1. Sex-dependent Regeneration Patterns in Mouse Submandibular Glands
- Author
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Olga J. Baker, Harim T Dos Santos, Spencer M. Dean, Callie T. Brown, Yue Zhang, Yuqing Qiu, Stelios T. Andreadis, Pedro Lei, and Kihoon Nam
- Subjects
Male ,medicine.medical_specialty ,Saliva ,Histology ,Submandibular Gland ,Macrophage polarization ,Neovascularization, Physiologic ,Fibrin ,03 medical and health sciences ,Mice ,0302 clinical medicine ,stomatognathic system ,In vivo ,Internal medicine ,medicine ,Animals ,Regeneration ,030304 developmental biology ,0303 health sciences ,Sex Characteristics ,Wound Healing ,Salivary gland ,biology ,Regeneration (biology) ,Macrophages ,Hydrogels ,Articles ,Submandibular gland ,medicine.anatomical_structure ,Endocrinology ,biology.protein ,Female ,Collagen ,Anatomy ,Wound healing ,030217 neurology & neurosurgery - Abstract
Our previous studies indicated that YIGSR-A99 peptides chemically conjugated to fibrin hydrogel (FH) and applied to wounded submandibular gland (SMG) in vivo, formed new organized salivary tissue, whereas wounded SMG treated with FH alone or in the absence of a scaffold showed disorganized collagen formation and poor tissue healing. While these studies indicated that damaged SMG grow and differentiate when treated with FH containing L1 peptide, they were performed only in female mice. However, there is a well-established sexual dimorphism present in mouse SMG (e.g., males develop well-differentiated granular convoluted tubules, but these structures are poorly developed in females) and little is known about how these sex differences influence wound healing events. Therefore, the goal of this study was to conduct comparative analyses of regeneration patterns in male and female mice using L1p-FH in a wounded SMG mouse model. Particularly, we focused on sex-dependent wound healing events such as macrophage polarization, vascularization, tissue organization, and collagen deposition, and how these events affect salivary gland functioning
- Published
- 2020