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breast cancer progesterone

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https://www.readbyqxmd.com/read/29651273/are-there-differences-in-androgen-receptor-expression-in-invasive-breast-cancer-in-african-tanzanian-population-in-comparison-with-the-caucasian-italian-population
#1
Sara Bravaccini, Sara Ravaioli, Dino Amadori, Emanuela Scarpi, Maurizio Puccetti, Andrea Rocca, Maria Maddalena Tumedei, Nestory Masalu, Jackson Kahima, Akwilina Pangan, Lucas Faustine, Alberto Farolfi, Roberta Maltoni, Massimiliano Bonafè, Patrizia Serra, Giuseppe Bronte
Purpose: Androgen receptor (AR) has been shown to have prognostic implication on breast cancer (BC). Data on the biological features of African BCs are poor. We decided for the first time to compare AR expression of Tanzanian and Italian BC patients. Patients and methods: Of the 69 consecutive patients seen at the Bugando Medical Center (Mwanza, Tanzania) from 2003 to 2010, who underwent resection of primary BC evaluable for estrogen receptor, progesterone receptor (PgR), and HER2 only 65 were evaluable for AR by immunohistochemistry...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29645079/antinuclear-antibodies-in-patients-with-breast-cancer
#2
Renato Nisihara, Mariana C C Machoski, Aline Neppel, Carlos A Maestri, Iara Messias-Reason, Thelma L Skare
PURPOSE: To study the prevalence of ANA in breast cancer patients and its association with tumor characteristics. METHODS: Ninety one patients with breast mass detected by image studies and assigned to do diagnostic biopsy and eventual surgical treatment were studied for demographical, tumor data and presence of ANA. Serum of positive ANA patients was screened for ENA (extractable nuclear antigens) profile. As comparison, 91 healthy individuals matched for age and from same geographical area were included...
April 12, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29644001/bag3-promotes-tumour-cell-proliferation-by-regulating-egfr-signal-transduction-pathways-in-triple-negative-breast-cancer
#3
Sarah Shields, Emer Conroy, Tony O'Grady, Alo McGoldrick, Kate Connor, Mark P Ward, Zivile Useckaite, Eugene Dempsey, Rebecca Reilly, Yue Fan, Anthony Chubb, David Gomez Matallanas, Elaine W Kay, Darran O'Connor, Amanda McCann, William M Gallagher, Judith A Coppinger
Triple-negative breast cancer (TNBC), is a heterogeneous disease characterised by absence of expression of the estrogen receptor (ER), progesterone receptor (PR) and lack of amplification of human epidermal growth factor receptor 2 (HER2). TNBC patients can exhibit poor prognosis and high recurrence stages despite early response to chemotherapy treatment. In this study, we identified a pro-survival signalling protein BCL2- associated athanogene 3 (BAG3) to be highly expressed in a subset of TNBC cell lines and tumour tissues...
March 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29642629/17%C3%AE-hydroxysteroid-dehydrogenase-type-2-expression-is-induced-by-androgen-signaling-in-endometrial-cancer
#4
Chiaki Hashimoto, Yasuhiro Miki, Sota Tanaka, Kiyoshi Takagi, Misaki Fue, Zhulanqiqige Doe, Bin Li, Nobuo Yaegashi, Takashi Suzuki, Kiyoshi Ito
Endometrial cancer is one of the most common female pelvic cancers and has been considered an androgen-related malignancy. Several studies have demonstrated the anti-cell proliferative effect of androgen on endometrial cancer cells; however, the mechanisms of the anti-cancer effect of androgen remain largely unclear. 17β-hydroxysteroid dehydrogenase type 2 (17β-HSD2), which catalyzes the conversion of E2 to E1, is known to be upregulated by androgen treatment in breast cancer cells. In this study, we therefore focused on the role of androgen on estrogen dependence in endometrial cancer...
April 10, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29629944/human-endometriosis-tissue-microarray-reveals-site-specific-expression-of-estrogen-receptors-progesterone-receptor-and-ki67
#5
Mariano Colón-Caraballo, Miosotis García, Adalberto Mendoza, Idhaliz Flores
Most available therapies for endometriosis are hormone-based and generally broadly used without taking into consideration the ovarian hormone receptor expression status. This contrasts strikingly with the standard of care for other hormone-based conditions such as breast cancer. We therefore aimed to characterize the expression of ovarian steroid hormone receptors for estrogen alpha (ESR1), estrogen beta (ESR2), and progesterone (PGR) in different types of endometriotic lesions and eutopic endometrium from women with endometriosis and controls using a tissue microarray (TMA)...
