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MRL/MpJ-Faslpr/J
品系货号:000485 | 通用名称:MRL-Ipr
又名:淋巴细胞增殖小鼠、MRL-lpr 小鼠
摘要
此品系通常称为 MRL-lpr 或 lpr 突变品系。此品系为淋巴细胞增殖自发突变 (
Faslpr) 纯合小鼠,表现出全身自身免疫、异常 T 细胞增殖相关巨大淋巴结病、关节炎和免疫复合物肾小球肾炎。此品系小鼠可用作系统性红斑狼疮 (systemic lupus erythematosus, SLE) 和肖格伦 (Sicca) 综合征的病因研究并进行疗法评估。
点击此处即可获得有关 MRL-lpr 小鼠狼疮疾病表型的更多信息。
我们的临床前疗效检测服务可为您提供科学的专业知识以及一系列基于靶标和表型的检测结果(包括体内和终点指标),可用于对狼疮小鼠模型进行灵活的研究设计和方法开发。 欢迎查看我们的全方位服务平台。
Faslpr) 纯合小鼠,表现出全身自身免疫、异常 T 细胞增殖相关巨大淋巴结病、关节炎和免疫复合物肾小球肾炎。此品系小鼠可用作系统性红斑狼疮 (systemic lupus erythematosus, SLE) 和肖格伦 (Sicca) 综合征的病因研究并进行疗法评估。
点击此处即可获得有关 MRL-lpr 小鼠狼疮疾病表型的更多信息。
我们的临床前疗效检测服务可为您提供科学的专业知识以及一系列基于靶标和表型的检测结果(包括体内和终点指标),可用于对狼疮小鼠模型进行灵活的研究设计和方法开发。 欢迎查看我们的全方位服务平台。
Important Note: July 2007: This strain has been recovered from cryopreservation and the original phenotype was observed: The sixteen-week old mice have lymph nodes that were 4.5 (females) to 10.1 times (male) larger than age and sex matched individuals from the former colony. Splenomegaly is 3 to 6 times greater and their life spans were also greatly reduced. The former version of this line, which displayed a loss of lymphoproliferative phenotype, has been renamed MRL/MpJ-Faslpr/2J and is available as Stock No. 006825.
品系特点
自发突变
原始参考文献
浏览参考文献 > 当使用该小鼠品系发表文献时,请引用原始文献,并在材料方法中提供该品系的品系货号:JAX stock#000485
品系详情
淋巴细胞增殖自发突变 (Faslpr) 纯合小鼠表现出全身自身免疫、异常 T 细胞增殖相关巨大淋巴结病、关节炎和免疫复合物肾小球肾炎。从大约三月龄起,MRL-lpr/lpr 小鼠的循环免疫复合物水平显著升高,而野生型MRL 小鼠无此表型 (Hewicker 1990)。Faslpr 基因相关症状的发作和严重程度呈品系依赖性。例如,与对照品系的淋巴结重量相比,同源品系 C57BL/6J-Faslpr/Faslpr 的淋巴结重量为对照品系的 24 倍,MRL/Mp-Faslpr/Faslpr 为对照品系的 75 倍,同源品系 C3H/HeJ-Faslpr/Faslpr 的淋巴结重量增幅最高,为对照品系的 116 倍,由此可见,淋巴细胞增殖差异非常大 (Morse et al 1985)。 在肾脏病理差异方面,4-7 月龄 MRL/Mp-Faslpr/Faslpr 小鼠的差异非常大,而在 14-16 月龄 C57BL/6J 和 C3H/HeJ 遗传背景下的 Faslpr 纯合小鼠中可忽略不计 (Kelley and Roths 1985)。抗 dsDNA 自身抗体的自发产生同样受到影响,C57BL/6J、C3H/HeJ 和 MRL/Mp 遗传背景下 Faslpr/Faslpr 小鼠的放射性标记 dsDNA 结合百分比分别为 5%、26% 和 49% (Izui et al 1984)。MRL/Mp-Faslpr 雌鼠和雄鼠的平均寿命分别为 17 周和 22 周。与之相比,C57BL/6J 或 C3H/HeJ 遗传背景下雌鼠的平均寿命为 42 周 至 52 周 (Roths 1987)。MRL/Mp-Faslpr/Faslpr 小鼠品系已建立胚胎干细胞系 (Kawase et al 1994)。这种小鼠适合用作系统性红斑狼疮样自身免疫综合征模型。
与一组其他近交系相比,MRL/MpJ 及其祖先品系之一 LG/J 表现出更高的伤口愈合率。伤后 4 周,MRL/MpJ 背景小鼠的 2 mm 耳洞伤口愈合至 0-0.4 mm,而 C57BL/6 背景小鼠的伤口大小仍有 1.2-1.6 mm。伤后 15 天,C57BL/6 小鼠的耳洞伤口大小最多愈合 30%,而 MRL 小鼠愈合 85%。MRL/MpJ 小鼠的愈合过程更快、更完全,表现为肿胀增加、血管生成、成纤维细胞迁移、细胞外基质沉积以及瘢痕和纤维化减少。此外,毛囊及其伴生的皮脂腺再生程度也更高。MRL/MpJ 的其他祖先品系(C3H、C57BL/6 和 AKR)未表现出这种促进愈合的情况。骨髓移植显示,MRL/MpJ 愈合表型不易随骨髓转移,而是保留在经过辐照的宿主组织中。MRL/MpJ 小鼠中还报告过促进心脏伤口愈合的现象。此模型的有丝分裂指数非常高 (10-20%),与在非哺乳动物组织再生中观察到的值相似。McBrearty 等人使用 F2 代并与 MRL/MpJ-Faslpr x B6 后代进行回交定位作图,鉴定出伤口愈合的以下 QTL:在 MRL/MpJ 13 号染色体上的 D13Mit115 和 D13Mit129 区域分别鉴定出 heal2 和 heal3 基因座;在 MRL/MpJ 12 号染色体上的 D12Mit233 区域鉴定出 heal5 基因座;在 C57BL/6 8 号染色体上的 D8Mit211 区域鉴定出 heal1 基因座;在 MRL/MpJ 7 号染色体上的 D7Mit220 区域鉴定出高度提示性基因座。(Clark et al., 1998; Leferovich et al., 2001; Kench et al., 1999; McBrearty et al., 1998.)
