blastogenesis


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blastogenesis

 [blas″to-jen´ĕ-sis]
1. development of an individual from a blastema, i.e., by asexual reproduction.
2. transmission of inherited characters by the germ plasm.
3. morphological transformation of small lymphocytes into large lymphocytes (lymphoblasts) that accompanies lymphocyte activation.

blas·to·gen·e·sis

(blas'tō-jen'ĕ-sis),
1. Reproduction of unicellular organisms by budding.
2. Development of an embryo during cleavage and germ layer formation.
3. Transformation of small lymphocytes of human peripheral blood in tissue culture into large, morphologically primordial blastlike cells capable of undergoing mitosis; can be induced by various agents including phytohemagglutinin, concanavalin A, certain antigens to which the cell donor has been previously immunized, and leukocytes from an unrelated individual.
[blasto- + G. genesis, origin]

blastogenesis

/blas·to·gen·e·sis/ (blas″to-jen´ĕ-sis)
1. development of an individual from a blastema, i.e., by asexual reproduction.
2. transmission of inherited characters by the germ plasm.
3. morphological transformation of small lymphocytes into larger cells resembling blast cells on exposure to phytohemagglutinin or to antigens to which the donor is immunized.blastogenet´icblastogen´ic

blastogenesis

(blăs′tə-jĕn′ĭ-sĭs)
n.
1. The transformation of small lymphocytes into larger cells that are capable of undergoing mitosis.
2. The development of an embryo during cleavage and germ layer formation.
3. Reproduction of an organism by budding.

blas′to·ge·net′ic (-jə-nĕt′ĭk), blas′to·gen′ic (-jĕn′ĭk) adj.

blastogenesis

[blas′tōjen′əsis]
Etymology: Gk, blastos + genein, to produce
1 asexual reproduction by budding.
2 the transmission of hereditary characteristics by the germ plasm. Compare pangenesis.
3 the early development of an embryo during cleavage and formation of the germ layers.
4 the process of transforming small lymphocytes in tissue culture into large, blastlike cells by exposure to phytohemagglutinin or other substances, often for the purpose of inducing mitosis. blastogenetic, adj.

blastogenesis

(1) The theory that inherited characteristics are transmitted from parent to offspring by germ plasm. Similar to the concept of embryogenesis.
(2) Reproduction of an organism by budding.
(3) The transformation of small lymphocytes into larger cells that are capable of undergoing mitosis. See blast transformation.
(4) The development of an embryo during cleavage and germ layer formation.

blas·to·gen·e·sis

(blas'tō-jen'ĕ-sis)
1. Reproduction of unicellular organisms by budding.
2. Development of an embryo during cleavage and germ layer formation.
3. Transformation of small lymphocytes of human peripheral blood in tissue culture into large, morphologically primordial blastlike cells capable of undergoing mitosis.
[blasto- + G. genesis, origin]

blastogenesis

1. development of an individual from a blastema, i.e. by asexual reproduction.
2. transmission of inherited characters by the germ plasm.
3. morphological transformation of small lymphocytes into larger cells resembling blast cells on exposure to phytohemagglutin, or to antigens to which the donor is immunized.
References in periodicals archive ?
The first visible sign of blastogenesis is the appearance of a bud disk, a thickened disk of cells on the ventral side of the atrial epithelium of a first-generation bud, just before the stage where its stigmata become perforated.
Suppression of lymphocyte blastogenesis in cows with puerperal metritis and mastitis.
9) Otra de las propuestas para la etiologia de estas anomalias es un defecto en la blastogenesis, en la diferenciacion del mesodermo.
IL-2 mRNA induction is one of the earliest events during blastogenesis of PBMCs (27); thus, our findings correspond to results obtained in the PHA-induced [[sup.
2+] in the effect of low frecuency electromagnetic field on the blastogenesis of human lymphocytes.
For blastogenesis assays, PBMCS were cultured with CP (10 [micro]g/mL), RBLS (5 [micro]g/mL), or phytohemagglutinin (10 [micro]g/mL).
Immersion of chinook salmon eggs in a nominal concentration of o,p'-dichlorodiphenyldichloroethylene (o,p'-DDE; 10 ppm) for 1 hr at fertilization followed by immersion in the same dose for 2 hr at hatch resulted in a significant reduction in the ability of splenic leukocytes from fish 1 year after treatment to undergo blastogenesis upon in vitro stimulation with lipopolysaccharide.
Stress-induced corticosteroids inhibit immune function further by also causing eosinopenia, T-cell blastogenesis, granulocytosis, and inhibited basophil, mast cell, and neutrophil function.
Fetal alcohol and immunity: Depression of mitogen induced lymphocyte blastogenesis.
Al comparar los efectos de hablar o escribir sobre topicos triviales, en contraste con topicos emocionales traumaticos, se ha encontrado que en el segundo caso ocurren cambios asociados a una notable disminucion en la frecuencia de visitas al medico, asi como ciertos efectos beneficos en la funcion inmune, que incluye a las celulas de crecimiento ayudantes T (utilizando un procedimiento de blastogenesis con un mitogeno, la fitohemaglutinina), la respuesta a los anticuerpos del virus Epstein-Barr y la respuesta a los anticuerpos de las vacunas de la hepatitis B.
effects on lymphocyte blastogenesis in response to either B- or T-cell