April 7, 2018: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29627127/the-action-of-estrogens-and-progestogens-in-the-young-female-breast
#6
Irene Zolfaroli, Juan J Tarín, Antonio Cano
Evidence from different sources sustains a pro-oncogenic role of hormones, estrogens and progestogens, on the breast. The issue is of interest for young women, who are exposed to the hormonal changes imposed by the ovarian cycle and, often, take hormones with contraceptive purposes. Experimental and clinical studies show that both estrogens and progesterone are involved in mammary development during puberty and lactation, the changes being observed across mammalian species, including humans. Estrogen receptors, and more particularly the alpha isoform, participate in molecular processes of stem cells differentiation and epithelial proliferation through paracrine actions implicating growth factors...
March 28, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29625565/sall1-functions-as-a-tumor-suppressor-in-breast-cancer-by-regulating-cancer-cell-senescence-and-metastasis-through-the-nurd-complex
#7
Chunling Ma, Fang Wang, Bing Han, Xiaoli Zhong, Fusheng Si, Jian Ye, Eddy C Hsueh, Lynn Robbins, Susan M Kiefer, Yanping Zhang, Pamela Hunborg, Mark A Varvares, Michael Rauchman, Guangyong Peng
BACKGROUND: SALL1 is a multi-zinc finger transcription factor that regulates organogenesis and stem cell development, but the role of SALL1 in tumor biology and tumorigenesis remains largely unknown. METHODS: We analyzed SALL1 expression levels in human and murine breast cancer cells as well as cancer tissues from different types of breast cancer patients. Using both in vitro co-culture system and in vivo breast tumor models, we investigated how SALL1 expression in breast cancer cells affects tumor cell growth and proliferation, metastasis, and cell fate...
April 6, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29620153/histone-deacetylase-inhibitors-alter-the-expression-of-molecular-markers-in-breast-cancer-cells-via-micrornas
#8
Yehui Shi, Yongsheng Jia, Weipeng Zhao, Liyan Zhou, Xiaojuan Xie, Zhongsheng Tong
Histone deacetylase inhibitors (HDACis) are able to suppress breast cancer cells in vitro and in vivo by altering the expression of estrogen receptor (ER), progesterone receptor (PR) or human epidermal growth factor receptor 2 (Her2/neu). Since HDACis can alter the expression of various microRNAs (miRNAs/miRs), the present study aimed to examine the role of miRNAs in the effects of HDACis on breast cancer cells. We first examined the mRNA expression of ER, PR, and Her2/neu using RT-PCR and the protein levels of ER, PR, and Her2/neu using western blot analysis in MDA-MB-231 and BT474 cells, after trichostatin A (TSA) or vorinostat (SAHA) treatment...
April 3, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29620140/diagnostic-and-prognostic-values-of-contrast%C3%A2-enhanced-ultrasound-combined-with-diffusion%C3%A2-weighted-magnetic-resonance-imaging-in-different-subtypes-of-breast-cancer
#9
Gui-Feng Liu, Zong-Qiang Wang, Shu-Hua Zhang, Xue-Feng Li, Lin Liu, Ying-Ying Miao, Shao-Nan Yu
The present study aimed to investigate the diagnostic and prognostic values of contrast‑enhanced ultrasound (CEUS) combined with diffusion‑weighted magnetic resonance imaging (DW‑MRI) in different subtypes of breast cancer (BC). CEUS and DW‑MRI were conducted in 232 patients with BC prior to surgical treatment. Patients were categorized as having the luminal A subtype, the luminal B subtype, triple‑negative subtype or the human epidermal growth factor receptor 2 (Her‑2)‑positive subtype according to their expression of the estrogen receptor (ER), progesterone receptor (PR) and Her‑2, as detected by immunohistochemistry...
March 27, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29619374/modulation-of-molecular-biomarker-expression-in-response-to-chemotherapy-in-invasive-ductal-carcinoma
#10
Mana Oloomi, Neda Moazzezy, Saeid Bouzari
Breast cancer (BC) has varied morphological and biological features and is classified based on molecular and morphological examinations. Molecular classification of BC is based on biological gene-expression profiling. In this study, biomarker modulation was assessed during BC treatment in 30 previously untreated patients. Heterogeneity among patients was pathologically diagnosed and classified into luminal and basal-like immunohistochemical profiles based on estrogen, progesterone, and human epidermal growth factor receptor (ER/PR/HER2) status...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29619056/should-molecular-subtype-be-recommended-as-one-of-the-selection-criteria-for-accelerated-partial-breast-irradiation-preliminary-results-from-an-asian-cohort
#11
Tabassum Wadasadawala, Monidipa Mondal, Siji Nojin Paul, Vani Parmar, Nita Nair, Tanuja Shet, Sangeeta Desai, Sudeep Gupta, Rajiv Sarin
Purpose: The purpose of this study was to report clinical outcomes in patients treated with accelerated partial breast irradiation (APBI), stratified as per molecular subtype and American Society for Therapeutic Radiology and Oncology/Groupe Européen de Curiethérapie and European Society for Radiotherapy & Oncology (ASTRO/GEC-ESTRO) patient selection criteria in order to determine whether molecular subtype should be recommended as one of the selection criteria for APBI. Material and methods: 157 early-stage breast cancers patients, treated with APBI using multi-catheter interstitial brachytherapy with ≥ 6 months follow-up were included...
