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Tachykinins in endocrine tumors and the carcinoid syndrome
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper. (Onkologisk endokrinologi)
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper. (Onkologisk endokrinologi)
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för genetik och patologi.
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2008 (Engelska)Ingår i: European Journal of Endocrinology, ISSN 0804-4643, E-ISSN 1479-683X, Vol. 159, nr 3, s. 275-282Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Objective

A new antibody, active against the common tachykinin (TK) C-terminal. was used to study TK expression in patients with endocrine tumors and a possible association between plasma-TK levels and symptoms of diarrhea and flush in patients with metastasizing ileocecal serotonin-producing carcinoid tumors (MSPCs).

Method

TK, serotonin and chromogranin A (CgA) immunoreactivity (IR) was studied by immunohistochemistry in tissue samples from 33 midgut carcinoids and 72 other endocrine tumors. Circulating TK (P-TK) and urinary-5 hydroxyindoleacetic acid (U-5HIAA) concentrations were measured in 42 patients with MSPCs before treatment and related to symptoms in patients with the carcinoid syndrome. Circulating CgA concentrations were also measured in 39 out of the 42 patients.

Results

All MSPCs displayed serotonin and strong TK expression. TK-IR was also seen in all serotonin-producing lung and appendix carcinoids. None of the other tumors examined contained TK-IR cells. Concentrations of P-TK, P-CgA, and U-5HIAA were elevated in patients experiencing daily episodes of either flush or diarrhea, when compared with patients experiencing occasional or none of these symptoms. In a Spearman partial rank test, the correlation of P-TK with daily diarrhea was independent of both U-5HIAA and CgA levels.

Conclusion

We found that TK synthesis occurs in serotonin-IR tumors and that P-TK levels are significantly correlated with symptoms of flush and diarrhea in patients with MSPCs. This is. to our knowledge, the first report demonstrating an independent correlation of P-TKs with carcinoid diarrhea, a symptom that is customarily regarded as serotonin mediated. Further investigations may present opportunities for new therapeutic possibilities.

Ort, förlag, år, upplaga, sidor
2008. Vol. 159, nr 3, s. 275-282
Nationell ämneskategori
Medicin och hälsovetenskap
Identifikatorer
URN: urn:nbn:se:uu:diva-107837DOI: 10.1530/EJE-08-0196ISI: 000260408900010PubMedID: 18524798OAI: oai:DiVA.org:uu-107837DiVA, id: diva2:233299
Tillgänglig från: 2009-08-31 Skapad: 2009-08-31 Senast uppdaterad: 2017-12-13

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Cunningham, Janet L.Janson, Eva TiensuuGrimelius, LarsStridsberg, Mats

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