Napoleon Navarro Tito

Napoleon Navarro Tito
Universidad Autónoma de Guerrero · Facultad de Ciencias Químico Biológicas

PhD

About

46
Publications
6,632
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595
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September 2013 - September 2020
Universidad Autónoma de Guerrero
Position
  • Professor (Full)

Publications

Publications (46)
Article
Haematoxylum brasiletto (Fabaceae) is a wild plant from Guerrero, used in traditional medicine. However, there is little scientific information about anti-migratory and antioxidant activities. The aim of this study was to evaluate the anti-migratory and anti-proliferative activities of the ethanolic extract of heartwood of H. brasiletto (HB) and th...
Article
Full-text available
Leptin is a cytokine-like hormone that functions as a link between obesity and breast cancer (BC). Leptin treatment induces Epithelial to Mesenchymal Transition (EMT) in BC cell lines. In non-tumoral breast epithelial MCF10A cells, acute leptin treatment induces partial EMT. However, the effect of chronic leptin treatment on EMT in non-tumorigenic...
Article
The sugarcane aphid, Melanaphis sacchari Zehntner (Hemiptera: Aphididae), is the main pest of sorghum, Sorghum bicolor L. Moench (Poaceae), in Mexico. To control this insect, farmers currently use synthetic chemical insecticides, which are toxic to humans and biodiversity. However, natural products are a promising potential source of safer alternat...
Article
Full-text available
Cervical cancer is characterized by the cellular transformation caused by Human Papillomavirus (HPV), favoring cell proliferation, migration, invasion, and metastasis. Cervical cancer is conventionally treated with radiation therapy, and chemotherapy focused on the destruction of tumor cells. However, chemoresistance and low selectivity between tum...
Article
Caesalpinia sappan and Haematoxylum brasiletto belong to the Fabaceae family, predominantly distributed in Southeast Asia and America. The isoflavonoid brazilin has been identified from the bark and heartwood of these plants. This review summarizes the studies describing the biological activities of these plants and brazilin. Mainly, brazilin prote...
Article
Cervical cancer is characterized by the cellular transformation caused by Human Papillomavirus (HPV), favoring cell proliferation, migration, invasion, and metastasis. Cervical cancer is conventionally treated with radiation therapy, and chemotherapy focused on the destruction of tumor cells. However, chemoresistance and low selectivity between tum...
Article
The acquired ability to induce the formation of a functional vasculature is a hallmark of cancer. Blood vessels in tumors are formed through various mechanisms, among the most important in cancer biology, angiogenesis, and vasculogenic mimicry have been described. Leptin is one of the main adipokines secreted by adipocytes in normal breast tissue a...
Article
Copper (Cu) is an essential micronutrient required for the activity of redox‐active enzymes involved in critical metabolic reactions, signaling pathways, and biological functions. Transporters and chaperones control Cu ion levels and bioavailability to ensure proper subcellular and systemic Cu distribution. Intensive research has focused on underst...
Article
Full-text available
Long non-coding RNAs (lncRNAs) are single-stranded RNA biomolecules with a length of >200 nt, and they are currently considered to be master regulators of many pathological processes. Recent publications have shown that lncRNAs play important roles in the pathogenesis and progression of insulin resistance (IR) and glucose homeostasis by regulating...
Article
Full-text available
Ficus obtusifolia and Haematoxylum brasiletto are traditional Mexican medicine plants used to treat different types of diseases. Both species belong to genera recognized as a potential source of compounds with antioxidant and antiproliferative activity. This study focuses on identifying the organic fractions of hexane (Hx), dichloromethane (DCM), a...
Article
Full-text available
Metabolic reprogramming is considered one of the hallmarks in cancer and is characterized by increased glycolysis and lactate production, even in the presence of oxygen, which leads the cancer cells to a process called “aerobic glycolysis” or “Warburg effect”. The E6 and E7 oncoproteins of human papillomavirus 16 (HPV 16) favor the Warburg effect t...
Article
Cancer is a public health problem worldwide, and one of the crucial steps within tumor progression is the invasion and metastasis of cancer cells, which are directly related to cancer‐associated deaths in patients. Recognizing the molecular markers involved in invasion and metastasis is essential to find targeted therapies in cancer. Interestingly,...
Article
Full-text available
Autophagy is an intracellular recycling process active in eukaryotic cells that involves the formation of an autophagosome which delivers cytoplasmic components to the lysosome for degradation. This process occurs at low rates under basal conditions, but it can be induced by diverse types of stress such as starvation, hypoxia, metabolic disorders o...
Article
Full-text available
Oxidative stress causes several chronic diseases including cancer. Some chemotherapeutic agents are not selective against tumor cells, causing oxidative stress in non-tumor cells. This study aimed to evaluate the cytotoxic effect of acetone extract of Ficus crocata(Miq.) Mart. ex Miq. (F. crocata) leaves (Ace-EFc) on cervical cancer cells, as well...
