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  1. Article: Effects of Sex Steroids on Fish Leukocytes.

    Chaves-Pozo, Elena / García-Ayala, Alfonsa / Cabas, Isabel

    Biology

    2018  Volume 7, Issue 1

    Abstract: In vertebrates, in addition to their classically reproductive functions, steroids regulate the immune system. This action is possible mainly due to the presence of steroid receptors in the different immune cell types. Much evidence suggests that the ... ...

    Abstract In vertebrates, in addition to their classically reproductive functions, steroids regulate the immune system. This action is possible mainly due to the presence of steroid receptors in the different immune cell types. Much evidence suggests that the immune system of fish is vulnerable to xenosteroids, which are ubiquitous in the aquatic environment. In vivo and in vitro assays have amply demonstrated that oestrogens interfere with both the innate and the adaptive immune system of fish by regulating the main leukocyte activities and transcriptional genes. They activate nuclear oestrogen receptors and/or G-protein coupled oestrogen receptor. Less understood is the role of androgens in the immune system, mainly due to the complexity of the transcriptional regulation of androgen receptors in fish. The aim of this manuscript is to review our present knowledge concerning the effect of sex steroid hormones and the presence of their receptors on fish leukocytes, taking into consideration that the studies performed vary as regard the fish species, doses, exposure protocols and hormones used. Moreover, we also include evidence of the probable role of progestins in the regulation of the immune system of fish.
    Language English
    Publishing date 2018-01-09
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2661517-4
    ISSN 2079-7737
    ISSN 2079-7737
    DOI 10.3390/biology7010009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Peroxisome proliferator-activated receptors alpha and beta mediate the anti-inflammatory effects of the cyclopentenone prostaglandin 15-deoxy-Δ

    Gómez-Abellán, Victoria / Pérez-Oliva, Ana B / Cabas, Isabel / Hermi, Fatma / Arizcun, Marta / García-Moreno, Diana / Sepulcre, María P / Mulero, Victoriano

    Developmental and comparative immunology

    2022  Volume 136, Page(s) 104498

    Abstract: Prostaglandins (PGs) are highly reactive small lipophilic molecules derived from polyunsaturated fatty acids of the cell membrane and play a key role in the resolution of inflammation processes. 15-deoxy- ... ...

    Abstract Prostaglandins (PGs) are highly reactive small lipophilic molecules derived from polyunsaturated fatty acids of the cell membrane and play a key role in the resolution of inflammation processes. 15-deoxy-Δ
    MeSH term(s) Animals ; Cyclooxygenase 2/metabolism ; Cyclopentanes ; DNA, Bacterial ; Granulocytes/metabolism ; Inflammation ; Mammals ; PPAR alpha ; PPAR gamma/genetics ; PPAR gamma/metabolism ; PPAR-beta ; Prostaglandin D2/chemistry ; Prostaglandin D2/pharmacology ; Prostaglandins ; Reactive Oxygen Species ; Sea Bream/metabolism
    Chemical Substances Cyclopentanes ; DNA, Bacterial ; PPAR alpha ; PPAR gamma ; PPAR-beta ; Prostaglandins ; Reactive Oxygen Species ; Cyclooxygenase 2 (EC 1.14.99.1) ; cyclopentenone (Q0U2IGF9CK) ; Prostaglandin D2 (RXY07S6CZ2)
    Language English
    Publishing date 2022-08-07
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 752411-0
    ISSN 1879-0089 ; 0145-305X
    ISSN (online) 1879-0089
    ISSN 0145-305X
    DOI 10.1016/j.dci.2022.104498
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Peroxisome proliferator-activated receptors alpha and beta mediate the anti-inflammatory effects of the cyclopentenone prostaglandin 15-deoxy-Δ12,14-PGJ2 in fish granulocytes

    Gómez-Abellán, Victoria / Pérez-Oliva, Ana B. / Cabas, Isabel / Hermi, Fatma / Arizcun, Marta / García-Moreno, Diana / Sepulcre, María P. / Mulero, Victoriano

    Developmental and comparative immunology. 2022 Nov., v. 136

    2022  

    Abstract: Prostaglandins (PGs) are highly reactive small lipophilic molecules derived from polyunsaturated fatty acids of the cell membrane and play a key role in the resolution of inflammation processes. 15-deoxy-Δ¹²,¹⁴-PGJ₂ (15dPGJ₂) is a cyclopentenone PG (CyPG) ...

