Organ distribution of iodide transporter (symporter) in the rat: immunohistochemical study.
Iodide transporter/symporter (NIS) was identified immunohistochemically in rat tissues using specific antipeptide serum. Anti-NIS serum was raised in New Zealand white rabbits immunized with a conjugate of synthetic NIS peptide (39-53) with bovine serum albumin. Immunohistochemical analysis was performed by avidine-biotin complex method. NIS immunoreactivity was visualized in the thyroid gland, gastric and small intestine mucosa, anterior pituitary, adrenal medulla, pancreatic islets, kidney, chorioid plexus and several brain and spinal cord nuclei. When using antiserum preincubated with synthetic NIS peptide (39-53) or rat thyroid homogenate containing NIS, no significant stain of the thyroid gland was detected. These findings suggest that NIS is widely distributed and that the method used is suitable for studying the distribution of NIS in rats.
The Fourth Department of Internal Medicine, Aichi Medical University, Nagakute, Aichi, Aichi 480-11, Japan.
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Mitsuma
N
Rhue
Y
Hirooka
M
Kayama
Y
Yokoi
Y
Mori
J
Ping
K
Adachi
T
Wago
M
Ohtake
J
Takagi
T
Nogimori
J
Sakai