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Article ; Online: A subpopulation of green turtle suprabasal epidermal cells are Langerin+ and migrate under in vitro stimulation of the chemokine CCL21.

Muñoz Tenería, Fernando A / Calderón-Amador, Juana / Negrete-Philippe, Ana C / Flores-Romo, Leopoldo

2022 Volume 46, Issue 3, Page(s) 939–945

Abstract: Dendritic cells form the link between the innate and adaptative immune response, particularly on mucosal and epidermal surfaces. The Langerhans, an epidermal dendritic cell subpopulation, play a key role in the skin immune response across several species. ...

Abstract	Dendritic cells form the link between the innate and adaptative immune response, particularly on mucosal and epidermal surfaces. The Langerhans, an epidermal dendritic cell subpopulation, play a key role in the skin immune response across several species. Scarse immune cell subpopulations, including Langerhans-like cells, have been identified in endangered green turtles thereby complicating the understanding of the pathogenesis of diseases such as fibropapillomatosis, which induces skin tumours in this species worldwide. In biopsies from green turtle skin, we demonstrated that the polyclonal anti-human Langerin antibodies strongly stained a Langerin+ cell population in epidermal sheets, the suprabasal layer of the epidermis in cryosections and in cells from cytospin preparation of migration assays. The morphology of these cells was round to amoeboid in normal skin; however, in skin with ulcerative dermatitis, Langerin+ cells aggregated around ulcers and adopted a more pleomorphic morphology. To our knowledge, this is the first identification of Langerin+ cells with a molecular marker in a reptile species.
MeSH term(s)	Animals ; Chemokine CCL21 ; Epidermal Cells ; Langerhans Cells ; Skin/pathology ; Turtles/physiology
Chemical Substances	Chemokine CCL21
Language	English
Publishing date	2022-01-31
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	406735-6
ISSN	1573-7446 ; 0165-7380
ISSN (online)	1573-7446
ISSN	0165-7380
DOI	10.1007/s11259-021-09883-3
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Article: Quantification of Phenolic Compounds and In Vitro Radical Scavenging Abilities with Leaf Extracts from Two Varieties of Psidium guajava L.

Camarena-Tello, Julio César / Martínez-Flores, Héctor Eduardo / Garnica-Romo, Ma Guadalupe / Padilla-Ramírez, José Saúl / Saavedra-Molina, Alfredo / Alvarez-Cortes, Osvaldo / Bartolomé-Camacho, María Carmen / Rodiles-López, José Octavio

Antioxidants (Basel, Switzerland)

2018 Volume 7, Issue 3

Abstract: Guava leaf ( ...

Abstract	Guava leaf (
Language	English
Publishing date	2018-02-27
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2704216-9
ISSN	2076-3921
ISSN	2076-3921
DOI	10.3390/antiox7030034
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Article ; Online: Early appearance of functional plasma cells (CD138+CD98+) in non-immunized neonate mice.

Orozco-Uribe, M / Maqueda-Alfaro, R / Hernández-Cázares, F / Saucedo-Campos, A D / Donis-Maturano, L / Calderón-Amador, J / Flores-Romo, L / Ortiz-Navarrete, V / Hernández-Hernández, J M

Immunology letters

2023 Volume 259, Page(s) 9–20

Abstract: Plasma cells (PCs) are terminally differentiated antibody-secreting cells, derived from activated B-lymphocytes in response to either T-independent or T-dependent antigens. The plasma cell population is scarce in circulation in non-immunized individuals. ...

Abstract	Plasma cells (PCs) are terminally differentiated antibody-secreting cells, derived from activated B-lymphocytes in response to either T-independent or T-dependent antigens. The plasma cell population is scarce in circulation in non-immunized individuals. It is established that neonates are incapable of mounting an efficient immune response due to the immaturity of the immune system. However, this disadvantage is well overcome through the antibodies neonates receive from breastmilk. This implies that neonates will be only protected against antigens the mother had previously encountered. Thus, the child might be potentially susceptible to new antigens. This issue prompted us to seek for the presence of PCs in non-immunized neonate mice. We found a PC population identified as CD138+/CD98+ cells since day one after birth. These PCs were positive for Ki67 and expressed Blimp-1, B220, and CD19, which suggests the populations are plasmablasts and PCs with heterogeneous phenotype. These PCs were also determined to secrete antibodies, although mainly isotype IgM. Altogether, the results indicated that neonate PCs can produce antibodies against antigens they encounter in the first weeks of life, most likely coming from food, colonizing microbiota, or the environment.
MeSH term(s)	Animals ; Mice ; Antibodies ; Antigens, CD19 ; B-Lymphocytes ; Immune System ; Plasma Cells ; Fusion Regulatory Protein-1
Chemical Substances	Antibodies ; Antigens, CD19 ; Sdc1 protein, mouse ; Fusion Regulatory Protein-1
Language	English
Publishing date	2023-05-22
Publishing country	Netherlands
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	445150-8
ISSN	1879-0542 ; 0165-2478
ISSN (online)	1879-0542
ISSN	0165-2478
DOI	10.1016/j.imlet.2023.05.004
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Article ; Online: Activation of regulatory dendritic cells by Mertk coincides with a temporal wave of apoptosis in neonatal lungs.