    Abstract Prostaglandins (PGs) are highly reactive small lipophilic molecules derived from polyunsaturated fatty acids of the cell membrane and play a key role in the resolution of inflammation processes. 15-deoxy-Δ¹²,¹⁴-PGJ₂ (15dPGJ₂) is a cyclopentenone PG (CyPG) of the J series with anti-inflammatory, anti-proliferative and pro-apoptotic effects. This CyPG can signal through: (i) the PGD₂ receptor (DP2) and peroxisome proliferator-activated receptor γ (PPARγ) or (ii) by covalent binding to protein nucleophiles, such as, thiols groups of cysteine, lysine or histidine via a Michael addition reaction, modifying its structure and function. In this work we show that acidophilic granulocytes (AGs) of gilthead seabream (Sparus aurata L.), the functional equivalent to mammalian neutrophils, constitutively expressed ppara, pparb and pparg genes, the latter showing the highest expression and up-regulation when stimulated by bacterial DNA. In addition, we tested the ability of 15dPGJ₂, and its biotinylated analog, as well as several PPARγ ligands, to modulate reactive oxygen species (ROS) and/or cytokines production during a Toll like receptor (TLR)-mediated granulocyte response. Thus, 15dPGJ₂ was able to significantly decrease bacterial DNA-induced ROS production and transcript levels of pparg, interleukin-1β (il1b) and prostaglandin-endoperoxide synthase 2 (ptgs2). In contrast, its biotinylated analog was less potent and a higher dose was required to elicit the same effects on ROS production and cytokine expression. In addition, different PPARγ agonists were able to mimic the effects of 15dPGJ₂. Conversely, the PPARγ antagonist T007097 abolished the effect of 15dPGJ₂ on DNA bacterial-induced ROS production. Surprisingly, transactivation assays revealed that both 15dPGJ₂ and its biotinylated analog signaled via Pparα and Pparβ, but not by Pparγ. These results were further confirmed by HPLC/MS analysis, where Pparβ was identified as an interactor of biotin-15dPGJ₂ in naïve and DNA-stimulated leukocytes. Taken together, our data show that 15dPGJ₂ acts both through Ppar activation and covalent binding to proteins in fish granulocytes and identify for the first time in vertebrates a role for Pparα and Pparβ in the resolution of inflammation mediated by 15dPGJ₂.
    Keywords DNA ; Lewis bases ; Sparus aurata ; antagonists ; apoptosis ; cell membranes ; chemical reactions ; cysteine ; fish ; histidine ; inflammation ; ligands ; lipophilicity ; lysine ; mammals ; neutrophils ; prostaglandin synthase ; prostaglandins ; reactive oxygen species ; thiols ; transcriptional activation
    Language English
    Dates of publication 2022-11
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 752411-0
    ISSN 1879-0089 ; 0145-305X
    ISSN (online) 1879-0089
    ISSN 0145-305X
    DOI 10.1016/j.dci.2022.104498
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  4. Article ; Online: Evolution of LPS recognition and signaling: The bony fish perspective.

    Martínez-López, Alicia / Tyrkalska, Sylwia D / Alcaraz-Pérez, Francisca / Cabas, Isabel / Candel, Sergio / Martínez Morcillo, Francisco J / Sepulcre, María P / García-Moreno, Diana / Cayuela, María L / Mulero, Victoriano

    Developmental and comparative immunology

    2023  Volume 145, Page(s) 104710

    Abstract: Fish are the most diverse and successful group of vertebrate animals, with about 30,000 species. The study of fish immunity is of great importance for understanding the evolution of vertebrate immunity, as they are the first animals to show both innate ... ...

