1
|
Xu Q, Yu ZX, Xie YL, Bai L, Liang SR, Ji QH, Zhou J. MicroRNA-137 inhibits pituitary prolactinoma proliferation by targeting AKT2. J Endocrinol Invest 2022; 46:1145-1154. [PMID: 36427136 DOI: 10.1007/s40618-022-01964-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 11/07/2022] [Indexed: 11/27/2022]
Abstract
PURPOSE Prolactinoma is the most common type of pituitary adenoma. Most prolactinoma need medical treatment, but some of them are aggressive and require surgery. In previous decades, some miRNAs have been manifested as oncogenes or tumor suppressors. Consequently, miRNAs' abnormal expression involves tumorigenesis, invasion, and metastasis of different types of tumors, including pituitary tumors. The current study aim to explore the aggressiveness-associated miRNAs in prolactinoma and underlying molecular mechanisms based on the bioinformatic analysis and fundamental experiment studies. METHODS GSE46294 miRNA expression profile from the Gene Expression Omnibus (GEO) database was downloaded. Differentially expressed miRNAs (DEMs) were filtered from this data. Subsequently, the target genes of downregulated miRNAs were analyzed by Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment. RT-qPCR, western blot, and CCK-8 assays were used to validate the effect of miR-137 on the proliferation of MMQ cells through AKT2. Finally, the binding site of rat miR-137 to AKT2 were predicted by Targetscan and Bibiserv database, and verified by double luciferase reporter assay. RESULTS Twenty-four changed DEMs (fourteen upregulated and ten downregulated) were identified. Target genes of downregulated DEMs were classified into three groups by GO terms. KEGG pathway enrichment analysis revealed these target genes enriched in the PI3K-Akt pathway. We also confirmed that miR-137 can target AKT2 and inhibit the proliferation of MMQ cells induced by AKT2. CONCLUSION MiR-137 suppressed prolactinomas' aggressive behavior by targeting AKT2.
Collapse
Affiliation(s)
- Q Xu
- Department of Endocrinology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Z X Yu
- Department of Nephrology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - Y L Xie
- Department of Microbiology and Pathogen Biology, Basic Medical School, Air Force Medical University, Xi'an, 710032, China
- School of Life Sciences, Yan'an University, Yan'an, 716000, China
| | - L Bai
- Department of Microbiology and Pathogen Biology, Basic Medical School, Air Force Medical University, Xi'an, 710032, China
- School of Life Sciences, Yan'an University, Yan'an, 716000, China
| | - S R Liang
- Department of Endocrinology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
- Department of Endocrinology, Tangdu Hospital, Air Force Medical University, Xi'an, 710038, China
| | - Q H Ji
- Department of Endocrinology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China.
| | - J Zhou
- Department of Endocrinology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China.
| |
Collapse
|
2
|
Zhou Y, Cao HW, Ji QH. [Type 3C diabetes mellitus is an important subgroup of diabetes]. Zhonghua Nei Ke Za Zhi 2021; 60:9-12. [PMID: 33397015 DOI: 10.3760/cma.j.cn112138-20201110-00932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- Y Zhou
- Department of Endocrinology, Xi'an International Medical Center Hospital, Xi'an 710100, China
| | - H W Cao
- Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Q H Ji
- Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| |
Collapse
|
3
|
Zhang TT, Liu XM, Shi BY, Wang CJ, Mo ZH, Liu Y, Shan ZY, Yang WY, Li QM, Lyu XF, Yang JK, Xue YM, Zhu DL, Shi YQ, Huang Q, Zhou ZG, Wang Q, Ji QH, Li YB, Gao X, Lu JM, Zhang JQ, Guo XH. [ Efficacy and safety of Changsulin® compared with Lantus® in type 2 diabetes: a phase Ⅲ multicenter, randomized, open-label, parallel, controlled clinical trial]. Zhonghua Nei Ke Za Zhi 2020; 59:960-967. [PMID: 33256337 DOI: 10.3760/cma.j.cn112138-20200423-00417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Objective: To compare the efficacy and safety of Changsulin® with Lantus® in treating patients with type 2 diabetes mellitus (T2DM). Methods: This was a phase