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dialyzable leukocyte extracts

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https://www.readbyqxmd.com/read/29091133/histopathology-of-murine-toxoplasmosis-under-treatment-with-dialyzable-leukocyte-extract
#1
Beatriz Eugenia Fuentes-Castro, Juan Gerardo Reyes-García, María Teresa Valenzuela-Vargas, Federico Martínez-Gómez
BACKGROUND: Dialyzable leukocyte extracts (DLEs) contain molecules smaller than 10 kDa with biological activity in receptor organisms. Primarily, they participate in the regulation of the Th1 immune response, which is essential for the control of several intracellular infections, such as toxoplasmosis. This disease is associated with congenital infection, encephalitis or systemic infections in immunocompromised individuals. The clinical course of this infection fundamentally depends on a well-regulated immune response and timely treatment with the appropriate drugs...
November 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28707490/transferon%C3%A2-a-peptide-mixture-with-immunomodulatory-properties-is-not-immunogenic-when-administered-with-various-adjuvants
#2
Sandra Avila, Leslie Muñoz-García, Said Vázquez-Leyva, Nohemí Salinas-Jazmín, Emilio Medina-Rivero, Lenin Pavón, Gabriela Mellado-Sánchez, Rommel Chacón-Salinas, Sergio Estrada-Parra, Luis Vallejo-Castillo, Sonia Mayra Pérez-Tapia
Transferon, a human dialyzable leukocyte extract (hDLE), is a biotherapeutic that comprises a complex mixture of low-molecular-weight peptides (< 10 kDa) and is used to treat diseases with an inflammatory component. Some biotherapeutics, including those composed of peptides, can induce anti-drug antibodies (ADA) that block or diminish their therapeutic effect. Nevertheless, few studies have evaluated peptide-derived drug immunogenicity. In this study, the immunogenicity of Transferon was examined in a murine model during an immunization scheme using the following adjuvants: Al(OH)3, incomplete Freund's adjuvant (IFA), or Titermax Gold...
December 2017: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/28386549/anti-inflammatory-effect-of-dialyzable-leukocyte-extract-in-autoimmune-prostatitis-evaluation-in-animal-model
#3
Carlos Pérez-Alvarado, Consuelo Gómez, Miguel Reyes, Mario García, Elizabeth Pérez, Carlos Pérez de la Mora, Virginia Sanchez, D Guillermo Pérez Ishiwara
Objective. To evaluate the anti-inflammatory properties of Dialyzable Leukocyte Extract (DLE) in a murine model of chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS). Methods. Histopathological characterization, prostatein Enzyme-Linked Immunosorbent Assay, and immunohistochemical analysis for CD45, TNF-α, IFN-γ, IL-6, IL-17, and IL-4 molecules were done in prostatic Wistar rats treated with DLE, placebo, or Dexamethasone. Results. Histopathological analysis of animals induced to prostatitis showed inflammatory infiltrate, mainly constituted by leucocytes and mast cells as well as Benign Prostatic Hyperplasia...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28101208/effect-of-bovine-dialyzable-leukocyte-extract-on-induction-of-cell-differentiation-and-death-in-k562-human-chronic-myelogenous-leukemia-cells
#4
Crystel A Sierra-Rivera, Moisés A Franco-Molina, Edgar Mendoza-Gamboa, Pablo Zapata-Benavides, Jesús Santaolalla-Tapia, Erika E Coronado-Cerda, Reyes S Tamez-Guerra, Cristina Rodríguez-Padilla
Differentiation induction therapy is an attractive approach in leukemia treatment due to the fact that in blast crisis stage, leukemic cells lose their differentiation capacity. Therefore, it has been proposed as a therapeutic strategy to induce terminal differentiation of leukemic blast cells into a specific lineage, leading to prevention of high proliferation rates. The aim of the present study was to demonstrate the potential of cell differentiation and death induced by bovine dialyzable leukocyte extract (bDLE) in the K562 cell line...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/27878284/antitumor-effect-of-the-combination-of-manumycin%C3%A2-a-and-immodin-is-associated-with-antiplatelet-activity-and-increased-granulocyte-tumor-infiltration-in-a-4t1-breast-tumor-model
#5
Peter Solár, Veronika Sačková, Gabriela Hrčková, Vlasta Demečková, Monika Kassayová, Bianka Bojková, Dagmar Mudroňová, Soňa Gancarčíková, Rastislav Jendželovský, Peter Fedoročko
Manumycin A is a natural antibiotic isolated from Streptomyces parvulus with broad range of biological activities including antineoplastic activity in several in vitro and in vivo cancer models. Immodin [dialyzable leukocyte extract (DLE)] is a dialysate released from disintegrated blood leukocytes of healthy donors which exerts immunonormalizing effects on cell-mediated immune responses. The aim of the present study was to explore the antitumor potential of the combination of manumycin A and Immodin in an experimental breast cancer model...
