Materialidades ideológica y filosófica del documento educación para la vida

[Tesis] ( Maestría en Enseñanza Superior) U.A.N.L.

Régimen fiscal de la inversión extranjera en México

(Maestría en Contaduría con Especialidad en Estudios Fiscales) U.A.N.L.

Clemencia

UANL

De ortu, et progréssu cultus ac festi inmaculati conceptus beate dei genitricis urginis Mariae

UANL

Colección de los decretos espedidos por la H. Legislatura del Estado de Nuevo León, desde 1o. de Agosto de 1824 en que se instaló, hasta 16 de diciembre de 1830.

UANL

Sermones dichos en el Palacio Apostolico a la Santidad de Inocencio XII

UANL

Historia de los conflictos entre la religión y la ciencia

UANL

Compendium theologiae ascetico-mysticae beatae Mariae Virgini dicatum sive Institutiones theologiae mystica e fundamentalis quibus ordinariae viae perfectionis

UANL

First Steps in the history of our country

UANL

Déterminants macroéconomiques de la corruption.

Rapport de recherche

Pedagogia Rebsamen : Asuntos de metodología general : relacionados con la escuela primaria

UANL

Dérive sémantique et terminologique en traduction médicale

Département de linguistique et de traduction

L’ABC des fiducies entre vifs : aspects civils et fiscaux

Reproduit avec l'autorisation de la Chambre des notaires du Québec

Grecia y el Asia Menor

UANL

Adhesion and transcellular migration of neutrophils and B lymphocytes on fibroblasts

During tissue inflammation, infiltrated leukocytes may have physical contacts with fibroblasts. We observed that neutrophils and B lymphocytes adhered in a larger proportion than T cells on cultured fibroblasts. Microscopy showed that adhesion was also characterized by leukocyte engulfment by the fibroblasts. In migration assays, only neutrophils and B lymphocytes were selectively able to migrate through a fibroblast barrier. Adhesion and migration were increased by stimulation with tumor necrosis factor-alpha (TNF-alpha) and phorbol-12-myristate-13-acetate (PMA). Antibodies against ICAM-1/beta2 integrin blocked the interaction of neutrophils to fibroblasts. For B lymphocytes the couple VCAM-1/alpha4 integrin was also involved in this interaction. Human skin fibroblasts presented similar adhesion characteristics as rat cardiac fibroblasts. By measuring the distance between the border of migration holes and cadherin-positive adherens junctions, more than 65% of the holes correspond to the transcellular route over the paracellular route. Furthermore, vimentin staining revealed that the migration holes were highly nested by intermediate filaments in accordance with the transcellular route. Our results demonstrated that engulfment of neutrophils and B lymphocytes by fibroblasts resulted in selective passage by a transcellular route.