal-breast-cancer-a-nested-case-control-study-in-the-northern-sweden-maternity-cohort
#4
Renée T Fortner, Eglé Tolockiene, Helena Schock, Husam Oda, Hans-Åke Lakso, Göran Hallmans, Rudolf Kaaks, Paolo Toniolo, Anne Zeleniuch-Jacquotte, Kjell Grankvist, Eva Lundin
BACKGROUND: Pregnancy and parity are associated with subsequent breast cancer risk. Experimental and epidemiologic data suggest a role for pregnancy sex steroid hormones. METHODS: We conducted a nested case-control study in the Northern Sweden Maternity Cohort (1975-2007). Eligible women had provided a blood sample in the first 20 weeks of gestation during a primiparous pregnancy leading to a term delivery. The current study includes 223 cases and 417 matched controls (matching factors: age at and date of blood collection)...
July 18, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28715959/preeclampsia-and-maternal-risk-of-breast-cancer-a-meta-analysis-of-cohort-studies
#5
Meizhen Sun, Yongling Fan, Yuanyuan Hou, Yanyan Fan
BACKGROUND: Pregnancy-related hypertensive disorders, including preeclampsia (PE) and pregnancy-induced hypertension (PIH), may influence the maternal risk of breast cancer. However, results of the cohort studies were inconsistent. METHODS: An updated meta-analysis of cohort studies was performed to evaluate the association between PE, PIH and maternal breast cancer incidence. Relevant studies were identified via searching of PubMed and Embase databases. A random effect model was applied to synthesize the results...
July 17, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28713995/bioinformatic-analysis-of-computational-identified-differentially-expressed-genes-in-tumor-stoma-of-pregnancy%C3%A2-associated-breast-cancer
#6
Qian Zhou, Erhu Sun, Lijun Ling, Xiaofeng Liu, Min Zhang, Hong Yin, Cheng Lu
The present study aimed to screen the differentially expressed genes (DEGs) in tumor‑associated stroma of pregnancy‑associated breast cancer (PABC). By analyzing Affymetrix microarray data (GSE31192) from the Gene Expression Omnibus database, DEGs between tumor asso-ciated stromal cells and normal stromal cells in PABC were identified. Gene Ontology (GO) function and pathway enrichment analyses for the DEGs were then performed, followed by construction of a protein‑protein interaction (PPI) network. A total of 94 upregulated and 386 downregulated DEGs were identified between tumor associated stromal cells and normal stromal cells in patients with PABC...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28707256/monitoring-in-vivo-the-mammary-gland-microstructure-during-morphogenesis-from-lactation-to-post-weaning-using-diffusion-tensor-mri
#7
Noam Nissan, Edna Furman-Haran, Myra Shapiro-Feinberg, Dov Grobgeld, Hadassa Degani
Lactation and the return to the pre-conception state during post-weaning are regulated by hormonal induced processes that modify the microstructure of the mammary gland, leading to changes in the features of the ductal / glandular tissue, the stroma and the fat tissue. These changes create a challenge in the radiological workup of breast disorder during lactation and early post-weaning. Here we present non-invasive MRI protocols designed to record in vivo high spatial resolution, T2-weighted images and diffusion tensor images of the entire mammary gland...