January 2017: Oncology Reports
https://www.readbyqxmd.com/read/27847830/early-differentiation-of-human-cd11c-nk-cells-with-%C3%AE-%C3%AE-t-cell-activation-properties-is-promoted-by-dialyzable-leukocyte-extracts
#6
Dalia Ramírez-Ramírez, Eduardo Vadillo, Lourdes Andrea Arriaga-Pizano, Héctor Mayani, Sergio Estrada-Parra, Marco Antonio Velasco-Velázquez, Sonia Mayra Pérez-Tapia, Rosana Pelayo
Reconstitution of the hematopoietic system during immune responses and immunological and neoplastic diseases or upon transplantation depends on the emergent differentiation of hematopoietic stem/progenitor cells within the bone marrow. Although in the last decade the use of dialyzable leukocyte extracts (DLE) as supportive therapy in both infectious and malignant settings has increased, its activity on the earliest stages of human hematopoietic development remains poorly understood. Here, we have examined the ability of DLE to promote replenishment of functional lymphoid lineages from CD34(+) cells...
2016: Journal of Immunology Research
https://www.readbyqxmd.com/read/27795217/-determination-and-analysis-of-protein-profile-of-different-transfer-factors
#7
Guillermo Arturo Guidos-Fogelbach, Jorge Antonio Paredes-Aguilar, Nayeli Montserrat Colín-Martínez, María Isabel Rojo-Gutiérrez, Marisol López-Hidalgo, César Augusto Sandino Reyes-López
BACKGROUND: The transfer factor (TF) is the dialyzable extract of leukocytes with cellular immunity transfer properties. Its use has spread in the treatment of a wide range of immunologic, infectious, and even oncological diseases. However, important aspects in their protein profile, component concentrations, and a well-defined action mechanism are not completely unknown. OBJECTIVES: To analyze the protein profiles of different transfer factors marketed in Mexico...
October 2016: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/27191003/in-vivo-chemoprotective-activity-of-bovine-dialyzable-leukocyte-extract-in-mouse-bone-marrow-cells-against-damage-induced-by-5-fluorouracil
#8
Erika Evangelina Coronado-Cerda, Moisés Armides Franco-Molina, Edgar Mendoza-Gamboa, Heriberto Prado-García, Lydia Guadalupe Rivera-Morales, Pablo Zapata-Benavides, María Del Carmen Rodríguez-Salazar, Diana Caballero-Hernandez, Reyes Silvestre Tamez-Guerra, Cristina Rodríguez-Padilla
Chemotherapy treatments induce a number of side effects, such as leukopenia neutropenia, peripheral erythropenia, and thrombocytopenia, affecting the quality of life for cancer patients. 5-Fluorouracil (5-FU) is wieldy used as myeloablative model in mice. The bovine dialyzable leukocyte extract (bDLE) or IMMUNEPOTENT CRP® (ICRP) is an immunomodulatory compound that has antioxidants and anti-inflammatory effects. In order to investigate the chemoprotection effect of ICRP on bone marrow cells in 5-FU treated mice, total bone marrow (BM) cell count, bone marrow colony forming units-granulocyte/macrophage (CFU-GM), cell cycle, immunophenotypification, ROS/superoxide and Nrf2 by flow cytometry, and histological and hematological analyses were performed...
