Bioengineered Tissues For Uterine Reconstruction
用于子宫重建的生物工程组织
基本信息
- 批准号:10582724
- 负责人:
- 金额:$ 49.69万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2022
- 资助国家:美国
- 起止时间:2022-03-02 至 2027-01-31
- 项目状态:未结题
- 来源:
- 关键词:AdenomyosisAffectAllogenicAnatomyAsherman SyndromeAutologousBiologyBiomechanicsBiomedical EngineeringBiotechnologyCellsCercopithecidaeCharacteristicsClinicalComplexCongenital AbnormalityDefectDevelopmentDimensionsEndometrialEndometriumEngineeringExcisionExtracellular MatrixFailureFemale infertilityFiberFunctional RegenerationGlandGoalsGravidGrowthHumanImmunologicsImmunosuppressionImplantInfertilityKnowledgeLabelLegal patentLifeLive BirthMeasuresMenstrual cycleMenstruationModelingMyometrialNatural regenerationNatureOperative Surgical ProceduresOrganOryctolagus cuniculusPartner in relationshipPathologyPatternPeriodicityPeripheralPhysiologicalPhysiologyPlacentationPolymersPre-Clinical ModelPregnancyPrimatesProcessProductionPropertyPublishingRecording of previous eventsRelaxationReportingReproductive PhysiologyRhesusSeriesSourceSpontaneous abortionStimulusStressStructureSurfaceTechnologyTestingThickTimeTissue EngineeringTissuesTranslatingTransplantationUterine FibroidsUterusWomanWorkimplantationmyometriumnatural Blastocyst Implantationnonhuman primateoffspringolder womenreconstructionregenerative biologyrepairedreproductiverestorationscaffolduterine receptivity
项目摘要
Summary
Uterine-factor infertility affects up to 8.0% of infertile women, 13.3% of those with a history of miscarriage, 24.5%
of those with miscarriage and infertility and 1:500 or 1.5 million women worldwide. The use of human allogeneic
uterine tissues is a good option for uterine reconstruction, but its clinical use can be compromised by donor
shortage, and immunologic complications. Alternatives are needed. Recently, we reported, in Nature
Biotechnology, the application of autologous cell seeded-bioengineered uterine constructs for subtotal organ
replacement in a rabbit model. The engineered constructs maintained luminal patency, developed native uterine
tissue-like cellular and acellular structure and biomechanical properties; and supported embryo attachment,
placentation, pregnancy, and full-term delivery of viable offspring following natural mating. While rabbits provide
proof-of principle for this approach, they do not have a simplex uterus or monthly menstrual cyclicity. The most
appropriate preclinical model that parallels the uterine structure and function of women are old-world monkeys
who have a relatively thick simplex uterus, a monthly menstrual cycle including cycles of growth, differentiation,
degeneration (menses), and regeneration during their reproductive life. Recently, we completed a series of tests
using bioengineered implants that accommodate the thicker simplex uterus of NHPs and assessed structural
maturation; but did not assess the contribution of seeded vs. peripheral cells and matrix production in structural
regeneration, or their relationship to native uterine/endometrial biology and function. To this end, the goal of this
study is to measure the ability of autologous cell-seeded polymer scaffolds to reproduce primate-like uterine
tissue-like structure and function with significant surgically created uterine defects. The approach is to identify
the cellular and acellular origin of structural and functional regeneration; thus exploring the biology of the
regeneration process in these bioengineered implants. The clinical potential for successful treatment of uterine
factor infertility includes repair of adenomyosis/adenomyomas and uterine fibroid resection; restoration of
endometrial function in Asherman’s Syndrome; and reconstruction of normal uterine anatomy and function in
women with congenital abnormalities. Aim 1 will assess the structural development of the seeded bioengineered
implants and test the hypotheses that these implants develop native uterine tissue-like structure and size; consist
of both labeled seeded myometrial/endometrial and peripheral cells that contribute cellular and acellular
development similar to native tissue. Aim 2 will assess the functional development of bioengineered uterine
constructs and will test the hypotheses that they develop biomechanical and contractile properties similar to that
of native uteri; and functional endometrial markers consistent with normal uterine receptivity, implantation and
pregnancy. These studies will translate the work done in rabbits to a primate model that is highly relevant in
structure and physiology to that of women, and help us better understand the underlying biology of a
bioengineering approach for treating uterine factor infertility.
总结
项目成果
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{{ truncateString('ANTHONY ATALA', 18)}}的其他基金
Bioengineered Tissues For Uterine Reconstruction
用于子宫重建的生物工程组织
- 批准号:
10420259 - 财政年份:2022
- 资助金额:
$ 49.69万 - 项目类别:
Bioprinting Patterning for Cell-Laden Constructs
细胞负载结构的生物打印图案
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9279982 - 财政年份:2017
- 资助金额:
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- 批准号:
7630939 - 财政年份:2008
- 资助金额:
$ 49.69万 - 项目类别:
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