Generation of suturable artificial cornea from the integration of exfoliated graphene with gelatin glycidyl methacrylate
Generation of suturable artificial cornea from the integration of exfoliated graphene with gelatin glycidyl methacrylate
批准号:
10547894
负责人:
Sina SHARIFI
金额:
$3.61万
依托单位国家:
美国
项目类别:
财政年份:
2022
资助国家:
美国
项目状态:
已结题
起止时间:
2022-04-01 至 2023-03-31
关键词:
AnimalsArchitectureAutomobile DrivingAwardBiologicalBlindnessCell CommunicationCell Differentiation processCell ProliferationCellsCommunitiesComplementCorneaData AnalysesDifferentiation and GrowthDiffusionDonor personEndotheliumEngineeringEpithelialExtracellular MatrixEyeFunctional disorderFundingGelatinGenerationsGlucoseGoalsGrantHybridsHydrogelsIn VitroInfectionKeratoplastyLaboratoriesManuscriptsMembraneMentorsMicrospheresMolecular and Cellular BiologyOperative Surgical ProceduresOryctolagus cuniculusOxygenPatientsPhasePostoperative CareQuality of lifeResearchResearch ProposalsScientistStressStromal CellsSupporting CellSurgical suturesTechniquesTissue EngineeringTissuesTrainingTreatment CostUnited States National Institutes of HealthWritingbiomaterial compatibilitycareercrosslinkdesignfaculty researchglycidyl methacrylategrapheneimplantationin vivoin vivo Modelleadership developmentmaterials sciencemechanical propertiesmultidisciplinarynanonotch proteinpreservationscaffoldskillssuccess
中文摘要
项目摘要
在这个项目中,我们建议设计一个混合支架从整合明胶甲基丙烯酸缩水甘油酯
(GELGYM)与剥离的原始石墨烯(EG),伴随着双交联技术,可以
用作可缝合的人工角膜。我们将确定(1)混合GELGYM膜是否作为一种
支持细胞生长和分化的生物相容性人工角膜;(2)混合物的能力
支架作为角膜替代物。 本文提出的分化和生物相容性研究将
提供与宿主细胞接触的杂交支架的生物整合程度的定量信息,
角膜细胞和细胞外基质在体外和体内条件下。
我们预期石墨烯的剥离、其在GELGYM水凝胶结构中的整合以及随后的
双交联可以在覆盖有纳米颗粒的水凝胶微结构中产生纳米颗粒微球形空腔,
石墨烯产生锚定点,可以承受撕裂,在施加物理应力后,
缝线穿过结构。这可以减少在抛光期间形成凹口的趋势,同时增强
结构的机械性能,并促进其植入患者体内。 此外,我们预计,
整合将进一步促进角膜细胞的细胞增殖和分化,
葡萄糖和氧气的扩散。 此外,我预计剥离的石墨烯的整合将积极地
调节上皮-内皮基质细胞和内皮基质细胞的相互作用。 这种方法的成功可以减少
或消除对供体角膜的需要,并对许多患者的生活质量产生积极影响。
研究目标得到了培训计划的支持,培训计划的重点是获得相关的多学科知识。
在细胞和分子生物学、病理生理学、组织工程学和材料学领域的专业知识
科学为此,一个“指导小组”,其中包括主要的导师,博士Chodosh,沿着与两个共同的
导师:冈萨雷斯博士和孔博士已经聚集。 此外,帕斯卡利斯博士作为一个独立的
合作者将支持动物处理、手术和术后护理方面的技术培训,沿着
数据分析和解释在将支架植入兔眼后的动物发现。
这群导师将在K99辅导阶段指导我实现我的长期职业目标,
成为一个科学家-在我的领域的领导者,拥有一个强大的独立实验室。 我认为这个奖项将
为我提供了一个很好的平台,使我能够成功地过渡到独立研究
教师的地位(这包括过渡到R 00阶段的奖励),并在长期内,以富有成效的
竞争独立的NIH(R 01)资金。 我的培训还将通过期间的课程进行补充
在改进陈述和写作技能方面的辅导阶段(赠款和手稿),手稿
审查、指导和发展领导能力和实验室管理技能。
英文摘要
PROJECT SUMMARY
In this project, we propose to design a hybrid scaffold from the integration of gelatin glycidyl methacrylate
(GELGYM) with exfoliated pristine graphene (EG), accompanied by double crosslinking technique, that can
function as a suturable artificial cornea. We will determine (1) whether hybrid GELGYM membranes acts as a
biocompatible artificial cornea that supports cell growth and differentiation;; and (2) the capability of the hybrid
scaffold to function as a corneal substitute. The differentiation and biocompatibility studies proposed here will
offer quantitative information on the degree of biointegration of the hybrid scaffold in contact with the host’s
corneal cells and extracellular matrix under in vitro and in vivo conditions.
