Effect of splenectomy on the humoral immune response in the lizard,Scincus scincus

Mf, Hussein; Badir, N.; Ridi, Rashika El; El-Deeb, Somaya

doi:10.1007/bf01955118

Cited by 12 publications

(2 citation statements)

References 11 publications

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“…However, IgM likely plays a role in mucosal responses, owing to its presence in gut mucus and its role as secretory Ig (66, 68). Splenectomy abrogates the humoral response, which demonstrates the functional importance of the spleen in immune responses in the lizard Scincus scincus (78). Notably, the spleen is subject to seasonal variation in the snake Psammophis schokari : The white pulp is involuted during summer, and winter slows the immune response (79).…”

Section: Reptilian B Cellsmentioning

confidence: 93%

Evolution of B Cell Immunity

Parra

Takizawa

Sunyer

2013

Annu. Rev. Anim. Biosci.

121

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Two types of adaptive immune strategies are known to have evolved in vertebrates: the VLR-based system, which is present in jawless organisms and is mediated by VLRA and VLRB lymphocytes, and the BCR/TCR-based system, which is present in jawed species and is provided by B and T cell receptors expressed on B and T cells, respectively. Here we summarize features of B cells and their predecessors in the different animal phyla, focusing the review on B cells from jawed vertebrates. We point out the critical role of nonclassical species and comparative immunology studies in the understanding of B cell immunity. Because nonclassical models include species relevant to veterinary medicine, basic science research performed in these animals contributes to the knowledge required for the development of more efficacious vaccines against emerging pathogens.

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Section: Reptilian B Cellsmentioning

confidence: 93%

Evolution of B Cell Immunity

Parra

Takizawa

Sunyer

2013

Annu. Rev. Anim. Biosci.

121

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“…Whereas, early date of sowing (late October and early November) significantly increased vegetative growth, seed yield and its quality . 6,7,8 However, each delay in sowing date beyond mid November resulted steadily reduction in growth and yield . Attia et al reported that sowing field bean in the 7,9,10 11 intermediate date (10th November) produced highest values of seed yield and its components and high seed quality traits ranked by early (20th October) then late planting dates (1st December).…”

Section: Introductionmentioning

confidence: 99%

Rate of Variations Between Field Bean Cultivars Due to Sowing Dates and Foliar Spraying Treatments

Abido¹,

Seadh²

2014

Science International

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Background: Shedding phenomena of field bean plant usually took place in serious values especially for buds, flowers and immature pods leading to a great reduction in seed yield. Thus, the main objective of this study was to study the performance of some field bean cultivars under sowing dates and foliar treatments. Methods: Field experiments were carried out during 2011-2012 and 2012-2013 seasons to find out the performance of cultivars (Sakha 1, Sakha 2 and Giza 3 improved) under sowing dates (15th October, 1st November and 15th November) and foliar treatments (without, spraying with water, yeast extract, GA and mixture of yeast extract+GA ). Each sowing date was performed

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Immunology of Reptiles

Rios

2015

Encyclopedia of Life Sciences

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Reptiles tend to have a broad innate immune response followed by a more moderate adaptive response, and as an ectotherm, their immune response is strongly affected by temperature. The innate immune responses in reptiles encompass a diverse group of molecules and cells that includes non‐specific leukocytes, lysozymes, antimicrobial peptides, the complement pathway and fever. The adaptive response involves both T and B cells; however, reptile humoral responses are much less robust than mammalian responses. Thus, reptiles may rely more heavily on a natural antibody response. The slower adaptive response may be because reptiles lack lymph nodes and do not form germinal centres. Phagocytic B cells have also been identified in reptiles. Studies of the reptilian immune system may contribute to our understanding of the evolution of the immune system as well as to the fields of conservation biology, ecological immunology and human medicine. Key Concepts Reptiles have a broad innate immune response able to encompass a variety of pathogens followed by a specific adaptive response. Because reptiles are ectothermic, temperature has a strong effect on immune responses. Seasonal variation in structure and function of the immune system in reptiles is common. As the only ectothermic amniotes, reptiles provide vital information on the evolution of the immune systems.

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Effect of splenectomy on the humoral immune response in the lizard,Scincus scincus

Abstract: Adult splenectomy in the lizard, Scincus scincus, did not affect humoral immune response to rat erythrocytes until 30 days post-immunization, but severely depressed subsequent antibody production.

Cited by 12 publications

References 11 publications

Evolution of B Cell Immunity

Evolution of B Cell Immunity

Rate of Variations Between Field Bean Cultivars Due to Sowing Dates and Foliar Spraying Treatments

Immunology of Reptiles

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