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  1. Article ; Online: A close shave: How SARS-CoV-2 induces the loss of cilia.

    Fonseca, Barbara F / Chakrabarti, Lisa A

    The Journal of cell biology

    2022  Volume 221, Issue 7

    Abstract: Wang et al. report in this issue (2022. J. Cell Biol.https://doi.org/10.1083/jcb.202108015) that the SARS-CoV-2 protein ORF10 increases the activity of the E3 ligase CUL2ZYG11B, leading to the degradation of multiple ciliary proteins. The resulting loss ... ...

    Abstract Wang et al. report in this issue (2022. J. Cell Biol.https://doi.org/10.1083/jcb.202108015) that the SARS-CoV-2 protein ORF10 increases the activity of the E3 ligase CUL2ZYG11B, leading to the degradation of multiple ciliary proteins. The resulting loss of cilia may facilitate the spread of SARS-CoV-2 in the respiratory tree.
    MeSH term(s) COVID-19/pathology ; Cell Cycle Proteins ; Cilia/pathology ; Cullin Proteins ; Genes, Viral ; Humans ; Proteins/metabolism ; SARS-CoV-2 ; Ubiquitin-Protein Ligases/metabolism
    Chemical Substances CUL2 protein, human ; Cell Cycle Proteins ; Cullin Proteins ; Proteins ; ZYG11A protein, human ; Ubiquitin-Protein Ligases (EC 2.3.2.27)
    Language English
    Publishing date 2022-06-13
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Comment
    ZDB-ID 218154-x
    ISSN 1540-8140 ; 0021-9525
    ISSN (online) 1540-8140
    ISSN 0021-9525
    DOI 10.1083/jcb.202206023
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Editorial

    Bernardo Duarte / Célia M. Teixeira / Irene Martins / Aschwin H. Engelen / Raquel L. Costa / Janine Barbara Adams / Maria João Bebianno / Ricardo A. Melo / Vanessa F. Fonseca

    Frontiers in Marine Science, Vol

    Emerging Topics in Coastal and Transitional Ecosystems: Science, Literacy, and Innovation

    2022  Volume 9

    Keywords emerging pollutants ; marine governance ; ecosystem-based approach (EBA) ; blue economy ; ocean literacy ; Science ; Q ; General. Including nature conservation ; geographical distribution ; QH1-199.5
    Language English
    Publishing date 2022-06-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Larry Parsons: Researcher, mentor, and friend.

    Frantz, Kyle / Roberto, Marisa / Mason, Barbara / Koob, George F / Volkow, Nora / Rodriguez de Fonseca, Fernando

    Addiction biology

    2018  Volume 23, Issue 6, Page(s) 1204–1206

    Language English
    Publishing date 2018-11-28
    Publishing country United States
    Document type Editorial
    ZDB-ID 1324314-7
    ISSN 1369-1600 ; 1355-6215
    ISSN (online) 1369-1600
    ISSN 1355-6215
    DOI 10.1111/adb.12686
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Global loss of cellular m

    Vaid, Roshan / Mendez, Akram / Thombare, Ketan / Burgos-Panadero, Rebeca / Robinot, Rémy / Fonseca, Barbara F / Gandasi, Nikhil R / Ringlander, Johan / Hassan Baig, Mohammad / Dong, Jae-June / Cho, Jae Yong / Reinius, Björn / Chakrabarti, Lisa A / Nystrom, Kristina / Mondal, Tanmoy

    Genome research

    2023  Volume 33, Issue 3, Page(s) 299–313

    Abstract: Insights into host-virus interactions during SARS-CoV-2 infection are needed to understand COVID-19 pathogenesis and may help to guide the design of novel antiviral therapeutics. ...

