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Li J, Li K, Zhang Y, Li X, Wang H. Regulation mechanism of endochondral ossification in Rana zhenhaiensis during metamorphosis based on histomorphology and transcriptome analyses. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2024; 52:101286. [PMID: 38996694 DOI: 10.1016/j.cbd.2024.101286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 06/28/2024] [Accepted: 06/29/2024] [Indexed: 07/14/2024]
Abstract
Endochondral ossification plays a crucial role in the limb development of amphibians. This study explored the ossification sequence in the hindlimb of Rana zhenhaiensis tadpoles and the correlation between thyroid hormones (THs) and endochondral ossification via histomorphology and transcriptional analyses. Our results suggest that ossification of the femur and tibiofibula was initiated during the period of high THs activity (metamorphosis climax). In addition, the results of differentially expressed gene analyses in the hindlimb and tail showed that systemic factors, transcription factors, and locally secreted factors interacted with each other during the metamorphosis climax to regulate the occurrence of endochondral ossification. These results will enrich the morphological data of anurans and provide scientific reference for the evolutionary history of vertebrates.
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Affiliation(s)
- Jiayi Li
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China
| | - Kaiyue Li
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China
| | - Yue Zhang
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China
| | - Xinyi Li
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China
| | - Hongyuan Wang
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China.
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2
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Li X, Li J, Li K, Zhang Z, Wang H. Effects of perchlorate and exogenous T4 exposures on body condition and endochondral ossification of Rana chensinensis tadpoles. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 265:106767. [PMID: 37972501 DOI: 10.1016/j.aquatox.2023.106767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/14/2023] [Accepted: 11/10/2023] [Indexed: 11/19/2023]
Abstract
Perchlorate, as an endocrine-disrupting chemical (EDC), is largely produced and used in the military, fireworks, fertilizers, and other industries and widely exists in water. Although perchlorate is known to destroy the normal function of thyroid hormones (THs) in amphibians and interfere with their growth and development, the impact of TH levels caused by sodium perchlorate (NaClO4) on endochondral ossification and skeletal development is poorly investigated, and the underlying molecular mechanism has not been clarified. The present study aimed to explore the potential effects of NaClO4 and exogenous thyroxine (T4) on the skeletal development of Rana chensinensis tadpoles and elucidate the related molecular mechanisms. Our results showed that histological changes occurred to the femur and tibia-fibula of tadpoles raised in 250 μg/L NaClO4 and 5 μg/L exogenous T4, and the length of their hindlimbs was significantly reduced. In addition, exogenous T4 exposure significantly interfered with the expression of Dio3, TRβ, MMP9, MMP13, and Runx2, inhibiting the endochondral ossification process. Therefore, we provide robust evidence that the changes in TH levels caused by NaClO4 and exogenous T4 will adversely affect the endochondral ossification and skeletal development of R. chensinensis tadpoles.
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Affiliation(s)
- Xinyi Li
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China
| | - Jiayi Li
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China
| | - Kaiyue Li
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China
| | - Zhiqin Zhang
- Basic Experimental Teaching Center, Shaanxi Normal University, Xi'an 710119, China
| | - Hongyuan Wang
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China.
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3
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Niu Z, Xue H, Jiang Z, Chai L, Wang H. Effects of temperature on metamorphosis and endochondral ossification in Rana chensinensis tadpoles. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2023; 45:101057. [PMID: 36657230 DOI: 10.1016/j.cbd.2023.101057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 12/28/2022] [Accepted: 01/08/2023] [Indexed: 01/15/2023]
Abstract
Temperature is one of the important factors affecting the growth, development, and metamorphosis of amphibians. Endochondral ossification during metamorphosis plays a crucial role in amphibian survival and adaptation on land. In this study, we explored the effects of different temperature treatments on the growth, development, and endochondral ossification of Rana chensinensis tadpoles during metamorphosis. The results showed that high temperature exposure may affect the skeletal development of tadpoles during metamorphosis, such as reduction of bone length and ossification of limbs, thyroid gland damage and change of ossification-related genes expression levels,and ultimately affect the movement and survival of tadpoles in the terrestrial environment. These results provide an experimental reference for further research on the effects of temperature on amphibian growth and development and provide an important theoretical basis for the decline of the amphibian population caused by temperature.