February 2018: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/29617354/radiation-induced-gene-expression-changes-in-high-and-low-grade-breast-cancer-cell-types
#12
Valentina Bravatà, Claudia Cava, Luigi Minafra, Francesco Paolo Cammarata, Giorgio Russo, Maria Carla Gilardi, Isabella Castiglioni, Giusi Irma Forte
BACKGROUND: There is extensive scientific evidence that radiation therapy (RT) is a crucial treatment, either alone or in combination with other treatment modalities, for many types of cancer, including breast cancer (BC). BC is a heterogeneous disease at both clinical and molecular levels, presenting distinct subtypes linked to the hormone receptor (HR) status and associated with different clinical outcomes. The aim of this study was to assess the molecular changes induced by high doses of ionizing radiation (IR) on immortalized and primary BC cell lines grouped according to Human epidermal growth factor receptor (HER2), estrogen, and progesterone receptors, to study how HR status influences the radiation response...
April 4, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29615433/mutation-profiling-of-key-cancer-genes-in-primary-breast-cancers-and-their-distant-metastases
#13
Willemijne Ame Schrijver, Pier Selenica, Ju Youn Lee, Charlotte K Y Ng, Kathleen Burke, Salvatore Piscuoglio, Samuel H Berman, Jorge S Reis-Filho, Britta Weigelt, Paul J Van Diest, Cathy B Moelans
Although the repertoire of somatic genetic alterations of primary breast cancers has been extensively catalogued, the genetic differences between primary and metastatic tumors have been less studied. In this study, we compared somatic mutations and gene copy number alterations of primary breast cancers and their matched metastases from patients with estrogen receptor (ER)-negative disease, with higher incidence of brain metastases than ER-positive/HER2-negative cancers. DNA samples obtained from formalin-fixed paraffin-embedded ER-negative/HER2-positive (n=9) and ER-, progesterone receptor (PR-), HER2-negative (n=8) primary breast cancers and from paired brain or skin metastases and normal tissue were subjected to a hybridization capture-based massively parallel sequencing assay, targeting 341 key cancer genes...
April 3, 2018: Cancer Research
https://www.readbyqxmd.com/read/29615076/use-of-the-tumor-infiltrating-cd8-to-foxp3-lymphocyte-ratio-in-predicting-treatment-responses-to-combination-therapy-with-pertuzumab-trastuzumab-and-docetaxel-for-advanced-her2-positive-breast-cancer
#14
Koji Takada, Shinichiro Kashiwagi, Wataru Goto, Yuka Asano, Katsuyuki Takahashi, Tsutomu Takashima, Shuhei Tomita, Masahiko Ohsawa, Kosei Hirakawa, Masaichi Ohira
BACKGROUND: The trastuzumab, pertuzumab, and docetaxel (TPD) regimen is strongly recommended as a treatment option for first-line therapy for advanced human epidermal growth factor receptor (HER) 2-positive breast cancer. Monitoring the host microenvironments in cancer plays a significant role in predicting prognoses and curative effects. It is important to clarify the role of immune related gene expression in tumor-infiltrating lymphocytes in the tumor microenvironment. In this study, we evaluated the impact of chemotherapy with a TPD regimen, on immune micro environments in HER2-positive breast cancer using immune related proteins as indicators...
April 3, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29615063/prediction-of-treatment-responses-to-neoadjuvant-chemotherapy-in-triple-negative-breast-cancer-by-analysis-of-immune-checkpoint-protein-expression
#15
Yuka Asano, Shinichiro Kashiwagi, Wataru Goto, Koji Takada, Katsuyuki Takahashi, Tamami Morisaki, Hisakazu Fujita, Tsutomu Takashima, Shuhei Tomita, Masahiko Ohsawa, Kosei Hirakawa, Masaichi Ohira
BACKGROUND: "Avoiding immune destruction" has recently been established as one of the hallmarks of cancer. The programmed cell death (PD)-1/programmed cell death-ligand (PD-L) 1 pathway is an important immunosuppression mechanism that allows cancer cells to escape host immunity. The present study investigated how the expressions of these immune checkpoint proteins affected responses to neo-adjuvant chemotherapy (NAC) in breast cancer. METHODS: A total of 177 patients with resectable early-stage breast cancer were treated with NAC...