Silva-Sanchez, Aaron / Meza-Perez, Selene / Liu, Mingyong / Stone, Sara L / Flores-Romo, Leopoldo / Ubil, Eric / Lund, Frances E / Rosenberg, Alexander F / Randall, Troy D

Science immunology

2023 Volume 8, Issue 84, Page(s) eadc9081

Abstract: Multiple mechanisms restrain inflammation in neonates, most likely to prevent tissue damage caused by overly robust immune responses against newly encountered pathogens. Here, we identify a population of pulmonary dendritic cells (DCs) that express ... ...

Abstract	Multiple mechanisms restrain inflammation in neonates, most likely to prevent tissue damage caused by overly robust immune responses against newly encountered pathogens. Here, we identify a population of pulmonary dendritic cells (DCs) that express intermediate levels of CD103 (CD103
MeSH term(s)	Mice ; Animals ; CD8-Positive T-Lymphocytes ; c-Mer Tyrosine Kinase/metabolism ; Dendritic Cells ; Lung ; Pneumonia ; Apoptosis
Chemical Substances	c-Mer Tyrosine Kinase (EC 2.7.10.1) ; Mertk protein, mouse (EC 2.7.10.1)
Language	English
Publishing date	2023-06-16
Publishing country	United States
Document type	Journal Article
ISSN	2470-9468
ISSN (online)	2470-9468
DOI	10.1126/sciimmunol.adc9081
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Article ; Online: Elevated levels of enteric IgA in an unimmunised mouse model of Hyper IgM syndrome derived from gut-associated secondary lymph organs even in the absence of germinal centres.

Hernandez-Cazares, Felipe / Maqueda-Alfaro, Raul Antonio / Lopez-Saucedo, Catalina / Martinez-Barnetche, Jesus / Yam-Puc, Juan Carlos / Estrada-Parra, Sergio / Flores-Romo, Leopoldo / Estrada-Garcia, Teresa

Frontiers in cellular and infection microbiology

2023 Volume 13, Page(s) 1172021

Abstract: Introduction: Patients with Human Hyper IgM syndromes (HIGM) developed pulmonary and gastrointestinal infections since infancy and most patients have mutations in the CD40 ligand (CD40L) gene. Most HIGM patients compared to healthy subjects have higher/ ... ...

Abstract	Introduction: Patients with Human Hyper IgM syndromes (HIGM) developed pulmonary and gastrointestinal infections since infancy and most patients have mutations in the CD40 ligand (CD40L) gene. Most HIGM patients compared to healthy subjects have higher/similar IgM and lower IgG, and IgA serum concentrations but gut antibody concentrations are unknown. CD40L on activated T-cells interacts with CD40 on B-cells, essential for the formation of germinal centres (GCs) inside secondary lymphoid organs (SLOs), where high-affinity antibodies, long-lived antibody-secreting plasma cells, and memory B-cells, are produced. C57BL6-CD40 ligand deficient mice (C57BL6- Aims: To compare and evaluate B-cell populations and IgA-producing plasma cells in peritoneal lavage, non-gut-associated SLOs, spleen/inguinal lymph nodes (ILN), and gut-associated SLOs, mesenteric lymph nodes (MLN)/Peyer´s patches (PP) of unimmunised C57BL6- Material and methods: Peritoneal lavages, spleens, ILN, MLN, and PP from 8-10 weeks old C57BL6- Results: In unimmunised WT mice, GCs were only observed in the gut-associated SLOs, but GCs were absent in all C57BL6- Discussion: Together our results confirm the role of PP and MLN as gut inductive sites, whose characteristic features are to initiate an IgA preferential immune response production in these anatomical sites even in the absence of GCs. IgA antibodies play a pivotal role in neutralising, eliminating, and regulating potential pathogens and microorganisms in the gut.
MeSH term(s)	Humans ; Mice ; Animals ; CD40 Ligand ; Hyper-IgM Immunodeficiency Syndrome ; Germinal Center ; Intestine, Small ; Immunoglobulin A ; Immunoglobulin M ; Transforming Growth Factor beta
Chemical Substances	CD40 Ligand (147205-72-9) ; Immunoglobulin A ; Immunoglobulin M ; Transforming Growth Factor beta
Language	English
Publishing date	2023-06-29
Publishing country	Switzerland
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2619676-1
ISSN	2235-2988 ; 2235-2988
ISSN (online)	2235-2988
ISSN	2235-2988
DOI	10.3389/fcimb.2023.1172021
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Article: Germinal Center Cells Turning to the Dark Side: Neoplasms of B Cells, Follicular Helper T Cells, and Follicular Dendritic Cells.