    Abstract Fish are the most diverse and successful group of vertebrate animals, with about 30,000 species. The study of fish immunity is of great importance for understanding the evolution of vertebrate immunity, as they are the first animals to show both innate and adaptive immune responses. Although fish immunity is similar to that of mammals, there are obvious differences, such as their dependence of ambient temperature, their poor antibody response, and lack of antibody switching and lymph nodes. In addition, several important differences have also been found between the innate immune responses of fish and mammals. Among these, we will discuss in this review the high resistance of fish to the toxic effects of lipopolysaccharide (LPS) which can be explained by the absence of a Toll-like receptor 4 (Tlr4) ortholog in most fish species or by the inability of the Tlr4/Md2 (Myeloid differentiation 2) complex to recognize LPS, together with the presence of a negative regulator of the LPS signaling complex formed by the TLR-like molecule Rp105 (Radioprotective 105) and Md1. Taken together, these data support the idea that, although TLR4 and RP105 arose from a common ancestor to fish and tetrapods, the TLR4/MD2 receptor complex for LPS recognition arose after their divergence about 450 million years ago.
    MeSH term(s) Animals ; Lipopolysaccharides ; Toll-Like Receptor 4/metabolism ; Signal Transduction ; Fishes ; Immunity, Innate ; Lymphocyte Antigen 96 ; Mammals
    Chemical Substances Lipopolysaccharides ; Toll-Like Receptor 4 ; Lymphocyte Antigen 96
    Language English
    Publishing date 2023-04-18
    Publishing country United States
    Document type Review ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 752411-0
    ISSN 1879-0089 ; 0145-305X
    ISSN (online) 1879-0089
    ISSN 0145-305X
    DOI 10.1016/j.dci.2023.104710
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: NAMPT and PARylation Are Involved in the Pathogenesis of Atopic Dermatitis.

    Arroyo, Ana B / Bernal-Carrión, Martín / Cantón-Sandoval, Joaquín / Cabas, Isabel / Corbalán-Vélez, Raúl / Martínez-Menchón, Teresa / Ferri, Belén / Cayuela, María L / García-Moreno, Diana / Mulero, Victoriano

    International journal of molecular sciences

    2023  Volume 24, Issue 9

    Abstract: Atopic dermatitis (AD) is a chronic inflammatory skin disease of very high prevalence, especially in childhood, with no specific treatment or cure. As its pathogenesis is complex, multifactorial and not fully understood, further research is needed to ... ...

    Abstract Atopic dermatitis (AD) is a chronic inflammatory skin disease of very high prevalence, especially in childhood, with no specific treatment or cure. As its pathogenesis is complex, multifactorial and not fully understood, further research is needed to increase knowledge and develop new targeted therapies. We have recently demonstrated the critical role of NAD
    MeSH term(s) Animals ; Humans ; Dermatitis, Atopic ; Inflammation ; NAD/metabolism ; Poly (ADP-Ribose) Polymerase-1/metabolism ; Poly Adenosine Diphosphate Ribose/metabolism ; Poly ADP Ribosylation ; Poly(ADP-ribose) Polymerase Inhibitors/pharmacology ; Psoriasis/etiology ; Zebrafish/metabolism
    Chemical Substances NAD (0U46U6E8UK) ; Poly (ADP-Ribose) Polymerase-1 (EC 2.4.2.30) ; Poly Adenosine Diphosphate Ribose (26656-46-2) ; Poly(ADP-ribose) Polymerase Inhibitors ; nicotinamide phosphoribosyltransferase, human (EC 2.4.2.12)
    Language English
    Publishing date 2023-04-28
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24097992
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Evolution of LPS recognition and signaling: The bony fish perspective

    Martínez-López, Alicia / Tyrkalska, Sylwia D. / Alcaraz-Pérez, Francisca / Cabas, Isabel / Candel, Sergio / Martínez Morcillo, Francisco J. / Sepulcre, María P. / García-Moreno, Diana / Cayuela, María L. / Mulero, Victoriano

    Developmental and Comparative Immunology. 2023 Aug., v. 145 p.104710-

    2023  

    Abstract: Fish are the most diverse and successful group of vertebrate animals, with about 30,000 species. The study of fish immunity is of great importance for understanding the evolution of vertebrate immunity, as they are the first animals to show both innate ... ...