    Abstract Insights into host-virus interactions during SARS-CoV-2 infection are needed to understand COVID-19 pathogenesis and may help to guide the design of novel antiviral therapeutics.
    MeSH term(s) Humans ; SARS-CoV-2/genetics ; COVID-19/genetics ; Methylation ; RNA ; RNA, Viral/genetics ; Methyltransferases/genetics
    Chemical Substances RNA (63231-63-0) ; RNA, Viral ; METTL3 protein, human (EC 2.1.1.62) ; Methyltransferases (EC 2.1.1.-)
    Language English
    Publishing date 2023-03-01
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1284872-4
    ISSN 1549-5469 ; 1088-9051 ; 1054-9803
    ISSN (online) 1549-5469
    ISSN 1088-9051 ; 1054-9803
    DOI 10.1101/gr.276407.121
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Recapitulating memory B cell responses in a Lymphoid Organ-Chip to evaluate mRNA vaccine boosting strategies

    Jeger-Madiot, Raphaël / Planas, Delphine / Staropoli, Isabelle / Kervevan, Jérôme / Mary, Héloïse / Collina, Camilla / Fonseca, Barbara F. / Debarnot, Hippolyte / Robinot, Rémy / Gellenoncourt, Stacy / Schwartz, Olivier / Ewart, Lorna / Bscheider, Michael / Gobaa, Samy / Chakrabarti, Lisa A.

    bioRxiv

    Abstract: Predicting the immunogenicity of candidate vaccines in humans remains a challenge. To address this issue, we developed a Lymphoid Organ-Chip (LO chip) model based on a microfluidic chip seeded with human PBMC at high density within a 3D collagen matrix. ... ...

    Abstract Predicting the immunogenicity of candidate vaccines in humans remains a challenge. To address this issue, we developed a Lymphoid Organ-Chip (LO chip) model based on a microfluidic chip seeded with human PBMC at high density within a 3D collagen matrix. Perfusion of the SARS-CoV-2 Spike protein mimicked a vaccine boost by inducing a massive amplification of Spike-specific memory B cells, plasmablast differentiation, and Spike-specific antibody secretion. Features of lymphoid tissue, including the formation of activated CD4+ T cell/B cell clusters and the emigration of matured plasmablasts, were recapitulated in the LO chip. Importantly, myeloid cells were competent at capturing and expressing mRNA vectored by lipid nanoparticles, enabling the assessment of responses to mRNA vaccines. Comparison of on-chip responses to Wuhan monovalent and Wuhan/Omicron bivalent mRNA vaccine boosts showed equivalent induction of Omicron neutralizing antibodies, pointing at immune imprinting as reported in vivo. The LO chip thus represents a versatile platform suited to the preclinical evaluation of vaccine boosting strategies.
    Keywords covid19
    Language English
    Publishing date 2024-02-02
    Publisher Cold Spring Harbor Laboratory
    Document type Article ; Online
    DOI 10.1101/2024.02.02.578553
    Database COVID19

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  6. Article ; Online: Respective contribution of the cephalic neural crest and mesoderm to SIX1-expressing head territories in the avian embryo.

    Fonseca, Barbara F / Couly, Gérard / Dupin, Elisabeth

    BMC developmental biology

    2017  Volume 17, Issue 1, Page(s) 13

    Abstract: Background: Vertebrate head development depends on a series of interactions between many cell populations of distinct embryological origins. Cranial mesenchymal tissues have a dual embryonic source: - the neural crest (NC), which generates most of ... ...

