Project description:we used proteomic technology to disclose the difference of antler regeneration between red deer and sika deer. Through functional analysis, we obtained differentially expressed proteins and the pathway involved in antler regeneration between two groups
Project description:To elucidate the complex physiological process of the growth, development and immunity response of Sika Deer, this study evaluated the changes of miRNA profiles in the four developmental stages (juvenile, adolescence, adult and aged) of ten tissue (adrenal, antler, brain, heart, kidney, lung, liver, skeletal muscle, spleen and testes). The results showed that a total of 306 known miRNAs and 143 novel miRNAs were obtained. Many miRNAs displayed organ-specificity and age-specificity. The largest number of miRNAs were enriched in the brain, some of which were shared only between the brain and adrenal. These miRNAs were involved in maintaining specific functions within the brain and adrenal. Additionally, the adolescence-adult transition of Sika Deer was a crucial stage in its life cycle. In conclusion, our study provided abundant data support for the current research Sika Deer. It also contributes to understand the role of miRNAs play in regulating the growth, development and immunity response of Sika Deer.
Project description:Studies of the miRNA expression profiles associated with the postnatal late growth, development and aging of skeletal muscle are lacking in sika deer. To understand the molecular mechanisms of the growth and development of sika deer skeletal muscle, we used de novo RNA-seq analyses to determine the differential expression of miRNAs from skeletal muscle tissues at 1, 3, 5, and 10-year-old in sika deer. A total of 171 known miRNAs and 60 novel miRNAs were identified based on four small RNA libraries. 11 miRNAs were differentially expressed between adolescence and juvenile sika deer, 4 miRNAs were differentially expressed between adult and adolescence sika deer, and 1 miRNAs were differentially expressed between aged and adult sika deer. GO and KEGG analyses showed that miRNA were mainly related to energy and substance metabolism, processes that are closely associate with growth, development and aging of skeletal muscle. We also constructed mRNA-mRNA and miRNA-mRNA interaction networks related to growth, development and aging of skeletal muscle. The results showed that miR-133a, miR-133c, miR-192, miR-151-3p etc. may play important roles in muscle growth and development, and miR-17-5p, miR-378b, miR-199a-5p, miR-7 etc. may have key roles in muscle aging. In this study, we determined the dynamic miRNA in muscle tissue for the first time in sika deer. The age-dependent miRNAs identified will offer insights into the molecular mechanism underlying muscle development, growth and maintenance and also provide valuable information for sika deer genetic breeding.
Project description:Studies of the gene expression profiles associated with the postnatal late growth, development and aging of skeletal muscle are lacking in sika deer. To understand the molecular mechanisms of the growth and development of sika deer skeletal muscle, we used de novo RNA-seq analyses to determine the differential expression of unigenes from skeletal muscle tissues at 1, 3, 5, and 10-year-old in sika deer. A total of 51716 unigenes were identified based on four mRNA libraries. 2044 unigenes were differentially expressed between adolescence and juvenile sika deer, 1946 unigenes were differentially expressed between adult and adolescence sika deer, and 2209 unigenes were differentially expressed between aged and adult sika deer. GO and KEGG analyses showed that DE unigenes were mainly related to energy and substance metabolism, processes that are closely associate with growth, development and aging of skeletal muscle. We also constructed mRNA-mRNA interaction networks related to growth, development and aging of skeletal muscle. The results showed that Myh1, Myh2, Myh7, ACTN3 etc. may play important roles in muscle growth and development, and WWP1, DEK, UCP3, FUS etc. may have key roles in muscle aging. In this study, we determined the dynamic unigenes transcriptome in muscle tissue for the first time in sika deer. The age-dependent unigenes identified will offer insights into the molecular mechanism underlying muscle development, growth and maintenance and also provide valuable information for sika deer genetic breeding.
Project description:As the only regenerative organ of mammals, antler could grow rapidly without carcinogenesis. To understand the molecular mechanisms of the growth of sika deer antler, we used de novo RNA-seq analyses to determine the differential expression of unigenes and miRNAs from antler at 15, 60, 90, and 110-day. A total of 55004 unigenes, 208 known miRNAs and 38 novel miRNAs were identified. 10182 unigenes and 35 miRNAs were differentially expressed between 60-day and 15-day antler, 13258 unigenes and 53 miRNAs were differentially expressed between 90-day and 60-day antler, and 10740 unigenes and 27 miRNAs were differentially expressed between 110-day and 90-day antler. GO and KEGG analyses showed that DE unigenes and miRNA were mainly related to chondrogenesis, osteogenesis and inhibition of oncogenesis, that were closely associate with antler growth. We also constructed mRNA-mRNA and miRNA-mRNA interaction networks related to chondrogenesis, osteogenesis and inhibition of oncogenesis of antler. The results showed that mRNA (COL2A1, SOX9, WWP2, FGFR1, SPARC, LOX etc.) and miRNAs (miR-145, miR-199a-3p, miR-140, miR-199a-5p etc.) may play important roles in chondrogenesis and osteogenesis of antler, and mRNA (TP53, Tpm3 and ATP1A1 etc.) and miRNAs (miR-106a, miR-145, miR-1260b and miR-2898 etc.) may have key roles in inhibiting the carcinogenesis of antlers. In this study, we identified miRNAs and unigenes related to chondrogenesis, osteogenesis and inhibition of oncogenesis of antler. This will provide a reference for in-depth analysis of the molecular mechanism of antler growth without carcinogenesis, and also provide valuable information for cartilage- and bone-related disease treatment, cancer treatment.