2016: Journal of Immunology Research
https://www.readbyqxmd.com/read/25984538/herpes-murine-model-as-a-biological-assay-to-test-dialyzable-leukocyte-extracts-activity
#9
Nohemí Salinas-Jazmín, Sergio Estrada-Parra, Miguel Angel Becerril-García, Alberto Yairh Limón-Flores, Said Vázquez-Leyva, Emilio Medina-Rivero, Lenin Pavón, Marco Antonio Velasco-Velázquez, Sonia Mayra Pérez-Tapia
Human dialyzable leukocyte extracts (DLEs) are heterogeneous mixtures of low-molecular-weight peptides that are released on disruption of peripheral blood leukocytes from healthy donors. DLEs improve clinical responses in infections, allergies, cancer, and immunodeficiencies. Transferon is a human DLE that has been registered as a hemoderivate by Mexican health authorities and commercialized nationally. To develop an animal model that could be used routinely as a quality control assay for Transferon, we standardized and validated a murine model of cutaneous HSV-1 infection...
2015: Journal of Immunology Research
https://www.readbyqxmd.com/read/25115098/dialyzable-leukocyte-extracts-activate-tlr-2-on-monocytes
#10
Uriel García-Hernández, Frank H Robledo-Avila, Violeta D Alvarez-Jiménez, Octavio Rodríguez-Cortés, Isabel Wong-Baeza, Jeanet Serafín-López, Luz M Aguilar-Anguiano, Sergio Estrada-Parra, Iris Estrada-García, Sonia M Pérez-Tapia, Rommel Chacón-Salinas
Dialyzable leukocyte extracts (DLE) transfer specific cell-mediated immune responses from sensitized donors to non-immune recipients. In addition, DLE have several immunomodulatory effects and are used for the treatment of several infectious and non-infectious diseases. Previous studies showed that human DLE obtained from virus-infected leukocytes and bovine DLE decrease the production of the pro-inflammatory cytokine TNF-alpha in response to bacterial lipopolysaccharide, in vitro and in vivo. In the present work, we inquire as to whether DLE from uninfected human leukocytes have the ability to regulate cytokine production in peripheral blood mononuclear cells (PBMC) in vitro...
June 2014: Natural Product Communications
https://www.readbyqxmd.com/read/24348675/effect-of-selective-serotonin-reuptake-inhibitors-and-immunomodulator-on-cytokines-levels-an-alternative-therapy-for-patients-with-major-depressive-disorder
#11
María Eugenia Hernandez, Danelia Mendieta, Mayra Pérez-Tapia, Rafael Bojalil, Iris Estrada-Garcia, Sergio Estrada-Parra, Lenin Pavón
Major depressive disorder (MDD) is a psychiatric illness that presents as a deficit of serotonergic neurotransmission in the central nervous system. MDD patients also experience alterations in cortisol and cytokines levels. Treatment with selective serotonin reuptake inhibitors (SSRIs) is the first-line antidepressant regimen for MDD. The aim of this study was to determine the effect of a combination of SSRIs and an immunomodulator-human dialyzable leukocyte extract (hDLE)-on cortisol and cytokines levels. Patients received SSRIs or SSRIs plus hDLE...
2013: Clinical & Developmental Immunology
https://www.readbyqxmd.com/read/24106515/low-dose-amphotericin-b-and-murine-dialyzable-spleen-extracts-protect-against-systemic-candida-infection-in-mice
#12
F Robledo-Ávila, M Pérez-Tapia, A Limón-Flores, L Pavon, R Hernández-Pando, I Wong-Baeza, G González-González, C Tovar, S Estrada-Parra, I Estrada-García
Candida albicans causes opportunistic systemic infections with high mortality (30%-50%). Despite significant nephrotoxicity, amphotericin (AmB) is still used for the treatment of this serious fungal infection. Therefore, alternative treatments are urgently needed. Dialyzable leukocyte extracts have been used successfully to treat patients with mucocutaneous candidiasis, but their effectiveness in systemic candidiasis has not been evaluated. In this study, low-dose AmB (0.1 mg/kg) plus 10 pg of murine dialyzable spleen extracts (mDSE) were tested in a systemic candidiasis mouse model...
