Abstract
Combination therapy with enterotrophic agents may be useful in patients with the short bowel syndrome. The gut hormones neurotensin (NT) and glucagon-like peptide 2 (GLP-2) are potent enterotrophic factors when administered alone; however, their combined effects are not known. Using a GLP-2-producing tumor (STC-1), we determined whether administration of NT enhances the effect of GLP-2 on intestinal growth. Athymic mice were injected with STC-1 cells (6 × 106) subcutaneously. Twenty-three days after STC-1 implantation, mice received either NT (300 μg/kg or 600 μg/kg) or saline solution (control) subcutaneously three times a day for 6 days. Two groups of tumor-free mice received either saline or NT for 6 days. At sacrifice, jejunum and ileum were collected, weighed, and analysed for DNA and protein content. In the jejunum, NT combined with GLP-2 (from STC-1) increased weight, protein content (markers of mucosal hypertrophy), and DNA content (a marker of mucosal hyperplasia), compared to either NT or GLP-2 alone. In the ileum, the combination of NT and GLP-2 significantly increased weight and/or protein content compared to NT or GLP-2 alone. Administration of NT enhances the enterotrophic effects of GLP-2, augmenting hypertrophy of the entire small bowel and hyperplasia of the jejunum. The combination of NT and GLP-2 may be useful to enhance intestinal growth in patients with the short bowel syndrome.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 432-440 |
| Number of pages | 9 |
| Journal | Journal of Gastrointestinal Surgery |
| Volume | 3 |
| Issue number | 4 |
| State | Published - Jul 1999 |
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Keywords
- Glucagon-like peptide 2
- Intestinal growth factors
- Neurotensin
- Short bowel syndrome
ASJC Scopus subject areas
- Surgery
Cite this
Enterotrophic Effects of Glucagon-Like Peptide 2 Are Enhanced by Neurotensin. / Litvak, David A.; Evers, B. Mark; Hellmich, Mark; Townsend, Courtney.
In: Journal of Gastrointestinal Surgery, Vol. 3, No. 4, 07.1999, p. 432-440.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Enterotrophic Effects of Glucagon-Like Peptide 2 Are Enhanced by Neurotensin
AU - Litvak, David A.
AU - Evers, B. Mark
AU - Hellmich, Mark
AU - Townsend, Courtney
PY - 1999/7
Y1 - 1999/7
N2 - Combination therapy with enterotrophic agents may be useful in patients with the short bowel syndrome. The gut hormones neurotensin (NT) and glucagon-like peptide 2 (GLP-2) are potent enterotrophic factors when administered alone; however, their combined effects are not known. Using a GLP-2-producing tumor (STC-1), we determined whether administration of NT enhances the effect of GLP-2 on intestinal growth. Athymic mice were injected with STC-1 cells (6 × 106) subcutaneously. Twenty-three days after STC-1 implantation, mice received either NT (300 μg/kg or 600 μg/kg) or saline solution (control) subcutaneously three times a day for 6 days. Two groups of tumor-free mice received either saline or NT for 6 days. At sacrifice, jejunum and ileum were collected, weighed, and analysed for DNA and protein content. In the jejunum, NT combined with GLP-2 (from STC-1) increased weight, protein content (markers of mucosal hypertrophy), and DNA content (a marker of mucosal hyperplasia), compared to either NT or GLP-2 alone. In the ileum, the combination of NT and GLP-2 significantly increased weight and/or protein content compared to NT or GLP-2 alone. Administration of NT enhances the enterotrophic effects of GLP-2, augmenting hypertrophy of the entire small bowel and hyperplasia of the jejunum. The combination of NT and GLP-2 may be useful to enhance intestinal growth in patients with the short bowel syndrome.
AB - Combination therapy with enterotrophic agents may be useful in patients with the short bowel syndrome. The gut hormones neurotensin (NT) and glucagon-like peptide 2 (GLP-2) are potent enterotrophic factors when administered alone; however, their combined effects are not known. Using a GLP-2-producing tumor (STC-1), we determined whether administration of NT enhances the effect of GLP-2 on intestinal growth. Athymic mice were injected with STC-1 cells (6 × 106) subcutaneously. Twenty-three days after STC-1 implantation, mice received either NT (300 μg/kg or 600 μg/kg) or saline solution (control) subcutaneously three times a day for 6 days. Two groups of tumor-free mice received either saline or NT for 6 days. At sacrifice, jejunum and ileum were collected, weighed, and analysed for DNA and protein content. In the jejunum, NT combined with GLP-2 (from STC-1) increased weight, protein content (markers of mucosal hypertrophy), and DNA content (a marker of mucosal hyperplasia), compared to either NT or GLP-2 alone. In the ileum, the combination of NT and GLP-2 significantly increased weight and/or protein content compared to NT or GLP-2 alone. Administration of NT enhances the enterotrophic effects of GLP-2, augmenting hypertrophy of the entire small bowel and hyperplasia of the jejunum. The combination of NT and GLP-2 may be useful to enhance intestinal growth in patients with the short bowel syndrome.
KW - Glucagon-like peptide 2
KW - Intestinal growth factors
KW - Neurotensin
KW - Short bowel syndrome
UR - http://www.scopus.com/inward/record.url?scp=0033155712&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0033155712&partnerID=8YFLogxK
M3 - Article
VL - 3
SP - 432
EP - 440
JO - Journal of Gastrointestinal Surgery
JF - Journal of Gastrointestinal Surgery
SN - 1091-255X
IS - 4
ER -