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Affiliation(s)
- Ziyi Niu
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China
| | - HaoYu Xue
- School of Philosophy and Government, Shaanxi Normal University, Xi'an 710119, China
| | - Zhaoyang Jiang
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China
| | - Lihong Chai
- School of Water and Environment, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang'an University, Xi'an 710062, China
| | - Hongyuan Wang
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China.
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4
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Kondo Y, Iwamoto R, Takahashi T, Suganuma K, Kato H, Nakamura H, Yukita A. Diversity of cortical bone morphology in anuran amphibians. Dev Growth Differ 2023; 65:16-22. [PMID: 36517455 DOI: 10.1111/dgd.12831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 10/19/2022] [Accepted: 10/26/2022] [Indexed: 12/16/2022]
Abstract
The cortical bones of mammals, birds, and reptiles are composed of a complex of woven bone and lamellar bone (fibrolamellar bone) organized into a variety of different patterns; however, it remains unclear whether amphibians possess similar structures. Importantly, to understand the evolutionary process of limb bones in tetrapods, it is necessary to compare the bone structure of amphibians (aquatic to terrestrial) with that of amniotes (mostly terrestrial). Therefore, this study compared the cortical bones in the long bones of several frog species before and after metamorphosis. Using micro-computed tomography (CT), we found that the cortical bones in the fibrolamellar bone of Xenopus tropicalis (Pipoidea superfamily) and Lithobates catesbeianus (Ranoidea superfamily) froglets are dense, whereas those of Ceratophrys cranwelli (Hyloidea superfamily) are porous. To clarify whether these features are common to their superfamily or sister group, four other frog species were examined. Histochemical analyses revealed porous cortical bones in C. ornata and Lepidobatrachus laevis (belonging to the same family, Ceratophryidae, as C. cranwelli). However, the cortical bones of Dryophytes japonicus (Hylidae, a sister group of Ceratophryidae in the Hyloidea superfamily), Microhyla okinavensis (Microhylidae, independent of the Hyloidea superfamily), and Pleurodeles waltl, a newt as an outgroup of anurans, are dense with no observed cavities. Our findings demonstrate that at least three members of the Ceratophryidae family have porous cortical bones similar to those of reptiles, birds, and mammals, suggesting that the process of fibrolamellar bone formation arose evolutionarily in amphibians and is conserved in the common ancestor of amniotes.
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Affiliation(s)
- Yoshiaki Kondo
- Department of Agriculture, Graduate School of Integrated Science and Technology, Shizuoka University, Shizuoka, Japan
| | - Rina Iwamoto
- Institute for Oral Science, Matsumoto Dental University, Nagano, Japan
| | - Takumi Takahashi
- Graduate School of Institute for Oral Science, Matsumoto Dental University, Nagano, Japan
| | - Kaito Suganuma
- Department of Education (Sciences), Shizuoka University, Shizuoka, Japan
| | - Hideaki Kato
- Department of Education (Sciences), Shizuoka University, Shizuoka, Japan
| | - Hiroaki Nakamura
- Department of Oral Histology, Matsumoto Dental University, Nagano, Japan
| | - Akira Yukita
- Department of Education (Sciences), Shizuoka University, Shizuoka, Japan.,Department of Science, Graduate School of Integrated Science and Technology, Shizuoka University, Shizuoka, Japan
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5
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Whitney MR, Pierce SE. Osteohistology of Greererpeton provides insight into the life history of an early Carboniferous tetrapod. J Anat 2021; 239:1256-1272. [PMID: 34310687 PMCID: PMC8602017 DOI: 10.1111/joa.13520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 11/29/2022] Open
Abstract