    Abstract Background: Vertebrate head development depends on a series of interactions between many cell populations of distinct embryological origins. Cranial mesenchymal tissues have a dual embryonic source: - the neural crest (NC), which generates most of craniofacial skeleton, dermis, pericytes, fat cells, and tenocytes; and - the mesoderm, which yields muscles, blood vessel endothelia and some posterior cranial bones. The molecular players that orchestrate co-development of cephalic NC and mesodermal cells to properly construct the head of vertebrates remain poorly understood. In this regard, Six1 gene, a vertebrate homolog of Drosophila Sine Oculis, is known to be required for development of ear, nose, tongue and cranial skeleton. However, the embryonic origin and fate of Six1-expressing cells have remained unclear. In this work, we addressed these issues in the avian embryo model by using quail-chick chimeras, cephalic NC cultures and immunostaining for SIX1.
    Results: Our data show that, at early NC migration stages, SIX1 is expressed by mesodermal cells but excluded from the NC cells (NCC). Then, SIX1 becomes widely expressed in NCC that colonize the pre-otic mesenchyme. In contrast, in the branchial arches (BAs), SIX1 is present only in mesodermal cells that give rise to jaw muscles. At later developmental stages, the distribution of SIX1-expressing cells in mesoderm-derived tissues is consistent with a possible role of this factor in the myogenic program of all types of head muscles, including pharyngeal, extraocular and tongue muscles. In NC derivatives, SIX1 is notably expressed in perichondrium and chondrocytes of the nasal septum and in the sclera, although other facial cartilages such as Meckel's were negative at the stages considered. Moreover, in cephalic NC cultures, chondrocytes and myofibroblasts, not the neural and melanocytic cells express SIX1.
    Conclusion: The present results point to a dynamic tissue-specific expression of SIX1 in a variety of cephalic NC- and mesoderm-derived cell types and tissues, opening the way for further analysis of Six1 function in the coordinated development of these two cellular populations during vertebrate head formation.
    MeSH term(s) Animals ; Embryo, Nonmammalian/embryology ; Mesoderm/embryology ; Neural Crest/embryology ; Quail/embryology
    Language English
    Publishing date 2017-10-10
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1471-213X
    ISSN (online) 1471-213X
    DOI 10.1186/s12861-017-0155-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Telomeric repeat-containing RNA is dysregulated in acute myeloid leukemia.

    Catto, Luiz Fernando B / Zanelatto, Leonardo C / Donaires, Flavia S / de Carvalho, Vinicius S / Santana, Bárbara A / Pinto, André L / Fantacini, Daianne / de Souza, Lucas Eduardo B / Fonseca, Natasha P / Telho, Bruno S / Ayrosa Madeira, Maria Isabel / Barbosa Pagnano, Katia Borgia / Firmato, Ana Beatriz / Fagundes, Evandro Maranhão / Higashi, Marcia / Nunes, Elenaide Coutinho / Traina, Fabiola / Lobo de F Pontes, Lorena / Rego, Eduardo M /
    Calado, Rodrigo T

    Blood advances

    2023  Volume 7, Issue 22, Page(s) 7067–7078

    Abstract: TERRA (telomeric repeat-containing RNA) is a class of long noncoding RNAs transcribed from subtelomeric and telomeric regions. TERRA binds to the subtelomeric and telomeric DNA-forming R-loops (DNA-RNA hybrids), which are involved in telomere maintenance ...

    Abstract TERRA (telomeric repeat-containing RNA) is a class of long noncoding RNAs transcribed from subtelomeric and telomeric regions. TERRA binds to the subtelomeric and telomeric DNA-forming R-loops (DNA-RNA hybrids), which are involved in telomere maintenance and telomerase function, but the role of TERRA in human cells is not well characterized. Here, we comprehensively investigated for the first time TERRA expression in primary human hematopoietic cells from an exploratory cohort of patients with acute myeloid leukemia (AML), patients with acute lymphoblastic leukemia (ALL), patients with telomere biology disorder (TBD), and healthy subjects. TERRA expression was repressed in primary human hematopoietic cells, including healthy donors, patients with ALL, and patients with TBD, irrespective of their telomere length, except for AML. A second cohort comprising 88 patients with AML showed that TERRA was overexpressed in an AML subgroup also characterized by higher R-loop formation, low TERT and RNAseH2 expression, and a paucity of somatic splicing factor mutations. Telomere length did not correlate with TERRA expression levels. To assess the role of TERRA R-loops in AML, we induced R-loop depletion by increasing RNAseH1 expression in 2 AML cell lines. Decreased TERRA R-loops in AML cell lines resulted in increased chemosensitivity to cytarabine. Our findings indicate that TERRA is uniformly repressed in primary human hematopoietic cells but abnormally expressed in an AML subset with low telomerase.
    MeSH term(s) Humans ; Telomerase ; Leukemia, Myeloid, Acute/genetics ; Cell Line ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; RNA, Long Noncoding ; DNA
    Chemical Substances Telomerase (EC 2.7.7.49) ; RNA, Long Noncoding ; DNA (9007-49-2)
    Language English
    Publishing date 2023-09-29
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2915908-8
    ISSN 2473-9537 ; 2473-9529
    ISSN (online) 2473-9537
    ISSN 2473-9529
    DOI 10.1182/bloodadvances.2023010658
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Influence of previous Zika virus infection on acute dengue episode.