通过微阵列分析和 SELDI ProteinChip 分析鉴定出多个基因和蛋白在 MRL/MpJ-Faslpr 与 C57BL/6 小鼠的耳洞伤口中有差异表达。表达模式的变化表明,与 C57BL/6 小鼠相比,MRL/MpJ 小鼠的炎症反应较少,转入组织修复阶段的时间较早。(Li et al., 2000 and 2001.)
Blankenhorn 等人发现,MRL/MpJ 雌鼠比雄鼠的伤口愈合更快、更完全。有些愈合 QTL 具有性别二态性,如 heal 2、3、7、8、10、11 对雄鼠的影响较大,heal 4、5、9 则对雌鼠的影响较大。MRL/MpJ 雄鼠去势后能改善伤口愈合程度,使之接近雌鼠,而 MRL/MpJ 雌鼠进行卵巢切除术后不会改善伤口愈合程度。(Blankenhorn et al., 2003)
与 B10.D2nSnJ 小鼠相比,MRL/MpJ 小鼠对 LPS 输注的反应表现为中性粒细胞在细支气管灌洗液中的蓄积减少,且骨髓嵌合体试验显示肺部炎症反应会随骨髓转移。在 MRL/MpJ 小鼠的脾细胞中,转化生长因子 β1 自体诱导减少;而在巨噬细胞中,转化生长因子 β1 对白介素 1β 和肿瘤坏死因子 α 的产生诱导虽有减少,但转化生长因子 β1 的产生并无明显减少。(Kench et al., 1999.)MRL-Faslpr 小鼠对麻风分枝杆菌也高度易感 (Yogi et al., 1989)。
品系建立
杰克森实验室通过品系 LG、AKR、C3H 和 C57BL/6 的杂交获得 MRL/Mp 品系,并在第 12 代近亲交配后首次观察到大量淋巴细胞增殖。到第 13 代时,可以同时选择淋巴细胞增殖阳性和阴性亚系,估计其基因组存在89% 一致型。通过 5 次杂交-互交循环,残留杂合性估计值从 11% 降至 1%,从而将突变基因 Faslpr 转移至 MRL 阴性品系 (Murphy and Roth 1978 58:51)。
参考文献
精选参考文献
当使用该小鼠品系发表文献时,请引用原始文献,并在材料方法中提供该品系的品系货号:JAX stock#000485
2001
Fas/fas ligand deficiency results in altered localization of anti-double-stranded dna b cells and dendritic cells.
Fields ML , et al.
2001
Heart regeneration in adult MRL mice.
Leferovich JM , et al.
2001
Analysis of gene expression in the wound repair/regeneration process.
Li X , et al.
健康报告 屏障设施级别描述 >
育种须知 更多繁育和饲养支持 >
由于具有 MRL 遗传背景的小鼠伤口愈合率较高,因此识别此品系个体小鼠时,耳洞法并非良策。繁育对生产2窝幼崽后即会发展出疾病表型。
繁育策略
纯合子雌性 x 纯合子雄性
销售和使用条款
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000485
MRL-Ipr
免疫学研究,器官研究,凋亡研究,肿瘤研究
参考文献|
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精选参考文献当使用该小鼠品系发表文献时,请引用原始文献,并在材料方法中提供该品系的品系货号:JAX stock#000485
2001Fas/fas ligand deficiency results in altered localization of anti-double-stranded dna b cells and dendritic cells.
Fields ML , et al.
2001Heart regeneration in adult MRL mice.
Leferovich JM , et al.
2001Analysis of gene expression in the wound repair/regeneration process.