Article
Full-text available
Leptin is a hormone secreted mainly by adipocytes; physiologically, it participates in the control of appetite and energy expenditure. However, it has also been linked to tumor progression in different epithelial cancers. In this review, we describe the effect of leptin on epithelial–mesenchymal transition (EMT) markers in different study models, i...
Article
Cervical cancer (CC) is the fourth most common cancer in women worldwide. Therefore , it is very important to understand cervical carcinogenesis, as well as the molecular mechanisms and signaling pathways involved in this process, in order to develop new strategies that contribute to diagnosis, prognosis and treatment of cervical cancer. Infection...
Article
Full-text available
Background The repressor element 1-silencing transcription factor (REST) is a regulator of gene expression, and the Ras association domain family member 1 A (RASSF1A) is an important tumor suppressor gene involved in cancer development. Although extensive characterization of the roles of REST and RASSF1A in cancer development have been reported in...
Article
Cervical cancer (CC) is the fourth most common cancer in women worldwide. Therefore, it is very important to understand cervical carcinogenesis, as well as the molecular mechanisms and signaling pathways involved in this process, in order to develop new strategies that contribute to diagnosis, prognosis and treatment of cervical cancer. Infection b...
Article
Full-text available
Background: Some species of the Ficus genus show pharmacological activity, including antiproliferative activity, in cell lines of several cancer Types. ficus crocata is distributed in Mexico and used in traditional medicine, as it is believed to possess anti-inflammatory, analgesic, and antioxidant properties. However, as of yet, there are no scie...
Article
Full-text available
Background: Type 2 diabetes mellitus (T2DM) and periodontitis are chronic inflammatory diseases with a bidirectional relationship. The uncontrolled levels of glucose in T2DM patients change the pathophysiology and balance of inflammatory mediators. Matrix Metalloproteinase-2 (MMP-2) is a zinc-dependent endopeptidase that is responsible for tissue...
Article
Full-text available
Breast cancer is the most common invasive neoplasia, and the second leading cause of the cancer deaths in women worldwide. Mammary tumorigenesis is severely linked to obesity, one potential connection is leptin. Leptin is a hormone secreted by adipocytes, which contributes to the progression of breast cancer. Cell migration, metalloproteases secret...
Article
Full-text available
Introduction: Leptin is a hormone secreted by adipocytes that has been associated with the epithelial-mesenchymal transition (EMT). Additionally, leptin promotes the migration and invasion of mammary epithelial cells through the activation of FAK and Src kinases, which are part of a regulatory complex of signaling pathways that promotes the express...
Preprint
Full-text available
Leptin is one of the main adipokines secreted in breast tissue, and has been associated with epithelial-mesenchymal transition (EMT) and tumor progression in breast cancer. Leptin promotes EMT, cell migration and invasion in epithelial breast cells, leading to tumor progression. However, the molecular mechanism that underlies these events is not fu...
Article
Full-text available
Leptin is one of the main adipokines secreted in breast tissue, and has been associated with epithelial-mesenchymal transition (EMT) and tumor progression in breast cancer. Leptin promotes EMT, cell migration and invasion in epithelial breast cells, leading to tumor progression. However, the molecular mechanism that underlies these events is not fu...
Article
Full-text available
Epithelial–mesenchymal transition (EMT) is a reversible cellular process, characterized by changes in gene expression and activation of proteins, favoring the trans-differentiation of the epithelial phenotype to a mesenchymal phenotype. This process increases cell migration and invasion of tumor cells, progression of the cell cycle, and resistance...
Preprint
Full-text available
Breast cancer is the most common invasive neoplasia, and the second leading cause of death associated with cancer in women worldwide. Mammary tumorigenesis is severely linked to obesity, the potential connection is leptin. Leptin is a hormone secreted by adipocytes, which contributes to the progression of breast cancer. Cell migration, metalloprote...
Article
Full-text available
Introducción. Leptina es una hormona secretada por los adipocitos que se ha relacionado con el proceso de transición epitelio-mesenquimal, promueve la migración e invasión en células de epitelio mamario a través de la activación de las cinasas FAK y Src, un complejo regulador de vías de señalización que favorecen la expresión de proteínas relaciona...
Article
Full-text available
RESUMEN Actualmente la obesidad y el cáncer mamario repre-sentan un importante problema de salud pública dada la elevada frecuencia de ambas condiciones en la población a nivel mundial. Esta revisión tiene como objetivo el presentar información actual sobre la obesidad como factor de riesgo contribuyente con el inicio y progresión del cáncer de mam...
Article
Full-text available
