Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1993-6-17
pubmed:abstractText
Parathyroid-hormone-related protein (PTHrP) has been implicated in the origin of malignant hypercalcaemia. However, PTHrP production is not restricted to neoplastic cells, it is widespread among a variety of normal cell types and tissues. A physiological role for PTHrP has not been well defined. We describe a case of breast cancer with bone metastases and humoral hypercalcaemia of malignancy, with high levels of plasma C-terminal parathyroid hormone (PTH), mid-molecule PTH and PTHrP. Cells from breast cancer biopsies were cultured and medium samples assayed for the C-terminal and mid-molecule fragments, intact PTH and PTHrP. The data indicate a progressive increase in both PTH fragments and PTHrP levels, over a period of 30 days. No temporal parallelism exists between PTH fragments and PTHrP concentrations, the former being maximum at the 14th day, and the latter at the 30th day from the beginning of the culture. Our results indicate a coproduction of PTH and PTHrP by the breast cancer cells both in vivo and in vitro.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0171-5216
pubmed:author
pubmed:issnType
Print
pubmed:volume
119
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
421-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Production of parathyroid hormone and parathyroid-hormone-related protein by breast cancer cells in culture.
pubmed:affiliation
Division of Medical Oncology, University of Siena, Santa Maria della Scala Hospital, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't