We expect that exfoliation of graphene, its integration in the GELGYM hydrogel architecture and subsequent
double crosslinking can create an nano-microspherical cavities in the hydrogel microstructure covered with the
graphene create anchoring points that can withstand against tearing, after applying the physical stress to the
suture passing the construct. This can diminish the tendency to form notches during suturing, while enhancing
mechanical properties of the construct and facilitate its implantation in patients. Moreover, we expect
integration will further promote cell proliferation and differentiation of corneal cells, allowing for the appropriate
diffusion of glucose and oxygen. Additionally, I anticipate that integration of exfoliated graphene will positively
regulate epithelial-stromal and endothelial stromal cell interactions. The success of this approach can reduce
or eliminate the need for donor corneas and positively impact the quality of life for many patients.
The research aims are supported by a training plan focused on the acquisition of relevant multidisciplinary
expertise in the fields of cellular and molecular biology, pathophysiology, tissue-engineering and material
science. To this end, a “Mentoring Team” which includes the leading mentor, Dr. Chodosh, along with two co-
mentors: Dr. Gonzalez and Dr. Kong has been assembled. Moreover, Dr. Paschalis as an independent
collaborator will support on technical training on animal handling, surgery, and postoperative care along with
data analysis and interpretation of animal findings following implantation of the scaffold into rabbit eyes.
This group of mentors will guide me during the K99 mentored phase to achieve my long-term career goal of
becoming a scientist-leader in my field with a strong independent laboratory. I envision that this award will
provide me with an excellent platform from which to have a successful transition to independent research
faculty status (this includes the transition into the R00 phase of the award) and in the long term, to productively
compete for independent NIH (R01) funding. My training will also be complemented by courses during the
mentored phase in the improvement of presentation and writing skills (grants and manuscripts), manuscript
review, mentoring, and development of leadership abilities and laboratory management skills.
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DOI:
10.1002/mabi.202000379
发表时间:
2021-04
期刊:
Macromolecular bioscience
影响因子:
4.6
作者:
[Sharifi S, Islam MM, Sharifi H, Islam R, Huq TN, Nilsson PH, Mollnes TE, Tran KD, Patzer C, Dohlman CH, Patra HK, Paschalis EI, Gonzalez-Andrades M, Chodosh J]
通讯作者:
Chodosh J
DOI:
10.1167/tvst.9.13.41
发表时间:
2020-12
期刊:
Translational vision science & technology
影响因子:
3
作者:
[Sharifi S, Islam MM, Sharifi H, Islam R, Nilsson PH, Dohlman CH, Mollnes TE, Paschalis EI, Chodosh J]
通讯作者:
Chodosh J
DOI:
10.1038/s41598-021-02830-x
发表时间:
2021-12-02
期刊:
Scientific reports
影响因子:
4.6
作者:
[Sharifi S, Sharifi H, Akbari A, Chodosh J]
通讯作者:
Chodosh J
DOI:
10.1016/j.ajo.2021.02.021
发表时间:
2021-07
期刊:
AMERICAN JOURNAL OF OPHTHALMOLOGY
影响因子:
4.2
作者:
[Ma, Kevin K., Yuan, Amy, Sharifi, Sina, Pineda, Roberto]
通讯作者:
Pineda, Roberto
Critical media attributes in E-beam sterilization of corneal tissue.
角膜组织电子束灭菌中的关键培养基属性。
DOI:
10.1016/j.actbio.2021.10.033
发表时间:
2022-01-15
期刊:
Acta biomaterialia
影响因子:
9.7
作者:
[Sharifi S, Sharifi H, Akbari A, Lei F, Dohlman CH, Gonzalez-Andrades M, Guild C, Paschalis EI, Chodosh J]
通讯作者:
Chodosh J
共 7 条
Generation of suturable artificial cornea from the integration of exfoliated graphene with gelatin glycidyl methacrylate
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批准号:9976013
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项目类别:
-
资助金额:$10.27万
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财政年份:2020
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负责人:Sina SHARIFI
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依托单位:
海外基金