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IGF-1 cancer

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https://www.readbyqxmd.com/read/29776602/blurring-boundaries-receptor-tyrosine-kinases-as-functional-g-protein-coupled-receptors
#1
Caitrin Crudden, Takashi Shibano, Dawei Song, Naida Suleymanova, Ada Girnita, Leonard Girnita
Receptor tyrosine kinases (RTKs) such as the insulin-like growth factor type 1 receptor (IGF-1R) control important biological activities as well as being involved in pathological processes. Due to their supportive nature in many human cancers they have long been considered attractive therapeutic targets. However, lessons learnt from early targeting trials highlight that a simple "active versus inactive" state model with classical kinase-only signaling is overly simplistic and does not describe reality...
2018: International Review of Cell and Molecular Biology
https://www.readbyqxmd.com/read/29773584/mechanisms-in-endocrinology-cell-cycle-regulation-in-adrenocortical-carcinoma
#2
Sofia Pereira, Mariana P Monteiro, Isabelle Bourdeau, Andre Lacroix, Duarte Pignatelli
Adrenocortical carcinomas are rather rare endocrine tumors that often have a poor prognosis. The reduced survival rate associated with these tumors is due to their aggressive biological behavior, combined with the scarcity of effective treatment options that are currently available. The recent identification of the genomic alterations present in ACC have provided further molecular mechanisms to develop consistent strategies for the diagnosis, prevention of progression and treatment of advanced ACCs. Taken together, molecular and genomic advances could be leading the way to develop personalized medicine in ACCs similarly to similar developments in lung or breast cancers...
May 17, 2018: European Journal of Endocrinology
https://www.readbyqxmd.com/read/29762647/maternal-low-protein-diet-impairs-prostate-growth-in-young-rat-offspring-and-induces-prostate-carcinogenesis-with-aging
#3
Sergio A A Santos, Ana C Camargo, Flávia B Constantino, Ketlin T Colombelli, Fernanda Mani, Jaqueline C Rinaldi, Suelen Franco, Luiz M F Portela, Bruno O S Duran, Wellerson R Scarano, Barry T Hinton, Sergio L Felisbino, Luis A Justulin
Carcinogenesis is frequently linked to genetic background, however, exposure to environmental risk factors has gained attention as the etiologic agent for several types of cancer, including prostate. The intrauterine microenvironment has been described as a preponderant factor for offspring health; and maternal exposure to insult has been linked to chronic disease in older offspring. Using a model of maternal exposure to low protein diet (LPD; 6% protein), we demonstrated that impairment of offspring rat prostatic growth on postnatal day (PND) 21 was associated with prostate carcinogenesis in older offspring (PND 540)...
May 14, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29759660/extensive-serum-biomarker-analysis-in-patients-with-nasopharyngeal-carcinoma
#4
Daoyuan Gong, Ziping Li, Rui Ding, Min Cheng, Huakun Huang, Aiping Liu, Mei Kang, Haijian He, Ying Xu, Jing Shao, Yong Wang, Chaohui Duan
Nasopharyngeal carcinoma (NPC) is a fast-growing cancer characterized by high occurrences of nodal and distant metastases and poor prognosis. It is therefore important to identify new serum biomarkers for the early diagnosis and prognostic prediction of this disease. The present study identifies biomarkers in NPC patient serum using a solid-phase antibody array detecting the expression profiles of 174 cytokines in a single experiment. ELISA was performed to validate the array results. The levels of TIMP-2, SELL, CCL24, MMP-1, MMP-3, IGF-I and IL-8 were significantly higher in serum from NPC patients, while the levels of MSP-alpha and HCC-4 were lower...
May 11, 2018: Cytokine
https://www.readbyqxmd.com/read/29735545/nuclear-igf-1r-interacts-with-regulatory-regions-of-chromatin-to-promote-rna-polymerase-ii-recruitment-and-gene-expression-associated-with-advanced-tumor-stage
#5
Tamara Aleksic, Nicki E Gray, Xiaoning Wu, Guillaume Rieunier, Eliot Osher, Jack Mills, Clare Verrill, Richard J Bryant, Cheng Han, Kathryn Hutchinson, Adam Lambert, Rajeev Kumar, Freddie C Hamdy, Ulrike Weyer-Czernilofsky, Michael Sanderson, Thomas Bogenrieder, Stephen Taylor, Valentine M Macaulay
Internalization of ligand-activated type 1 IGF receptor (IGF-1R) is followed by recycling to the plasma membrane, degradation or nuclear translocation. Nuclear IGF-1R reportedly associates with clinical response to IGF-1R inhibitory drugs, yet its role in the nucleus is poorly characterized. Here we investigated the significance of nuclear IGF-1R in clinical cancers and cell line models. In prostate cancers, IGF-1R was predominantly membrane-localized in benign glands, while malignant epithelium contained prominent internalized (nuclear/cytoplasmic) IGF-1R, and nuclear IGF-1R associated significantly with advanced tumor stage...
