北海道医療大学学術リポジトリ
腫瘍の核医学診断と治療精度の向上を目指した新規 放射性 octreotide 誘導体の開発研究
著者 大島 伸宏
学位名 博士(薬学)
学位授与機関 北海道医療大学
学位授与年度 平成29年度 学位授与番号 30110乙第114号
URL http://id.nii.ac.jp/1145/00064643/
5
octreotide
29
[ ] , (SSTR)
(NET) .
NET , octreotide
DTPA g
111In
111In-DTPA-
D-Phe
1-
octreotide (
D-Phe(1), Fig. 1) , NET QOL
. , octreotide , b
90
Y
177Lu
. , octreotide ,
, . ,
, .
,
,
. ,
octreotide
D-Phe(1) Asp
111
In-DTPA-Asp
1-octreotide (Asp(1)),
111In-DTPA-Asp
0-
D-Phe
1-octreotide (Asp(0))
111
In-DTPA-
D-Phe
−1-Asp
0-
D-Phe
1-octreotide (
D-Phe(−1)) , (Fig. 1).
[ ] Asp(1) , Asp(0)
D
-Phe(−1) :
111
InCl
3,
D-Phe(1), Asp(1) Asp(0),
D-Phe(−1)
95% .
111In-DTPA-XX-Cys-Phe-D-Trp-Lys-Thr-Cys-Thr(ol)
FIg. 1. Chemical structures of 111In-DTPA-D-Phe1-octreotide derivatives
XX =D-Phe; D-Phe(1) Asp; Asp(1) Asp-D-Phe; Asp(0)
D-Phe-Asp-D-Phe; D-Phe(–1)
5
111
In pH pH
, Asp Asp(1), Asp(0)
D-
Phe(−1) ,
D-Phe(1) , Asp
.
Asp(1) Asp(0) : Asp(1) Asp(0) in vitro
SSTR AR42 J ,
. N
D-Phe Asp Asp(1)
,
D-Phe(1) , . ,
Asp(0) ,
D-Phe(1) , .
, octreotide , N
D-Phe
.
AR42J in vivo ,
D-Phe(1) Asp(0)
, . 1 3 Asp(0)
,
D-Phe(1) , 24 ,
D-
Phe(1) . Asp(0) 1 3
D-
Phe(1) , 24
D-Phe(1) .
, Asp(0)
111In-
DTPA-Asp-OH
D-Phe(1)
111In-DTPA-
D-Phe-OH ,
, .
D
-Phe(−1) : ,
,
111In-DTPA-
D-Phe-OH
D-
Phe(−1) .
D-Phe(−1)
,
D-Phe(1) ,
24
D-Phe(−1)
D-Phe(1) .
D-Phe(−1)
,
111In-DTPA-
D-
Phe-Asp-OH
111In-DTPA-
D-Phe-OH .
, ,
.
,
D-Phe(−1)
D-Phe(1) ,
D
-Phe(1) 4 , .
D-
Phe(−1)
D-Phe(1) SSTR , AR42J 37 °C
D