Robert R. Robbins

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The effects of tumor necrosis factor-alpha (TNF-alpha) on interleukin-8 (IL-8) expression and generation were examined in primary cultured human airway epithelial cells (HAEC) and a human lung epithelial cell line (A549). TNF-alpha increased IL-8 mRNA and protein expression in HAEC in a concentration- and time-dependent manner and these effects were(More)
Analysis of thin sections shows that the blepharoplast in an early spermatid ofLycopodium consists of two basal bodies and the subtending spline apparatus. The latter has a 4-layered or Vierergruppe organization much like that reported for certain bryophytes and vascular plants. During the course of spermatid maturation the vertically lamellate S2 stratum(More)
Basal bodies in embryophyte spermatozoids develop from centrosomes which arisede novo in spermatid mother cells (SMC). The centrosomes at SMC spindle poles in those land plants producing biflagellated sperms comprise a coaxial pair of centrioles, a bicentriole (BC). Ultrastructural observations of antheridia of the aquatic liverwortRiella americana indicate(More)
RANTES is a C-C chemokine with strong chemoattractant and activating properties for eosinophils, basophils and T lymphocytes. We investigated the expression of RANTES in human airway epithelial cells and its modulation. Epithelial cells obtained from tracheas of donor lungs were stimulated with interleukin-1 beta (IL-1 beta), tumour necrosis factor-alpha(More)
Evidence indicates that centrosomes arisede novo in the spermatid mother cells (SMC). Each of the two centrosomes per SMC is composed of a pair of coaxial centrioles which are apposed at their proximal ends and connected only by the central cartwheel portion. Serial transections show that the triplets of the constituent centrioles imbricate in opposite(More)
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