May 7, 2018: Cancer Research
https://www.readbyqxmd.com/read/29731967/anti-cachectic-effect-of-antrodia-cinnamomea-extract-in-lung-tumor-bearing-mice-under-chemotherapy
#6
Meng-Chuan Chen, Wen-Lin Hsu, Tz-Chong Chou
Skeletal muscle atrophy, the most characteristic feature of cancer cachexia, often occurs in patients with cancer undergoing chemotherapy. Antrodia cinnamomea (AC) a widely used edible medical fungus, exhibits hepatoprotective, anti-inflammatory and anticancer activities. In this study, we investigated whether combined treatment with the ethonolic extract of AC ameliorates cachexia symptoms, especially muscle wasting, in lung tumor-bearing mice treated with chemotherapy. Our results revealed that gemcitabine and cisplatin-induced severe body weight loss and skeletal muscle atrophy in the mice with cancer were greatly attenuated after AC extract administration...
April 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29731870/igf-1-induced-mmp-11-expression-promotes-the-proliferation-and-invasion-of-gastric-cancer-cells-through-the-jak1-stat3-signaling-pathway
#7
Chao Su, Wenchang Wang, Cunchuan Wang
The present study aimed to investigate the association between insulin-like growth factor-1 (IGF-1) and matrix metalloproteinase-11 (MMP-11) expression in gastric cancer (GC) and the underlying mechanisms in SGC-7901 cells. Reverse transcription-quantitative polymerase chain reaction analysis revealed that the expression of IGF-1 and MMP-11 was significantly upregulated in GC tissues compared with normal gastric tissue. Furthermore, IGF-1 significantly and dose-dependently promoted MMP-11. Western blotting revealed that the addition of IGF-1 to SGC-7901 cells led to an evident enhancement in signal transducer and activator of transcription 3 (STAT3), IGF-1R and Janus kinase 1 (JAK1) phosphorylation at 20 and 40 min...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29730021/obesity-and-breast-cancer-in-premenopausal-women-current-evidence-and-future-perspectives
#8
Daniela Laudisio, Giovanna Muscogiuri, Luigi Barrea, Silvia Savastano, Annamaria Colao
There is raising evidence reporting an increased incidence of breast cancer over the past decades. Every year approximately 1.4 million new cases of breast cancer are diagnosed worldwide, with a mortality rate of approximately 450,000/year. Out of these cases, 6.6% are diagnosed in premenopausal women with a median age at diagnosis of 40 years: in premenopausal women breast cancer seems to be more aggressive than in post-menopausal women. Obesity has been reported to increase the risk of developing breast cancer and to worsen the prognosis...
March 27, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29725374/decreased-expression-of-microrna-223-promotes-cell-proliferation-in-hepatocellular-carcinoma-cells-via-the-insulin-like-growth-factor-1-signaling-pathway
#9
Cheng Zhang, Jiamin Zhang
Hepatocellular carcinoma (HCC) is one of the most harmful types of cancer. Previous studies have demonstrated that microRNA (miR)-223 is downregulated in the serum and tumor tissue of patients with HCC. The present study aimed to investigate the regulatory role of miR-223 on insulin-like growth factor-1 receptor (IGF-1R) and downstream factors in HCC. The Hep3B cell line was transfected with miR-223 mimic and inhibitor. Following transfection, cell proliferation was analyzed using a cell counting kit 8 assay and cellular apoptosis was assessed using flow cytometry...
May 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29722920/prognostic-relevance-and-performance-characteristics-of-serum-igfbp-2-and-papp-a-in-women-with-breast-cancer-a-long-term-danish-cohort-study
#10
Ulrick Espelund, Andrew G Renehan, Søren Cold, Claus Oxvig, Lee Lancashire, Zhenqiang Su, Allan Flyvbjerg, Jan Frystyk
Measurement of circulating insulin-like growth factors (IGFs), in particular IGF-binding protein (IGFBP)-2, at the time of diagnosis, is independently prognostic in many cancers, but its clinical performance against other routinely determined prognosticators has not been examined. We measured IGF-I, IGF-II, pro-IGF-II, IGF bioactivity, IGFBP-2, -3, and pregnancy-associated plasma protein A (PAPP-A), an IGFBP regulator, in baseline samples of 301 women with breast cancer treated on four protocols (Odense, Denmark: 1993-1998)...