2013: Clinical & Developmental Immunology
https://www.readbyqxmd.com/read/24099727/batch-to-batch-reproducibility-of-transferon%C3%A2
#13
Emilio Medina-Rivero, Giovanna Merchand-Reyes, Lenin Pavón, Said Vázquez-Leyva, Gilberto Pérez-Sánchez, Nohemí Salinas-Jazmín, Sergio Estrada-Parra, Marco Velasco-Velázquez, Sonia Mayra Pérez-Tapia
Human dialyzable leukocyte extracts (DLEs) are heterogeneous mixtures of low-molecular-weight peptides that modulate immune responses in various diseases. Due their complexity, standardized methods to identify their physicochemical properties and determine that production batches are biologically active must be established. We aimed to develop and validate a size exclusion ultra performance chromatographic (SE-UPLC) method to characterize Transferon™, a DLE that is produced under good manufacturing practices (GMPs)...
January 2014: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/24007985/-transfer-factor-effectiveness-patients-with-persistent-genital-human-papillomavirus-infection
#14
Blanca María Morfin-Maciel, Julieta Margarita Sotelo-Ortiz
BACKGROUND: Human papillomavirus (HPV) is one of the most common sexually transmitted infections worldwide. Most HPV infections are cleared within two years by the immune system. Only in 5% to 10% of infected women the infection persists determining a high risk of developing cervical intraepithelial neoplasia. The transfer factor (TF) or dialyzable leukocyte extract is an immunomodulator that has been successfully used as an adjuvant in the treatment of intracelular infections such as recurrent herpes virus diseases...
July 2012: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/22993557/clinical-and-immunological-assessment-in-breast-cancer-patients-receiving-anticancer-therapy-and-bovine-dialyzable-leukocyte-extract-as-an-adjuvant
#15
Humberto H Lara, Liliana Ixtepan Turrent, Elsa N Garza-Treviño, Reyes Tamez-Guerra, Cristina Rodriguez-Padilla
Dialyzable leukocyte extract (DLE) is one of the immunological agents used as an adjuvant in cancer therapy; it has been associated with improved quality of life during cancer chemotherapy. Based on these previous findings and on the observed clinical benefits attributed to DLE in other types of cancer, we investigated its clinical and immunological effects as a therapy adjuvant on breast cancer patients who received only chemotherapy, as compared to patients administered bovine DLE (bDLE) as an adjuvant. This study included 43 breast cancer patients who were about to begin chemotherapy...
May 2010: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/22044844/antiviral-mode-of-action-of-bovine-dialyzable-leukocyte-extract-against-human-immunodeficiency-virus-type-1-infection
#16
Humberto H Lara, Liliana Ixtepan-Turrent, Elsa N Garza-Treviño, Jose I Badillo-Almaraz, Cristina Rodriguez-Padilla
BACKGROUND: Bovine dialyzable leukocyte extract (bDLE) is derived from immune leukocytes obtained from bovine spleen. DLE has demonstrated to reduce transcription of Human Immunodeficiency Virus Type 1 (HIV-1) and inactivate the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) signaling pathway. Therefore, we decided to clarify the mode of antiviral action of bDLE on the inhibition of HIV-1 infection through a panel of antiviral assays. RESULTS: The cytotoxicity, HIV-1 inhibition activity, residual infectivity of bDLE in HIV-1, time of addition experiments, fusion inhibition of bDLE for fusogenic cells and the duration of cell protection even after the removal of bDLE were all assessed in order to discover more about the mode of the antiviral action...
2011: BMC Research Notes
https://www.readbyqxmd.com/read/22027678/-down-regulation-of-il-8-and-il-6-in-human-limbal-epithelial-cells-cultured-with-human-dialyzable-leukocyte-extracts
#17
Atzin Robles-Contreras, Lizet Vizuet, Erika Rivera, Jeanet Serafin-López, Iris Estrada-Garcia, Sergio Estrada-Parra, Raúl Chávez, Yonathan Garfias, Mayra Perez-Tapia, María C Jiménez-Martínez
INTRODUCTION: Human Limbal Epithelial Cells (hLEC) are stem cells that give rise to corneal epithelium. After corneal damage, hLEC produce large amounts of IL-8 and IL-6, inducing inflammation in cornea and conjunctiva. Despite inflammation is necessary to repair the ocular surface since this process may be potentially harmful and could lead to corneal opacity. Ophthalmic infectious diseases have been treated with human dialyzable leukocyte extracts (hDLE). Clinical observations in hDLE-treated patients, have suggested an apparent control of ocular inflammatory injuries, without changes in the re-epithelialization process...
