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Biomedical subjects

W Ax

Publications and source records attributed to W Ax.

12 recordsLinked to original sources
PubMed1978

PAL-test for malignant disease.

Peripheral blood lymphocytes from a total of 300 subjects including normal controls and patients with malignant and non-malignant disorders were investigated to determine their ability to agglutinate with Poly-l-lysine 3400 (PAL-test). A high level of association between clinically evident cancer and a positive reaction was confirmed. Lymphocytes from 72 of 90 patients with malignant diseases as well as 33 of 140 patients with non-malignant processes showed positive reactions. All healthy controls were negative. The positive evidence of the PAL-test amounted to over 80%. The results and possible mechanisms of the PAL-test are discussed.

Adolescent↗
PubMed1978

[Immunologic potency of pregnancy associated alpha 2-glycoprotein (alpha 2-PAG)].

The suggestion that the pregnancy-associated alpha2-glycoprotein could depress the immune response was investigated using the modified electrophoretic mobility test. The presence of the glycoprotein, at physiological levels, significantly reduced the inhibition of the migration velocity of indicator cells in the electric field caused by the MSF. In the contrary alpha2-PAG-free serum had no effect in the test system. Therefore, it can be supposed that alpha2-PAG may have an immunoregulatory function within the immunological mechanism which protects the conceptus and malignant tumor.

Cell Migration Inhibition↗
PubMed1978

Effect of Vibrio cholerae neuraminidase on the phagocytosis of E. coli by macrophages in vivo and in vitro.

The mechanisms by which Vibrio cholerae neuraminidase VCN acts as an adjuvant is unclear. We have studied the effect of VCN on the phagocyotsis of E. coli 0111 K58 by macrophages in vivo and in vitro. (1) Using and in vivo intraperitoneal clearance test we have shown that prior injection of VCN (50 units/mouse) into the peritoneal cavity of mice enhances the clearance of the bacteria as efficiently as an optimal amount of opsonizing antiserum. We have also shown that the enhancement of intraperitoneal clearance by VCN is due to phagocytosis and intracellular killing of the organisms by macrophages. (2) VCN does not enhance the i.v. clearance of E. coli o111 K58. (3) VCN promotes the attachment of the organisms to and phagocytosis by peritoneal macrophages in vitro. Data are provided which suggest that the promotion of attachment and phagocytosis by VCN cannot be explained by a mere increase of passive absorption of the bacteria to the cell wall.

Animals↗
PubMed1978

[Diagnosis of malignant processes of the colon and rectum using a new method for the demonstration of sensitized lymphocytes (PAL-test)].

Peripheral blood lymphocytes of 45 patients with colon-rectum disease and 30 healthy controls were tested in a simple rapid microagglutination test (PAL test) for cancer diagnosis. In 30 cancer patients 28 positive reactions were obtained. All healthy controls were negative. The 15 patients with benign or premalignant lesions showed 5 positive and 10 negative reactions. Results of the PAL test were about 90% accurate.

Agglutination Tests↗
PubMed1977

Detection of sensitized human blood lymphocytes by agglutination with basic peptides: a possible test for malignant disease.

A simple rapid micro-agglutination test for detecting sensitized lymphocytes from human peripheral blood is described: the poly-L-lysine (PLL) 3400 agglutination test of lymphocytes (PAL test). The incubation of lymphocytes from 30 cancer patients, 30 patients with non-malignant disease and 40 healthy controls with PLL (mol. wt 3400) is evaluated. The test was positive in 83 percent of malignant and 20 percent of non-malignant cases. All healthy controls were negative. Other peptides tested showed no significant difference in reaction between malignant and non-malignant diseases. The mechanism of detection of sensitized lymphocytes from patients with malignant disease through agglutination induced by PLL 3400 is discussed.

Agglutination Tests↗
PubMed1975

Cell-mediated immunity in patients with renal adenocarcinoma.

The lymphocytotoxicity test was used to study the existence of immunologically active lymphocyte reactions in patients with renal carcinoma at different stages. In 9 patients with an advanced renal carcioma (stage IV) a low lymphocytotoxicity was found, while the examination of 7 patients with stage I and II renal tumours showed a high value of the lymphocytotoxicity test. The clinical importance of the lymphocytotoxicity test is discussed with special interest in a possible immunotherapy.

Adenocarcinoma↗