Abstract: An object of the present invention is to provide a polynucleotide having a modification site in a translated region with translation activity retained. The object can be achieved by a polynucleotide containing a translated region from a start codon to a stop codon, in which the translated region contains n codons, and the n is a positive integer of 2 or more, each of the n codons contains first, second and third nucleotides, and the first nucleotides in at least two codons of the n codons are sugar modified nucleotides.

Abstract: The present invention provides a nucleic acid conjugate represented by the following formula 1: wherein X is a double-stranded nucleic acid consisting of a sense strand and an antisense strand and comprising a duplex region of at least 11 base pairs, wherein in the double-stranded nucleic acid, an oligonucleotide strand having a chain length of 17 to 30 nucleotides in the antisense strand is complementary to any of target APCS mRNA sequences described in Tables 1-1 to 1-13, and the 3? end or the 5? end of the sense strand binds to S3, L1 and L2 are each independently sugar ligand, and Si, S2 and S3 are each independently a linker.

Abstract: The present invention relates to a nucleic acid conjugate represented by the following formula 1: wherein X is an oligonucleotide, L1 and L2 are each independently sugar ligand, and S1, S2 and S3 are each independently a linker.

Abstract: The present invention provides a nucleic acid having activity to suppress expression of MASP2, a pharmaceutical composition comprising the nucleic acid, and a prophylactic or therapeutic drug containing the nucleic acid for autoimmune diseases such as APS, SLE and the like and thrombosis in hemodialysis.

Abstract: The present invention provides a nucleic acid conjugate in which a sugar chain ligand is bonded to an oligonucleotide via a linker, the sugar chain ligand having O-bonded mannose at its non-reducing end.

Abstract: The present invention relates to a nucleic acid conjugate represented by the following formula 1: wherein X is an oligonucleotide, L1 and L2 are each independently sugar ligand, and S1, S2 and S3 are each independently a linker.

Abstract: The present invention aims to provide a novel nucleic acid capable of suppressing expression of ?2GPI, as well as a pharmaceutical composition for the prophylaxis or treatment of diseases associated with ?2GPI expression. The present invention solves the above-mentioned problem by providing an antisense oligonucleotide having a ?2GPI expression suppressive activity, a pharmaceutical composition containing the antisense oligonucleotide, and a prophylactic or therapeutic drug for autoimmune diseases including APS, SLE and the like, and thrombosis in hemodialysis that contains the antisense oligonucleotide and suppresses ?2GPI expression.

Abstract: The present invention provides a nucleic acid conjugate comprising: a double-stranded nucleic acid consisting of a sense strand and an antisense strand and comprising a duplex region of at least 11 base pairs; and a ligand part, wherein an oligonucleotide with a strand length of 17 to 30 nucleotides in the antisense strand is complementary to a target ?2GPI mRNA sequence, and the 3? end or 5? end of the sense strand has a ligand part represented by following formula (I), formula (II), formula (III), formula (IV) or formula (V).

Abstract: The present invention provides a nucleic acid having activity to suppress expression of ?2GPI, a pharmaceutical composition comprising the nucleic acid, and a prophylactic or therapeutic drug containing the nucleic acid for autoimmune diseases such as APS, SLE and the like and thrombosis in hemodialysis.

Abstract: The present invention provides a nucleic acid having activity to suppress expression of ?2GPI, a pharmaceutical composition comprising the nucleic acid, and a prophylactic or therapeutic drug containing the nucleic acid for autoimmune diseases such as APS, SLE and the like and thrombosis in hemodialysis.

Abstract: The present invention provides a nucleic acid having activity to suppress expression of ?2GPI, a pharmaceutical composition comprising the nucleic acid, and a prophylactic or therapeutic drug containing the nucleic acid for autoimmune diseases such as APS, SLE and the like and thrombosis in hemodialysis.