Actualmente la obesidad y el cáncer mamario representan un importante problema de salud pública dada la elevada frecuencia de ambas condiciones en la población a nivel mundial. Esta revisión tiene como objetivo el presentar información actual sobre la obesidad como factor de riesgo contribuyente con el inicio y progresión del cáncer de mama a travé...
Article
Full-text available
Leptin is an adipokine that is overexpressed in obese and overweight people. Interestingly, women with breast cancer present high levels of leptin and of its receptor ObR. Leptin plays an important role in breast cancer progression due to the biological processes it participates in, such as epithelial–mesenchymal transition (EMT). EMT consists of a...
Article
Abstract RNA-based multi-target therapies focused in the blocking of signaling pathways represent an attractive approach in cancer. Here, we uncovered a miR-204 cooperative targeting of multiple signaling transducers involved in vasculogenic mimicry (VM). Our data showed that invasive triple negative MDA-MB-231 and Hs-578T breast cancer cells, but...
Article
Full-text available
Background: Cervical cancer (CC) is the fourth cause of mortality by neoplasia in women worldwide. The use of immunomarkers is an alternative tool to complement currently used algorithms for detection of cancer, and to improve selection of therapeutic schemes. Aberrant expression of Ezrin and E-cadherin play an important role in tumor invasion. In...
Article
Full-text available
Epithelial-mesenchymal transition (EMT) is a biological process involved in different steps of tumor progression and metastasis of breast cancer cells. Epidemiological studies suggest a link between obesity and the progression of breast cancer. Leptin is an adipocyte-secreted hormone which can promote cell migration and invasion as part of EMT in b...
Research
Full-text available
El cáncer de mama (CaMa) es la neoplasia invasiva más común y la principal causa de muerte en mujeres a nivel mundial. La leptina es una hormona secretada principalmente por los adipocitos y cuyos niveles de expresión están incrementados en suero de personas con obesidad. Diversos estudios clínicos y experimentales, indican un papel importan...
Poster
Arachidonic acid (AA) is a common dietary n-6 cis polyunsaturated fatty acid that under physiological conditions is present in an esterified form in cell membrane phospholipids, and it might be present in the extracellular microenvironment. AA and its metabolites are implicated in FAK activation and cell migration in MDA-MB-231 breast cancer cells,...
Article
Full-text available
Background: Epidemiological studies and animal models suggest a link between high levels of dietary fat intake and an increased risk of developing breast cancer. Particularly, free fatty acids (FFAs) are involved in several processes, including proliferation, migration and invasion, in breast cancer cells. Linoleic acid (LA) is a dietary n-6 polyu...
Article
Arachidonic acid (AA) is a common dietary n-6 cis polyunsaturated fatty acid that under physiological conditions is present in an esterified form in cell membrane phospholipids, and it might be present in the extracellular microenvironment. AA and its metabolites are implicated in FAK activation and cell migration in MDA-MB-231 breast cancer cells,...
Article
CD9 is a member of the tetraspanin family and is widely expressed in the plasma membrane of several cell types as well as malignant cells. CD9 associates with a number of transmembrane proteins, which facilitates biological processes, including cell signaling, adhesion, migration and proliferation. DDR1 is activated by native type IV collagen and o...
Article
Full-text available
Epidemiological and animal studies suggest an association between dietary fatty acids and an increase risk of developing breast cancer. Obesity, which is characterized by hyperlipidemia and an elevation of circulating free fatty acids (FFAs), is also associated with enhanced cancer risk. In breast cancer cells, the FFA oleic acid (OA) induces migra...
Article
Epidemiological studies and animal models suggest an association between high levels of dietary fat intake and an increased risk of breast cancer. Cancer progression requires the development of metastasis, which is characterized by an increase in cell motility and invasion. Epithelial-to-mesenchymal transition (EMT) is a process, by which epithelia...
Article
An association between dietary fatty, obesity and an increased risk of developing breast cancer has been suggested. In breast cancer cells, free fatty acids (FFAs) mediate biological effects including cell proliferation and ERK1/2 activation. However, the contribution of FFAs to tumor progression and metastasis through the regulation of cell migrat...
Article
Arachidonic acid (AA) is a common dietary n-6 polyunsaturated fatty acid that is present in an esterified form in cell membrane phospholipids, and it might be present in the extracellular microenvironment. In particular, AA promotes MAPK activation and mediates the adhesion of MDA-MB-435 breast cancer cells to type IV collagen. However, the signal...

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Projects (4)
Project
Con el objetivo de reunir a investigadores, profesionales y estudiantes del área de la salud, para difundir, discutir y fomentar la Vinculación Científica Transdisciplinaria con base al Desarrollo Sostenible para fortalecer líneas de investigación relacionadas con Enfermedades Transmisibles y no Transmisibles de mayor prevalencia. https://ceci.unison.mx/#
Project
Evaluate biological activity from plant compounds on tumor cells