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https://www.readbyqxmd.com/read/28733706/phage-display-selection-in-vitro-characterization-and-correlative-pet-imaging-of-a-novel-her3-peptide
#1
Benjamin M Larimer, Nicholas Phelan, Eric Wehrenberg-Klee, Umar Mahmood
PURPOSE: HER3 (ERBB3) is a receptor tyrosine kinase that is implicated in treatment resistance across multiple cancers, including those of the breast, lung, and prostate. Overexpression of HER3 following targeted therapy can occur rapidly and heterogeneously both within a single lesion and across sites of metastasis, making protein quantification by biopsy highly challenging. A global, non-invasive methodology such as positron emission tomography (PET) imaging can permit serial quantification of HER3, providing a useful approach to monitor HER3 expression across the entire tumor burden both prior to and following treatment...
July 21, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28730256/advanced-metastatic-breast-cancer-in-pregnancy-the-imperative-of-physical-breast-examination-in-pregnancy
#2
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/28728749/numb-chin-with-mandibular-pain-or-masticatory-weakness-as-indicator-for-systemic-malignancy-a-case-series-study
#3
Shin-Yu Lu, Shu-Hua Huang, Yen-Hao Chen
BACKGROUND/PURPOSE: Numb chin syndrome (NCS) is a critical sign of systemic malignancy; however it remains largely unknown by clinicians and dentists. The aim of this study was to investigate NCS that is more often associated with metastatic cancers than with benign diseases. METHODS: Sixteen patients with NCS were diagnosed and treated. The oral and radiographic manifestations were assessed. RESULTS: Four (25%) of 16 patients with NCS were affected by nonmalignant diseases (19% by medication-related osteonecrosis of the jaw and 6% by osteopetrosis); yet 12 (75%) patient conditions were caused by malignant metastasis, either in the mandible (62%) or intracranial invasion (13%)...
July 17, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28726172/combined-treatment-for-non-small-cell-lung-cancer-and-breast-cancer-patients-with-brain-metastases-with-whole-brain-radiotherapy-and-temozolomide-a-systematic-review-and-meta-analysis
#4
REVIEW
Jingru Tian, Yien Luo, Juanjuan Xiang, Jingqun Tang
Brain metastasis is the leading cause of death among advanced non-small cell lung cancer (NSCLC) and breast cancer patients. The standard treatment for brain metastases is radiotherapy. The combination of radiotherapy and chemotherapy has been tested. However, the management of brain metastases has yet to be successful. Here, we aimed to determine the efficacy and safety of whole brain radiotherapy (WBRT) alone or in combination with temozolomide (TMZ) in NSCLC and breast cancer patients with brain metastases...
July 19, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28725538/a-rare-case-of-solitary-kidney-metastasis-following-primary-laryngeal-squamous-cell-carcinoma
#5
Sharon Del Vecchio, Robert Ellis, Kylie Gallagher, Keng Lim Ng, Li Ma, Geoffrey Strutton, Simon Wood
Laryngeal cancer is the 14th most common malignancy worldwide, and its common subtype squamous cell carcinoma (SCC) is highly associated with tobacco use and long-term alcohol consumption. The incidence of distant metastasis from a primary laryngeal cancer has been reported to be very low, between 6.5% and 8.5%, according to published tumour registry data. Distant metastases of laryngeal SCC most commonly involve the lung, liver, bone and mediastinum, seldom involving the kidney. Renal metastasis has been well established in many other cancers such as lymphoma, lung, breast and gastric carcinoma...
2017: Journal of Kidney Cancer and VHL
https://www.readbyqxmd.com/read/28724364/tamoxifen-reverses-epithelial-mesenchymal-transition-by-demethylating-mir-200c-in-triple-negative-breast-cancer-cells
#6
Qian Wang, Yu Cheng, Yan Wang, Yibo Fan, Ce Li, Ye Zhang, Yiding Wang, Qian Dong, Yanju Ma, Yue-E Teng, Xiujuan Qu, Yunpeng Liu
BACKGROUND: Although the efficacy of tamoxifen (TAM) for breast cancer has been attributed to inducing cell cycle arrest and apoptosis by inhibiting estrogen receptor (ER) signaling, recent evidence indicates that TAM also possesses ER-independent antitumor activity through an unclear mechanism. The present study investigated the anti-tumor mechanism of TAM on mesenchymal triple-negative breast cancer (TNBC). METHODS: The inhibitory effect of TAM on tumor migration and metastasis was analyzed by transwell chamber in vitro and by murine xenograft model in vivo...
