Caroline N. Dealy, Ph.D.
Associate ProfessorCenter for Regenerative Medicine and Skeletal Development
Department of Reconstructive Sciences
Associate Director
Skeletal, Craniofacial and Oral Biology Graduate Program
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Academic Office Location: Department of Reconstructive Sciences University of Connecticut Health Center 263 Farmington Avenue Farmington, CT 06030-3705 |
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| Phone: | 860-679-1193 |
| Fax: | 860-679-2910 |
| Website(s): |
Genetics & Developmental Biology Graduate Program Skeletal, Craniofacial & Oral Biology Graduate Program Dealy Lab Page |
Education
Awards
| Degree | Institution | Major |
|---|---|---|
| Ph.D. | University of Connecticut | Developmental Biology |
| B.S. | University of New Hampshire | Animal Sciences |
Awards
| Name of Award/Honor | Awarding Organization |
|---|---|
| 2012 Finalist, Connecticut Women of Innovation Award In Entrepreneurial Innovation and Leadership | Connecticut Technology Council |
| Basil O’Connor Research Scholar Award: 1993-1996 | March of Dimes Foundation |
| New Investigator Award: 1992-1995 | Donaghue Medical Research Foundation |
| Eli Lilly Award | Eli Lilly Corporation and the American Teratology Society |
| James G. Wilson Award for Research Excellence | American Teratology Society |
The overall goals of Dr. Dealy’s research are to understand the molecular and cellular signals controlling development of the vertebrate limb and differentiation of the limb skeletal elements; and to harness this information to assist in development of novel regenerative approaches for lost or damaged skeletal tissue. Dr. Dealy’s research includes identification and mechanistic study of the genes and signals that control cartilage and joint differentiation and homeostasis, and exploring the potential for human stem cells for repair and regeneration of limb tissue including articular cartilage. These studies are designed to provide insight into the mechanisms and potential treatments for debilitating human conditions including osteoarthritis, congenital limb malformation, traumatic limb loss, and chondrodysplasia.
Molecular regulation of limb and skeletal development
Signals provided by growth factors and extracellular matrix molecules are critical for the development and differentiation of limb skeletal elements. Dr. Dealy’s research program is investigating the roles of the EGFR/ErbB signaling network, and the matrix macromolecule hyaluronan, in limb and skeletal development. These studies have revealed novel functions for these signals in limb patterning, chondrogenic differentiation, and joint formation. Dr. Dealy is continuing to investigate the molecular mechanisms whereby EGFR/ErbB signaling and hyaluronan regulate cartilage and joint development, and is also investigating roles for these signals in maintenance of articular cartilage homeostasis, and in regeneration of limb tissue lost due to injury.
Use of human stem cells for cartilage repair and regeneration
Exciting potential exists for the use of human stem cells for the repair and regeneration of cartilage or limb tissue lost due to age, disease or injury. Dr. Dealy’s research program is investigating the potential for chondrogenic cells derived from human stem cells to repair damaged cartilage and limb tissue in vivo. These studies utilize human embryonic stem cells (hESC) and human induced pluripotent stem cells (iPSC), which are somatic cells re-programmed to a pluripotent state, which have been directed to undergo differentiation into the chondrogenic lineage. Dr. Dealy is testing the ability of the stem cell-derived chondrogenic cells to repair damaged articular cartilage in the joints of osteoarthritic mice, and ongoing work will investigate the potential for stem cell-derived skeletal progenitors in restoring limb tissue lost to traumatic injury. Dr. Dealy is also leading a joint effort between the University of Connecticut and the Connecticut biotechnology startup Chondrogenics, Inc. to develop the potential of human stem-cell derived chondrogenic cells as a future therapy for osteoarthritis.
Molecular regulation of limb and skeletal development
Signals provided by growth factors and extracellular matrix molecules are critical for the development and differentiation of limb skeletal elements. Dr. Dealy’s research program is investigating the roles of the EGFR/ErbB signaling network, and the matrix macromolecule hyaluronan, in limb and skeletal development. These studies have revealed novel functions for these signals in limb patterning, chondrogenic differentiation, and joint formation. Dr. Dealy is continuing to investigate the molecular mechanisms whereby EGFR/ErbB signaling and hyaluronan regulate cartilage and joint development, and is also investigating roles for these signals in maintenance of articular cartilage homeostasis, and in regeneration of limb tissue lost due to injury.
Use of human stem cells for cartilage repair and regeneration
Exciting potential exists for the use of human stem cells for the repair and regeneration of cartilage or limb tissue lost due to age, disease or injury. Dr. Dealy’s research program is investigating the potential for chondrogenic cells derived from human stem cells to repair damaged cartilage and limb tissue in vivo. These studies utilize human embryonic stem cells (hESC) and human induced pluripotent stem cells (iPSC), which are somatic cells re-programmed to a pluripotent state, which have been directed to undergo differentiation into the chondrogenic lineage. Dr. Dealy is testing the ability of the stem cell-derived chondrogenic cells to repair damaged articular cartilage in the joints of osteoarthritic mice, and ongoing work will investigate the potential for stem cell-derived skeletal progenitors in restoring limb tissue lost to traumatic injury. Dr. Dealy is also leading a joint effort between the University of Connecticut and the Connecticut biotechnology startup Chondrogenics, Inc. to develop the potential of human stem-cell derived chondrogenic cells as a future therapy for osteoarthritis.