The vertebrate transition to land is one of the most consequential, yet poorly understood periods in tetrapod evolution. Despite the importance of the water-land transition in establishing modern ecosystems, we still know very little about the life histories of the earliest tetrapods. Bone histology provides an exceptional opportunity to study the biology of early tetrapods and has the potential to reveal new insights into their life histories. Here, we examine the femoral bone histology from an ontogenetic series of Greererpeton, an early tetrapod from the Middle-Late Mississippian (early Carboniferous) of North America. Thin-sections and micro-CT data show a moderately paced rate of bone deposition with significant cortical thickening through development. An interruption to regular bone deposition, as indicated by a zone of avascular tissue and growth marks, is notable at the same late juvenile stage of development throughout our sample. This suggests that an inherent aspect to the life history of juvenile Greererpeton resulted in a temporary reduction in bone deposition. We review several possible life history correlates for this bony signature including metamorphosis, an extended juvenile phase, environmental stress, and movement (migration/dispersal) between habitats. We argue that given the anatomy of Greererpeton, it is unlikely that events related to polymorphism (metamorphosis, extended juvenile phase) can explain the bony signature observed in our sample. Furthermore, the ubiquity of this signal in our sample indicates a taxon-level rather than a population-level trait, which is expected for an environmental stress. We conclude that movement via dispersal represents a likely correlate, as such events are a common life history strategy of aquatically bound vertebrates.
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Affiliation(s)
- Megan R. Whitney
- Museum of Comparative Zoology and Department of Organismic and Evolutionary BiologyHarvard UniversityCambridgeMAUSA
| | - Stephanie E. Pierce
- Museum of Comparative Zoology and Department of Organismic and Evolutionary BiologyHarvard UniversityCambridgeMAUSA
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6
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Colosio RR, Santos LFJ, Gonçalves AM, Santana CC, Pavarina GC, Pizauro JM. Enzymatic activity of bone markers on Lithobates catesbeianus (Shaw, 1802) growth during the ossification process. BRAZ J BIOL 2021; 84:e251970. [PMID: 34705954 DOI: 10.1590/1519-6984.251970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 07/15/2021] [Indexed: 11/22/2022] Open
Abstract
In order to better understand the ossification processes in anurans our study was carried out on tadpoles and adults of Lithobates catesbeianus. In this sense, we characterized the kinetic properties of alkaline phosphatase with p-nitrophenylphosphatase (pNPP) and pyrophosphate (PPi) and evaluated the activities of tartrate-resistant acid phosphatase and acid phosphatase. The enzyme extracts were obtained from tadpoles and adult femurs, which were divided into epiphysis and diaphysis. After homogenization, the samples were submitted to differential centrifugation to obtain cell membranes and, further, to phospholipase C (PIPLC) treatment, to remove membrane-bound proteins anchored by phosphatidylinositol. The average of specific activity for pNPP hydrolysis (at pH 10.5) by alkaline phosphatase released by phosphatidylinositol-specific phospholipase C (PIPLC) from Bacillus cereus among different bone regions at different animal ages was 1,142.57 U.mg-1, while for PPi hydrolysis (at pH 8.0), it was 1,433.82 U.mg-1. Among the compounds tested for enzymatic activity, the one that influenced the most was EDTA, with approximately 67% of inhibition for pNPPase activity and 77% for PPase activity. In the case of kinetic parameters, the enzyme showed a "Michaelian" behavior for pNPP and PPi hydrolysis. The Km value was around 0.6mM for pNPPase activity and ranged from 0.01 to 0.11mM for PPase activity, indicating that the enzyme has a higher affinity for this substrate. The study of pNPP and PPi hydrolysis by the enzyme revealed that the optimum pH of actuation for pNPP was 10.5, while for PPi, which is considered the true substrate of alkaline phosphatase, was 8.0, close to the physiological value. The results show that regardless of the ossification type that occurs, the same enzyme or isoenzymes act on the different bone regions and different life stages of anurans. The similarity of the results of studies with other vertebrates shows that anurans can be considered excellent animal models for the study of biological calcification.