April 4, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29611754/experience-with-eribulin-in-triple-negative-metastatic-breast-cancer-case-studies
#16
Maria Isabel Gallegos Sancho, Raúl Márquez-Vázquez, Alfonso Sánchez-Muñoz
Triple-negative breast cancers are defined as tumors negative for estrogen receptors, progesterone receptors and human EGFR2. These tumors exhibit diverse biological behavior and have a poor prognosis; chemotherapy is the mainstay of treatment. The first case involves a young woman with cerebral and cerebellar metastases who achieved a persistent objective response to fourth-line eribulin. In the second case, a woman who became metastatic during adjuvant therapy with anthracyclines and taxanes, and was refractory to capecitabine + bevacizumab, achieved a partial response and local symptom improvement with eribulin + bevacizumab...
March 2018: Future Oncology
https://www.readbyqxmd.com/read/29609951/bone-metastasis-in-advanced-breast-cancer-analysis-of-gene-expression-microarray
#17
Irawan Cosphiadi, Tubagus D Atmakusumah, Nurjati C Siregar, Abdul Muthalib, Alida Harahap, Muchtarruddin Mansyur
BACKGROUND: Approximately 30% to 40% of breast cancer recurrences involve bone metastasis (BM). Certain genes have been linked to BM; however, none have been able to predict bone involvement. In this study, we analyzed gene expression profiles in advanced breast cancer patients to elucidate genes that can be used to predict BM. PATIENTS AND METHODS: A total of 92 advanced breast cancer patients, including 46 patients with BM and 46 patients without BM, were identified for this study...
March 8, 2018: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29603032/association-of-reproductive-history-with-breast-tissue-characteristics-and-receptor-status-in-the-normal-breast
#18
Marike Gabrielson, Flaminia Chiesa, Catharina Behmer, Katarina Rönnow, Kamila Czene, Per Hall
INTRODUCTION: Reproductive history has been associated with breast cancer risk, but more knowledge of the underlying biological mechanisms is needed. Because of limited data on normal breast tissue from healthy women, we examined associations of reproductive history and established breast cancer risk factors with breast tissue composition and markers of hormone receptors and proliferation in a nested study within the Karolinska Mammography project for risk prediction for breast cancer (Karma)...
March 30, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29602380/-consensus-statement-on-biomarkers-in-breast-cancer-by-the-spanish-society-of-pathology-and-the-spanish-society-of-medical-oncology
#19
José Palacios Calvo, Joan Albanell, Federico Rojo, Eva Ciruelos, Ignacio Aranda-López, Javier Cortés, Tomás García-Caballero, Miguel Martín, María Ángeles López-García, Ramon Colomer
This consensus statement is a joint initiative of the Spanish Society of Pathology (SEAP) and the Spanish Society of Medical Oncology (SEOM). It revises and updates the recommendations for the use of biomarkers in the diagnosis and treatment of breast cancer. The group of experts recommends that, in all cases of breast cancer, the histologic grade and the alpha-estrogen receptor (ER), progesterone receptor, Ki-67 and HER2 status should be determined, in order to assist prognosis and establish therapeutic options, including hormone therapy, chemotherapy and anti-HER2 therapy...
April 2018: Revista Española de Patología
https://www.readbyqxmd.com/read/29600224/estrogen-receptor-progesterone-receptor-and-human-epidermal-growth-factor-receptor-2-status-in-breast-cancer-a-retrospective-study-of-5436-women-from-a-regional-cancer-center-in-south-india
#20
Rekha Vijay Kumar, Dipti Panwar, Usha Amirtham, Chennagiri Srinivasmurthy Premalata, Champaka Gopal, Suma Mysore Narayana, Geetha Vikram Patil Okaly, K C Lakshmaiah, S Krishnamurthy
Aim: The aim of the study was to analyze the estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor-2 (HER2) status over 7 years in South Indian women with breast cancer. Further analysis of a subgroup was done to study clinically defined subtypes and the role of preanalytical factors in needle core biopsies (NCBs) and excised specimens. Materials and Methods: This was a retrospective study from January 2010 to December 2016...
January 2018: South Asian Journal of Cancer
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