May 3, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29721213/anabolic-androgenic-steroids-and-carcinogenicity-focusing-on-leydig-cell-a-literature-review
#11
REVIEW
Monica Salerno, Orazio Cascio, Giuseppe Bertozzi, Francesco Sessa, Antonietta Messina, Vincenzo Monda, Luigi Cipolloni, Antonio Biondi, Aurora Daniele, Cristoforo Pomara
Anabolic androgenic steroids (AAS) are some of the most common drugs used among athletes, frequently in combination with resistance training, to improve physical performance or for aesthetic purpose. A great number of scientific reports showed the detrimental effects of anabolic androgenic steroids on different organs and tissues. In this literature review, we analyzed the AAS-mediated carcinogenicity, focusing on Leydig cell tumor. AAS-induced carcinogenicity can affect DNA transcription through two pathways...
April 10, 2018: Oncotarget
https://www.readbyqxmd.com/read/29716918/igf2-ir-igf1r-pathway-in-tumor-cells-and-myofibroblasts-mediates-resistance-to-egfr-inhibition-in-cholangiocarcinoma
#12
Javier Vaquero, Cindy Lobe, Sylvana Tahraoui, Audrey Clapéron, Martine Mergey, Fatiha Merabtene, Dominique Wendum, Cédric Coulouarn, Chantal Housset, Christèle Desbois-Mouthon, Francoise Praz, Laura Fouassier
PURPOSE: Cholangiocarcinoma (CCA) is a desmoplastic tumor of the biliary tree in which epidermal growth factor receptor (EGFR) is overexpressed and contributes to cancer progression. Although, EGFR has been envisaged as a target for therapy, treatment with tyrosine kinase inhibitors (TKI) such as erlotinib did not provide therapeutic benefit in patients with CCA, emphasizing the need to investigate resistance mechanisms against EGFR inhibition. EXPERIMENTAL DESIGN: Resistant CCA cells to EGFR inhibition were obtained upon long time exposure of cells with erlotinib...
May 1, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29716897/prospective-randomized-biomarker-study-of-metformin-and-lifestyle-intervention-for-prevention-in-obese-women-at-increased-risk-for-endometrial-cancer
#13
Melinda S Yates, Adriana M Coletta, Qian Zhang, Rosemarie E Schmandt, Meena Medepalli, Denise R Nebgen, Beth Soletsky, Andrea Milbourne, Erma Levy, Bryan M Fellman, Diana L Urbauer, Ying Yuan, Russell R Broaddus, Karen Basen-Engquist, Karen Lu
Obesity increases risk of endometrial cancer through dysregulation of estrogen and insulin signaling. The primary aim of this study was to evaluate the impact of metformin or lifestyle intervention on endometrial proliferation in postmenopausal obese women. Secondary aims included evaluating obesity-related biomarkers and adverse events experienced. Obese, postmenopausal women with pre-diabetes were randomized into four groups for a 16-week intervention using a 2 (metformin 1700 mg/day vs placebo) x 2 (lifestyle intervention vs no lifestyle intervention) factorial design...
May 1, 2018: Cancer Prevention Research
https://www.readbyqxmd.com/read/29712908/the-novel-hsa-mir-12528-regulates-tumourigenesis-and-metastasis-through-hypo-phosphorylation-of-akt-cascade-by-targeting-igf-1r-in-human-lung-cancer
#14
Seong Ho Jeon, Jung Ki Yoo, Chang Min Kim, Eun Su Lim, So Jeong Lee, Ji Min Lee, Seung-Hun Oh, Jin Kyeoung Kim
Lung cancer cases are increasing yearly; however, few novel therapeutic strategies for treating this disease have been developed. Here the dysregulation between microRNAs and oncogenes or tumour-suppressor genes forms a close connection-loop to the development or progression in human lung carcinogenesis. That is, the relationship between microRNAs and carcinogenic mechanism may find the critical clue to improve the treatment efficacy. Accordingly, we identified and characterised a novel microRNA, hsa-miR-12528, in A549 cells...
May 1, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29692348/effects-of-insulin-and-analogues-on-carcinogen-induced-mammary-tumours-in-high-fat-fed-rats
#15
Yusaku Mori, Eunhyoung Ko, Rudolf Furrer, Linda C Qu, Stuart C Wiber, George I Fantus, Mario Thevis, Alan Medline, Adria Giacca
It is not fully clarified whether insulin glargine, an analogue with a high affinity for insulin-like growth factor 1 receptor (IGF-1R), increases the risk for cancers that abundantly express IGF-1R such as breast cancer or some types of breast cancer. To gain insight into this issue, female Sprague-Dawley rats fed a high-fat diet were given the carcinogen N-Methyl-N-nitrosourea and randomly assigned to vehicle (control), NPH (unmodified human insulin), glargine, or detemir (n=30 per treatment). Insulins were given subcutaneously (15 U kg-1 day-1) 5 days a week...
