scholarly journals Resistance to Paracoccidioides brasiliensis in mice is controlled by a single dominant autosomal gene.

1987 ◽  
Vol 55 (8) ◽  
pp. 1919-1923 ◽  
Author(s):  
V L Calich ◽  
E Burger ◽  
S S Kashino ◽  
R A Fazioli ◽  
L M Singer-Vermes
Keyword(s):  
Paracoccidioides Brasiliensis ◽  
Autosomal Gene

Two Typical Hereditary Charts of Congenital Factor VII Deficiency

1961 ◽  
Vol 05 (01) ◽  
pp. 087-092 ◽  
Author(s):  
F. J Cleton ◽  
E. A Loeliger
Keyword(s):  
Factor Vii ◽  
Autosomal Gene ◽  
Homozygous State ◽  
Recessive Character ◽  
Factor Vii Deficiency ◽  
Complete Penetrance ◽  
Coagulation Defect ◽  
Haemorrhagic Diathesis ◽  
Intermediate Expression ◽  
Congenital Factor

SummaryThe inheritance of congenital factor VII deficiency was investigated in 2 unrelated families. Out of 68 individuals, 4 (3 proven and 1 highly probable) were found to have severe factor VII deficiency (<C 0.1% factor VII), and 29 appeared to be heterozygotes (30—60% factor VII). The coagulation defect is due to an autosomal gene of intermediate expression and complete penetrance. The recessive character of the haemorrhagic diathesis due to the homozygous state for the abnormal gene is clearly demonstrated.

Recognition of Fungal Components by the Host Immune System

2020 ◽  
Vol 21 (3) ◽  
pp. 245-264 ◽  
Author(s):  
Laura C. García-Carnero ◽  
José A. Martínez-Álvarez ◽  
Luis M. Salazar-García ◽  
Nancy E. Lozoya-Pérez ◽  
Sandra E. González-Hernández ◽  
...  
Keyword(s):  
Immune System ◽  
Histoplasma Capsulatum ◽  
Paracoccidioides Brasiliensis ◽  
Sporothrix Schenckii ◽  
Clinical Importance ◽  
Pathogenic Fungi ◽  
Diagnostic Tools ◽  
Future Research ◽  
Host Immune System ◽  
Fungal Antigens

: By being the first point of contact of the fungus with the host, the cell wall plays an important role in the pathogenesis, having many molecules that participate as antigens that are recognized by immune cells, and also that help the fungus to establish infection. The main molecules reported to trigger an immune response are chitin, glucans, oligosaccharides, proteins, melanin, phospholipids, and others, being present in the principal pathogenic fungi with clinical importance worldwide, such as Histoplasma capsulatum, Paracoccidioides brasiliensis, Aspergillus fumigatus, Candida albicans, Cryptococcus neoformans, Blastomyces dermatitidis, and Sporothrix schenckii. Knowledge and understanding of how the immune system recognizes and responds to fungal antigens are relevant for the future research and development of new diagnostic tools and treatments for the control of mycosis caused by these fungi.

scholarly journals Metabolic Peculiarities of Paracoccidioides brasiliensis Dimorphism as Demonstrated by iTRAQ Labeling Proteomics

2019 ◽  
Vol 10 ◽  
Author(s):  
Danielle Silva Araújo ◽  
Maristela Pereira ◽  
Igor Godinho Portis ◽  
Agenor de Castro Moreira dos Santos Junior ◽  
Wagner Fontes ◽  
...  
Keyword(s):  
Paracoccidioides Brasiliensis ◽  
Itraq Labeling

Brazilian Red Propolis shows antifungal and immunomodulatory activities against Paracoccidioides brasiliensis

2021 ◽  
pp. 114181
Author(s):  
Lauana Aparecida Santos ◽  
Pedro Luiz Rosalen ◽  
Nayara Andrade Dias ◽  
Julianne Caravita Grisolia ◽  
Bruno José Nascimento Gomes ◽  
...  
Keyword(s):  
Paracoccidioides Brasiliensis

scholarly journals Protective Response in Experimental Paracoccidioidomycosis Elicited by Extracellular Vesicles Containing Antigens of Paracoccidioides brasiliensis

Cells ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1813
Author(s):  
Ludmila Matos Baltazar ◽  
Gabriela Fior Ribeiro ◽  
Gustavo J. Freitas ◽  
Celso Martins Queiroz-Junior ◽  
Caio Tavares Fagundes ◽  
...  
Keyword(s):  
Extracellular Vesicles ◽  
Treatment Effectiveness ◽  
Ex Vivo ◽  
Paracoccidioides Brasiliensis ◽  
Systemic Disease ◽  
Host Immune System ◽  
Antigen Delivery ◽  
Activated T Lymphocytes ◽  
Cell Mobilization

