Hamster Development

Introduction

Adult hamster

These rodents belonging to the subfamily Cricetinae. Sexual maturity occurs at about 4 to 6 weeks and hamsters are seasonal breeders (April to October in the northern hemisphere) with several litters of 1 to 13 pups after a gestation period of between 16 to 23 days. The Chinese hamster (Cricetulus griseus) ovary (CHO) cells have been used widely in research as a host for protein production.

This animal model also demonstrates neural tube defects when exposed prenatally to hyperthermia.

Links: Hyperthermia | Neural | Category:Hamster

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Some Recent Findings

Perfluorooctanoic acid (PFOA) acts as a tumor promoter on Syrian hamster embryo (SHE) cells "Perfluorooctane sulfonate (PFOS) (C(8)F(17)SO(3)) and perfluorooctanoic acid (PFOA) (C(8)HF(15)O(2)) are synthetic chemicals widely used in industrial applications for their hydrophobic and oleophobic properties. They are persistent, bioaccumulative, and toxic to mammalian species. Their widespread distribution on earth and contamination of human serum raised concerns about long-term side effects. They are suspected to be carcinogenic through a nongenotoxic mode of action, a mechanism supported by recent findings that PFOS induced cell transformation but no genotoxicity in Syrian hamster embryo (SHE) cells. ...The whole results showed that PFOA acts as a tumor promoter and a nongenotoxic carcinogen. Cell transformation in initiated cells was observed at concentrations equivalent to the ones found in human serum of nonoccupationally and occupationally exposed populations. An involvement of PFOA in increased incidence of cancer recorded in occupationally exposed population cannot be ruled out." Hyperthermia induces upregulation of Connexin43 in the golden hamster neural tube "During early embryonic development, maternal exposure to hyperthermia induces neural tube defects (NTDs). Connexins are essential for the formation of gap junctions and Connexin43 (Cx43) is crucially involved in neural tube development. ...Our data provide the first evidence that hyperthermia induces upregulation of Cx43 in the golden hamster neural tube. NTDs caused by hyperthermia may be intimately related with the overexpression of Cx43." Biosynthesis of hamster zona pellucida is restricted to the oocyte "We recently described the expression of four ZP proteins in the hamster ovary. By means of the complete set of the hamster ZP cDNAs, we undertook the study of the origin and expression pattern of the four ZP genes. In the present work, the expression of ZP1, ZP2, ZP3 and ZP4 is carefully analyzed by in situ hybridization (ISH) in hamster ovaries. Our data suggest that the four hamster ZP genes are expressed in a coordinate and oocyte-specific manner during folliculogenesis. Furthermore, this expression is maximal during the first stages of the oocyte development and declines in oocytes from later development stages, particularly within large antral follicles."

Taxon

Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Sciurognathi; Muroidea; Cricetidae; Cricetinae;

• Chinese Hamster
• Dwarf Hamster
• Dwarf Campbells Russian Hamster
• European Hamster
• Golden Hamster
• Mouse-Like Hamster
• Pearl Winter White Dwarf Russian Hamster
• Roborovski Hamster
• Standard Hamster
• Syrian Hamster

• Mitochondrial Genome - Mesocricetus auratus (golden hamster) 16,264 nt

Hamster Development

• Estrus (for mating) is usually about 12 hours.
• Gestation period varies by type ranging between 18 to 22 days.
  • Syrian Hamster 16 days, Dwarf Winter White Russian Hamster, Campbell’s and Chinese Hamster 18 to 21 days, Roborovski Hamster 23 to 30 days.
• litter size is usually between 4 to 6.

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  Hamster oocyte zona pellucida

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  Hamster oocyte and spermatozoa

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  Hamster fused oocyte and spermatozoa

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  Hamster uterus GDF8 expression

References

Reviews

Jeff Reese, Hehai Wang, Tianbing Ding, B C Paria The hamster as a model for embryo implantation: insights into a multifaceted process. Semin. Cell Dev. Biol.: 2008, 19(2);194-203 PMID:18178492

Articles

Tianbing Ding, Haengseok Song, Xiaohong Wang, Atanu Khatua, Bibhash C Paria Leukemia inhibitory factor ligand-receptor signaling is important for uterine receptivity and implantation in golden hamsters (Mesocricetus auratus). Reproduction: 2008, 135(1);41-53 PMID:18159082

G V Sireesha, R W Mason, M Hassanein, S Tonack, A Navarrete Santos, B Fischer, P B Seshagiri Role of cathepsins in blastocyst hatching in the golden hamster. Mol. Hum. Reprod.: 2008, 14(6);337-46 PMID:18463158

B Wlodarczyk, B Biernacki, M Minta, J Zmudzki Postimplantation whole embryo culture assay for hamsters: an alternative to rat and mouse. ScientificWorldJournal: 2001, 1();227-34 PMID:12806092

A Mishra, P B Seshagiri Evidence for the involvement of a species-specific embryonic protease in zona escape of hamster blastocysts. Mol. Hum. Reprod.: 2000, 6(11);1005-12 PMID:11044463

M T Ebron-McCoy, P E Beyer, L A Oglesby, R J Kavlock In vitro culture of postimplantation hamster embryos. Reprod. Toxicol.: 1988, 2(1);31-6 PMID:2980399

Search Pubmed

Search Pubmed: hamster embryo development | hamster development

External Links

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Dr Mark Hill 2013, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G