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Affiliation(s)
- R R Colosio
- Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Tecnologia, Jaboticabal, SP, Brasil.,Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Instituto de Química, Departamento de Bioquímica e Química Orgânica, Araraquara, SP, Brasil
| | - L F J Santos
- Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Tecnologia, Jaboticabal, SP, Brasil.,Faculdade de Tecnologia - FATEC, Ribeirão Preto, SP, Brasil
| | - A M Gonçalves
- Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Instituto de Química, Departamento de Bioquímica e Química Orgânica, Araraquara, SP, Brasil.,Universidade de Araraquara - UNIARA, Departamento de Ciências Biológicas e de Saúde, Araraquara, SP, Brasil
| | - C C Santana
- Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Tecnologia, Jaboticabal, SP, Brasil.,Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Instituto de Química, Departamento de Bioquímica e Química Orgânica, Araraquara, SP, Brasil
| | - G C Pavarina
- Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Tecnologia, Jaboticabal, SP, Brasil
| | - J M Pizauro
- Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Tecnologia, Jaboticabal, SP, Brasil.,Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Instituto de Química, Departamento de Bioquímica e Química Orgânica, Araraquara, SP, Brasil
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7
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Wang W, Yang Y, Chen A, Song X, Chai L. Inhibition of Metamorphosis, Thyroid Gland, and Skeletal Ossification Induced by Hexavalent Chromium in Bufo gargarizans Larvae. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:2474-2483. [PMID: 34003524 DOI: 10.1002/etc.5114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 01/19/2021] [Accepted: 05/07/2021] [Indexed: 06/12/2023]
Abstract
Hexavalent chromium (Cr [VI]) is one of the major detrimental heavy metal pollutants. In the present study, Bufo gargarizans were exposed to 0, 52, 104, 208, and 416 μg/L Cr (VI) from Gosner stage 2 until metamorphosis; and growth, development, and histological characteristics of the thyroid gland and skeletal ossification were examined. The results demonstrated that the survival rate of larvae exposed to Cr (VI) was not different from that measured in animals from the control group. However, high levels of Cr (VI) (104, 208, and 416 μg/L) were associated with significantly delayed growth and development. The suppression of skeletal ossification was observed at high Cr (VI) levels. Besides, histological alterations of the thyroid gland, such as follicular cell hyperplasia, colloid depletion, and peripheral colloid vacuolation, were found in 52 to 416 μg/L Cr (VI) treatments. The results of the present study highlight reductions in growth and development as well as percent metamorphosis and skeletal ossification due to histological alteration of the thyroid gland during exposure to Cr (VI) in B. gargarizans larvae. The present investigation could provide a basis for understanding the detrimental effects of Cr (VI) in amphibian larvae. Environ Toxicol Chem 2021;40:2474-2483. © 2021 SETAC.