    Abstract Fish are the most diverse and successful group of vertebrate animals, with about 30,000 species. The study of fish immunity is of great importance for understanding the evolution of vertebrate immunity, as they are the first animals to show both innate and adaptive immune responses. Although fish immunity is similar to that of mammals, there are obvious differences, such as their dependence of ambient temperature, their poor antibody response, and lack of antibody switching and lymph nodes. In addition, several important differences have also been found between the innate immune responses of fish and mammals. Among these, we will discuss in this review the high resistance of fish to the toxic effects of lipopolysaccharide (LPS) which can be explained by the absence of a Toll-like receptor 4 (Tlr4) ortholog in most fish species or by the inability of the Tlr4/Md2 (Myeloid differentiation 2) complex to recognize LPS, together with the presence of a negative regulator of the LPS signaling complex formed by the TLR-like molecule Rp105 (Radioprotective 105) and Md1. Taken together, these data support the idea that, although TLR4 and RP105 arose from a common ancestor to fish and tetrapods, the TLR4/MD2 receptor complex for LPS recognition arose after their divergence about 450 million years ago.
    Keywords Toll-like receptor 4 ; ambient temperature ; ancestry ; antibodies ; antibody formation ; evolution ; fish ; lipopolysaccharides ; lymph ; toxicity ; TLR4 ; RP105 ; MD2 ; MD1 ; LPS ; Innate immunity ; Inflammation ; Zebrafish
    Language English
    Dates of publication 2023-08
    Publishing place Elsevier Ltd
    Document type Article ; Online
    Note Use and reproduction
    ZDB-ID 752411-0
    ISSN 1879-0089 ; 0145-305X
    ISSN (online) 1879-0089
    ISSN 0145-305X
    DOI 10.1016/j.dci.2023.104710
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Role of estrogens in fish immunity with special emphasis on GPER1.

    Cabas, Isabel / Chaves-Pozo, Elena / Mulero, Victoriano / García-Ayala, Alfonsa

    Developmental and comparative immunology

    2018  Volume 89, Page(s) 102–110

    Abstract: It is well accepted that estrogens, the primary female sex hormones, play a key role in modulating different aspects of the immune response. Moreover, estrogens have been linked with the sexual dimorphism observed in some immune disorders, such as ... ...

    Abstract It is well accepted that estrogens, the primary female sex hormones, play a key role in modulating different aspects of the immune response. Moreover, estrogens have been linked with the sexual dimorphism observed in some immune disorders, such as chronic inflammatory and autoimmune diseases. Nevertheless, their effects are often controversial and depend on several factors, such as the pool of estrogen receptors (ERs) involved in the response. Their classical mode of action is through nuclear ERs, which act as transcription factors, promoting the regulation of target genes. However, it has long been noted that some of the estrogen-mediated effects cannot be explained by these classical receptors, since they are rapid and mediated by non-genomic signaling pathways. Hence, the interest in membrane ERs, especially in G protein-coupled estrogen receptor 1 (GPER1), has grown in recent years. Although the presence of nuclear ERs, and ER signaling, in immune cells in mammals and fish has been well documented, information on membrane ERs is much scarcer. In this context, the present manuscript aims to review our knowledge concerning the effect of estrogens on fish immunity, with special emphasis on GPER1. For example, the numerous tools developed over recent years allowed us to report for the first time that the regulation of fish granulocyte functions by estrogens through GPER1 predates the split of fish and tetrapods more than 450 million years ago, pointing to the relevance of estrogens as modulators of the immune responses, and the pivotal role of GPER1 in immunity.
    MeSH term(s) Adaptive Immunity ; Animals ; Estrogens/immunology ; Female ; Fish Proteins/immunology ; Fishes/immunology ; Immunity, Innate ; Immunomodulation ; Leukocytes/immunology ; Male ; Receptors, Estrogen/immunology ; Receptors, G-Protein-Coupled/immunology ; Signal Transduction/immunology
    Chemical Substances Estrogens ; Fish Proteins ; Receptors, Estrogen ; Receptors, G-Protein-Coupled
    Language English
    Publishing date 2018-08-06
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 752411-0
    ISSN 1879-0089 ; 0145-305X
    ISSN (online) 1879-0089
    ISSN 0145-305X
    DOI 10.1016/j.dci.2018.08.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Effects of Sex Steroids on Fish Leukocytes

    Chaves-Pozo, Elena / García-Ayala, Alfonsa / Cabas, Isabel

    Biology. 2018 Jan. 09, v. 7, no. 1

    2018  

    Abstract: In vertebrates, in addition to their classically reproductive functions, steroids regulate the immune system. This action is possible mainly due to the presence of steroid receptors in the different immune cell types. Much evidence suggests that the ... ...

