A monoclonal antibody that defines basal cells of stratified epithelia in various human and rabbit tissues

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Abstract
Monoclonal antibodies were produced against monkey lung lavage fluid by using a mouuse hybridoma technique. One monoclonal antibody, KP8D4, specifically reacted with basal cells in human bronchial epithelia by immunohistological staining of acetone-fixed, frozen sections and it recognized a protein with an apparent molecular weight of 84000, as determined by gel immunoblotting. The distribution of this protein was immunohistochemically examined in various human tissues (lung, tongue, esophagus, stomach, intestine, liver, pancreas, salivary gland, spleen, thymus, heart, aorta, vena cava, prostate, breast, kidney, urinary bladder, thyroid, brain, skin, striated muscle) and various tissues of rats, rabbits and pigs. The results showed a specific affinity of KP8D4 to basal cells of stratified epithelia in the various human and rabbit tissues. This antibody may be a useful tool for studies of normal development and diverse pathological disorders.