Ⅲ, multicenter, randomized, open-label, parallel-group, active-controlled clinical trial. A total of 578 participants with T2DM inadequately controlled on oral hypoglycemic agents were randomized 3∶1 to Changsulin® or Lantus® treatment for 24 weeks. The efficacy measures included changes in glycosylated hemoglobin (HbA1c), fasting plasma glucose (FPG), 2h postprandial plasma glucose (2hPG), 8-point self-monitoring of blood glucose (SMBG) profiles from baseline, and proportions of subjects achieving targets of HbA1c and FPG. The safety outcomes included rates of hypoglycemia, adverse events (AEs) and anti-insulin glargine antibody. Results: After 24 weeks of treatment, mean HbAlc decreased 1.16% and 1.25%, FPG decreased 3.05 mmol/L and 2.90 mmol/L, 2hPG decreased 2.49 mmol/L and 2.38 mmol/L in Changsulin® and in Lantus®, respectively. No significant differences could be viewed in above parameters between the two groups (all P>0.05). There were also no significant differences between Changsulin® and Lantus® in 8-point SMBG profiles from baseline and proportions of subjects achieving the targets of HbA1c and FPG (all P>0.05). The rates of total hypoglycemia (38.00% and 39.01% for Changsulin® and Lantus®, respectively) and nocturnal hypoglycemia (17.25% and 16.31% for Changsulin® and Lantus®, respectively) were similar between the two groups (all P>0.05). Most of the hypoglycemia events were asymptomatic, and no severe hypoglycemia were found in both groups. No differences were observed in rates of AEs (61.77% vs.52.48%) and anti-insulin glargine antibody (after 24 weeks of treatment, 6.91% vs.3.65%) between the two groups (all P>0.05). Conclusions: Changsulin® shows similar efficacy and safety profiles compared with Lantus® and Changsulin® treatment was well tolerated in patients with T2DM.
Collapse
Affiliation(s)
- T T Zhang
- Department of Endocrinology, Peking University First Hospital, Beijing 100034, China
| | - X M Liu
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - B Y Shi
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China
| | - C J Wang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Z H Mo
- Department of Endocrinology, The Third Xiangya Hospital of Central South University, Changsha 410013, China
| | - Y Liu
- Department of Endocrinology, The Second Hospital of Jilin University, Changchun 130041, China
| | - Z Y Shan
- Department of Endocrinology, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - W Y Yang
- Department of Endocrinology, China-Japan Friendship Hospital, Beijing 100029, China
| | - Q M Li
- Department of Endocrinology, PLA Rocket Force General Hospital, Beijing 100088, China
| | - X F Lyu
- Department of Endocrinology, PLA Army General Hospital, Beijing 100700, China
| | - J K Yang
- Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Y M Xue
- Department of Endocrinology, Nanfang Hospital of Nanfang Medical University, Guangzhou 510515, China
| | - D L Zhu
- Department of Endocrinology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Y Q Shi
- Department of Endocrinology, Shanghai Changzheng Hospital, Shanghai 200003, China
| | - Q Huang
- Department of Endocrinology, Shanghai Changhai Hospital, Shanghai 200433, China
| | - Z G Zhou
- Department of Endocrinology, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Q Wang
- Department of Endocrinology, China-Japan Friendship Hospital, Beijing 100029, China
| | - Q H Ji
- Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Y B Li
- Department of Endocrinology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - X Gao
- Department of Endocrinology, Zhongshan Hospital of Fudan University, Shanghai 200032, China
| | - J M Lu
- Department of Endocrinology, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - J Q Zhang
- Department of Endocrinology, Peking University First Hospital, Beijing 100034, China
| | - X H Guo
- Department of Endocrinology, Peking University First Hospital, Beijing 100034, China
| |
Collapse
|
4
|