Munguía-Fuentes, Rosario / Maqueda-Alfaro, Raúl Antonio / Chacón-Salinas, Rommel / Flores-Romo, Leopoldo / Yam-Puc, Juan Carlos

Frontiers in oncology

2021 Volume 10, Page(s) 587809

Abstract: Gaining knowledge of the neoplastic side of the three main cells-B cells, Follicular Helper T (Tfh) cells, and follicular dendritic cells (FDCs) -involved in the germinal center (GC) reaction can shed light toward further understanding the microuniverse ... ...

Abstract	Gaining knowledge of the neoplastic side of the three main cells-B cells, Follicular Helper T (Tfh) cells, and follicular dendritic cells (FDCs) -involved in the germinal center (GC) reaction can shed light toward further understanding the microuniverse that is the GC, opening the possibility of better treatments. This paper gives a review of the more complex underlying mechanisms involved in the malignant transformations that take place in the GC. Whilst our understanding of the biology of the GC-related B cell lymphomas has increased-this is not reviewed in detail here-the dark side involving neoplasms of Tfh cells and FDCs are poorly studied, in great part, due to their low incidence. The aggressive behavior of Tfh lymphomas and the metastatic potential of FDCs sarcomas make them clinically relevant, merit further attention and are the main focus of this review. Tfh cells and FDCs malignancies can often be misdiagnosed. The better understanding of these entities linked to their molecular and genetic characterization will lead to prediction of high-risk patients, better diagnosis, prognosis, and treatments based on molecular profiles.
Language	English
Publishing date	2021-01-15
Publishing country	Switzerland
Document type	Journal Article ; Review
ZDB-ID	2649216-7
ISSN	2234-943X
ISSN	2234-943X
DOI	10.3389/fonc.2020.587809
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Article: Effect of Dehulling and Germination on Physicochemical and Pasting Properties of Black Beans (Phaseolus vulgaris L.)

Guajardo-Flores, Daniel / GutiÃ©rrez-Uribe Janet A / Moreno-GarcÃa Beatriz E / PÃ©rez-Carrillo Esther / RamÃrez-Valdez Liliana E / Romo-LÃ³pez Irasema

Cereal chemistry. 2017 Jan., v. 94, no. 1

2017

Abstract: Dehulled and/or germinated black bean flours were physicochemically characterized, including pasting properties, along with the trypsin inhibitor and antioxidant phenolics. To our best knowledge, this is the first study that, using nonparametric ... ...

Abstract	Dehulled and/or germinated black bean flours were physicochemically characterized, including pasting properties, along with the trypsin inhibitor and antioxidant phenolics. To our best knowledge, this is the first study that, using nonparametric correlations and principal component analysis, identifies the parameters affecting the pasting properties of germinated black bean flour. The carbohydrate loss observed after black bean germination was indirectly correlated with the crude fiber content. Therefore, germination increased the protein and crude fiber contents compared with raw seeds (from 19.1 and 2.4% to 24.0 and 5.1%, respectively). Additionally, the highest protein digestibility was obtained in dehulled germinated black bean flour (78.4%), followed by whole germinated seed flour (74.1%). The dehulling process increased the total starch content 13.5 and 18.8% compared with raw and germinated whole bean flours, respectively. Dehulling decreased both trypsin inhibitor activity and antioxidant phenolics. Germination reduced by twofold the peak and final viscosities of black bean flours. Interestingly, both viscosities were negatively correlated with protein and positively correlated with fat and insoluble dietary fiber. Although resistant starch content was not affected by germination or dehulling, its interactions with fat and insoluble dietary fiber were responsible of the changes observed in pasting properties of germinated black bean flour.
Keywords	antioxidants ; bean flour ; black beans ; correlation ; crude fiber ; dietary fiber ; digestible protein ; germination ; hulling ; pasting properties ; Phaseolus vulgaris ; phenolic compounds ; principal component analysis ; resistant starch ; seeds ; trypsin inhibitors ; viscosity
Language	English
Dates of publication	2017-01
Size	p. 98-103.
Publishing place	Cereal Chemistry
Document type	Article
ZDB-ID	242360-1
ISSN	0009-0352
ISSN	0009-0352
DOI	10.1094%2FCCHEM-02-16-0017-FI
Database	NAL-Catalogue (AGRICOLA)

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Z 937: Show issues

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Article: Detection of viruses in colonies of honey bees (Apis mellifera L.) in the state of Chihuahua, Mexico

García-Anaya, Mayra C. / Romo-Chacón, Alejandro / Zamudio-Flores, Paul B. / Ríos-Velasco, Claudio / Acosta-Muñiz, Carlos H.