July 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28723623/daurinol-blocks-breast-and-lung-cancer-metastasis-and-development-by-inhibition-of-focal-adhesion-kinase-fak
#7
Jong K Woo, Hyun J Jung, Ji-Youn Park, Ju-Hee Kang, Byung I Lee, DongYun Shin, Chu W Nho, Soo-Young Cho, Je K Seong, Seung H Oh
FAK overexpression has been reported in diverse primary and metastatic tumor tissues, supporting its pro-tumorigenic and pro-metastatic roles. Therefore, we have developed a neo-treatment strategy using daurinol to effectively treat cancer metastasis. Daurinol blocked cancer cell migration and invasion in vitro and exhibited anti-metastatic activity in an experimental metastasis model of breast and lung cancer. Daurinol selectively inhibited phosphorylation of FAK at Tyr925, Tyr576/577, and Tyr397 sites in a dose- and time-dependent manner...
July 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28722004/oral-gingival-metastasis-a-diagnostic-dilemma
#8
Nalini Aswath, Chandrakanth Balakrishnan, Vidyarani Shyamsundar, Sarumathi Thirrugnanamurthy
Oral cavity is a rare target for metastasis with an incidence of 1% among all oral cancers. In 24% of such cases, oral metastasis is the first indication of an undiagnosed primary. Metastatic oral malignancies have been reported in the mandible, tongue, and gingiva. Although gingival metastasis has been reported from lung, prostate, rectal carcinoma in men and carcinoma of breast, adrenal glands, and genitalia in females, gingival metastasis from carcinoma of the penis has not been reported. Herein, a case of metastatic gingival carcinoma that developed after extraction of teeth from primary carcinoma of the penis is presented...
May 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28720841/novel-immunohistochemistry-based-signatures-to-predict-metastatic-site-of-triple-negative-breast-cancers
#9
Sergey Klimov, Padmashree Cg Rida, Mohammed A Aleskandarany, Andrew R Green, Ian O Ellis, Emiel Am Janssen, Emad A Rakha, Ritu Aneja
BACKGROUND: Although distant metastasis (DM) in breast cancer (BC) is the most lethal form of recurrence and the most common underlying cause of cancer related deaths, the outcome following the development of DM is related to the site of metastasis. Triple negative BC (TNBC) is an aggressive form of BC characterised by early recurrences and high mortality. Athough multiple variables can be used to predict the risk of metastasis, few markers can predict the specific site of metastasis...
July 18, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28720577/lysyl-oxidase-like-protein-loxl2-promotes-lung-metastasis-of-breast-cancer
#10
Fernando Salvador, Alberto Martin, Celia López-Menéndez, Gema Moreno-Bueno, Vanesa Santos, Alberto Vazquez-Naharro, Patricia G Santamaría, Saleta Morales, Pierre Dubus, Laura Muinelo-Romay, Rafael López López, Jason C Tung, Valerie M Weaver, Francisco Portillo, Amparo Cano
The lysyl oxidase-like protein LOXL2 has been suggested to contribute to tumor progression and metastasis, but in vivo evidence has been lacking. Here we provide functional evidence that LOXL2 is a key driver of breast cancer metastasis in two conditional transgenic mouse models of PyMT-induced breast cancer. LOXL2 ablation in mammary tumor cells dramatically decreased lung metastasis, whereas LOXL2 overexpression promoted metastatic tumor growth. LOXL2 depletion or overexpression in tumor cells does not affect extracellular matrix stiffness or organization in primary and metastatic tumors, implying a function for LOXL2 independent of its conventional role in extracellular matrix remodeling...
July 18, 2017: Cancer Research
https://www.readbyqxmd.com/read/28717660/a-novel-molecular-diagnostics-platform-for-somatic-and-germline-precision-oncology
#11
Rubén Cabanillas, Marta Diñeiro, David Castillo, Patricia C Pruneda, Cristina Penas, Guadalupe A Cifuentes, Álvaro de Vicente, Noelia S Durán, Rebeca Álvarez, Gonzalo R Ordóñez, Juan Cadiñanos
BACKGROUND: Next-generation sequencing (NGS) opens new options in clinical oncology, from therapy selection to genetic counseling. However, realization of this potential not only requires succeeding in the bioinformatics and interpretation of the results, but also in their integration into the clinical practice. We have developed a novel NGS diagnostic platform aimed at detecting (1) somatic genomic alterations associated with the response to approved targeted cancer therapies and (2) germline mutations predisposing to hereditary malignancies...