Li X , et al.
2001Fas ligand (CD95L) protects neurons against perforin-mediated T lymphocyte cytotoxicity.
Medana I , et al.
2000Differential protein profile in the ear-punched tissue of regeneration and non-regeneration strains of mice: a novel approach to explore the candidate genes for soft-tissue regeneration
Li X , et al.
1999Aberrant wound healing and TGF-beta production in the autoimmune-prone MRL/+ mouse.
Kench JA , et al.
1998A new murine model for mammalian wound repair and regeneration.
Clark LD , et al.
1998Genetic determinants of autoimmune disease and coronary vasculitis in the MRL-lpr/lpr mouse model of systemic lupus erythematosus.
Gu L , et al.
1998Genetic analysis of a mammalian wound-healing trait.
McBrearty BA , et al.
1994Strain difference in establishment of mouse embryonic stem (ES) cell lines.
Kawase E , et al.
1994Comparative influence of steroid hormones and immunosuppressive agents on autoimmune expression in lacrimal glands of a female mouse model of Sjogren's syndrome.
Sato EH , et al.
1993The Fas protein is expressed at high levels on CD4+CD8+ thymocytes and activated mature lymphocytes in normal mice but not in the lupus-prone strain, MRL lpr/lpr.
Drappa J , et al.
1992Lacrimal and salivary gland inflammation in the C3H/Ipr autoimmune strain mouse: a potential mode for Sjogren's syndrome.
Johnson BC , et al.
1992Lymphoproliferation disorder in mice explained by defects in Fas antigen that mediates apoptosis.
Watanabe-Fukunaga R , et al.
1990Detection of circulating immune complexes in MRL mice with different forms of glomerulonephritis.
Hewicker M , et al.
1989The experimental inoculation with Mycobacterium leprae in autoimmune mice: results of MRL/lpr mice inoculated into the right hind foot (continued).
Yogi Y , et al.
1985Abnormalities induced by the mutant gene, lpr. Patterns of disease and expression of murine leukemia viruses in SJL/J mice homozygous and heterozygous for lpr.
Morse HC 3rd , et al.
1982Abnormalities induced by the mutant gene Ipr: expansion of a unique lymphocyte subset.
Morse HC 3rd , et al.
1978Spontaneous murine lupus-like syndromes. Clinical and immunopathological manifestations in several strains.
Andrews BS , et al.
1978Autoimmunity and lymphoproliferation: Induction by mutant gene lpr, and acceleration by a male-associated factor in strain BXSB mice
Murphy ED , et al. -
其他参考文献
2004Negative role of colony-stimulating factor-1 in macrophage, T cell, and B cell mediated autoimmune disease in MRL-Fas(lpr) mice.
Lenda DM , et al.
2004Regulation of NF-kappaB, Th activation, and autoinflammation by the forkhead transcription factor Foxo3a.
Lin L , et al.
2004Fas ligation on macrophages enhances IL-1R1-Toll-like receptor 4 signaling and promotes chronic inflammation.
Ma Y , et al.
2004CD1d deficiency exacerbates inflammatory dermatitis in MRL-lpr/lpr mice.
Yang JQ , et al.
2003Sexually dimorphic genes regulate healing and regeneration in MRL mice.
Blankenhorn EP , et al.
2003Effect of genetic deficiency of terminal deoxynucleotidyl transferase on autoantibody production and renal disease in MRL/lpr mice.
Molano ID , et al.
2003Genetic basis of tissue specificity of vasculitis in MRL/lpr mice.
Yamada A , et al.
2002Unusual expression of LINE-1 transposable element in the MRL autoimmune lymphoproliferative syndrome-prone strain.
Benihoud K , et al.
2002Anti-DNA autoreactivity in C4-deficient mice.
Paul E , et al.
2002Role of RANTES in the development of autoimmune tissue injuries in MRL-Fas lpr mice.
Tsukahara T , et al.
2002Impaired apoptosis, extended duration of immune responses, and a lupus-like autoimmune disease in IEX-1-transgenic mice.
Zhang Y , et al.
2001Cytokines in autoimmune lacrimal gland disease in MRL/MpJ mice.
Jabs DA , et al.
2001Treatment of MRL/lpr mice, a genetic autoimmune model, with the Ras inhibitor, farnesylthiosalicylate (FTS).
Katzav A , et al.
2001Spontaneous formation of germinal centers in autoimmune mice.
Luzina IG , et al.
2001Fas-FasL interaction modulates nitric oxide production in Trypanosoma cruzi-infected mice.
Martins GA , et al.
2000Autoantibody responses and pathology regulated by B7-1 and B7-2 costimulation in MRL/lpr lupus
Liang B , et al.
2000Confounding influences on phenotype expression in MRL/lpr mice
Reuter JD , et al.
1995Spontaneous development of corneal crystalline deposits in MRL/Mp mice.
Verhagen C , et al.
1985Interaction of mutant lpr gene with background strain influences renal disease.
Kelley VE , et al.