    Estofolete, Cassia F / Versiani, Alice F / Dourado, Fernanda S / Milhim, Bruno H G A / Pacca, Carolina C / Silva, Gislaine C D / Zini, Nathalia / Santos, Barbara F Dos / Gandolfi, Flora A / Mistrão, Natalia F B / Garcia, Pedro H C / Rocha, Rodrigo S / Gehrke, Lee / Bosch, Irene / Marques, Rafael E / Teixeira, Mauro M / da Fonseca, Flavio G / Vasilakis, Nikos / Nogueira, Maurício L

    PLoS neglected tropical diseases

    2023  Volume 17, Issue 11, Page(s) e0011710

    Abstract: Background: The co-circulation of flaviviruses in tropical regions has led to the hypothesis that immunity generated by a previous dengue infection could promote severe disease outcomes in subsequent infections by heterologous serotypes. This study ... ...

    Abstract Background: The co-circulation of flaviviruses in tropical regions has led to the hypothesis that immunity generated by a previous dengue infection could promote severe disease outcomes in subsequent infections by heterologous serotypes. This study investigated the influence of antibodies generated by previous Zika infection on the clinical outcomes of dengue infection.
    Methodology/principal findings: We enrolled 1,043 laboratory confirmed dengue patients and investigated their prior infection to Zika or dengue. Severe forms of dengue disease were more frequent in patients with previous Zika infection, but not in those previously exposed to dengue.
    Conclusions/significance: Our findings suggest that previous Zika infection may represent a risk factor for subsequent severe dengue disease, but we did not find evidence of antibody-dependent enhancement (higher viral titer or pro-inflammatory cytokine overexpression) contributing to exacerbation of the subsequent dengue infection.
    MeSH term(s) Humans ; Zika Virus Infection ; Dengue ; Dengue Virus ; Antibodies, Viral ; Zika Virus ; Cross Reactions
    Chemical Substances Antibodies, Viral
    Language English
    Publishing date 2023-11-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2429704-5
    ISSN 1935-2735 ; 1935-2735
    ISSN (online) 1935-2735
    ISSN 1935-2735
    DOI 10.1371/journal.pntd.0011710
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Effects of vitamin D supplementation on glycemic control of children and adolescents with type 1 diabetes mellitus: a systematic review.

    Nascimento, Bárbara Folino / Moreira, Carolina F F / da Fonseca, Eliana R / Fedeszen, Pamela M K / de Paula, Tatiana P / de Sena, Ana Silvia S / de Almeida, Nathália F A / Bandeira Filho, Orlando C de S / Curval, Daniella R / Padilha, Patricia de C

    Journal of pediatric endocrinology & metabolism : JPEM

    2022  Volume 35, Issue 8, Page(s) 973–988

    Abstract: Objectives: To evaluate the effect of vitamin D supplementation on glycemic control in children and adolescents with T1DM.: Content: A systematic search was conducted of the Medline/PubMed, Web of Science, Embase, BVS/Lilacs, Cochrane Library, Scopus, ...

