Search PubMed⌕ Search

Biomedical subjects

E Klein

Publications and source records attributed to E Klein.

At least 595 records · Page 33Linked to original sources
PubMed1975

A technique for intensifying BCG sensitivity.

Sensitization to BCG (Bacille Calmette-Guérin) appears to be more effective when it is carried out at the site of a delayed hypersensitivity challenge reaction to DNCB (1-chloro, 2,4-dinitrobenzene) than when it is carried out at unchallenged sites in non-sensitized animals. The effectiveness of BCG sensitization was determined by measurement of the intensity of the PPD (Purified Protein Derivative of tuberculin) 24-hour skin test. Possible mechanisms for this phenomenon and its implications for cancer immunotherapy are considered.

Animals↗
PubMed1975

Antibody-dependent lymphocyte cytotoxicity in the murine sarcoma virus system: activity of IgM and IgG with specificity for MLV determined antigen(s).

Antisera with specificity for Moloney leukemia virus-(MLV) determined antigen(s) were studied for their ability to induce MLV antigen bearing target cell reduction by lymphocytes in microcytotoxicity assays. Sera from animals which had regressed Moloney sarcoma virus (MSV) tumors as well as sera from animals with progressively growing MSV tumors were found to induce normal lymphocytes to be active against the targets. Regressor serum was found also to induce cytotoxicity by immune lymphocytes from a tumor-bearing animal 15 days after MSV and from a regressor 50 days after MSV infection. Both the 19S and 7S Sephadex G-200 fractions of the antisera were found to induce cytotoxicity by normal lymphocytes and to potentiate the cytotoxicity of MSV immune lymphocytes. These activities were shown to be IgM and IgG, respectively, by the use of Sepharose-coupled anti-mouse IgM and anti-mouse IgG columns. All activity was removed by passing sera over both columns.

Absorption↗
PubMed1975

The "turban" nevoid basal cell syndrome. Current management with surgery, chemotherapy and immunotherapy.

"Turban" nevoid basal cell syndrome is a congenital disease that presents with multiple subepidermal epitheliomas, primarily on the scalp. Other secondary findings may be present such as cysts in the mandible and bifid synostotic rib. A combination of treatments proved beneficial in this disease. Surgical excision was used for treatment of large symptomatic lesions such as painful ulcerating and enlarging tumors. Chemotherapy was used to arrest and cause regression of small and dormant lesions. Immunotherapy was used to control the primary disease. Such treatment cured most of the disease and offered a fruitful life to the patient, who is presented to illustrate this multiple disciplinary approach.

Adult↗
PubMed1974

Human leukemia-associated anti-nuclear reactivity.

A brilliant, coarsely granular nuclear antigen was detected by anti-complement immunofluorescence in the nuclei of acute myeloid leukemia myeloblasts. Designated as LANA (leukemia-associated nuclear antigen), the reactivity differs from that of the Epstein-Barr-virus-determined nuclear antigen (EBNA) in immunological specificity and morphological appearance, although it is visualized by the same method. Serum from acute myeloid leukemia patients gave positive reactions in 73% of the cases. In acute lymphatic leukemia, chronic myeloid leukemia, chronic lymphatic leukemia, and Burkitt's lymphoma the sera were positive in 35, 14, 19, and 24%, respectively. Two of five polycythemia and two of eleven myeloma sera were also positive. Among 61 healthy controls, 58 were negative, whereas three showed a diffuse nuclear staining with a different pattern. Among 24 carcinoma patients, 18 were negative, whereas six gave a nuclear staining with a different, diffuse pattern. Sera from 20 patients who had recovered from infectious mononucleosis were all negative. In addition to the blasts of acute myeloid leukemia, a similar reactivity was seen with two Epstein-Barr virus DNA and EBNA-negative African lymphoma biopsies and in a short-lived tissue culture line derived from one of them. LANA could be a fetal or tissue-specific antigen, a virally determined antigen, or a specific form of anti-nuclear reactivity.

Antibodies, Antinuclear↗