Shi M, Ji QH. [Interpretation of identification and management of acute diabetic complications in national guidelines for the prevention and control of diabetes in primary care (2018)]. Zhonghua Nei Ke Za Zhi 2019; 58:921-923. [PMID: 31775459 DOI: 10.3760/cma.j.issn.0578-1426.2019.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- M Shi
- Department of Endocrinology and Metabolism, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
| | | |
Collapse
|
5
|
Jia AH, Xu SY, Ming J, Zhou J, Zhang WC, Hao PR, Ji QH. [The optimal cutoff value of waist-to-height ratio in Chinese: based on cardiovascular risk and metabolic disease]. Zhonghua Nei Ke Za Zhi 2018; 56:822-826. [PMID: 29136711 DOI: 10.3760/cma.j.issn.0578-1426.2017.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Waist-to-height ratio (WHtR), a measurement of the distribution of body fat, correlated with abdominal obesity indicating that it might be a better predictor of cardiovascular risk and metabolic disease. We, therefore, evaluated optimal WHtR cutoff points according to the risk of framingham risk score (FRS) and metabolic syndrome (MS) in Chinese. Methods: The subjects were from China National Diabetes and Metabolic Disorders Survey during 2007-2008. Receiver operating characteristic analysis was used to examine the optimal cutoff values of WHtR according to the risk of FRS and MS. Results: A total of 27 820 women and 18 419 men were included in the evaluation. The average age was (45.0±13.7) years. The proportions of FRS ≥10% and MS increased with WHtR both in men and women. The cutoff points of WHtR for the risk of FRS ≥10% and MS were 0.51, 0.52 in men, and 0.52, 0.53 in women, respectively. When FRS ≥10% and MS were taken into consideration with a certain weights, the pooled cutoffs of WHtR were 0.51 in men, and 0.53 in women, respectively. By using the similar method, the optimized cutoff points were 0.52, 0.51, 0.50 for men and 0.51, 0.53, 0.54 for women in age group 20-39, 40-59 and ≥60 years, respectively. Conclusions: The optimal cutoffs of WHtR are 0.51 in men, and 0.53 in women for FRS≥10% in combination with MS indicating that this WHtR cutoff points might be used as indexes to evaluate obesity and risk of obesity-related diseases.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Q H Ji
- Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi' an 710032, China
| |
Collapse
|
6
|
Sun GH, Qu N, Hu JQ, Shi RL, Zhang TT, Wen D, Wang YL, Wang Y, Zhu YX, Ji QH. [Risk for metastasis of lymph node between sternocleidomastoid and sternohyoid muscle in papillary thyroid cancer]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:253-258. [PMID: 28441800 DOI: 10.3760/cma.j.issn.1673-0860.2017.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the risk factors for metastasis of lymph nodes between sternocleidomastoid and sternohyoid muscle (LNSS) in papillary thyroid cancer (PTC). Methods: Papillary thyroid cancer patients with clinically positive lateral lymph node metastasis (cN1) who underwent surgery including LNSS dissection between May 1, 2013 and May 31, 2016 at the Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center were retrospectively studied. Logistic regression analysis was performed to evaluate possible clinicopathological factors related to LNSS metastasis. Results: In 85 patients, 54 patients (63.5%) showed LNSS in their surgical specimen, and 20 patients (23.5%) had pathologically positive LNSS metastasis. Patients with LNSS showed preoperatively higher levels of serum thyroid stimulating hormone (TSH) and thyroid peroxidase antibody (TPO-Ab) compared to patients only with fibrofatty tissues between sternocleidomastoid and sternohyoid muscle (P<0.05), and they also displayed a higher proportion of multifocality in ipsilateral thyroid lobe (P<0.05). Multi-factor analysis indicated that LNSS metastasis was correlated with original tumor size (OR=1.819, 95%CI 1.050-3.850, P=0.002) and Level Ⅳ lymph node metastasis (OR=2.190, 95%CI 1.132-2.334, P=0.005). Furthermore, the number of positive LNSS was tightly correlated to that of level Ⅳ lymph node metastasis(P<0.05). Conclusion: LNSS metastasis is occult but not quite rare in PTC. Patients with extensive lymph node metastasis in Level Ⅳhave a higher risk for metastasis of LNSS.