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Affiliation(s)
- Wenxiang Wang
- School of Water and Environment, Chang'an University, Xi'an, China
- Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang'an University, Xi'an, China
| | - Yijie Yang
- School of Water and Environment, Chang'an University, Xi'an, China
- Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang'an University, Xi'an, China
| | - Aixia Chen
- School of Water and Environment, Chang'an University, Xi'an, China
- Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang'an University, Xi'an, China
| | - Xiuling Song
- School of Water and Environment, Chang'an University, Xi'an, China
- Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang'an University, Xi'an, China
| | - Lihong Chai
- School of Water and Environment, Chang'an University, Xi'an, China
- Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang'an University, Xi'an, China
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Ren C, Teng Y, Shen Y, Yao Q, Wang H. Altered temperature affect body condition and endochondral ossification in Bufo gargarizans tadpoles. J Therm Biol 2021; 99:103020. [PMID: 34420650 DOI: 10.1016/j.jtherbio.2021.103020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 05/13/2021] [Accepted: 05/30/2021] [Indexed: 11/17/2022]
Abstract
Bufo gargarizans is one kind of economic animals with higher medicinal value in China. In this study, B. gargarizans (Bufo gargarizans) tadpoles were reared at three different water temperature (15, 22 and 29 °C) from Gosner stages 28-46. We investigated the effects of temperature on growth, development, survival, metamorphic duration, size and skeletal ossification at Gosner stage 40, 42, and 46, as well as thyroid tissue reached metamorphic climax (Gs42). Besides, we examined the transcription levels of endochondral ossification-related genes in hind limb at metamorphic climax (Gs42). Our results showed that the growth and development of tadpoles conform to the temperature-size rule (TSR). While warm temperature resulted in the decrease in body size and hind limb length, and shorten larval period, cold temperature led to increase in body size and hind limb length but prolonged larval period. Histological examinations revealed that warm and cold temperatures caused damage to thyroid tissue. Also, warm and cold temperatures inhibited the degree of ossification with the double staining methodology. Additionally, the real-time PCR results suggested that warm and cold temperatures significantly up-regulated Runx2, VEGF and VEGFR mRNA levels, and down-regulated TRβ, MMP9, MMP13 and Runx3 mRNA levels. The up-regulation of Dio2 level and down-regulation of Dio3 level were observed in warm temperature. TRα mRNA level was significantly increased in warm temperature, but decreased in cold temperature. Collectively, these observations demonstrated that warm and cold temperatures affected endochondral ossification in B. gargarizans tadpoles, which might influence their capacity to terrestrial locomotion.
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Affiliation(s)
- Chaolu Ren
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Yiran Teng
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Yujia Shen
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Qiong Yao
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Hongyuan Wang
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China.
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9
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Estefa J, Tafforeau P, Clement AM, Klembara J, Niedźwiedzki G, Berruyer C, Sanchez S. New light shed on the early evolution of limb-bone growth plate and bone marrow. eLife 2021; 10:e51581. [PMID: 33648627 PMCID: PMC7924947 DOI: 10.7554/elife.51581] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 12/21/2020] [Indexed: 12/18/2022] Open
Abstract
The production of blood cells (haematopoiesis) occurs in the limb bones of most tetrapods but is absent in the fin bones of ray-finned fish. When did long bones start producing blood cells? Recent hypotheses suggested that haematopoiesis migrated into long bones prior to the water-to-land transition and protected newly-produced blood cells from harsher environmental conditions. However, little fossil evidence to support these hypotheses has been provided so far. Observations of the humeral microarchitecture of stem-tetrapods, batrachians, and amniotes were performed using classical sectioning and three-dimensional synchrotron virtual histology. They show that Permian tetrapods seem to be among the first to exhibit a centralised marrow organisation, which allows haematopoiesis as in extant amniotes. Not only does our study demonstrate that long-bone haematopoiesis was probably not an exaptation to the water-to-land transition but it sheds light on the early evolution of limb-bone development and the sequence of bone-marrow functional acquisitions.
