Carlos D. Figueroa

ORCID: 0000-0002-5399-7890
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About
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Research Areas
  • Coagulation, Bradykinin, Polyphosphates, and Angioedema
  • Mast cells and histamine
  • Blood Coagulation and Thrombosis Mechanisms
  • Estrogen and related hormone effects
  • Electrolyte and hormonal disorders
  • Renin-Angiotensin System Studies
  • Immunotherapy and Immune Responses
  • Peptidase Inhibition and Analysis
  • Ion channel regulation and function
  • Ion Transport and Channel Regulation
  • Neuroendocrine regulation and behavior
  • Cancer, Hypoxia, and Metabolism
  • Apelin-related biomedical research
  • Urticaria and Related Conditions
  • Histone Deacetylase Inhibitors Research
  • Asthma and respiratory diseases
  • Pregnancy and preeclampsia studies
  • Receptor Mechanisms and Signaling
  • Beetle Biology and Toxicology Studies
  • Enzyme function and inhibition
  • Pancreatic function and diabetes
  • Immune Response and Inflammation
  • HER2/EGFR in Cancer Research
  • Autoimmune Bullous Skin Diseases
  • Metabolism, Diabetes, and Cancer

Austral University of Chile
2015-2024

Centro de Estudios Científicos
2018-2020

University of Concepción
2006

Goethe University Frankfurt
2001-2005

Inserm
2004

La Jolla Institute For Molecular Medicine
2004

University of California, San Diego
2004

University of Michigan–Ann Arbor
2001-2002

Frequentis (Germany)
2001

Johannes Gutenberg University Mainz
2001

Abstract It has been proposed that the enhanced metabolic activity of tumor cells is accompanied by an increased expression facilitative hexose transporters (GLUTs). However, a previous immunohistochemical analysis GLUT1 in 154 malignant human neoplasms failed to detect isoform 87 tumors. We used 146 normal tissues and 215 samples reassess expression. A similar number were compare GLUT2–6 9. The classical GLUT1–5 different was confirmed, however, we unable GLUT2 pancreatic islet cells. GLUT6...

10.1002/jcp.20606 article EN Journal of Cellular Physiology 2006-03-07

Free accessAbstractFirst published February 1995Probing for the bradykinin B2 receptor in rat kidney by anti-peptide and anti-ligand antibodies.C D Figueroa, C B Gonzalez, […], S Grigoriev, A Abd Alla, M Haasemann, K Jarnagin, W Müller-Esterl+4-4View all authors affiliationsVolume 43, Issue 2https://doi.org/10.1177/43.2.7822771

10.1177/43.2.7822771 article EN Journal of Histochemistry & Cytochemistry 1995-02-01

The Cl– channel ClC-2 is expressed in transporting epithelia and has been proposed as an alternative route for efflux that might compensate the malfunction of CFTR cystic fibrosis. There controversy concerning cellular membrane location ClC-2, particularly intestinal tissue. aim this paper to resolve by immunolocalization studies using tissues from knockout animals control, ascertaining sorting model epithelial cells exploring possible molecular signals involved targeting. was exclusively...

10.1242/jcs.02525 article EN Journal of Cell Science 2005-09-09

Abstract Kinins are biologically active peptides that powerful mediators of cellular inflammation. They mimic the cardinal signs inflammation by inducing vasodilatation and increasing vascular permeability pain. Neutrophils chemoattracted to sites several stimuli. However, evidence concerning chemotactic effect kinin has been contradictory. We analyzed B1 receptor agonists on neutrophils isolated from peripheral blood human healthy subjects. Chemotaxis was performed using migration under...

10.1189/jlb.1205744 article EN Journal of Leukocyte Biology 2006-05-02

Intestinal fluid secretion is driven by apical membrane, cystic fibrosis transmembrane conductance regulator (CFTR)‐mediated efflux of Cl– that concentrated in cells basolateral Na + −K −2Cl– cotransporters (NKCC1). An absolute requirement for the parallel activation K channels which maintain a membrane potential sustains anion secretion. Both cAMP and Ca 2+ are intracellular signals intestinal The channel involved cAMP‐dependent has been identified as KCNQ1–KCNE3 complex, but identity...