May 2011: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/21944489/transfer-factor-and-allergy
#18
Javier Gómez Vera, Raúl Chávez Sánchez, Graciela Flores Sandoval, Modesto Orea Solano, José Jesús López Tiro, A D Santiago Santos, Sara Espinosa Padilla, Francisco Espinosa Rosales, J Huerta, José Antonio Ortega Martell, Renato Berrón Pérez, Alejandro Estrada García, Mayra Pérez Tapia, Azucena Rodríguez Flores, Ernestina Serrano Miranda, Oscar Pineda García, Consuelo Andaluz, Edgar Cervantes Trujano, Abraham Portugués Díaz, Javier Barrientos Zamudio, Laura Cano Ortíz, Jeanet Serafín López, María Del Carmen Jiménez Martínez, Gustavo Aguilar Velázquez, Yonathan Garfias Becerra, Concepción Santacruz Valdéz, Daniel Aguilar Ángeles, María Isabel Rojo Guiérrez, Miguel Aguilar Santelises, Sergio Estrada Parra
Although various mechanisms involving antibodies and various cell types participate, a Thl and Th2 cells imbalance seems to play a central role for allergy development. Other lymphocyte subpopulations, such as Th17, CD4 FOXP3, and Th9 positive regulatory T lymphocytes may also be involved in the allergic response. Regulatory processes are an appealing target for therapeutic approaches aiming to solve allergic reactions by restoring the delicate balance within the immune system. Transfer factor (TF) or dialyzable leukocyte extract is meant to transfer cell-mediated immunity from immune competent donors to unsensitized or deficient recipients...
November 2010: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/18821359/immunepotent-crp-bovine-dialyzable-leukocyte-extract-adjuvant-immunotherapy-a-phase-i-study-in-non-small-cell-lung-cancer-patients
#19
M A Franco-Molina, E Mendoza-Gamboa, P Zapata-Benavides, M E Vera-García, P Castillo-Tello, A García de la Fuente, R D Mendoza, R G Garza, R S Támez-Guerra, C Rodríguez-Padilla
BACKGROUND: IMMUNEPOTENT CRP is a mixture of low molecular weight substances, some of which have been shown to be capable of modifying the immune response. We evaluated the response and adjuvant effect of IMMUNEPOTENT CRP on non-small cell lung cancer (NSCLC) patients in a phase I clinical trial. METHODS: Twenty-four NSCLC patients were included in the study and divided into two groups. Group 1 received a conventional treatment of 5400 cGy external radiotherapy in 28 fractions and chemotherapy consisting of intravenous cisplatin (40 mg/m(2)) delivered weekly for 6 weeks...
2008: Cytotherapy
https://www.readbyqxmd.com/read/18368600/bovine-dialyzable-leukocyte-extract-modulates-ap-1-dna-binding-activity-and-nuclear-transcription-factor-expression-in-mcf-7-breast-cancer-cells
#20
E Mendoza-Gamboa, M A Franco-Molina, P Zapata-Benavides, P Castillo-Tello, M E Vera-García, R S Tamez-Guerra, C Rodríguez-Padilla
BACKGROUND: We have previously demonstrated that bovine dialyzable leukocyte extract (bDLE) induces death through an apoptosis mechanism in MCF-7 breast cancer cells. Depending on the cell type and stimulus, activating protein-1 (AP-1) has been shown to regulate cell proliferation and differentiation, the stress response, apoptosis and survival. It remains unknown whether AP-1 and other transcription factors are mechanisms by which bDLE induces cell death. METHODS: To determine whether bDLE modulates the AP-1 DNA binding and gene expression, MCF-7 breast cancer cells were treated with bDLE (0, 1, 5, 10 U) for 72 h and evaluated by electrophoretic mobility shift assay, reverse transcriptase-polymerase chain reaction and Western blot assays...
2008: Cytotherapy
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