Abstract
Polyamines are thought to have several vital roles in cell growth and differentiation. The highly regulated polyamine metabolic pathway provides cells with the ability to finely control the intracellular concentration of these ubiquitous polycations. Although earlier studies of regulation of polyamine content were concentrated on the biosynthetic reactions, recently the importance of the catabolic processes, particularly the highly regulated acetylation step in polyamine degradation, has become apparent. This work has led to an understanding of how a cell may, in a tightly controlled manner, facilitate the breakdown, excretion, cycling, and/or intracellular shuttling of the polyamines. This myriad of possibilities appears to be regulated initially at a single rate-limiting enzymatic step, the N1-acetylation of spermidine or spermine, by spermidine/spermine N1-acetyltransferase (SSAT). Recent cloning of the human SSAT gene has facilitated a more detailed study of this enzyme. SSAT appears to have a role in the determination of tumor sensitivity to a new class of antineoplastic agents. The further study of SSAT and the associated polyamine metabolism should provide a better understanding of the regulation and function of these cations.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 653-661 |
| Number of pages | 9 |
| Journal | FASEB Journal |
| Volume | 7 |
| Issue number | 8 |
| State | Published - Jan 1 1993 |
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All Science Journal Classification (ASJC) codes
- Biotechnology
- Biochemistry
- Molecular Biology
- Genetics
Cite this
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Spermidine/spermine N1-acetyltransferase - The turning point in polyamine metabolism. / Casero, R. A.; Pegg, A. E.
In: FASEB Journal, Vol. 7, No. 8, 01.01.1993, p. 653-661.Research output: Contribution to journal › Review article
TY - JOUR
T1 - Spermidine/spermine N1-acetyltransferase - The turning point in polyamine metabolism
AU - Casero, R. A.
AU - Pegg, A. E.
PY - 1993/1/1
Y1 - 1993/1/1
N2 - Polyamines are thought to have several vital roles in cell growth and differentiation. The highly regulated polyamine metabolic pathway provides cells with the ability to finely control the intracellular concentration of these ubiquitous polycations. Although earlier studies of regulation of polyamine content were concentrated on the biosynthetic reactions, recently the importance of the catabolic processes, particularly the highly regulated acetylation step in polyamine degradation, has become apparent. This work has led to an understanding of how a cell may, in a tightly controlled manner, facilitate the breakdown, excretion, cycling, and/or intracellular shuttling of the polyamines. This myriad of possibilities appears to be regulated initially at a single rate-limiting enzymatic step, the N1-acetylation of spermidine or spermine, by spermidine/spermine N1-acetyltransferase (SSAT). Recent cloning of the human SSAT gene has facilitated a more detailed study of this enzyme. SSAT appears to have a role in the determination of tumor sensitivity to a new class of antineoplastic agents. The further study of SSAT and the associated polyamine metabolism should provide a better understanding of the regulation and function of these cations.
AB - Polyamines are thought to have several vital roles in cell growth and differentiation. The highly regulated polyamine metabolic pathway provides cells with the ability to finely control the intracellular concentration of these ubiquitous polycations. Although earlier studies of regulation of polyamine content were concentrated on the biosynthetic reactions, recently the importance of the catabolic processes, particularly the highly regulated acetylation step in polyamine degradation, has become apparent. This work has led to an understanding of how a cell may, in a tightly controlled manner, facilitate the breakdown, excretion, cycling, and/or intracellular shuttling of the polyamines. This myriad of possibilities appears to be regulated initially at a single rate-limiting enzymatic step, the N1-acetylation of spermidine or spermine, by spermidine/spermine N1-acetyltransferase (SSAT). Recent cloning of the human SSAT gene has facilitated a more detailed study of this enzyme. SSAT appears to have a role in the determination of tumor sensitivity to a new class of antineoplastic agents. The further study of SSAT and the associated polyamine metabolism should provide a better understanding of the regulation and function of these cations.
UR - http://www.scopus.com/inward/record.url?scp=0027238083&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0027238083&partnerID=8YFLogxK
M3 - Review article
C2 - 8500690
AN - SCOPUS:0027238083
VL - 7
SP - 653
EP - 661
JO - FASEB Journal
JF - FASEB Journal
SN - 0892-6638
IS - 8
ER -