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Affiliation(s)
- Jordi Estefa
- Department of Organismal Biology, Evolution and Development, Uppsala UniversityUppsalaSweden
| | | | - Alice M Clement
- Flinders University, College of Science and EngineeringAdelaideAustralia
| | - Jozef Klembara
- Comenius University in Bratislava, Faculty of Natural Sciences, Department of EcologyBratislavaSlovakia
| | - Grzegorz Niedźwiedzki
- Department of Organismal Biology, Evolution and Development, Uppsala UniversityUppsalaSweden
| | | | - Sophie Sanchez
- Department of Organismal Biology, Evolution and Development, Uppsala UniversityUppsalaSweden
- European Synchrotron Radiation FacilityGrenobleFrance
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10
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Liu R, Zhang Y, Gao J, Li X. Effects of octylphenol exposure on the lipid metabolism and microbiome of the intestinal tract of Rana chensinensis tadpole by RNAseq and 16s amplicon sequencing. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 197:110650. [PMID: 32315788 DOI: 10.1016/j.ecoenv.2020.110650] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 03/20/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
Octylphenol (OP) is a widely distributed endocrine disrupting chemical (EDC), and can be commonly found in various and diverse environmental media. Previous studies have reported that OP exposure could cause many adverse effects on aquatic animals. However, knowledge concerning the impact of OP on lipid metabolism in amphibians was still limited. In our study, Rana chensinensis tadpoles were exposed to different OP concentrations (0, 10-8, 10-7 and 10-6 mol/L) from the Gosner stage (Gs) 25-38. The RNA-seq analysis of tadpole intestines was explored by RNA-seq, and six differentially expressed genes (DEGs) related to the fat digestion and absorption were validated by RT-qPCR. Moreover, we used 16s amplicon sequencing to evaluate effects of OP on intestinal microbiome in tadpoles, further determining the variations of lipid metabolism. Our results revealed that OP exposure influenced gene expression levels related to fat digestion and absorption and led to alteration of structure and composition of intestinal microbiome. At the phylum level, the Firmicutes/Bacteroidetes ratio was gradually decreased in OP exposure groups, which disrupted lipid metabolism. According to the results of intestinal microbial functional prediction, OP exposure interfered with metabolic function and increased risk of disease. These data provide us with powerful resources to assess the effects of OP on lipid metabolism by integrating RNAseq and 16s amplicon sequencing analysis of intestinal tract and intestinal microbiome.
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Affiliation(s)
- Rong Liu
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Yuhui Zhang
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Jinshu Gao
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Xinyi Li
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China.
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11
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Zheng R, Chen X, Ren C, Teng Y, Shen Y, Wu M, Wang H, Huang M. Comparison of the characteristics of intestinal microbiota response in Bufo gargarizans tadpoles: Exposure to the different environmental chemicals (Cu, Cr, Cd and NO 3-N). CHEMOSPHERE 2020; 247:125925. [PMID: 32069717 DOI: 10.1016/j.chemosphere.2020.125925] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/12/2020] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
Environmental pollutants could change the intestinal microbiota communities, while data concerning the dynamics of the intestinal microbiota in response to different environmental chemicals in amphibian are lacking. We compared the effects of Cu, Cd, Cr and NO3-N on intestinal microbiota of B. gargarizans tadpoles by using high-throughput 16S rRNA sequencing technology. Our results revealed that responses of intestinal microbiota to three metals and NO3-N showed different characteristics. At the phylum level, the most 100 OTUs were predominantly colonized by Proteobacteria, and meanwhile, expansion of Proteobacteria was observed in Cu 64 μg/L, Cd (100 μg/L and 200 μg/L) and NO3-N100 mg/L treatment groups. In addition, the abundance of Bacteroidetes significantly increased in the gut administrate with Cu, Cd, Cr, NO3-N 20 mg/L exposures, while declined abundance of Fusobacteria was observed in Cu64 μg/L Cd100 μg/L Cd200μg/L-exposed groups. At the genus level, several genera exhibited increased prevalence of abundance such as Shewanella, Azospira and Flavobacterium. The functional prediction revealed that exposures of three metals and NO3-N increase the risks of metabolic disorders and diseases. Our research could be an important step toward an assessment of the ecological risks of different chemicals to aquatic organisms using intestinal microbiota.
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Affiliation(s)
- Rui Zheng
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Xiaoyan Chen
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Chaolu Ren
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Yiran Teng
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Yujia Shen
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Minyao Wu
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China
| | - Hongyuan Wang
- College of Life Science, Shaanxi Normal University, Xi'an, 710119, China.
| | - MinYi Huang
- College of Agriculture and Biotechnology, Hunan University of Humanities, Science and Technology, Loudi, 417000, Hunan, China.