April 24, 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29679075/apkc%C3%AE-dependent-repression-of-yap-is-necessary-for-functional-restoration-of-irradiated-salivary-glands-with-igf-1
#16
Alejandro M Chibly, Wen Yu Wong, Maricela Pier, Hongqiang Cheng, Yongxin Mu, Ju Chen, Sourav Ghosh, Kirsten H Limesand
Xerostomia and salivary hypofunction often result as a consequence of radiation therapy for head and neck cancers, which are diagnosed in roughly 60,000 individuals every year in the U.S. Due to the lack of effective treatments for radiation-induced salivary hypofunction, stem cell-based therapies have been suggested to regenerate the irradiated salivary glands. Pharmacologically, restoration of salivary gland function has been accomplished in mice by administering IGF-1 shortly after radiation treatment, but it is not known if salivary stem and progenitor cells play a role...
April 20, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29672153/p21-activated-kinase4-in-pancreatic-acini-is-activated-by-gi-hormones-growth-factors-by-novel-signaling-and-is-needed-to-stimulate-secretory-growth-cascades
#17
Irene Ramos-Alvarez, Robert T Jensen
p21-activated kinases(PAKs) are highly conserved serine/threonine protein kinases, which are divided into two groups:Group-I(PAKs1-3) and Group-II(PAKs4-6). In various tissues, Group-II PAKs play important roles in cytoskeletal dynamics, cell growth as well as neoplastic development/progression. However, little is known about Group-II PAKs role in a number of physiological events including their ability to be activated by gastrointestinal(GI) hormones/neurotransmitters/growth-factors(GFs). We used rat pancreatic acini to explore the ability of GI-hormones/neurotransmitters/GFs to activate Group-II-PAKs and the signaling cascades involved...
April 19, 2018: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29663879/anti-cancer-effects-of-metformin-recent-evidences-for-its-role-in-prevention-and-treatment-of-cancer
#18
Masoumeh Kheirandish, Hamidreza Mahboobi, Maryam Yazdanparast, Warda Kamal, Mohammad A Kamal
Metformin is widely used for the management of type 2 diabetes mellitus (T2DM). Recently growing evidence has shown its anti-cancer effects. The results are mainly obtained from observational studies and thus, little information is available concerning the mechanisms of action. Adenosine monophosphate (AMP)-activated protein kinase (AMPK) plays an important role in the mechanism of action of metformin. The anti-cancer mechanisms of metformin include direct and indirect effects. The direct effects of metformin include AMPK-independent and AMPK-dependent effects, whereas the decrease in glucose level, hyperinsulinemia, and Insulin-like growth factor 1 (IGF-1) level was considered its indirect effects...
April 16, 2018: Current Drug Metabolism
https://www.readbyqxmd.com/read/29650947/hsa-let-7c-controls-the-committed-differentiation-of-igf-1-treated-mesenchymal-stem-cells-derived-from-dental-pulps-by-targeting-igf-1r-via-the-mapk-pathways
#19
Gen-Xia Liu, Shu Ma, Yao Li, Yan Yu, Yi-Xiang Zhou, Ya-Die Lu, Lin Jin, Zi-Lu Wang, Jin-Hua Yu
The putative tumor suppressor microRNA let-7c is extensively associated with the biological properties of cancer cells. However, the potential involvement of let-7c in the differentiation of mesenchymal stem cells has not been fully explored. In this study, we investigated the influence of hsa-let-7c (let-7c) on the proliferation and differentiation of human dental pulp-derived mesenchymal stem cells (DPMSCs) treated with insulin-like growth factor 1 (IGF-1) via flow cytometry, CCK-8 assays, alizarin red staining, real-time RT-PCR, and western blotting...
April 13, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29644076/lost-in-translation-the-3-utr-of-igf1r-as-an-ancient-long-noncoding-rna
#20
Avantika Mainieri, David Haig
Background and objectives: The insulin-like growth factor (IGF) signaling system is a major arena of intragenomic conflict over embryonic growth between imprinted genes of maternal and paternal origin and the IGF type 1 receptor (IGF1R) promotes proliferation of many human cancers. The 3'-untranslated region (3'-UTR) of the mouse Igf1r mRNA is targeted by miR-675-3p derived from the imprinted H19 long noncoding RNA. We undertook a comparative sequence analysis of vertebrate IGF1R 3'-UTRs to determine the evolutionary history of miR-675 target sequences and to identify conserved features that are likely to be involved in post-transcriptional regulation of IGF1R translation...
2018: Evolution, Medicine, and Public Health
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