Leukocytosis-promoting factor of Bordetella pertussis. 3. Its identity with protective antigen.
نویسندگان
چکیده
Leukocytosis-promoting factor (LPF) was purified from the supernatant of a 5-day liquid culture of Bordetella pertussis strains Tohama and no. 134. The preparations appeared to be filamentous molecules (2 by 40 nm) and contained histamine-sensitizing and hemagglutinin activities in addition to leukocytosis-promoting activity. Active protection tests in mice demonstrated strong protective activities of 80 international protective units per mg of protein in LPF preparations of each strain toxoided by mild Formalin treatment. Passive protection tests in mice with anti-LPF sera indicated that anti-LPF is one of the protective antibodies.
منابع مشابه
Leukocytosis-promoting factor of Bordetella pertussis. II. Biological properties.
The leukocytosis-promoting factor (LPF), purified from materials extracted from agar in which Bordetella pertussis was grown, caused leukocytosis and an increased sensitivity to histamine when as little as 0.04 mug of protein was given intravenously to mice. LPF was adsorbed onto erythrocytes, causing hemagglutination. As little as 0.03 mug of LPF protein agglutinated chicken erythrocytes in 0....
متن کاملIsolation and properties of the leukocytosis- and lymphocytosis- promoting factor of Bordetella pertussis
The leukocytosis- and lymphocytosis-promoting factor (LPF) of Bordetella pertussis has been isolated to near homogeneity by physical, chemical, and electron microscopical criteria. LPF contains 14.5% nitrogen and is lipid and carbohydrate free. It is apparently composed of four polypeptide subunits. LPF caused leukocytosis and lymphocytosis in "nude" as well as in normal mice. In addition, puri...
متن کاملLeukocytosis-promoting factor of Bordetella pertussis.
The leukocytosis-promoting factor (LPF), purified from materials extracted from agar in which Bordetella pertussis was grown, caused leukocytosis and an increased sensitivity to histamine when as little as 0.04 Ag of protein was given intravenously to mice. LPF was adsorbed onto erythrocytes, causing hemagglutination. As little as 0.03 ,g of LPF protein agglutinated chicken erythrocytes in 0.05...
متن کاملAntigens of Bordetella pertussis V. Separation of Agglutinogen 1 and Mouse-Protective Antigen.
Agglutinogen 1 of Bordetella pertussis strain 353/Z (serotype 1) was separated from protective antigen and histamine-sensitizing factor by starch-block electrophoresis. Most of the agglutinogen 1 migrated towards the cathode in starch-block electrophoresis, although some remained near the origin. Fractions containing most of the agglutinogen 1 were free of detectable mouse-protecting or histami...
متن کاملThe Occurrence and Properties of Leukocytosis and Lymphocytosis-stimulating Material in the Supernatant Fluids of Bordetella Pertussis Cultures
1. Leukocytosis- and lymphocytosis-stimulating activity was present in fluid cultures of B. pertussis. The activity was found primarily in the culture supernatant fluid. 2. The sequential changes in the leukocyte response were similar to those previously observed following injection of intact bacteria into mice. 3. Activity was destroyed by heat and was diminished, but not abolished, by prolong...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Infection and immunity
دوره 9 5 شماره
صفحات -
تاریخ انتشار 1974