Collapse
Affiliation(s)
- G H Sun
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - N Qu
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - J Q Hu
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - R L Shi
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - T T Zhang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - D Wen
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y L Wang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y Wang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Y X Zhu
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Q H Ji
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| |
Collapse
|
7
|
Ji QH, Shi RL, Qu N. [The model of specialized training for diagnosis and treatment in thyroid cancer]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 51:641-643. [PMID: 27666699 DOI: 10.3760/cma.j.issn.1673-0860.2016.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Q H Ji
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China
| | - R L Shi
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China
| | - N Qu
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China
| |
Collapse
|
8
|
Zhang L, Ji QH, Ruge F, Lane C, Morris D, Tee AR, Dayan CM, Ludgate M. Reversal of Pathological Features of Graves' Orbitopathy by Activation of Forkhead Transcription Factors, FOXOs. J Clin Endocrinol Metab 2016; 101:114-22. [PMID: 26502358 DOI: 10.1210/jc.2015-2932] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Graves' orbitopathy (GO) is a disfiguring/distressing, inflammatory autoimmune condition. This intractable problem is caused by expansion of the orbital contents around the eye by excessive fat generation (adipogenesis) and overproduction of extracellular matrix components, especially hyaluronan (HA) from preadipocytes/fibroblasts (PFs). Current immunosuppressive/antiinflammatory treatments are largely ineffective and have unpleasant side effects, and a better therapeutic strategy through understanding GO-associated pathological features is needed. OBJECTIVE Previously we identified depot-specific HA synthase 2 regulation (HAS2; major source of HA), which facilitates orbit-specific HA accumulation during adipogenesis, and targeting phosphatidylinositol-3-kinase/mechanistic target of rapamycin-complex-1 pathways blocked both pathological features. The current study revealed low expression levels of Forkhead box O (FOXOs; critical downstream effectors of phosphatidylinositol-3-kinase) in orbital PFs through adipogenesis compared with sc levels. We aimed to dissect the role of FOXOs in GO pathogenesis to identify nonimmunosuppressive targets for GO treatment. DESIGN/SETTING/PARTICIPANTS Human orbital and sc primary PFs were treated with small interfering RNA/chemical inhibitor (AS1842856) of FOXOs or FOXO enhancer trifluoperazine hydrochloride (TFP; Food and Drug Administration approved drug), in serum-free medium for 24 hours, or TFP treatment in adipogenic medium for 15 days. MAIN OUTCOME MEASURES Quantitative PCR was used to measure HAS2 transcripts and the terminal adipogenesis differentiation marker lipoprotein lipase. HA accumulation in the medium was measured by an ELISA. RESULTS Substantially increased or decreased HAS2/HA production was observed by inhibiting (small interfering RNA or chemical inhibitor) or enhancing (TFP) FOXO expression, respectively. TFP treatment is also sufficient to counteract thyrotropin receptor-activated HAS2/HA production and block adipogenesis in orbital PFs. CONCLUSIONS FOXOs play a crucial repressor role in the regulation of HAS2/HA production and adipogenesis in orbital PFs. Our data reveal for the first time that resetting GO-associated pathological features through drug-targeted activation of FOXOs could provide a feasible nonimmunosuppressive therapeutic strategy for GO.
Collapse
Affiliation(s)
- L Zhang
- School of Medicine (L.Z., F.R., A.R.T., C.M.D., M.L.), Cardiff University, and Department of Ophthalmology (C.L., D.M.), Cardiff and Vale University Health Board, Heath Park, Cardiff CF14 4XN, United Kingdom; and Department of Endocrinology (Q.H.J.), First Affiliated Hospital of Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - Q H Ji
- School of Medicine (L.Z., F.R., A.R.T., C.M.D., M.L.), Cardiff University, and Department of Ophthalmology (C.L., D.M.), Cardiff and Vale University Health Board, Heath Park, Cardiff CF14 4XN, United Kingdom; and Department of Endocrinology (Q.H.J.), First Affiliated Hospital of Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - F Ruge
- School of Medicine (L.Z., F.R., A.R.T., C.M.D., M.L.), Cardiff University, and Department of Ophthalmology (C.L., D.M.), Cardiff and Vale University Health Board, Heath Park, Cardiff CF14 4XN, United Kingdom; and Department of Endocrinology (Q.H.J.), First Affiliated Hospital of Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - C Lane
- School of Medicine (L.Z., F.R., A.R.T., C.M.D., M.L.), Cardiff University, and Department of Ophthalmology (C.L., D.M.), Cardiff and Vale University Health Board, Heath Park, Cardiff CF14 4XN, United Kingdom; and Department of Endocrinology (Q.H.J.), First Affiliated Hospital of Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - D Morris
