申请人:Nadler Jerry L.
公开号:US20090269313A1
公开(公告)日:2009-10-29
An encapsulation system for use in the treatment of diabetes (Types 1 or 2, and LADA) are provided. The system has (1) a delivery vehicle comprising a selectively permeable membrane that allows passage of glucose, insulin and other nutrients through the membrane, but prevents large molecules such as antibodies or inflammatory cells from passing through the membrane; (2) a population of islet cells or insulin producing cells encapsulated by said membrane; and (3) a biological response modifier that may be in contact with the membrane or encapsulated by the membrane. Generally, the biological response modifier is a compound, including resolved enantiomers, diastereomers, tautomers, salts and solvates thereof, having the following formula:
wherein:
X, Y and Z are independently selected from a member of the group consisting of C(R
3
), N, N(R
3
) and S;
R
1
is selected from a member of the group consisting of hydrogen, methyl, C
(5-9)
alkyl, C
(5-9)
alkenyl, C
(5-9)
alkynyl, C
(5-9)
hydroxyalkyl, C
(3-8)
alkoxyl, C
(5-9)
alkoxyalkyl, the R
1
being optionally substituted;
R
2
and R
3
are independently selected from a member of the group consisting of hydrogen, halo, oxo, C
(1-20)
alkyl, C
(1-20)
hydroxyalkyl, C
(1-20)
thioalkyl, C
(1-20)
alkylamino, C
(1-20)
alkylaminoalkyl, C
(1-20)
aminoalkyl, C
(1-20)
aminoalkoxyalkenyl, C
(1-20)
aminoalkoxyalkynyl, C
(1-20)
diaminoalkyl, C
(1-20)
triaminoalkyl, C
(1-20)
tetraaminoalkyl, C
(5-15)
aminotrialkoxyamino, C
(1-20)
alkylamido, C
(1-20)
alkylamidoalkyl, C
(1-20)
amidoalkyl, C
(1-20)
acetamidoalkyl, C
(1-20)
alkenyl, C
(1-20)
alkynyl, C
(3-8)
alkoxyl, C
(1-11)
alkoxyalkyl, and C
(1-20)
dialkoxyalkyl.