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Production of Apolipoprotein C-III Knockout Rabbits using Zinc Finger Nucleases
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Published on: November 18, 2013

A novel functional rabbit IL-7 isoform.

Basile T Siewe1, Susan L Kalis, Pedro J Esteves

  • 1Department of Microbiology and Immunology, Stritch School of Medicine, Loyola University Chicago, 2160 South First Avenue, Maywood, IL 60153, USA.

Developmental and Comparative Immunology
|March 23, 2010
PubMed
Summary
This summary is machine-generated.

Researchers discovered a new rabbit interleukin-7 (IL-7) isoform, IL-7II, essential for B and T cell development. This novel isoform, generated by alternative splicing, binds lymphocytes and supports progenitor cell differentiation.

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MultiBac System-Based Purification and Biophysical Characterization of Human Myosin-7a
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MultiBac System-Based Purification and Biophysical Characterization of Human Myosin-7a

Published on: August 23, 2024

Area of Science:

  • Immunology
  • Molecular Biology
  • Developmental Biology

Background:

  • Interleukin-7 (IL-7) is crucial for lymphocyte development and homeostasis in mice and humans.
  • IL-7 expression in rabbit bone marrow supports B and T cell lineage differentiation in vitro.
  • Previous research established the foundational role of IL-7 in immune cell development.

Purpose of the Study:

  • To identify and characterize a novel isoform of IL-7 in rabbits.
  • To investigate the functional properties of this new IL-7 isoform in lymphocyte development.

Main Methods:

  • Identification of a novel rabbit IL-7 isoform (IL-7II) through molecular analysis.
  • Production of recombinant IL-7II (rIL-7II) for functional assays.
  • Assessment of rIL-7II binding to lymphocytes via IL-7 receptor (IL-7R) and STAT5 phosphorylation.
  • Evaluation of rIL-7II's effect on bone marrow progenitor cell proliferation and differentiation.

Main Results:

  • A novel rabbit IL-7 isoform, IL-7II, was identified, generated by alternative splicing.
  • rIL-7II binds to lymphocytes through IL-7R and induces STAT5 phosphorylation.
  • rIL-7II promotes the proliferation and differentiation of bone marrow progenitor cells into B and T lineage cells.
  • The alternative exon (exon 2b) responsible for IL-7II is conserved in several mammalian orders but absent in rodents and primates.

Conclusions:

  • The novel rabbit IL-7II isoform plays a significant role in B and T cell development.
  • IL-7II represents a distinct functional variant of IL-7 with implications for understanding immune development across species.
  • The evolutionary conservation pattern of exon 2b provides insights into the diversification of IL-7 function in mammals.