Journal of apicultural research

2016 Volume 55, Issue 3, Page(s) 240

Language	English
Document type	Article
ZDB-ID	281228-9
ISSN	0021-8839
Database	Current Contents Nutrition, Environment, Agriculture

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Z 2023: Show issues

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Article ; Online: Robust Plasma Cell Response to Skin-Inoculated Dengue Virus in Mice.

Maqueda-Alfaro, Raúl A / Marcial-Juárez, Edith / Calderón-Amador, Juana / García-Cordero, Julio / Orozco-Uribe, Mariana / Hernández-Cázares, Felipe / Medina-Pérez, Uziel / Sánchez-Torres, Luvia E / Flores-Langarica, Adriana / Cedillo-Barrón, Leticia / Yam-Puc, Juan C / Flores-Romo, Leopoldo

Journal of immunology research

2021 Volume 2021, Page(s) 5511841

Abstract: Dengue is a worldwide expanding threat caused by dengue virus (DENV) infection. To date, no specific treatment or effective vaccine is available. Antibodies produced by plasma cells (PCs) might be involved concomitantly in protection and severe dengue ... ...

Abstract	Dengue is a worldwide expanding threat caused by dengue virus (DENV) infection. To date, no specific treatment or effective vaccine is available. Antibodies produced by plasma cells (PCs) might be involved concomitantly in protection and severe dengue immunopathology. Although a massive appearance of PCs has been reported during acute DENV infection in humans, this response has been poorly characterized. Here, we show the dynamic of PC generation in immune-competent mice cutaneously inoculated with DENV compared with two control experimental groups: mice inoculated with inactivated DENV or with PBS. We found that PC numbers increased significantly in the skin-draining lymph node (DLN), peaking at day 10 and abruptly decreasing by day 14 after DENV inoculation. Class-switched IgG
MeSH term(s)	Animals ; Antibodies, Neutralizing/analysis ; Antibodies, Neutralizing/metabolism ; Antibodies, Viral/analysis ; Antibodies, Viral/metabolism ; Cross Reactions ; Dengue/immunology ; Dengue/pathology ; Dengue/virology ; Dengue Virus/immunology ; Disease Models, Animal ; Germinal Center/cytology ; Germinal Center/immunology ; Germinal Center/metabolism ; Humans ; Male ; Mice ; Plasma Cells/immunology ; Plasma Cells/metabolism ; Skin/immunology ; Skin/pathology ; Skin/virology ; Specific Pathogen-Free Organisms ; Zika Virus/immunology
Chemical Substances	Antibodies, Neutralizing ; Antibodies, Viral
Language	English
Publishing date	2021-04-26
Publishing country	Egypt
Document type	Journal Article
ZDB-ID	2817541-4
ISSN	2314-7156 ; 2314-8861
ISSN (online)	2314-7156
ISSN	2314-8861
DOI	10.1155/2021/5511841
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Article ; Online: Enhanced oxidative stress resistance in Ustilago maydis and its implications on the virulence.

Cuamatzi-Flores, Jorge / Colón-González, Maritrini / Requena-Romo, Fernanda / Quiñones-Galeana, Samuel / Cervantes-Chávez, José Antonio / Morales, Lucia

International microbiology : the official journal of the Spanish Society for Microbiology

2024

Abstract: The phytopathogenic fungus Ustilago maydis causes corn smut by suppressing host plant defenses, including the oxidative burst response. While many studies have investigated how U. maydis responds to oxidative stress during infection, the consequences of ... ...

Abstract	The phytopathogenic fungus Ustilago maydis causes corn smut by suppressing host plant defenses, including the oxidative burst response. While many studies have investigated how U. maydis responds to oxidative stress during infection, the consequences of heightened resistance to oxidative stress on virulence remain understudied. This study aimed to identify the effects on virulence in U. maydis strains exhibiting enhanced resistance to hydrogen peroxide (H
Language	English
Publishing date	2024-02-24
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	1454951-7
ISSN	1618-1905 ; 1139-6709
ISSN (online)	1618-1905
ISSN	1139-6709
DOI	10.1007/s10123-024-00489-8
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