Project description:As the only regenerative organ of mammals, antler could grow rapidly without carcinogenesis. To understand the molecular mechanisms of the growth of sika deer antler, we used de novo RNA-seq analyses to determine the differential expression of unigenes and miRNAs from antler at 15, 60, 90, and 110-day. A total of 55004 unigenes, 208 known miRNAs and 38 novel miRNAs were identified. 10182 unigenes and 35 miRNAs were differentially expressed between 60-day and 15-day antler, 13258 unigenes and 53 miRNAs were differentially expressed between 90-day and 60-day antler, and 10740 unigenes and 27 miRNAs were differentially expressed between 110-day and 90-day antler. GO and KEGG analyses showed that DE unigenes and miRNA were mainly related to chondrogenesis, osteogenesis and inhibition of oncogenesis, that were closely associate with antler growth. We also constructed mRNA-mRNA and miRNA-mRNA interaction networks related to chondrogenesis, osteogenesis and inhibition of oncogenesis of antler. The results showed that mRNA (COL2A1, SOX9, WWP2, FGFR1, SPARC, LOX etc.) and miRNAs (miR-145, miR-199a-3p, miR-140, miR-199a-5p etc.) may play important roles in chondrogenesis and osteogenesis of antler, and mRNA (TP53, Tpm3 and ATP1A1 etc.) and miRNAs (miR-106a, miR-145, miR-1260b and miR-2898 etc.) may have key roles in inhibiting the carcinogenesis of antlers. In this study, we identified miRNAs and unigenes related to chondrogenesis, osteogenesis and inhibition of oncogenesis of antler. This will provide a reference for in-depth analysis of the molecular mechanism of antler growth without carcinogenesis, and also provide valuable information for cartilage- and bone-related disease treatment, cancer treatment.
2020-12-17 | GSE163383 | GEO
Project description:RNA-seq of Sika deer antler at different stages
Project description:Deer antlers are amazing natural appendages that grow faster than any other known mammalian bone. Antler growth occurs at the tip and is initially cartilage, which is later replaced by bone tissue. However, little is known regarding the precise role of cooperation between cell lineages and functional genes in regulating antler growth, and molecular mechanisms responsible for rapid growth remain elusive. In this study, we use an RNA-Seq approach to identify miRNA expression patterns during antler growth.
Project description:We have previously described the reindeer antler velvet as a highly unique mammalian model of adult skin regeneration as wounds on backskin form a raised, contractile scar devoid of appendages or pigment, whereas identical wounds in antler velvet exhibit scar-less regeneration. To ask whether regenerative capacity is inherent to cells within the velvet (and not due to factors derived from the antler environment), we transplanted full thickness velvet skin grafts onto dorsal backskin. This scRNA-Seq sample profiles cells within the ectopic velvet graft to assess their molecular resemblance to regenerative velvet or non-regenerative dorsal backskin.
Project description:Rib bone growth in red deer stags - Abstract: In 'The Bone and Joint Decade' interest is focused on genetic factors causing bone disorders. Osteoporosis, attacking 10% of the population worldwide, is the most common metabolic bone disease, which is mimiced by several ovarectomised or genetically modified 'cascadeur' animal species, but none of them is able to remedy its pathologically porous bone tissue. Regeneration in skeletal elements is the curiosity of our newly investigated osteoporosis animal model, red deer (Cervus elaphus). The cyclic physiological osteoporosis in red deer stag is a consequence of the annual antler cycle. This phenomenon raises the possibility to explore new genes involved in regulating bone mineral density (BMD) and recovery of bone resorption on the basis of comparative genomics between deer and human. Here we compared the gene expression activities of osteoporotic and regenerating flying rib bone samples versus late autumn dwell control in red deer by heterologous microarray hybridization. Identified genes were tested on human femoral bone tissue from postmenopausal osteoporotic and non-osteoporotic patients. Expression data were evaluated by Principal Components Analysis and Discriminant Analysis. Keywords: Gene Expression experiment Approximately 2-3 g flying rib bone pieces in the entire cross section of bony rib were surgically removed from 3 anaesthetized [SBH-Ketamine (2.5 mg/kg live weight) combined with Xylazine (0.2 mg/kg live weight) i.m. injection] 6, 7 and 8 year old Cervus elaphus stags. (Cast antler pairs weighed 7-8 kg for each animal.) Removed rib pieces were extensively washed in PBS for eliminating blood and marrow contamination, than immediately frozen in liquid nitrogen. The time of tissue collections were (i) within the period of the active mineralization of antler, at the beginning of June when skeletal osteoporosis takes place, (ii) in the fitness improvement period with velvet shedding in late July, that is the 'regenerating time' and (iii) in the period of late autumn dwell at the end of November when in the skeleton the mineral mobilization and deposition are dynamically equilibrated (BMD is in steady state). Each comparison performed on Platforms GPL4052 and GPL5352.