10.1113/jphysiol.2007.134387 article EN The Journal of Physiology 2007-06-22

Abstract Proinflammatory peptides known as kinins activate the human neutrophil and induce release of its primary tertiary granules. During activation degranulation, MMP-9 MPO are released into extracellular space to propagate inflammatory disorders. As kinin major participants in acute responses, G-protein-coupled B1R mediates chemotaxis neutrophils, we examined enzymes by agonist LDBK determined signaling pathways that may regulate this cellular effect. Cytochalasin-treated -untreated...

10.1189/jlb.0109012 article EN Journal of Leukocyte Biology 2009-07-29

Kallikrein-related peptidases (KLKs) are a family of serine proteases that when dysregulated may contribute to neuroinflammation and neurodegeneration. In the present review article, we describe what is known about their physiological pathological roles with an emphasis on KLK6 KLK8, two KLKs highly expressed in adult central nervous system (CNS). Altered expression activity have been linked brain physiology development multiple sclerosis. On other hand, altered levels serum people affected...

10.3389/fncel.2020.00166 article EN cc-by Frontiers in Cellular Neuroscience 2020-06-23

GPER-1 is a novel membrane sited G protein-coupled estrogen receptor. Clinical studies have shown that patients suffering an receptor α (ERα)/GPER-1 positive, breast cancer lower survival rate than those who developed ERα-positive/GPER-1 negative tumors. Moreover, absence of improves the prognosis treated with tamoxifen, most used selective modulator to treat ERα-positive cancer. MCF-7 cells were chronically 1000 nM tamoxifen investigate its effect on protein expression, cell proliferation...

10.3389/fendo.2020.563165 article EN cc-by Frontiers in Endocrinology 2020-09-30

The principal function of the colon in fluid homeostasis is absorption NaCl and water. Apical membrane Na + channels, /H Cl − /HCO[Formula: see text] exchangers, have all been postulated to mediate entry into colonocytes. identity basolateral exit pathway for unknown. We previously demonstrated presence ClC-2 transcript guinea pig intestine. Now we explore more detail, tissue cellular distribution chloride channel distal by situ hybridization immunohistochemistry. patch-clamp technique was...

10.1152/ajpgi.00158.2002 article EN AJP Gastrointestinal and Liver Physiology 2002-10-01

Angiogenesis gene therapy with human tissue kallikrein (hTK) has shown promise for ischemic disease. The present study was undertaken to (1) assess an optimal transfer modality, (2) clarify hTK angiogenic pathways, and (3) discount possible side effects.The transferred murine adductors by increasing doses of adenovirus (Ad.hTK). Heterologous protein production evaluated ELISA immunohistochemistry. Structural functional characteristics hTK-induced neovascularization were assessed. Muscular...

10.1161/01.cir.0000142051.36244.83 article EN Circulation 2004-09-14

Current evidence suggests a functional and biochemical link between the renin kallikrein systems. The purpose of this work was to study localization along human nephron elucidate whether there exists an anatomical base for such interrelation. Serial sections kidney tissue were stained by immunocytochemical methods with antisera against kallikrein. Kallikrein immunostaining observed exclusively in segments distal lying cortical labyrinths forming arcades its portion. Consistently tubules...

10.1093/ajh/1.3.269 article EN American Journal of Hypertension 1988-07-01

-Bradykinin, a major vasodilator peptide, plays an important role in the local regulation of blood pressure, flow, and vascular permeability; however, cellular distribution bradykinin B(2) receptor cardiovascular system is not precisely known. Immunoblot analysis with anti-peptide antibody to or chemical cross-linkage [(125)I]Tyr(0)-bradykinin revealed band 69+/-3 kDa at varying intensity homogenates endothelium tunica media rat aorta endocardium. Immunostaining showed that abundant...

10.1161/01.hyp.37.1.110 article EN Hypertension 2001-01-01
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