July 13, 2017: Journal of Mammary Gland Biology and Neoplasia
https://www.readbyqxmd.com/read/28670784/gene-environment-interactions-involving-functional-variants-results-from-the-breast-cancer-association-consortium
#8
Myrto Barrdahl, Anja Rudolph, John L Hopper, Melissa C Southey, Annegien Broeks, Peter A Fasching, Matthias W Beckmann, Manuela Gago-Dominguez, J Esteban Castelao, Pascal Guénel, Thérèse Truong, Stig E Bojesen, Susan M Gapstur, Mia M Gaudet, Hermann Brenner, Volker Arndt, Hiltrud Brauch, Ute Hamann, Arto Mannermaa, Diether Lambrechts, Lynn Jongen, Dieter Flesch-Janys, Kathrin Thoene, Fergus J Couch, Graham G Giles, Jacques Simard, Mark S Goldberg, Jonine Figueroa, Kyriaki Michailidou, Manjeet K Bolla, Joe Dennis, Qin Wang, Ursula Eilber, Sabine Behrens, Kamila Czene, Per Hall, Angela Cox, Simon Cross, Anthony Swerdlow, Minouk J Schoemaker, Alison M Dunning, Rudolf Kaaks, Paul D P Pharoah, Marjanka Schmidt, Montserrat Garcia-Closas, Douglas F Easton, Roger L Milne, Jenny Chang-Claude
Investigating the most likely causal variants identified by fine-mapping analyses may improve the power to detect gene-environment interactions. We assessed the interplay between 70 SNPs identified by genetic fine-scale mapping of susceptibility loci and 11 epidemiological breast cancer risk factors in relation to breast cancer. Analyses were conducted on up to 58,573 subjects (26,968 cases, 31,605 controls) from the Breast Cancer Association Consortium (BCAC), in one of the largest studies of its kind. Analyses were carried out separately for estrogen receptor positive (ER+) and estrogen receptor negative (ER-) disease...
July 3, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28667029/association-of-the-del1518-promoter-rs3730485-polymorphism-in-the-mdm2-gene-with-breast-cancer-in-a-mexican-population
#9
Martha Patricia Gallegos-Arreola, María Guadalupe Márquez-Rosales, José Sánchez-Corona, Luis Eduardo Figuera, Guillermo Zúñiga-González, Ana María Puebla-Pérez, Jorge Iván Delgado-Saucedo, Héctor Montoya-Fuentes
INTRODUCTION: The MDM2 gene plays an important role in tumorigenesis. The data on the Del1518 promoter polymorphism in the MDM2 gene have revealed associations with cancer. MATERIAL AND METHODS: We examined the role of the MDM2 Del1518 polymorphism through a comparison of the genotypes of 345 healthy Mexican women with those of 742 Mexican women with breast cancer (BC). RESULTS: The genotype frequencies of the MDM2 Del1518 polymorphism in controls and patients with BC were 64% and 55...
May 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28651116/pd-1-pd-l1-and-ctla-4-in-pregnancy-related-and-in-early-onset-breast-cancer-a-comparative-study
#10
Balázs Ács, Lilla Madaras, Anna-Mária Tőkés, Attila Kristóf Kovács, Erzsébet Kovács, Magdolna Ozsvári-Vidákovich, Ádám Karászi, Ede Birtalan, Magdolna Dank, Attila Marcell Szász, Janina Kulka
PURPOSE: We aimed to compare the immunohistochemical expression of PD-1, PD-L1 and CTLA-4 of pregnancy-related breast cancer (PRBC) and early onset non-PRBC (YWBC), and their prognosis prediction potential was correlated to that of conventional clinicopathological factors. METHODS: Twenty-one PRBC cases were paired with 21 YWBC in this matched case-control study. Immune-checkpoint markers (ICM) were evaluated with immunohistochemistry (IHC) on whole slides using the following antibodies: PD-1 (NAT-105), PD-L1 (28-8) and CTLA-4 (F-8)...
June 23, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28649094/current-management-of-pregnancy-associated-breast-cancer
#11
H Hy Yu, P Sy Cheung, R Cy Leung, T N Leung, W H Kwan
Pregnancy-associated breast cancer is the most common malignancy during pregnancy with an expected rise in incidence. The belief in the need for termination of pregnancy and that chemotherapy is contra-indicated during pregnancy is challenged by recent evidence. Patients can consider breast-conserving surgery and sentinel lymph node biopsy with acceptably low fetal risk from radiation exposure. A range of chemotherapeutics is possible in the second trimester in terms of drug class and frequency. Hormone therapy and monoclonal antibody therapy are contra-indicated during pregnancy and lactation...
