Adherence of specific yogurt micro-organisms to human peripheral blood lymphocytes. 1988

C De Simone, and P P Grassi, and B Bianchi-Salvadori, and G Miragliotta, and R Vesely, and E Jirillo
Clinica Malattie Infettive, Policlinico Umberto I. Università La Sapienza, Rome, Italy.

Yogurt lactic-acid-bacteria (LAB) consisting of Lactobacillus bulgaricus and Streptococcus thermophilus were evaluated for their capacity to bind to human peripheral blood lymphocytes (PBL). These micro-organisms adhere to human T lymphocytes, and bind to B lymphocytes, in high and low frequencies, respectively. In addition, a quantitative analysis of LAB binding to PBL was carried out using the same parameters previously applied to a Salmonella model. The effect of yogurt LAB on the natural anti-bacterial activity exerted by PBL was examined. Lymphocyte pretreatment with bacteria did not affect such functions. These findings are discussed in the light of the well known ability of yogurt LAB to modulate the immune response.

UI MeSH Term Description Entries
D007779 Lactobacillus acidophilus A species of gram-positive, rod-shaped bacteria isolated from the intestinal tract of humans and animals, the human mouth, and vagina. This organism produces the fermented product, acidophilus milk. Lactobacillus amylovorus
D007780 Lacticaseibacillus casei A rod-shaped bacterium isolated from milk and cheese, dairy products and dairy environments, sour dough, cow dung, silage, and human mouth, human intestinal contents and stools, and the human vagina. L. casei is CATALASE positive. Lactobacillus casei
D008214 Lymphocytes White blood cells formed in the body's lymphoid tissue. The nucleus is round or ovoid with coarse, irregularly clumped chromatin while the cytoplasm is typically pale blue with azurophilic (if any) granules. Most lymphocytes can be classified as either T or B (with subpopulations of each), or NATURAL KILLER CELLS. Lymphoid Cells,Cell, Lymphoid,Cells, Lymphoid,Lymphocyte,Lymphoid Cell
D001770 Blood Bactericidal Activity The natural bactericidal property of BLOOD due to normally occurring antibacterial substances such as beta lysin, leukin, etc. This activity needs to be distinguished from the bactericidal activity contained in a patient's serum as a result of antimicrobial therapy, which is measured by a SERUM BACTERICIDAL TEST. Activities, Blood Bactericidal,Activity, Blood Bactericidal,Bactericidal Activities, Blood,Bactericidal Activity, Blood,Blood Bactericidal Activities
D003611 Dairy Products Raw and processed or manufactured milk and milk-derived products. These are usually from cows (bovine) but are also from goats, sheep, reindeer, and water buffalo. Dairy Product,Product, Dairy,Products, Dairy
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001402 B-Lymphocytes Lymphoid cells concerned with humoral immunity. They are short-lived cells resembling bursa-derived lymphocytes of birds in their production of immunoglobulin upon appropriate stimulation. B-Cells, Lymphocyte,B-Lymphocyte,Bursa-Dependent Lymphocytes,B Cells, Lymphocyte,B Lymphocyte,B Lymphocytes,B-Cell, Lymphocyte,Bursa Dependent Lymphocytes,Bursa-Dependent Lymphocyte,Lymphocyte B-Cell,Lymphocyte B-Cells,Lymphocyte, Bursa-Dependent,Lymphocytes, Bursa-Dependent
D001422 Bacterial Adhesion Physicochemical property of fimbriated (FIMBRIAE, BACTERIAL) and non-fimbriated bacteria of attaching to cells, tissue, and nonbiological surfaces. It is a factor in bacterial colonization and pathogenicity. Adhesion, Bacterial,Adhesions, Bacterial,Bacterial Adhesions
D012485 Salmonella typhi A serotype of SALMONELLA ENTERICA which is the etiologic agent of TYPHOID FEVER. Salmonella enterica serovar Typhi,Salmonella typhosa
D013291 Streptococcus A genus of gram-positive, coccoid bacteria whose organisms occur in pairs or chains. No endospores are produced. Many species exist as commensals or parasites on man or animals with some being highly pathogenic. A few species are saprophytes and occur in the natural environment.

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