Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2008-8-25
pubmed:abstractText
Pancreatic adenocarcinoma confers one of the highest mortality rates in malignant human tumors with very poor prognosis. Because as yet no treatments are available that produce a substantial survival benefit for this fatal neoplasia, new therapeutic concepts are urgently required to support cancer standard treatment. In search of tumor-associated gangliosides with therapeutic background, we probed a random collection of cancerous and adjacent normal postoperative tissue samples from 38 patients for the expression of CD75s- and iso-CD75s-gangliosides. We exhaustively analyzed the expression of CD75s-1-ganglioside (IV(6)Neu5Ac-nLc4Cer) and structurally closely related iso-CD75s-1-ganglioside (IV(3)Neu5Ac-nLc4Cer) by means of immunohistology of cryosections and semiquantitative TLC of tissue lipid extracts combined with mass spectrometry. CD75s-1- and iso-CD75s-1-ganglioside showed an elevated expression in 42% and 66% of the tumors, respectively, indicating a significant association with neoplastic transformation (P = 0.001). Thus, increased expression of CD75s-1- and iso-CD75s-1-gangliosides renders these cell surface molecules promising candidates for oncologic applications. Further statistical analysis revealed a significant enhancement of CD75s-1-ganglioside in the group of less differentiated tumors (grade >2) suggesting this ganglioside as a potential marker for poor differentiation. The CD75s-specific antitumor drug rViscumin, which represents the recombinant counterpart of the ribosome-inactivating lectin viscumin, has successfully passed clinical phase I trials and provides an opportunity for treating pancreatic cancer. Consequently, if an enhanced expression is existent in malignant tissues, we propose the targeting of CD75s-gangliosides with rViscumin as a novel potential strategy in adjuvant treatment of pancreatic malignancies.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/Antibodies, Neoplasm, http://linkedlifedata.com/resource/pubmed/chemical/Antigens, CD, http://linkedlifedata.com/resource/pubmed/chemical/Antineoplastic Agents, http://linkedlifedata.com/resource/pubmed/chemical/Gangliosides, http://linkedlifedata.com/resource/pubmed/chemical/Recombinant Proteins, http://linkedlifedata.com/resource/pubmed/chemical/Ribosome Inactivating Proteins..., http://linkedlifedata.com/resource/pubmed/chemical/ST6GAL1 protein, human, http://linkedlifedata.com/resource/pubmed/chemical/Sialyltransferases, http://linkedlifedata.com/resource/pubmed/chemical/Toxins, Biological, http://linkedlifedata.com/resource/pubmed/chemical/Tumor Markers, Biological, http://linkedlifedata.com/resource/pubmed/chemical/mistletoe lectin I
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1535-7163
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2464-75
pubmed:meshHeading
pubmed-meshheading:18723492-Adenocarcinoma, pubmed-meshheading:18723492-Antibodies, Neoplasm, pubmed-meshheading:18723492-Antigens, CD, pubmed-meshheading:18723492-Antineoplastic Agents, pubmed-meshheading:18723492-Chemotherapy, Adjuvant, pubmed-meshheading:18723492-Chromatography, Thin Layer, pubmed-meshheading:18723492-Gangliosides, pubmed-meshheading:18723492-Humans, pubmed-meshheading:18723492-Immunohistochemistry, pubmed-meshheading:18723492-Microscopy, Fluorescence, pubmed-meshheading:18723492-Pancreatic Neoplasms, pubmed-meshheading:18723492-Recombinant Proteins, pubmed-meshheading:18723492-Ribosome Inactivating Proteins, Type 2, pubmed-meshheading:18723492-Sialyltransferases, pubmed-meshheading:18723492-Spectrometry, Mass, Matrix-Assisted Laser..., pubmed-meshheading:18723492-Toxins, Biological, pubmed-meshheading:18723492-Tumor Markers, Biological
pubmed:year
2008
pubmed:articleTitle
Tumor-associated CD75s- and iso-CD75s-gangliosides are potential targets for adjuvant therapy in pancreatic cancer.
pubmed:affiliation
Institute for Medical Physics and Biophysics, University of Münster, Robert-Koch-Strasse 31, Münster, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't