June 26, 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/28609163/imaging-appearance-and-clinical-impact-of-preoperative-breast-mri-in-pregnancy-associated-breast-cancer
#12
Kelly S Myers, Lauren A Green, Lizza Lebron, Elizabeth A Morris
OBJECTIVE: The purpose of this study is to describe the imaging features of pregnancy-associated breast cancer (PABC) on breast MRI and to consider the impact of preoperative MRI on patient management. MATERIALS AND METHODS: A retrospective review of medical records from January 1994 to May 2014 identified 183 women who presented with a new diagnosis of breast cancer during pregnancy or within 1 year postpartum. MR images were available for 53 of these patients, all of whom were included in the study...
June 13, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28603694/estrogen-effects-on-the-mammary-gland-in-early-and-late-life-and-breast-cancer-risk
#13
REVIEW
Genevieve Victoria Dall, Kara Louise Britt
A woman has an increased risk of breast cancer if her lifelong estrogen exposure is increased due to an early menarche, a late menopause, and/or an absence of childbearing. For decades, it was presumed that the number of years of exposure drove the increased risk, however, recent epidemiological data have shown that early life exposure (young menarche) has a more significant effect on cancer risk than late menopause. Thus, rather than the overall exposure it seems that the timing of hormone exposure plays a major role in defining breast cancer risk...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28572259/emerging-data-and-current-challenges-for-young-old-obese-or-male-patients-with-breast-cancer
#14
EDITORIAL
Rachel A Freedman, Ann H Partridge
There are distinct subgroups of patients who have historically been underrepresented in most prospective clinical trials in breast cancer, including the youngest and oldest patients, male patients, and those struggling with obesity. Herein, we review current and future directions in research for each of these special populations with breast cancer, highlighting significant knowledge gaps and priorities in tumor biology and heterogeneity, therapeutic decision making promotion of adherence, supportive care, and psychosocial and functional well-being...
June 1, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28526992/epithelial-mesenchymal-transition-emt-in-metastatic-breast-cancer-in-omani-women
#15
Ritu Lakhtakia, Adil Aljarrah, Muhammad Furrukh, Shyam S Ganguly
Breast cancer (BC) in Oman affects younger women and has a more aggressive course. Clinical and biological variables like age, pregnancy, tumor size, type, grade, receptor expression and proliferation predict disease aggression but there is no direct predictor of metastasis except lymphovascular invasion. Epithelial-mesenchymal transition (EMT) is characterized by epithelial cells losing epithelial and acquiring mesenchymal morpho-immunophenotypic characteristics. In tumors, EMT-like transitions may signify a metastatic phenotype and have features in common with cancer stem cells (CSC) which show resistance to chemotherapy...
May 19, 2017: Cancer Microenvironment: Official Journal of the International Cancer Microenvironment Society
https://www.readbyqxmd.com/read/28526378/association-between-prepregnancy-obesity-and-metabolic-risk-in-chilean-premenopausal-women-10%C3%A2-y-postpartum
#16
Maria Luisa Garmendia, Carolina Zamudio, Marcela Araya, Juliana Kain
OBJECTIVES: One of every four pregnant women in Chile is obese. Gestational obesity is associated with maternal metabolic complications in pregnancy (e.g., gestational diabetes, preeclampsia), but to our knowledge, there is little evidence on relationships with future metabolic risk. The aim of this study was to evaluate the association between prepregnancy obesity (prepregnancy body mass index ≥30 kg/m(2)) or excessive gestational weight gain (GWG; according to the 2009 recommendations from the Institute of Medicine), and maternal metabolic complications 10 y postpartum in premenopausal Chilean women...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28526012/the-pregnancy-and-fertility-prefer-study-an-italian-multicenter-prospective-cohort-study-on-fertility-preservation-and-pregnancy-issues-in-young-breast-cancer-patients
#17
Matteo Lambertini, Paola Anserini, Valeria Fontana, Francesca Poggio, Giuseppina Iacono, Annalisa Abate, Alessia Levaggi, Loredana Miglietta, Claudia Bighin, Sara Giraudi, Alessia D'Alonzo, Eva Blondeaux, Davide Buffi, Francesco Campone, Domenico F Merlo, Lucia Del Mastro
BACKGROUND: Fertility and pregnancy issues are of key importance for young breast cancer patients. Despite several advances in the field, there are still multiple unmet needs and barriers in discussing and dealing with these concerns. To address the significant challenges related to fertility and pregnancy issues, the PREgnancy and FERtility (PREFER) study was developed as a national comprehensive program aiming to optimize care and improve knowledge around these topics. METHODS: The PREFER study is a prospective cohort study conducted across several Italian institution affiliated with the Gruppo Italiano Mammella (GIM) group evaluating patterns of care and clinical outcomes of young breast cancer patients dealing with fertility and pregnancy issues...
