Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0020437 (hypercalcemia)
 10,293 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Lymphoma is a malignant neoplasm arising from B or T lymphocytes. In dogs, one-third of lymphomas are highly aggressive multicentric T-cell lymphomas that are often associated with humoral hypercalcaemia of malignancy (HHM). There are no cell lines or animal models to investigate the pathogenesis of T-cell lymphoma and HHM in dogs. We developed the first xenograft model by injecting lymphoma cells from an Irish Wolfhound intraperitoneally into NOD/SCID mice. The mice developed multicentric lymphoma along with HHM and increased parathyroid hormone-related protein (PTHrP) as occurs in dogs with T-cell lymphoma. Using cytokine complementary DNA arrays, we identified genes that have potential implications in the pathogenesis of T-cell lymphoma. Quantitative reverse transcriptase-polymerase chain reaction (RT-PCR) of T-cell lymphoma samples from hypercalcaemic canine patients showed that PTHrP likely plays a central role in the pathogenesis of HHM and that hypercalcaemia is the result of a combinatorial effect of different hypercalcaemic factors. Finally, we monitored in vivo tumour progression and metastases in the mouse model by transducing the lymphoma cells with a lentiviral vector that encodes a luciferase-yellow fluorescent protein reporter and showed that in vivo trafficking patterns in this model were similar to those seen in dogs. This unique mouse model will be useful for translational research in lymphoma and for investigating the pathogenesis of T-cell lymphoma and HHM in the dog.
 ...
PMID:NOD/SCID mouse model of canine T-cell lymphoma with humoral hypercalcaemia of malignancy: cytokine gene expression profiling and in vivo bioluminescent imaging. 1917 62

The emergence of highly active antiretroviral therapy using combinations of reverse transcriptase and protease inhibitors ushered the dawn of a new era in management of human immunodeficiency virus infection. Immune reconstitution inflammatory syndrome is an adverse consequence of the restoration of pathogen-specific immune responses during the early phase of antiretroviral therapy. Pre-existing subclinical or opportunistic infections become apparent or even "worse" as host immunological inflammatory responses are "switched on". Major reductions in plasma viral load were associated with substantial increases in circulating CD4 T-cell lymphocyte counts and restoration of immune function. The rapid reversal in immune function gives rise to paradoxical therapeutic reaction by rebuilding host immune responses. Herein, a hidden culprit responsible for tuberculosis-associated immune reconstitution characterized by severe hypercalcemia and acute renal failure is reported, illustrating the compounded therapeutic strategy in AIDS patients.
 ...
PMID:Immune reconstitution associated hypercalcemia. 1949 80


<< Previous 1 2