A double-stranded short interfering nucleic acid (siNA) molecule comprising a sense strand comprising the nucleotide sequence 5′-B GCCgAUCCAUACUGCGGAAUsU B-3′ (SEQ ID NO:398) and an antisense strand comprising the nucleotide sequence 5′-UUCCGCAGUAUGGAUCGGCUsU-3′ (SEQ ID NO:248), wherein B is an inverted abasic moiety, bolded nucleotides comprise 2′-O-methyl modifications, lower case nucleotides comprise 2′-fluoro modifications, italicized nucleotides are deoxynucleotides, and s is a phosphorothioate linkage.