0000000001107741

AUTHOR

Luiza Kanczuga-koda

showing 2 related works from this author

Expression of the obesity hormone leptin and its receptor correlates with hypoxia-inducible factor-1 alpha in human colorectal cancer.

2007

Background: The obesity hormone, leptin, has been found to play a role in development and proliferation of normal and malignant tissues. Leptin activity is mediated through the leptin receptor (ObR) that is often expressed in different human cancer cells. Previously, we found that the expression of leptin and ObR can be stimulated by hypoxia-mimetic agents. The aim of this study was to analyze the abundance of and relationships among leptin, ObR and hypoxia-inducible factor-1α (HIF-1α, transcriptional regulator) in human colorectal cancer. Materials and methods: We investigated the expression of leptin, ObR and HIF-1 a in colorectal cancer specimens from 135 patients who underwent curative …

AdultLeptinMalemedicine.medical_specialtyColorectal cancerAdipokineReceptors Cell SurfaceInternal medicinemedicineHumansObesityReceptorAgedAged 80 and overLeptin receptorbusiness.industryLeptindigestive oral and skin physiologyHematologyMiddle Agedmedicine.diseaseHypoxia-Inducible Factor 1 alpha SubunitObesityUp-RegulationGene Expression Regulation NeoplasticEndocrinologyOncologyHypoxia-inducible factorsDisease ProgressionReceptors LeptinFemalebusinessColorectal Neoplasmshormones hormone substitutes and hormone antagonistsHormoneAnnals of oncology : official journal of the European Society for Medical Oncology
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Increased expression of leptin and the leptin receptor as a marker of breast cancer progression: possible role of obesity-related stimuli.

2006

Abstract Purpose: Recent in vitro studies suggested that the autocrine leptin loop might contribute to breast cancer development by enhancing cell growth and survival. To evaluate whether the leptin system could become a target in breast cancer therapy, we examined the expression of leptin and its receptor (ObR) in primary and metastatic breast cancer and noncancer mammary epithelium. We also studied whether the expression of leptin/ObR in breast cancer can be induced by obesity-related stimuli, such as elevated levels of insulin, insulin-like growth factor-I (IGF-I), estradiol, or hypoxic conditions. Experimental Design: The expression of leptin and ObR was examined by immunohistochemistry…

LeptinCancer ResearchER-BETAmedicine.medical_treatmentHYPOXIA-INDUCIBLE FACTOR-1NeoplasmsTumor Cells CulturedBreastInsulin-Like Growth Factor Iskin and connective tissue diseasesReceptorAged 80 and overEstradiolIGF-I RECEPTORCELL-LINEReverse Transcriptase Polymerase Chain ReactionLeptindigestive oral and skin physiologyCarcinoma Ductal BreastMiddle AgedMetastatic breast cancerINSULINCell HypoxiaESTROGENOncologyDisease ProgressionIGF-I RECEPTOR; HYPOXIA-INDUCIBLE FACTOR-1; OB GENE; GROWTH-FACTOR; CELL-LINE; ER-BETA; ESTROGEN; ALPHA; INSULIN; MCF-7Receptors LeptinFemaleOB GENEhormones hormone substitutes and hormone antagonistsAdultmedicine.medical_specialtyGROWTH-FACTORBreast NeoplasmsReceptors Cell SurfaceBreast cancerInternal medicinemedicineBiomarkers TumorHumansObesityAutocrine signallingAgedLeptin receptorbusiness.industryInsulinmedicine.diseaseALPHAEndocrinologyTumor progressionCase-Control StudiesMCF-7business
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