SwePub
Sök i LIBRIS databas

  Utökad sökning

onr:"swepub:oai:DiVA.org:uu-149268"
 

Sökning: onr:"swepub:oai:DiVA.org:uu-149268" > Expression of somat...

Expression of somatostatin receptor subtypes 1 to 5 in tumor tissue and intratumoral vessels in malignant endocrine pancreatic tumors

Fjällskog, Marie-Louise, (författare)
Uppsala universitet, Onkologisk endokrinologi
Ludvigsen, Eva, (författare)
Uppsala universitet, Institutionen för medicinska vetenskaper
Stridsberg, Mats, (författare)
Uppsala universitet, Biokemisk endokrinologi
visa fler...
Öberg, Kjell, (författare)
Uppsala universitet, Onkologisk endokrinologi
Eriksson, Barbro, (författare)
Uppsala universitet, Endokrin tumörbiologi
Janson, Eva T, (författare)
Uppsala universitet, Onkologisk endokrinologi
visa färre...
2003
Engelska.
Ingår i: Medical Oncology. - 1357-0560 .- 1559-131X. ; 20:1, s. 59-67
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • <p>Somatostatin analogs are well established in the treatment of malignant endocrine pancreatic tumors (EPTs). Our goal is to individualize their treatment using receptor-subtype-specific analogs and, therefore, exploring the receptor expression is highly important. We have examined the expression of somatostatin receptor (sst) subtypes 1–5 on tumor cells and in intratumoral vessels in 28 tumor tissues from malignant EPTs with immunohistochemistry using sst-subtype-specific polyclonal antibodies. We found that sst<sub>2</sub> and sst<sub>4</sub> stained positive in 90% and sst<sub>1</sub> in 70% of the tumor tissues, whereas sst<sub>3</sub> and sst<sub>5</sub> stained positive in only 50% of the tumor tissues. Sst expression in intratumoral vessels was high for sst<sub>2</sub> and sst<sub>4</sub> (80%), moderate for sst<sub>1</sub> (40%), and low for sst<sub>3</sub> and sst<sub>5</sub> (10%). The ssts were evenly distributed among the different tumor subtypes. However, tumors belonging to the same subgroup of EPTs showed a variable expression of receptor subtypes. No differences in receptor-subtype expression could be seen between poorly and well-differentiated tumors, nor between primary tumors and metastases. Prior medical treatment did not influence sst expression pattern. In conclusion, sst<sub>2</sub> and sst<sub>4</sub> were expressed in most tumor tissues and intratumoral vessels from EPTs. However, sst<sub>3</sub> and sst<sub>5</sub> were lacking in half of the tumor tissues and in most of the intratumoral vessels. These differences indicate the importance of determining each tumor’s subset of receptors before treatment with receptor-subtype-specific analogs is initiated. The importance of sst expression in intratumoral vessels is not yet known.</p>

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  (hsv//swe)
MEDICAL AND HEALTH SCIENCES  (hsv//eng)

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)
ref (ämneskategori)

Hitta via bibliotek

Till lärosätets databas

Sök utanför SwePub

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy