To allow investigations of the role of tumor cell proteases in invasion and metastasis, an attempt was made to obtain well-defined homogeneous populations of Lewis Lung carcinoma cells differing widely in their metastatic potential. From a single Lewis lung carcinoma, a parental line of cells was established and subsequently cloned so as to provide 18 clonal tumor cell lines. These clones diffe...

Aromatic carbonyl compounds such as 10-methylacridone form the Lewis acid complexes including paramagnetic and redox active Lewis acids. The fluorescence energies of the Lewis acid complexes are well correlated with the O2*--Lewis acid complexes derived from the gzz-values of the ESR spectra of the superoxide anion-Lewis acid complexes, thus providing a quantitative measure of the Lewis acidity.

background: allergic rhinitis (ar) is an allergic disorder of the nasal tissue that underlies diseases such as sinusitis, otits and asthma. different predisposing factors including immunological and non-immunological factors contribute to the disease pathogenesis. objective: to investigate association of haptoglobin (hp) phenotypes (hp1-1, 2-1 and 2-2) with serum immunoglobulins a and e levels ...

The binding of Norwalk virus (NV) recombinant capsids was tested in a panel of saliva samples collected from 96 donors with different ABO, secretor, and Lewis phenotypes. As previously reported, binding occurred specifically to saliva from secretors, regardless of their Lewis phenotype status. Blood group B saliva was poorly recognized, whereas binding to blood group O saliva was higher and bin...

OBJECTIVE To test the hypothesis that the predictive value for risk of fatal ischaemic heart disease associated with Lewis phenotypes depends on the level of leisure time physical activity. DESIGN Prospective study controlling for alcohol, tobacco, serum cotinine, blood pressure, body mass index, serum lipids, work related physical activity, and social class. SETTING The Copenhagen male stu...

To determine whether the Lewis enzyme responsible for the Lewis blood type antigens on erythrocytes synthesizes the Lewis antigens on normal cells and cancer cells in colon tissue, we performed genotyping of the Lewis gene by the PCR-RFLP method and by immunohistochemical staining of Lewis antigens and the Lewis enzyme with specific monoclonal antibodies (mAbs) in colon tissues obtained from 10...