Paracoccidioidomycosis (PCM) is a systemic disease caused by Paracoccidioides spp. PCM is endemic in Latin America and most cases are registered in Brazil. This mycosis affects mainly the lungs, but can also spread to other tissues and organs, including the liver. Several approaches have been investigated to improve treatment effectiveness and protection against the disease. Extracellular vesicles (EVs) are good antigen delivery vehicles. The present work aims to investigate the use of EVs derived from Paracoccidioides brasiliensis as an immunization tool in a murine model of PCM. For this, male C57BL/6 were immunized with two doses of EVs plus adjuvant and then infected with P. brasiliensis. EV immunization induced IgM and IgG in vivo and cytokine production by splenocytes ex vivo. Further, immunization with EVs had a positive effect on mice infected with P. brasiliensis, as it induced activated T lymphocytes and NKT cell mobilization to the infected lungs, improved production of proinflammatory cytokines and the histopathological profile, and reduced fungal burden. Therefore, the present study shows a new role for P. brasiliensis EVs in the presence of adjuvant as modulators of the host immune system, suggesting their utility as immunizing agents.

scholarly journals Ecology of Paracoccidioides brasiliensis, P. lutzii and related species: infection in armadillos, soil occurrence and mycological aspects

2018 ◽  
Author(s):  
Marluce Francisca Hrycyk ◽  
Hans Garcia Garces ◽  
Sandra de Moraes Gimenes Bosco ◽  
Sílvio Luis de Oliveira ◽  
Sílvio Alencar Marques ◽  
...  
Keyword(s):  
Related Species ◽  
Paracoccidioides Brasiliensis

Paracoccidioidomycosis due to Paracoccidioides brasiliensis S1 associated with acquired immunodeficiency syndrome: A case report

2020 ◽  
Author(s):  
Paulo Mendes Peçanha ◽  
Isabela Cruz Bahiense ◽  
Wdson Luis Lima Kruschewsky ◽  
Cláudia Biasutti ◽  
Carlos Urbano Gonçalves Ferreira Júnior ◽  
...  
Keyword(s):  
Case Report ◽  
Acquired Immunodeficiency Syndrome ◽  
Paracoccidioides Brasiliensis ◽  
Acquired Immunodeficiency ◽  
Immunodeficiency Syndrome

scholarly journals Drosophila melanogaster male germ line-specific transcripts with autosomal and Y-linked genes.

Genetics ◽  
1993 ◽  
Vol 134 (1) ◽  
pp. 293-308 ◽  
Author(s):  
S R Russell ◽  
K Kaiser
Keyword(s):  
Drosophila Melanogaster ◽  
Y Chromosome ◽  
Germ Line ◽  
Stop Codon ◽  
Chromatin Condensation ◽  
Sperm Chromatin ◽  
Autosomal Gene ◽  
Cdna Clones ◽  
Autosomal Locus ◽  
Functional Protein

Abstract We have identified of set of related transcripts expressed in the germ line of male Drosophila melanogaster. Surprisingly, while one of the corresponding genes is autosomal the remainder are located on the Y chromosome. The autosomal locus, at 77F on chromosome arm 3L, corresponds to the previously described transcription unit 18c, located in the first intron of the gene for an RI subunit of cAMP-dependent protein kinase. The Y chromosome copies have been mapped to region h18-h19 on the cytogenetic map of the Y outside of any of the regions required for male fertility. In contrast to D. melanogaster, where Y-linked copies were found in nine different wild-type strains, no Y-linked copies were found in sibling species. Several apparently Y-derived cDNA clones and one Y-linked genomic clone have been sequenced. The Y-derived genomic DNA shares the same intron/exon structure as the autosomal copy as well as related flanking sequences suggesting that it transposed to the Y from the autosomal locus. However, this particular Y-linked copy cannot encode a functional polypeptide due to a stop codon at amino acid position 72. Divergence among five different cDNA clones ranges from 1.5 to 6% and includes a large number of third position substitutions. We have not yet obtained a full-length cDNA from a Y-linked gene and therefore cannot conclude that the D. melanogaster Y chromosome contains functional protein-coding genes. The autosomal gene encodes a predicted polypeptide with 45% similarity to histones of the H5 class and more limited similarity to cysteine-rich protamines. This protein may be a distant relative of the histone H1 family perhaps involved in sperm chromatin condensation.

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