July 2017: Molecular Genetics & Genomic Medicine
https://www.readbyqxmd.com/read/28716024/mir-661-promotes-tumor-invasion-and-metastasis-by-directly-inhibiting-rb1-in-non-small-cell-lung-cancer
#12
Feiye Liu, Yanjun Cai, Xiaoxiang Rong, Jinzhang Chen, Dayong Zheng, Lu Chen, Junyi Zhang, Rongcheng Luo, Peng Zhao, Jian Ruan
BACKGROUND: Aberrant microRNA expression has been implicated in metastasis of cancers. MiR-661 accelerates proliferation and invasion of breast cancer and ovarian cancer, while impedes that of glioma. Its role in non small cell lung cancer (NSCLC) and underlying mechanism are worthy elucidation. METHODS: Expression of miR-661 was measured with real-time PCR in both NSCLC tissues and cell lines. The effects of miR-661 on migration, invasion and metastasis capacity of NSCLC were evaluated using wound healing, transwell assay and animal models...
July 17, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28715634/a-novel-strategy-utilizing-extracellular-cysteine-rich-domain-of-membrane-receptor-for-constructing-d-peptide-mediated-targeted-drug-delivery-systems-a-case-study-on-fn14
#13
Zhuoxuan Li, Jing Xie, Shan Peng, Sha Liu, Ying Wang, Weiyue Lu, Jie Shen, Chong Li
The development of proteolysis-resistant D-peptide ligands for targeted drug/gene delivery has been greatly limited, due to the challenge lies in the chemical synthesis of membrane receptors without altering their structures. In the present research, a novel strategy utilizing self-stabilized extracellular cysteine-rich domain (CRD) of membrane receptor was developed to construct D-peptide ligands and their mediated targeted drug delivery systems. Fibroblast growth factor-inducible 14 (Fn14), a cell surface receptor overexpressed in many cancers including pancreatic and triple-negative breast cancers, was selected as the model receptor...
July 17, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28703807/the-egfr-mir-338-3p-eya2-axis-controls-breast-tumor-growth-and-lung-metastasis
#14
Yingchun Liang, Xiaojie Xu, Tao Wang, Ying Li, Wenye You, Jing Fu, Yang Liu, Shuai Jin, Quanbo Ji, Wei Zhao, Qi Song, Ling Li, Tian Hong, Junjian Huang, Zhaohui Lyu, Qinong Ye
Dysregulation of the epidermal growth factor receptor (EGFR) promotes cancer cell growth, invasion and metastasis. However, its relevant downstream effectors are still limited. Here, we show that EGFR promotes breast tumor growth and metastasis by downregulating the tumor suppressor micoRNA-338-3p (miR-338-3p) and activating the EYA2 (EYA transcriptional coactivator and phosphatase 2) oncoprotein. EGFR represses miR-338-3p expression largely through HIF1α transcription factor. miR-338-3p inhibits EYA2 expression by binding to the 3'-untranslated region of EYA2...
July 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28703043/acid-sensitive-lipidated-doxorubicin-prodrug-entrapped-in-nanoemulsion-impairs-lung-tumor-metastasis-in-a-breast-cancer-model
#15
Ana Lygia Dos Santos Câmara, Gregor Nagel, Harald R Tschiche, Camila Magalhães Cardador, Luis Alexandre Muehlmann, Daniela Mara de Oliveira, Paula Queiroz Alvim, Ricardo Bentes Azevedo, Marcelo Calderón, João Paulo Figueiró Longo
AIM: To develop an acid-sensitive lipidated, doxorubicin (Dox) prodrug (C16-Dox) to be entrapped in lipid nanoemulsion (NE-C16-Dox) as a nanocarrier to treat breast cancer models (in vitro and in vivo). RESULTS: We report the efficacy of NE-C16-Dox in in vitro experiments, as well as the improved chemotherapeutic index and tumor-control efficacy compared with treatment with free Dox in an in vivo murine 4T1 breast cancer model. In addition, NE-C16-Dox allowed the use of a higher dose of Dox, acceptable biocompatibility and a significant reduction in lung metastasis...
