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M C Savaş

Publications and source records attributed to M C Savaş.

14 recordsLinked to original sources
PubMed2000

Serum L-selectin and P-selectin levels in lymphomas.

The migration of normal and malignant lymphoid cells is governed by specific adhesion molecules. Selectins comprise a family of adhesion receptors expressed by leukocytes, platelets and endothelial cells. In this study, the serum levels of soluble L-selectin and P-selectin were measured in patients with non-Hodgkin's lymphoma and Hodgkin's disease and found to be significantly elevated in both patient groups compared to healthy controls. This result provides evidence that alterations in the expression and function of adhesion molecules may play an important role in the progression of lymphomas. Further studies are awaited to establish the exact roles of these adhesion molecules in distinct patterns of growth and spread of lymphomas.

Adult↗
PubMed1998

Circulating intercellular adhesion molecule-1 and E-selectin levels in gastric cancer.

A diversity of adhesive interactions occur between the cancer cell and host extracellular matrix which potentiate neoplastic expansion and metastatic dissemination. In miscellaneous malignant diseases, tumour progression has been observed to be associated with alterations in adhesion molecule expression. Recently, circulating soluble intercellular adhesion molecules have been identified. In this study, serum levels of soluble intercellular adhesion molecule-1 (sICAM-1) and soluble E-selectin (sE-selectin) were determined in patients with gastric cancer. The study group consisted of 27 patients with previously untreated gastric adenocarcinoma. Four patients had stage II, two patients stage III and 21 patients stage IV disease according to the TNM classification. Nineteen patients had distant metastasis. The sera obtained from 18 healthy volunteers served as controls. Serum sICAM-1 and sE-selectin concentrations were determined by enzyme-linked immunosorbent assay (ELISA). In addition, we also studied other tumour-associated antigens, i.e. CEA and CA 19-9. Serum sICAM-1 levels were significantly increased in patients with gastric cancer (P < 0.0001). However, sE-selectin levels did not differ from the controls. sICAM-1 concentrations were also significantly higher in patients with distant metastasis and peritoneal spread (P = 0.0045 and P = 0.0157 respectively), whereas sE-Selectin levels were elevated only in patients with peritoneal metastasis (P = 0.033). Serum concentrations of sICAM-1 and sE-selectin correlated with CEA levels (P = 0.0013 and P = 0.003 respectively). Elevated levels of sE-selectin were associated with poorer prognosis (P = 0.0099), whereas sICAM-1 had no significant impact on survival. Our results suggest that increased sICAM-1 serum levels may reflect widespread disease and contribute directly to the progression of gastric cancer. Further investigation of the molecular mechanisms of adhesive tumour-host interactions may lead to a better understanding of the natural history of gastric cancer.

Adult↗
PubMed1997

Multiple lymphomatous polyposis.

Multiple lymphomatous polyposis (MLP) is a distinctive and particularly rare clinical type of malignant gastrointestinal lymphoma, which is classified as B-cell centrocytic non-Hodgkin's lymphoma. this rare entity has been recently reclassified as mantle cell lymphoma. We herein report three additional cases of MLP involving various segments of the gastrointestinal tract. MLP has an aggressive biologic behavior and a relatively poor prognosis and must be treated accordingly as a high-grade lymphoma with systemic chemotherapy.

Aged↗
PubMed1996

Chronic lymphocytic leukemia presenting as acute urinary retention due to leukemic infiltration of the prostate.

Leukemic infiltration of the prostate is unusual. Acute retention of urine as the first clinical manifestation of an unsuspected, asymptomatic chronic lymphocytic leukemia (CLL) is found only in sporadic case reports. This report documents a case of CLL in a 65-year-old man presenting with acute urinary retention. The literature pertinent to this topic is briefly discussed.

Aged↗
PubMed1996

Acute tumor lysis syndrome following intrathecal methotrexate.

We report a 17-year-old boy with meningeal involvement of lymphoblastic lymphoma who experienced acute tumor lysis syndrome following intrathecal administration of methotrexate. Intrathecally injected methotrexate provides a slow- release reservoir of methotrexate into the bloodstream with prolonged cytotoxic levels. To the best of our knowledge, this is the second case of tumor lysis syndrome to be described after intrathecal methotrexate injection. The pathogenesis of this unusual complication of intrathecal chemotherapy is discussed.

Adolescent↗
PubMedDate not supplied

Tumor lysis syndrome following single-dose mitoxantrone.

We report here a 16-year-old boy with pre-B-type acute lymphoblastic leukemia who developed acute tumor lysis syndrome (TLS) following 12 h mitoxantrone infusion. TLS is a distinct clinical entity which has been recognized most frequently with aggressive combination chemotherapy of rapidly proliferating hematologic neoplasms. There have been a few reports of single-agent-induced tumor lysis, but to our knowledge, this is the first case reported with mitoxantrone alone.

Adolescent↗