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中华口腔医学研究杂志(电子版) ›› 2013, Vol. 07 ›› Issue (02) : 88 -93. doi: 10.3877/cma.j.issn.1674-1366.2013.02.002

基础研究

miR-135b 和miR-335 在不同年龄人牙髓细胞成牙本质向分化中的差异表达
廖文灿1, 蒋宏伟1, 凌均棨1,()   
  1. 1. 510055 广州,中山大学光华口腔医学院·附属口腔医院,广东省口腔医学重点实验室
  • 收稿日期:2012-11-24 出版日期:2013-04-01
  • 通信作者: 凌均棨
  • 基金资助:
    卫生部部属(管)医院2010-2012年度临床学科重点项目(显微牙髓治疗导航技术提高再处理患牙疗效的研究)国家自然科学基金(81170932)

Differential expression of miR-135b and miR-335 in age-related human dental pulp cells during odontogenic differentiation

Wen-can LIAO1, Hong-wei JIANG1, Jun-qi LING1,()   

  1. 1. Guanghua School of Stomatology,Hospital of Stomatology,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Stomatology,Guangzhou 510055,China
  • Received:2012-11-24 Published:2013-04-01
  • Corresponding author: Jun-qi LING
引用本文:

廖文灿, 蒋宏伟, 凌均棨. miR-135b 和miR-335 在不同年龄人牙髓细胞成牙本质向分化中的差异表达[J/OL]. 中华口腔医学研究杂志(电子版), 2013, 07(02): 88-93.

Wen-can LIAO, Hong-wei JIANG, Jun-qi LING. Differential expression of miR-135b and miR-335 in age-related human dental pulp cells during odontogenic differentiation[J/OL]. Chinese Journal of Stomatological Research(Electronic Edition), 2013, 07(02): 88-93.

目的

探讨不同年龄阶段人牙髓细胞(HDPCs)在矿化诱导前后miR-135b 和miR-335的表达变化,及其在HDPCs 分化中的作用。

方法

提取青年(18 ~22 岁)及中年(46 ~48 岁)临床就诊患者第三磨牙的HDPCs,经体外培养至第3 代后,用矿化诱导液诱导细胞向成牙本质细胞方向分化,对细胞结节形成情况进行观察并用Von Kossa 染色、碱性磷酸酶检测确定HDPCs 分化情况,分别取培养0、7、14、21 和28 d 的细胞用定量反转录聚合酶链反应(qRT-PCR)检测miR-135b和miR-335 的表达变化。

结果

青年组HDPCs 中miR-135b 和miR-335 显著高于中年组(P<0.05);经矿化诱导后,青年组miR-135b 和miR-335 表达逐渐降低(P<0.05),而中年组miR-135b 表达上升,miR-335 表达则维持在低水平。

结论

miR-135b 和miR-335 在不同年龄阶段HDPCs 中差异表达,可能在HDPCs 成牙本质向分化中具有重要作用。

Objective

To identify the expression of miR-135b and miR-335 of age-related in ages human dental pulp cells (HDPCs) during odontogenic differentiation.

Methods

Human dental pulp cells from youth adults (18-22 years) and middle-aged adults (46-48 years) were isolated,cultured and identified in vitro,the expression of miR-135b and miR-335 in HDPCs were examined during odontogenic differentiation by qRT-PCR. The formation of cellular nodules were determined. The cell differentiation was evaluated by Von Kossa staining and activity of alkaline phosphatase.

Results

The expression of miR-135b and miR-335 in youth HDPCs was significantly higher than that of middleaged group (P<0.05). The miR-135b and miR-335 expression in youth HDPCs gradually decreased with the cell passage and odontoblasts directional differentiation (P<0.05). In contrast,the expression of miRNA-135b was significantly increased in cell with differentiation in middle-aged HDPCs (P<0.05).

Conclusion

The expression of miR-135b and miR-335 might play important roles in agerelated human dental pulp cells during directional differentiation into odontoblastic cell.

