1082 ( ) ACTA UNIVERSITATIS MEDICINALIS NANJING(Natural Science) 30 8 10 8 / ( 210029) [ ] : / (sodium / iodide symporternis) : (real time polymerase chain reactionrt-pcr) NIS :RT-PCR : NIS mrna NIS mrna :NIS NIS NIS : NIS NIS [ ] / ; ; [ ] R736.1 [ ] A [ ] 1007-4368(10)08-1082-05 The expression and location of sodium / iodide symporter (NIS) in differentiated thyroid carcinoma and corresponding lymph nodes metastasis HU Yang-yingSHEN Mei-ping (Department of General Surgerythe First Affiliated Hospital of NJMUNanjing 210029China) [Abstract] Objective:To study the gene expression of sodium / iodide symporter (NIS) in both differentiated thyroid carcinoma (DTC)and correlated lymph nodes metastasisand explore the relationship between NIS expression and DTCand between NIS expression and the significance of radioactive iodine treatment for DTC. Methods:The expression of NIS in tissue specimens was evaluated by RT-PCR technique and immunohistochemistry. Results:The RT-PCR result showed that the expression of NIS mrna didn t have significant difference between tumor-adjacent tissues and DTC tissues. The NIS mrna expression in metastatic lymph nodes were lower compared with tumor and tumor-adjacent tissues. The immunohistochemistry result showed that NIS positive ratio in DTC and correlated lymph nodes tissue didn t have significant difference compared with that in normal thyroidrespectively. Conclusion:The NIS could be normally expressedbut NIS protein was mostly expressed in the cytoplasm rather than in the functional membranewhich has guiding significance for the radioiodine treatment of DTC. [Key words] sodium / iodide symporter; differentiated thyroid carcinoma; lymph nodes metastasis [Acta Univ Med Nanjing 10 30(08): 1082-10851216] / (sodium / iodide symporternis) 643 NIS [1] NIS NIS (Western blot ) NIS [ ] (BZ09053) NIS E-mail:nj-shenmp@sina.com [2]
30 8 (real time PCR polymerase chain reactionrt-pcr) NIS RCR : :5 -GTCGTG- NIS GTGATGCTAAGTG-3 :5 -CTCGGG- NIS TCAGGGTTAAAG-3 134 bp β-actin :5 -TTGCGTTACAC- CCTTTCTT-3 :5 -TGTCACCTTCAC- 1 CGTTCC-3 :150 bp PCR 1.1 NIS 1.1.1 PCR 3 RT-RCR : 1.2.2 06 1 ~09 4 I TSH 48 4% 38 HE HE 24 15 (graves ) 10 [3-4] 7 6 4 : 4 μm 50 SP 3 1 1.3 49 14 35 13~71 <45 29 45 09 NCCN TNM 28 2 6 13 PBS 1.1.2 TRIzol RT ( Promega )PCR ( )SYBR 2 Green ( Takara ) PCR 7500( ABI )NIS 2.1 RT-PCR NIS ( MILLIPORE ) 1.2 1.2.1 RT-PCR : / 10 8 1083 RNA TRIzol (9.793 75±1.735 24) (P > RNA RNA 0.05); CT 11.103 33± 1% RNA RNA 1.835 04 CT (P < 0.051 cdna PCR 1) RT-PCR CT CT ( Ct=Ct -Ct ) 2 - Ct ( Ct= Ct - Ct ) SPSS 13.0 Tamhane s T2 Fisher P < 0.05 Ct 8.245 00±1.687 72 (P < 0.05);
1084 30 8 10 8 2.2 3.5 3.0 49 2.5 NIS 33 67.3% 2.0 1.5 1 ; NIS 1.0 34 69.4% 1 0.5 0 ; NIS 28 57% 8 2 - Ct NIS 1 NIS (P < 0.0522) P < 0.05; # P < 1 PCR NIS NIS Fig 1 The RT-PCR result of the expression of NIS in thyroid (P > 0.053) tissues of different groups # Ct 2 - Ct 1 RT-PCR NIS mrna Tab 1 The RT-PCR result of the mrna expression of NIS in thyroid tissues of different groups (x ± s) (n=38) 10.638 16 ± 1.809 23 00.556 94 ± 0.052 32 P < 0.05; # P < (n=24) (n=15) (n=10) 9.793 75 ± 1.735 24 11.103 3 ± 1.835 04 8.245 00 ± 1.687 72 1 0.403 44 ± 0.070 57 # 2.925 64 ± 0.075 19 # A B C A: NIS (400 ); B: NIS (400 ); C: NIS (0 ) Fig 2 2 NIS The expression of NIS in each thyroid tissue by immunohistochemistry technique 2 NIS + + I I Tab 2 The expression of NIS in DTC by immunohistochemistry technique in different groups (n/n) I ( / ) ( / ) [5-6] 33 / 16 1 / 48 28 / 21 8 / 41 [7] NIS 34 / 15 1 / 48 P < 0.05 NIS 3 NIS NIS
30 8 : / 10 8 1085 Tab 3 3 NIS TMN The expression of NIS in patients with different agesgenders and TNM staging by immunohistochemistry technique (n = 15) 10 6 9 (n = 34) 23 22 25 < 45 (n = 29) 17 45 (n = ) 13 11 14 ~ (n = 30) 16 19 TMN (n) ~ (n = 19) 13 12 15 [18-9] NIS 3.3 NIS Ringel [10] NIS Dohán [11] NIS NIS RT- NIS PCR NIS NIS 3.1 NIS NIS RT-PCR NIS mrna NIS NIS NIS NIS NIS 49 NIS 1 [13-15] (P < 0.05) NIS NIS NIS [12] ECT (Western blot) [ ] NIS [1] Dohán ODe la Vieja AParoder Vet al. The sodium / iodide symporter(nis):characterizationregulationand med- [2] ical significance[j]. Endocr Rev0324(1):48-77 3.2 NIS [2]. / RT-PCR [J]. ( )0828(8):1027-1030 NIS mrna [3]. (P < 0.05) [J]. 07348: NIS 629-632 69.4% [4] Kononen JBubendorf LKallioniemi Aet al. Tissue mi- for high-throughput molecular profiling of tumor NIS croarrays NIS specimens[j]. Nat Med19984(7):844-847 ( 1216 )
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