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Antisense inhibition of low-affinity nerve growth factor receptor in kidney cultures: Power and pitfalls

Identifieur interne : 004480 ( Main/Exploration ); précédent : 004479; suivant : 004481

Antisense inhibition of low-affinity nerve growth factor receptor in kidney cultures: Power and pitfalls

Auteurs : K. Sainio [Finlande] ; M. Saarma [Finlande] ; D. Nonclercq [Finlande] ; L. Paulin [Finlande] ; H. Sariola [Finlande]

Source :

RBID : ISTEX:5F2D5D5C0C3E3B218360DB4910C7D7BEEFCABBB1

English descriptors

Abstract

Summary: 1. Antisense inhibition of gene expression implies that the expression of the target protein is selectively inhibited at either the translational or the transcriptional level by complementary DNA or RNA constructs that are antiparallel to the target sequence. The antisense inhibition strategy provides means to study the roles of individual proteins and has, in spite of its limitations, gained a wide range of both therapeutic and experimental applications. 2. In developmental biology, protein expression has been selectively inhibited by the use of antisense gene transfection and by antisense deoxyoligonucleotides. The transfectability of embryonic tissues is variable, but in general fetal and embryonic cells take up foreign DNA relatively efficiently, in particular, short deoxyoligonucleotides that penetrate mesenchymal cells within a few hours without any manipulation. 3. We have now evaluated the advantages and pitfalls of antisense inhibition by deoxyoligonucleotides in organ culture and describe our experience from the inhibition of low-affinity nerve growth factor receptor expression in embryonic mouse and rat kidneys. 4. The expression of nerve growth factor receptor can be specifically inhibited by deoxyoligonucleotides, but the target sequence-dependent window of, in particular, phosphorothioate-modified oligonucleotides is quite narrow. The culture conditions affect the response to the oligonucleotides and their cellular incorporation is variable with respect to the cell type and stage of differentiation.

Url:
DOI: 10.1007/BF02088830


Affiliations:


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<term>Antisense</term>
<term>Antisense inhibition</term>
<term>Antisense oligonucleotide</term>
<term>Antisense oligonucleotide inhibition experiments</term>
<term>Antisense oligonucleotides</term>
<term>Biol</term>
<term>Culture medium</term>
<term>Deoxyoligonucleotides</term>
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<term>Embryonic</term>
<term>Embryonic kidney</term>
<term>Embryonic kidneys</term>
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<term>Embryonic mouse kidneys</term>
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<term>Inductive interaction</term>
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<term>Kidney cultures</term>
<term>Kidney differentiation</term>
<term>Kidney mesenchyme</term>
<term>Kidney morphogenesis</term>
<term>Kidney tubules</term>
<term>Kind gifts</term>
<term>Mesenchymal</term>
<term>Mesenchymal cells</term>
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<term>Metanephric</term>
<term>Metanephric development</term>
<term>Metanephric kidney</term>
<term>Morphogenesis</term>
<term>Mouse kidneys</term>
<term>Mouse metanephric kidneys</term>
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<term>Mrna levels</term>
<term>Nephrogenic</term>
<term>Nephrogenic mesenchyme</term>
<term>Nerve growth factor receptor</term>
<term>Neurotrophin receptors</term>
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<term>Ngfr expression</term>
<term>Ngfr mrna</term>
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<term>Nonsense oligonucleotides</term>
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<term>Oligonucleotide</term>
<term>Oligonucleotides</term>
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<term>Paulin</term>
<term>Phosphorothioate</term>
<term>Phosphorothioate deoxyoligonucleotides</term>
<term>Phosphorothioate oligonucleotides</term>
<term>Potato virus</term>
<term>Pretubular</term>
<term>Pretubular cells</term>
<term>Pretubular condensates</term>
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<term>Rothenpieler</term>
<term>Saarma</term>
<term>Sainio</term>
<term>Sariola</term>
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<term>Tubule</term>
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<term>Unmodified oligonucleotides</term>
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<div type="abstract" xml:lang="en">Summary: 1. Antisense inhibition of gene expression implies that the expression of the target protein is selectively inhibited at either the translational or the transcriptional level by complementary DNA or RNA constructs that are antiparallel to the target sequence. The antisense inhibition strategy provides means to study the roles of individual proteins and has, in spite of its limitations, gained a wide range of both therapeutic and experimental applications. 2. In developmental biology, protein expression has been selectively inhibited by the use of antisense gene transfection and by antisense deoxyoligonucleotides. The transfectability of embryonic tissues is variable, but in general fetal and embryonic cells take up foreign DNA relatively efficiently, in particular, short deoxyoligonucleotides that penetrate mesenchymal cells within a few hours without any manipulation. 3. We have now evaluated the advantages and pitfalls of antisense inhibition by deoxyoligonucleotides in organ culture and describe our experience from the inhibition of low-affinity nerve growth factor receptor expression in embryonic mouse and rat kidneys. 4. The expression of nerve growth factor receptor can be specifically inhibited by deoxyoligonucleotides, but the target sequence-dependent window of, in particular, phosphorothioate-modified oligonucleotides is quite narrow. The culture conditions affect the response to the oligonucleotides and their cellular incorporation is variable with respect to the cell type and stage of differentiation.</div>
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