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Sun P, He L, Jia K, Yue Z, Li S, Jin Y, Li Z, Siwko S, Xue F, Su J, Liu M, Luo J. Regulation of body length and bone mass by Gpr126/Adgrg6. SCIENCE ADVANCES 2020; 6:eaaz0368. [PMID: 32219165 PMCID: PMC7083604 DOI: 10.1126/sciadv.aaz0368] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 12/26/2019] [Indexed: 05/24/2023]
Abstract
Adhesion G protein-coupled receptor G6 (Adgrg6; also named GPR126) single-nucleotide polymorphisms are associated with human height in multiple populations. However, whether and how GPR126 regulates body height is unknown. In this study, we found that mouse body length was specifically decreased in Osx-Cre;Gpr126fl/fl mice. Deletion of Gpr126 in osteoblasts resulted in a remarkable delay in osteoblast differentiation and mineralization during embryonic bone formation. Postnatal bone formation, bone mass, and bone strength were also significantly affected in Gpr126 osteoblast deletion mice because of defects in osteoblast proliferation, differentiation, and ossification. Furthermore, type IV collagen functioned as an activating ligand of Gpr126 to regulate osteoblast differentiation and function by stimulating cAMP signaling. Moreover,the cAMP activator PTH(1-34), could partially restore the inhibition of osteoblast differentiation and the body length phenotype induced by Gpr126 deletion.Together, our results demonstrated that COLIV-Gpr126 regulated body length and bone mass through cAMP-CREB signaling pathway.
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Affiliation(s)
- Peng Sun
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, P.R. China
- The Key Laboratory of Adolescent Health Assessment and Exercise Intervention of the Ministry of Education, East China Normal University, Shanghai 200241, P.R. China
| | - Liang He
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, P.R. China
| | - Kunhang Jia
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, P.R. China
| | - Zhiying Yue
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, P.R. China
| | - Shichang Li
- The Key Laboratory of Adolescent Health Assessment and Exercise Intervention of the Ministry of Education, East China Normal University, Shanghai 200241, P.R. China
| | - Yunyun Jin
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, P.R. China
| | - Zhenxi Li
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, P.R. China
| | - Stefan Siwko
- Department of Molecular and Cellular Medicine, Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, TX 77030, USA
| | - Feng Xue
- Shanghai Fengxian District Central Hospital and East China Normal University Joint Center for Translational Medicine, Shanghai Fengxian District Central Hospital, Shanghai 201400, P.R. China
| | - Jiacan Su
- Department of Orthopaedics Trauma, Changhai Hospital, Second Military Medical University, Shanghai, P.R. China
| | - Mingyao Liu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, P.R. China
| | - Jian Luo
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, P.R. China
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13
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Differential Gene Expression in Articular Cartilage and Subchondral Bone of Neonatal and Adult Horses. Genes (Basel) 2019; 10:genes10100745. [PMID: 31557843 PMCID: PMC6826356 DOI: 10.3390/genes10100745] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/11/2019] [Accepted: 09/21/2019] [Indexed: 12/26/2022] Open
Abstract
Skeletogenesis is complex and incompletely understood. Derangement of this process likely underlies developmental skeletal pathologies. Examination of tissue-specific gene expression may help elucidate novel skeletal developmental pathways that could contribute to disease risk. Our aim was to identify and functionally annotate differentially expressed genes in equine neonatal and adult articular cartilage (AC) and subchondral bone (SCB). RNA was sequenced from healthy AC and SCB from the fetlock, hock, and stifle joints of 6 foals (≤4 weeks of age) and six adults (8–12 years of age). There was distinct clustering by age and tissue type. After differential expression analysis, functional annotation and pathway analysis were performed using PANTHER and Reactome. Approximately 1115 and 3574 genes were differentially expressed between age groups in AC and SCB, respectively, falling within dozens of overrepresented gene ontology terms and enriched pathways reflecting a state of growth, high metabolic activity, and tissue turnover in the foals. Enriched pathways were dominated by those related to extracellular matrix organization and turnover, and cell cycle and signal transduction. Additionally, we identified enriched pathways related to neural development and neurotransmission in AC and innate immunity in SCB. These represent novel potential mechanisms for disease that can be explored in future work.
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