July 13, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28699539/recent-advances-in-the-function-of-the-67-kda-laminin-receptor-and-its-targeting-for-personalized-therapy-in-cancer
#16
Ada Pesapane, Pia Ragno, Carmine Selleri, Nunzia Montuori
The 67 kDa high affinity laminin receptor (67LR) is a non integrin cell surface receptor for laminin, the major component of basement membranes. Interactions between 67LR and laminin play a major role in mediating cell adhesion, migration, proliferation and survival. 67LR derives from homo- or hetero-dimerization of a 37 kDa cytosolic precursor (37LRP), most probably by fatty acid acylation. Interestingly, 37LRP, also called p40 or OFA/iLR (oncofetal antigen/immature laminin receptor), is a multifunctional protein with a dual activity in the cytoplasm and in the nucleus...
July 10, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28698809/p-rex1-expression-in-invasive-breast-cancer-in-relation-to-receptor-status-and-distant-metastatic-site
#17
Jonathan D Marotti, Kristen E Muller, Laura J Tafe, Eugene Demidenko, Todd W Miller
BACKGROUND: Phosphatidylinositol-3,4,5-trisphosphate-dependent Rac exchange factor 1 (P-Rex1) has been implicated in cancer growth, metastasis, and response to phosphatidylinositol 3-kinase (PI3K) inhibitor therapy. The aim of this study was to determine whether P-Rex1 expression differs between primary and metastatic human breast tumors and between breast cancer subtypes. DESIGN: P-Rex1 expression was measured in 133 specimens by immunohistochemistry: 40 and 42 primary breast tumors from patients who did versus did not develop metastasis, respectively, and 51 breast-derived tumors from metastatic sites (36 of which had matching primary tumors available for analysis)...
2017: International Journal of Breast Cancer
https://www.readbyqxmd.com/read/28698590/tudor-domain-containing-protein-3-promotes-tumorigenesis-and-invasive-capacity-of-breast-cancer-cells
#18
Alan Morettin, Geneviève Paris, Younes Bouzid, R Mitchell Baldwin, Theresa J Falls, John C Bell, Jocelyn Côté
Tudor domain containing protein 3 (TDRD3) is a modular protein identified based on its ability to recognize methylated arginine motifs through its Tudor domain. We have previously shown that TDRD3 localizes to cytoplasmic stress granules, a structure shown to promote survival upon treatment with chemotherapeutic drugs in cancer cells. Here, we report TDRD3 as a novel regulator of cell proliferation and invasion in breast cancer cells. Our study also demonstrates that TDRD3 depletion inhibits tumor formation and metastasis to the lung in vivo...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28698458/integrin-%C3%AE-v%C3%AE-3-signaling-in-tumor-induced-bone-disease
#19
REVIEW
Kristin A Kwakwa, Julie A Sterling
Tumor-induced bone disease is common among patients with advanced solid cancers, especially those with breast, prostate, and lung malignancies. The tendency of these cancers to metastasize to bone and induce bone destruction is, in part, due to alterations in integrin expression and signaling. Substantial evidence from preclinical studies shows that increased expression of integrin αvβ3 in tumor cells promotes the metastatic and bone-invasive phenotype. Integrin αvβ3 mediates cell adhesion to several extracellular matrix proteins in the bone microenvironment which is necessary for tumor cell colonization as well as the transmission of mechanical signals for tumor progression...
July 8, 2017: Cancers
https://www.readbyqxmd.com/read/28694161/cxcr4-targeted-dendrimer-for-anti-cancer-drug-delivery-and-breast-cancer-cell-migration-inhibition
#20
Chuda Chittasupho, Songyot Anuchapreeda, Narong Sarisuta
CXCR4 and its ligand CXCL12 play a critical role in the metastasis of various types of cancer including breast cancer. Breast tumors preferentially metastasize to the lung, bones and distant lymph nodes, secreting high levels of CXCL12. We hypothesized that targeted inhibition of CXCR4 in breast cancer cells should suppress CXCR4-positive tumor cells toward secondary metastatic sites. In the present study, the efficacy of CXCR4 targeted dendrimers carrying DOX (LFC131-DOX-D4) on cellular binding, cytotoxicity, and migration of BT-549-Luc and T47D breast cancer cells was investigated...
July 7, 2017: European Journal of Pharmaceutics and Biopharmaceutics
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