- School of Medicine (L.Z., F.R., A.R.T., C.M.D., M.L.), Cardiff University, and Department of Ophthalmology (C.L., D.M.), Cardiff and Vale University Health Board, Heath Park, Cardiff CF14 4XN, United Kingdom; and Department of Endocrinology (Q.H.J.), First Affiliated Hospital of Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - A R Tee
- School of Medicine (L.Z., F.R., A.R.T., C.M.D., M.L.), Cardiff University, and Department of Ophthalmology (C.L., D.M.), Cardiff and Vale University Health Board, Heath Park, Cardiff CF14 4XN, United Kingdom; and Department of Endocrinology (Q.H.J.), First Affiliated Hospital of Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - C M Dayan
- School of Medicine (L.Z., F.R., A.R.T., C.M.D., M.L.), Cardiff University, and Department of Ophthalmology (C.L., D.M.), Cardiff and Vale University Health Board, Heath Park, Cardiff CF14 4XN, United Kingdom; and Department of Endocrinology (Q.H.J.), First Affiliated Hospital of Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - M Ludgate
- School of Medicine (L.Z., F.R., A.R.T., C.M.D., M.L.), Cardiff University, and Department of Ophthalmology (C.L., D.M.), Cardiff and Vale University Health Board, Heath Park, Cardiff CF14 4XN, United Kingdom; and Department of Endocrinology (Q.H.J.), First Affiliated Hospital of Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| |
Collapse
|
9
|
Wang YL, Zhang RM, Luo ZW, Wu Y, Du X, Wang ZY, Zhu YX, Li DS, Ji QH. High frequency of level II-V lymph node involvement in RET/PTC positive papillary thyroid carcinoma. Eur J Surg Oncol 2007; 34:77-81. [PMID: 17954023 DOI: 10.1016/j.ejso.2007.08.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2007] [Accepted: 08/28/2007] [Indexed: 10/22/2022] Open
Abstract
AIMS To investigate the frequency and clinical significance of RET rearrangement in Chinese patients with papillary thyroid carcinoma (PTC) and discuss the role of RET rearrangement in therapeutic decision-making after the performance of level VI lymph node dissection and the 2002 AJCC staging system. METHODS RET/PTC-1 and RET/PTC-3 were detected in 126 PTCs using reverse transcription-polymerase chain reaction (RT-PCR) and direct sequencing. RESULTS RET rearrangement was detected in 18 cases of PTC. The patient group aged < 20 years had the highest frequency (3/6) of RET rearrangement among the age groups (< 20 years, 20-40 years and > or = 40 years; P=0.03). RET/PTC-1 positive patients were more likely to suffer from Hashimoto's thyroiditis simultaneously (P=0.02) while RET/PTC-3 positive patients had a higher frequency of extrathyroidal extension (P<0.01) and advanced T classification (P<0.01). RET rearrangement (OR=8.70, 95% CI 1.69-44.81), male (OR=3.88, 95% CI 1.41-10.69), age (OR=0.96, 95% CI 0.93-0.99), multifocality (OR=3.54, 95% CI 1.33-9.41) and advanced T classification (OR=7.32, 95% CI 2.91-18.40) were all identified as risk factors of level II-V lymph node involvement in the multivariate analysis. CONCLUSIONS The frequency of RET rearrangement in Chinese patients is low and age related. RET/PTC-1 and RET/PTC-3 are associated with different clinical pathological characteristics but not with lymph node involvement. The RET/PTC positive patients should receive more attention to lateral neck in the management of PTC.
Collapse
Affiliation(s)
- Y L Wang
- Department of Head & Neck Surgery, Cancer Hospital, Fudan University, Shanghai, China
| | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Abstract
Activation of Group III metabotropic glutamate receptors (mGluRs) by L(+)-2-amino-4-phosphonobutyric acid (L-AP4) has different effects on in vitro slice preparations of visual cortex (Jin & Daw, 1998) as compared with in vivo recordings from somatosensory cortex (Wan & Cahusac, 1995). To investigate the role of Group III mGluRs in the cat visual cortex, in vivo recordings were made of neurons in area 17 of the visual cortex of kittens and adult cats at different ages and the effect of iontophoretic application of L-AP4 (100 mM) was examined. Application of L-AP4 resulted in an increase of the spontaneous activity and visual response of neurons to visual stimulation, the former more than the latter. The effect of L-AP4 was greatest at 3-5 weeks of age with the effect on the visual response declining more rapidly than the effect on spontaneous activity. Consistent with work in rat cortex (Jin & Daw, 1998), the effect of L-AP4 was significantly greater in upper and lower layers than in middle layers. Whole-cell in vitro recordings from slices of rat visual cortex indicated that L-AP4 (50 mM) did not increase the number of spikes elicited by increasing levels of current injections. These results confirm that L-AP4 increases activity in vivo and reasons for the discrepancy with the in vitro results are discussed.
Collapse
Affiliation(s)
- C J Beaver
- Department of Ophthalmology and Visual Science, Yale University School of Medicine, New Haven, CT 06520-8061, USA
| | | | | | | |
Collapse
|