表1 引物序列
图1 HDPCs 矿化诱导前后形态学观察(Von Kossa × 50) 矿化结节成深褐或黑色,细胞基质成浅灰色,结果显示,青年组牙髓细胞矿化诱导后7 d 染色呈弱阳性(C),14 d 形成明显矿化结节(E);中年组牙髓细胞矿化诱导后7 d 无明显结节形成(D),14 d 形成少量矿化结节(F);对照组(7 d 未矿化,A、B)染色结果呈阴性
图2 不同年龄阶段HDPCs 诱导分化过程中ALP 活性变化 青年组牙髓细胞分化5 d 始ALP 活性增强 (P<0.01),11 d 达峰值,随后逐渐降低并持续在较稳定水平;而中年组牙髓细胞分化7 d始ALP 活性增强(P<0.01),17 d 达峰值,随后迅速降低(与同组0 天组进行组间比较,aP<0.01)
图3 miR-135b 在牙髓细胞矿化诱导过程中的表达 青年组miR-135b 经矿化诱导后表达降低,中年组miR-135b 经矿化诱导后表达上调(aP<0.05;与同组0 d 相比,bP<0.01)
图4 miR-335 在牙髓细胞矿化诱导过程中的表达 青年组miR-335 经矿化诱导后表达降低,中年组miR-335 经矿化诱导后表达无明显变化(aP<0.05;与同组0 d 相比,bP<0.01)
1
Gronthos S,Brahim J,Li W,et al. Stem cell properties of human dental pulp stem cells. J Dent Res,2002,81(8):531-535.
2
Lee YS,Nakahara K,Pham JW,et al. Distinct roles for Drosophila Dicer-1 and Dicer-2 in the siRNA/miRNA silencing pathways. Cell,2004,117(1):69-81.
3
Judson RL,Babiarz JE,Venere M,et al. Embryonic stem cellspecific microRNAs promote induced pluripotency. Nat Biotechnol,2009,27(5):459-461.
4
Visvanathan J,Lee S,Lee B,et al. The microRNA miR-124 antagonizes the anti-neural REST/SCP1 pathway during embryonic CNS development. Genes Dev,2007,21(7):744-749.
5
Gong Q,Wang R,Jiang H,et al. Alteration of microRNA expression of human dental pulp cells during odontogenic differentiation. J Endod,2012,38(10):1348-1354.
6
Murray PE,Stanley HR,Matthews JB,et al. Age-related odontometric changes of human teeth. Oral Surg Oral Med Oral Pathol Oral Radiol Endod,2002,93(4):474-482.
7
He L,Hannon GJ. MicroRNAs: small RNAs with a big role in gene regulation. Nat Rev Genet,2004,5(7):522-531.
8
Krichevsky AM,Sonntag KC,Isacson O,et al. Specific microRNAs modulate embryonic stem cell-derived neurogenesis.Stem Cells,2006,24(4):857-864.
9
张萍,朱聪惠,张纲,等. 人牙髓干细胞向成牙本质细胞定向分化过程中miRNAs 表达谱筛选及鉴定. 实用口腔医学杂志,2011,27(2):212-216.
10
杨明聪,向学熔,范小平. 人牙髓细胞中差异表达miRNA 的筛选及靶基因预测. 第三军医大学学报,2011,33(11):1132-1135.
11
Mizuno Y,Yagi K,Tokuzawa Y,et al. miR-125b inhibits osteoblastic differentiation by down-regulation of cell proliferation. Biochem Biophys Tes Commun,2008,368 (2):267-272.
12
Schaap-Oziemlak AM,Raymakers RA,Bergevoet SM,et al.MicroRNA hsa-miR-135b regulates mineralization in osteogenic differentiation of human unrestricted somatic stem cells. Stem Cells Dev,2010,19(6):877-885.
13
Tomé M,López-Romero P,Albo C,et al. miR-335 orchestrates cell proliferation,migration and differentiation in human mesenchymal stem cells. Cell Death Differ,2011,18(6):985-995.
14
Li Z,Hassan MQ,Volinia S,et al. A microRNA signature for a BMP2-induced osteoblast lineage commitment program. Proc Natl Acad Sci U S A,2008,105(37):13906-13911.
15
Qin W,Yang F,Deng R,et al. Smad 1/5 is involved in bone morphogenetic protein-2-induced odontoblastic differentiation in human dental pulp cells. J Endod,2012,38(1):66-71.
16
Zhang J,Tu Q,Bonewald LF,et al. Effects of miR-335-5p in modulatingosteogenicdifferentiationbyspecifically downregulating Wnt antagonist DKK1. J Bone Miner Res,2011,26(8):1953-1963.
17
Liu L,Ling J,Wei X,et al. Stem cell regulatory gene expression in human adult dental pulp and periodontal ligament cells undergoing odontogenic/osteogenic differentiation. J Endod,2009,35(10):1368-1376.
18
Scheller EL,Chang J,Wang CY. Wnt/beta-catenin inhibits dental pulp stem cell differentiation. J Dent Res,2008,87(2):126-130.
19
Tranasi M,Sberna MT,Zizzari V,et al. Microarray evaluation of age-related changes in human dental pulp. J Endod,2009,35(9):1211-1217.
20
Huang X,Xu S,Gao J,et al. miRNA expression profiling identifies DSPP regulators in cultured dental pulp cells. Int J Mol Med,2011,28(4):659-667.
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