May 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28487351/gestational-high-fat-diet-and-bisphenol-a-exposure-heightens-mammary-cancer-risk
#18
Yuet-Kin Leung, Vinothini Govindarajah, Ana Cheong, Jennifer Veevers, Dan Song, Robin Gear, Xuegong Zhu, Jun Ying, Ady Kendler, Mario Medvedovic, Scott Belcher, Shuk-Mei Ho
In utero exposure to bisphenol A (BPA) increases mammary cancer susceptibility in offspring. High-fat diet is widely believed to be a risk factor of breast cancer. The objective of this study was to determine whether maternal exposure to BPA in addition to high-butterfat (HBF) intake during pregnancy further influences carcinogen-induced mammary cancer risk in offspring, and its dose-response curve. In this study, we found that gestational HBF intake in addition to a low-dose BPA (25 µg/kg BW/day) exposure increased mammary tumor incidence in a 50-day-of-age chemical carcinogen administration model and altered mammary gland morphology in offspring in a non-monotonic manner, while shortening tumor-free survival time compared with the HBF-alone group...
July 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28423605/pregnancy-at-early-age-is-associated-with-a-reduction-of-progesterone-responsive-cells-and-epithelial-wnt-signaling-in-human-breast-tissue
#19
Simone Muenst, Robert Mechera, Silvio Däster, Salvatore Piscuoglio, Charlotte K Y Ng, Fabienne Meier-Abt, Walter P Weber, Savas D Soysal
BACKGROUND: Pregnancy at early age is the most significant modifiable factor which consistently decreases lifetime breast cancer risk. However, the underlying mechanisms haven't been conclusively identified. Studies in mice suggest a reduction in progesterone-receptor (PR) sensitive epithelial cells as well as a downregulation of the Wnt signaling pathway as being one of the main mechanisms for the protective effect of early pregnancy. The aim of our study was to validate these findings in humans...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28381301/meanings-of-abortion-in-context-accounts-of-abortion-in-the-lives-of-women-diagnosed-with-breast-cancer
#20
Maggie Kirkman, Carmel Apicella, Jillian Graham, Martha Hickey, John L Hopper, Louise Keogh, Ingrid Winship, Jane Fisher
BACKGROUND: A breast cancer diagnosis and an abortion can each be pivotal moments in a woman's life. Research on abortion and breast cancer deals predominantly with women diagnosed during pregnancy who might be advised to have an abortion. The other-discredited but persistent-association is that abortions cause breast cancer. The aim here was to understand some of the ways in which women themselves might experience the convergence of abortion and breast cancer. METHODS: Among 50 women recruited from the Australian Breast Cancer Family Study and interviewed in depth about what it meant to have a breast cancer diagnosis before the age of 41, five spontaneously told of having or contemplating an abortion...
April 5, 2017: BMC Women's Health
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