Accepting Lab Rotation Students: Fall '13, Spring '14
Lab Rotation Projects
Ongoing projects include:
• Regulation of articular cartilage differentiation and homeostasis by matrix and growth factors
• Genetic control of skeletal development and regeneration
• Stem cells as models for cartilage disease
• Stem cells for repair or regeneration of cartilage or limb tissue
Journal Articles
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The potential of human embryonic stem cells for articular cartilage repair and osteoarthritis
(2012) Rheumatology Journal (Accepted)
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Pleiotropic patterning response to activation of Shh signaling in the limb apical ectodermal ridge
(2011) Dev Dyn 5 (240) 1289-1302
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Direct and progressive differentiation of human embryonic stem cells into the chondrogenic lineage
(2010) Journal of Cellular Physiology 3 (224) 664-671
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Conditional inactivation of Has2 reveals a crucial role for hyaluronan in skeletal growth, patterning, chondrocyte maturation and joint formation in the developing limb
(2009) Development 16 (136) 2825-2835
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Hyaluronan in limb morphogenesis
(2007) Developmental Biology 2 (305) 411-420
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Requirement for ErbB2/ErbB signaling in developing cartilage and bone
(2007) Development Growth and Differentiation 6 (49) 503-513
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Studies on the role of Dlx5 in regulation of chondrocyte differentiation during endochondral ossification in the developing mouse limb
(2007) Development Growth and Differentiation 6 (49) 515-521
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Heparan sulfate proteoglycans including syndecan-3 modulate BMP activity during limb cartilage differentiation
(2006) Matrix Biology 1 (25) 27-39
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Role of IGFBP2, IGF-I and IGF-II in regulating long bone growth
(2005) Bone 6 (37) 741-750
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Function of BMPs in the apical ectoderm of the developing mouse limb
(2004) Developmental Biology 1 (269) 109-122
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β-catenin-dependent Wnt signaling in apical ectodermal ridge induction andf GF8 expression in normal and limbless mutant chick limbs
(2002) Development Growth and Differentiation 4 (44) 315-325
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Roles of insulin-like growth factor-I (IGF-I) and IGF-I binding protein-2 (IGFBP2) and -5 (IGFBP5) in developing chick limbs
(2001) Growth Hormone and IGF Research 6 (11) 346-363
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A novel human gene encoding an F-box/WD40 containing protein maps in the SHFM3 critical region on 10q24
(1999) Biochemical and Biophysical Research Communications 1 (261) 64-70
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Dlx-5 in limb initiation in the chick embryo
(1999) Developmental Dynamics 1 (216) 10-15
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FGFR2 signaling in normal and limbless chick limb buds
(1999) Developmental Genetics 4 (25) 331-338
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Ectopic expression of Msx-2 in posterior limb bud mesoderm impairs limb morphogenesis while inducing BMP-4 expression, inhibiting cell proliferation, and promoting apoptosis
(1998) Developmental Biology 1 (197) 12-24
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Roles of transforming growth factor-α and epidermal growth factor in chick limb development
(1998) Developmental Biology 1 (202) 43-55
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FGF-stimulated outgrowth and proliferation of limb mesoderm is dependent on syndecan-3
(1997) Developmental Biology 2 (184) 343-350
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Hensen's node provides an endogenous limb-forming signal
(1997) Developmental Biology 2 (188) 216-223
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Ability of FGFs to promote the outgrowth and proliferation of limb mesoderm is dependent on IGF-I activity
(1996) Developmental Dynamics 4 (206) 463-469
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IGF-I and insulin in the acquisition of limb-forming ability by the embryonic lateral plate
(1996) Developmental Biology 1 (177) 291-299
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IGF-I, insulin and FGFs induce outgrowth of the limb buds of amelic mutant chick embryos
(1996) Development 4 (122) 1323-1330
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Studies on insulin-like growth factor-I and insulin in chick limb morphogenesis
(1995) Developmental Dynamics 1 (202) 67-79
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Expression patterns of mRNAs for the gap junction proteins connexin43 and connexin42 suggest their involvement in chick limb morphogenesis and specification of the arterial vasculature
(1994) Developmental Dynamics 2 (199) 156-167
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Limb mesenchymal cells inhibited from undergoing cartilage differentiation by a tumor promoting phorbol ester maintain expression of the homeobox-containing gene Msx1 and fail to exhibit gap junctional communication
(1994) Biochemical and Biophysical Research Communications 1 (205) 429-434
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Wnt-5a and Wnt-7a are expressed in the developing chick limb bud in a manner suggesting roles in pattern formation along the proximodistal and dorsoventral axes
(1993) Mechanisms of Development 3-Feb (43) 175-186
Conference Papers
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Studies on epidermal growth factor receptor signaling in vertebrate limb patterning
(2005) Developmental Dynamics 2 (233) 288-300
| Title or Abstract | Sponsor/Event | Date/Year | Location |
|---|---|---|---|
| Genetic and Cellular Strategies in Cartilage Disease | 2011 Howard Hughes Lecture Series | 2011 | Wesleyan University, Middletown, CT |
| Stem Cells for Profit? | StemConn 2011 | 2011 | Farmington, CT |