    Abstract Objectives: To evaluate the effect of vitamin D supplementation on glycemic control in children and adolescents with T1DM.
    Content: A systematic search was conducted of the Medline/PubMed, Web of Science, Embase, BVS/Lilacs, Cochrane Library, Scopus, Cinahl, Food Science, and FSTA databases. Two reviewers independently extracted article data and assessed quality.
    Summary: A total of 1,613 eligible articles were retrieved, ten of which met the selection criteria: eight clinical trials, one retrospective cohort study, and one cross-sectional study. Regarding the cutoff points used to classify vitamin D status, most of the studies set deficiency at 25-hydroxyvitamin D <20 ng/mL, sufficiency at ≥30 ng/mL, and insufficiency as the interval between these values. Regarding intervention strategies, most used cholecalciferol for supplementation, but there was great variation in the dose and supplementation time. When evaluating the effect of vitamin D supplementation on HbA1c, a significant improvement in glycemic control was observed in 50% of the studies. However, only one of these studies was classified as being of positive methodological quality, with three having their quality classified as neutral and one as negative.
    Outlook: There is yet no consistent evidence on the effect of vitamin D supplementation on glycemic control as an adjuvant in the treatment of children and adolescents with T1DM.
    MeSH term(s) Adolescent ; Child ; Cross-Sectional Studies ; Diabetes Mellitus, Type 1/drug therapy ; Dietary Supplements ; Glycemic Control ; Humans ; Retrospective Studies ; Vitamin D ; Vitamin D Deficiency/drug therapy
    Chemical Substances Vitamin D (1406-16-2)
    Language English
    Publishing date 2022-07-18
    Publishing country Germany
    Document type Journal Article ; Review ; Systematic Review
    ZDB-ID 1231070-0
    ISSN 2191-0251 ; 0334-018X
    ISSN (online) 2191-0251
    ISSN 0334-018X
    DOI 10.1515/jpem-2022-0044
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Respective contribution of the cephalic neural crest and mesoderm to SIX1-expressing head territories in the avian embryo

    Barbara F. Fonseca / Gérard Couly / Elisabeth Dupin

    BMC Developmental Biology, Vol 17, Iss 1, Pp 1-

    2017  Volume 15

    Abstract: Abstract Background Vertebrate head development depends on a series of interactions between many cell populations of distinct embryological origins. Cranial mesenchymal tissues have a dual embryonic source: - the neural crest (NC), which generates most ... ...

    Abstract Abstract Background Vertebrate head development depends on a series of interactions between many cell populations of distinct embryological origins. Cranial mesenchymal tissues have a dual embryonic source: - the neural crest (NC), which generates most of craniofacial skeleton, dermis, pericytes, fat cells, and tenocytes; and - the mesoderm, which yields muscles, blood vessel endothelia and some posterior cranial bones. The molecular players that orchestrate co-development of cephalic NC and mesodermal cells to properly construct the head of vertebrates remain poorly understood. In this regard, Six1 gene, a vertebrate homolog of Drosophila Sine Oculis, is known to be required for development of ear, nose, tongue and cranial skeleton. However, the embryonic origin and fate of Six1-expressing cells have remained unclear. In this work, we addressed these issues in the avian embryo model by using quail-chick chimeras, cephalic NC cultures and immunostaining for SIX1. Results Our data show that, at early NC migration stages, SIX1 is expressed by mesodermal cells but excluded from the NC cells (NCC). Then, SIX1 becomes widely expressed in NCC that colonize the pre-otic mesenchyme. In contrast, in the branchial arches (BAs), SIX1 is present only in mesodermal cells that give rise to jaw muscles. At later developmental stages, the distribution of SIX1-expressing cells in mesoderm-derived tissues is consistent with a possible role of this factor in the myogenic program of all types of head muscles, including pharyngeal, extraocular and tongue muscles. In NC derivatives, SIX1 is notably expressed in perichondrium and chondrocytes of the nasal septum and in the sclera, although other facial cartilages such as Meckel’s were negative at the stages considered. Moreover, in cephalic NC cultures, chondrocytes and myofibroblasts, not the neural and melanocytic cells express SIX1. Conclusion The present results point to a dynamic tissue-specific expression of SIX1 in a variety of cephalic NC- and mesoderm-derived cell types and tissues, opening the way for further analysis of Six1 function in the coordinated development of these two cellular populations during vertebrate head formation.
    Keywords SIX1 ; Neural crest ; Mesoderm ; Quail-chick chimera ; Branchial arch ; Biology (General) ; QH301-705.5
    Subject code 612
    Language English
    Publishing date 2017-10-01T00:00:00Z
    Publisher BMC
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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