Table 1. Pairs of primers used in qRT-PCR analysis.

Gene	Forward Primer (5′- > 3′)	Reverse Primer (5′- > 3′)	Product Length (base pairs)
ATP6V0D2	TTCTTGAGTTTGAGGCCGAC	CAGCTTGAGCTAACAACCGC	144
CTSK	ATATGTGGGCCAGGATGAAAGTT	TCGTTCCCCACAGGAATCTCT	90
CD47	CGATGCCATGGTGGGAAACT	TCAGTGTTGAAGGCCGTGC	99
CD9	GCTGGGATTGTTCTTCGGGT	GCTTTGAGTGTTTCCCGCTG	171
DC-STAMP	AAGCGGAACTTAGACACAGGG	CAGCTAGGGCTTCGTGGAAA	101
GADPH	GCCTTCCGTGTTCCTACC	AGAGTGGGAGTTGCTGTTG	183
MCP-1	AGCCAACTCTCACTGAAGCC	GCGTTAACTGCATCTGGCTG	131
MMP-9	CGACTTTTGTGGTCTTCCCC	TAGCGGTACAAGTATGCCTCTG	83
OPG	GTGGAATAGATGTCACCCTGTGT	TTTGGTCCCAGGCAAACTGT	110
RANKL	CCCATCGGGTTCCCATAAAGT	AGCAAATGTTGGCGTACAGG	114
TRAcP5b	CGACCATTGTTAGCCACATACG	TCGTCCTGAAGATACTGCAGGTT	77
Y1R	CTCGCTGGTTCTCATCGCTGTGGAACGG	GCGAATGTATATCTTGAAGTAG	325

All primers used were located on two different exons to ensure that only properly spliced mRNA and not genomic DNA contaminants was amplified.