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University of Illinois – Urbana-Champaign

1. Kaylan, Kerim Berk. Engineered microenvironments for studying liver progenitor differentiation.

Degree: MS, Bioengineering, 2016, University of Illinois – Urbana-Champaign

The bipotential differentiation of liver progenitor cells underlies liver development and bile duct formation as well as liver regeneration and disease. Both TGFβ and Notch signaling are known to play important roles in the liver progenitor specification process and subsequent tissue morphogenesis. However, the complexity of these signaling pathways and their currently undefined interactions with other microenvironmental factors, including extracellular matrix (ECM), remain barriers to complete mechanistic understanding. Utilizing a series of strategies, including co-cultures and cellular microarrays, we identified distinct contributions of different Notch ligands and ECM proteins in the fate decisions of bipotential mouse embryonic liver (BMEL) progenitor cells. In particular, we demonstrated a cooperative influence of Jagged-1 and TGFβ1 on cholangiocytic differentiation. We established ECM-specific effects using cellular microarrays consisting of 32 distinct combinations of collagen I, collagen III, collagen IV, fibronectin, and laminin. In addition, we demonstrated that exogenous Jagged-1, Delta-like 1, and Delta-like 4 within the cellular microarray format was sufficient to induce cholangiocytic differentiation. Further, by combining Notch ligand microarrays with shRNA-based knockdown of Notch ligands, we systematically examined the effects of both cell-extrinsic and cell-intrinsic ligand. Our results highlight the importance of divergent Notch ligand function and combinatorial microenvironmental regulation in liver progenitor fate specification. Advisors/Committee Members: Underhill, Gregory H (advisor).

Subjects/Keywords: liver progenitors; bipotential liver progenitors; hepatoblasts; hepatocytes; cholangiocytes; bile duct cells; liver progenitor differentiation; osteopontin; Opn; Spp1; albumin; Alb; morphogenesis; tissue morphogenesis; bile duct morphogenesis; bile duct formation; liver development; Notch; Notch signaling; Jagged-1; Jag1; Delta-like 1; Dll1; Delta-like 4; Dll4; transforming growth factor β; TGFβ; TGFβ signaling; TGFβ1; Extracellular matrix proteins (ECM); collagen I; collagen III; collagen IV; laminin; fibronectin; co-cultures; Green fluorescent protein (GFP); microenvironment; microenvironmental regulation; cell microenvironment; cellular microenvironment; cell microarrays; cellular microarrays; engineered microenvironments

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Kaylan, K. B. (2016). Engineered microenvironments for studying liver progenitor differentiation. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/90492

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Kaylan, Kerim Berk. “Engineered microenvironments for studying liver progenitor differentiation.” 2016. Thesis, University of Illinois – Urbana-Champaign. Accessed August 25, 2019. http://hdl.handle.net/2142/90492.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Kaylan, Kerim Berk. “Engineered microenvironments for studying liver progenitor differentiation.” 2016. Web. 25 Aug 2019.

Vancouver:

Kaylan KB. Engineered microenvironments for studying liver progenitor differentiation. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2016. [cited 2019 Aug 25]. Available from: http://hdl.handle.net/2142/90492.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kaylan KB. Engineered microenvironments for studying liver progenitor differentiation. [Thesis]. University of Illinois – Urbana-Champaign; 2016. Available from: http://hdl.handle.net/2142/90492

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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