    Abstract In vertebrates, in addition to their classically reproductive functions, steroids regulate the immune system. This action is possible mainly due to the presence of steroid receptors in the different immune cell types. Much evidence suggests that the immune system of fish is vulnerable to xenosteroids, which are ubiquitous in the aquatic environment. In vivo and in vitro assays have amply demonstrated that oestrogens interfere with both the innate and the adaptive immune system of fish by regulating the main leukocyte activities and transcriptional genes. They activate nuclear oestrogen receptors and/or G-protein coupled oestrogen receptor. Less understood is the role of androgens in the immune system, mainly due to the complexity of the transcriptional regulation of androgen receptors in fish. The aim of this manuscript is to review our present knowledge concerning the effect of sex steroid hormones and the presence of their receptors on fish leukocytes, taking into consideration that the studies performed vary as regard the fish species, doses, exposure protocols and hormones used. Moreover, we also include evidence of the probable role of progestins in the regulation of the immune system of fish.
    Keywords G-proteins ; adaptive immunity ; androgen receptors ; androgens ; aquatic environment ; estrogen receptors ; estrogens ; fish ; genes ; in vitro studies ; leukocytes ; progestational hormones ; steroid hormones ; steroids ; transcription (genetics)
    Language English
    Dates of publication 2018-0109
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2661517-4
    ISSN 2079-7737
    ISSN 2079-7737
    DOI 10.3390/biology7010009
    Database NAL-Catalogue (AGRICOLA)

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  9. Article: Role of estrogens in fish immunity with special emphasis on GPER1

    Cabas, Isabel / Alfonsa García-Ayala / Elena Chaves-Pozo / Victoriano Mulero

    Developmental and comparative immunology. 2018 Dec., v. 89

    2018  

    Abstract: It is well accepted that estrogens, the primary female sex hormones, play a key role in modulating different aspects of the immune response. Moreover, estrogens have been linked with the sexual dimorphism observed in some immune disorders, such as ... ...

    Abstract It is well accepted that estrogens, the primary female sex hormones, play a key role in modulating different aspects of the immune response. Moreover, estrogens have been linked with the sexual dimorphism observed in some immune disorders, such as chronic inflammatory and autoimmune diseases. Nevertheless, their effects are often controversial and depend on several factors, such as the pool of estrogen receptors (ERs) involved in the response. Their classical mode of action is through nuclear ERs, which act as transcription factors, promoting the regulation of target genes. However, it has long been noted that some of the estrogen-mediated effects cannot be explained by these classical receptors, since they are rapid and mediated by non-genomic signaling pathways. Hence, the interest in membrane ERs, especially in G protein-coupled estrogen receptor 1 (GPER1), has grown in recent years. Although the presence of nuclear ERs, and ER signaling, in immune cells in mammals and fish has been well documented, information on membrane ERs is much scarcer. In this context, the present manuscript aims to review our knowledge concerning the effect of estrogens on fish immunity, with special emphasis on GPER1. For example, the numerous tools developed over recent years allowed us to report for the first time that the regulation of fish granulocyte functions by estrogens through GPER1 predates the split of fish and tetrapods more than 450 million years ago, pointing to the relevance of estrogens as modulators of the immune responses, and the pivotal role of GPER1 in immunity.
    Keywords autoimmune diseases ; estrogen receptors ; estrogens ; females ; fish ; immune response ; mammals ; mechanism of action ; sexual dimorphism ; signal transduction
    Language English
    Dates of publication 2018-12
    Size p. 102-110.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 752411-0
    ISSN 1879-0089 ; 0145-305X
    ISSN (online) 1879-0089
    ISSN 0145-305X
    DOI 10.1016/j.dci.2018.08.001
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  10. Article ; Online: 17α-ethynylestradiol prevents the natural male-to-female sex change in gilthead seabream (Sparus aurata L.).

    García Hernández, M Pilar / Cabas, Isabel / Rodenas, M Carmen / Arizcun, Marta / Chaves-Pozo, Elena / Power, Deborah M / García Ayala, Alfonsa

    Scientific reports

    2020  Volume 10, Issue 1, Page(s) 20067

    Abstract: Exposure to 17α-ethynylestradiol ( ... ...

    Abstract Exposure to 17α-ethynylestradiol (EE
    MeSH term(s) Animals ; Estrogens/pharmacology ; Ethinyl Estradiol/pharmacology ; Female ; Fish Proteins/genetics ; Fish Proteins/metabolism ; Gene Expression Regulation ; Liver/drug effects ; Male ; Reproduction ; Sea Bream ; Spermatogenesis ; Testis/drug effects ; Transsexualism/genetics ; Transsexualism/prevention & control ; Vitellogenins/genetics ; Vitellogenins/metabolism
    Chemical Substances Estrogens ; Fish Proteins ; Vitellogenins ; Ethinyl Estradiol (423D2T571U)
    Language English
    Publishing date 2020-11-18
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-020-76902-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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