- abnormal retina vasculature morphology / IMPC
- abnormal optic disk morphology / IMPC
- increased vertical activity / IMPC
- abnormal placement of pupils / IMPC
- decreased circulating HDL cholesterol level / IMPC
- abnormal lens morphology / IMPC
- increased circulating free fatty acids level / IMPC
- abnormal retina blood vessel morphology / IMPC
- decreased circulating glucose level / IMPC
- hyperactivity / IMPC
- increased circulating triglyceride level / IMPC
- irregularly shaped pupil / IMPC
- abnormal iris pigmentation / IMPC
- abnormal retina morphology / IMPC
- increased fasting circulating glucose level / IMPC
B6NCrl.Cg-Col18a1tm1Pih/Oulu
| Status | Available to order |
| EMMA ID | EM:15976 |
| Citation information | RRID:IMSR_EM:15976 Research Resource Identifiers (RRID) are persistent unique ID numbers assigned to help researchers cite key resources (e.g. antibodies, model organisms and software projects) in the biomedical literature to improve transparency and reproducibility in research. See https://www.rrids.org/ for more information. |
| International strain name | B6NCrl.Cg-Col18a1tm1Pih/Oulu |
| Alternative name | Col18a1tm1Pih; Col18a1-P1; MGI:4948124 |
| Strain type | Targeted Mutant Strains : Other targeted |
| Allele/Transgene symbol | Col18a1tm1Pih |
| Gene/Transgene symbol | Col18a1 |
Information from provider
| Provider | Taina Pihlajaniemi |
| Provider affiliation | Faculty of Biochemistry and Molecular Medicine, University of Oulu |
| Genetic information | Exon 1 of Col18a1 was deleted to form a promoter 1 (P1)-specific knockout in which the short collagen XVIII isoform is inactivated while the medium and long collagen XVIII isoforms are expressed. |
| Phenotypic information | Homozygous:All organs of the homozygous Col18a1-P1/P1 mutant mice in the C57BL/6NCrl background have not been studied. Renal/urinary system: Kidney development was studied in embryos and newborn mice. Reduced ureter tree branching and renal hypoplasia. Widening of the proximal and distal tubular basement membranes in E16.5 embryos and in P10 pups, loose and interrupted basement membrane ultrastructure. Decreased number of nephron progenitor cells. Mild podocyte foot process defects. Lipid and glucose metabolism: Mild changes in lipid and glucose metabolism, e.g. mild hepatic steatosis after long-term high fat diet.Heterozygous:Heterozygous mice are normal. |
| Breeding history | Gene targeting was performed in 129/Sv embryonic stem cells and the resulting mice were backcrossed at least 10 times to C57BL/6JOlsaHsd strain, and further 9 times to C57BL/6NCrl strain. |
| References |
|
| Homozygous fertile | yes |
| Homozygous viable | yes |
| Homozygous matings required | no |
| Immunocompromised | no |
Information from EMMA
| Archiving centre | University of Oulu, Oulu, Finland |
Disease and phenotype information
Orphanet associated rare diseases, based on orthologous gene matching
- Knobloch syndrome / Orphanet_1571
IMPC phenotypes (gene matching)
MGI phenotypes (gene matching)
- abnormal cranium morphology / MGI
- enlarged cranium / MGI
- abnormal choroid plexus morphology / MGI
- dilated lateral ventricles / MGI
- dilated third ventricle / MGI
- dilated fourth ventricle / MGI
- persistence of hyaloid vascular system / MGI
- abnormal pupil morphology / MGI
- abnormal iris morphology / MGI
- abnormal retina morphology / MGI
- increased circulating triglyceride level / MGI
- abnormal circulating enzyme level / MGI
- hydroencephaly / MGI
- intracranial hemorrhage / MGI
- neoplasm / MGI
- abnormal brain morphology / MGI
- abnormal tricuspid valve morphology / MGI
- abnormal vitreous body morphology / MGI
- abnormal retinal vasculature morphology / MGI
- increased circulating VLDL triglyceride level / MGI
- abnormal basement membrane morphology / MGI
- abnormal proximal convoluted tubule morphology / MGI
- abnormal ciliary body morphology / MGI
- abnormal iris pigment epithelium / MGI
- abnormal enzyme/coenzyme level / MGI
- abnormal renal glomerulus morphology / MGI
- renal/urinary system phenotype / MGI
- abnormal iris stromal pigmentation / MGI
- increased circulating creatinine level / MGI
- abnormal corneal epithelium morphology / MGI
- impaired lipolysis / MGI
- podocyte foot process effacement / MGI
- abnormal brain ependyma motile cilium morphology / MGI
- abnormal mesangial matrix morphology / MGI
- expanded mesangial matrix / MGI
- enlarged brain ventricles / MGI
Literature references
- Lack of collagen XVIII long isoforms affects kidney podocytes, whereas the short form is needed in the proximal tubular basement membrane.;Kinnunen Aino I, Sormunen Raija, Elamaa Harri, Seppinen Lotta, Miller R Tyler, Ninomiya Yoshifumi, Janmey Paul A, Pihlajaniemi Taina, ;2011;The Journal of biological chemistry;286;7755-7764; 21193414
- Lack of collagen XVIII leads to lipodystrophy and perturbs hepatic glucose and lipid homeostasis.;Petäistö Tiina, Vicente David, Mäkelä Kari A, Finnilä Mikko A, Miinalainen Ilkka, Koivunen Jarkko, Izzi Valerio, Aikio Mari, Karppinen Sanna-Maria, Devarajan Raman, Thevenot Jerome, Herzig Karl-Heinz, Heljasvaara Ritva, Pihlajaniemi Taina, ;2020;The Journal of physiology;598;3373-3393; 32449518
- Temporally and spatially regulated collagen XVIII isoforms are involved in ureteric tree development via the TSP1-like domain.;Rinta-Jaskari Mia M, Naillat Florence, Ruotsalainen Heli J, Koivunen Jarkko T, Sasaki Takako, Pietilä Ilkka, Elamaa Harri P, Kaur Inderjeet, Manninen Aki, Vainio Seppo J, Pihlajaniemi Taina A, ;2023;Matrix biology : journal of the International Society for Matrix Biology;115;139-159; 36623578
- Collagen XVIII regulates extracellular matrix integrity in the developing nephrons and impacts nephron progenitor cell behavior.;Rinta-Jaskari Mia M, Naillat Florence, Ruotsalainen Heli J, Ronkainen Veli-Pekka, Heljasvaara Ritva, Akram Saad U, Izzi Valerio, Miinalainen Ilkka, Vainio Seppo J, Pihlajaniemi Taina A, ;2024;Matrix biology : journal of the International Society for Matrix Biology;131;30-45; 38788809
- Specific collagen XVIII isoforms promote adipose tissue accrual via mechanisms determining adipocyte number and affect fat deposition.;Aikio Mari, Elamaa Harri, Vicente David, Izzi Valerio, Kaur Inderjeet, Seppinen Lotta, Speedy Helen E, Kaminska Dorota, Kuusisto Sanna, Sormunen Raija, Heljasvaara Ritva, Jones Emma L, Muilu Mikko, Jauhiainen Matti, Pihlajamäki Jussi, Savolainen Markku J, Shoulders Carol C, Pihlajaniemi Taina, ;2014;Proceedings of the National Academy of Sciences of the United States of America;111;E3043-52; 25024173
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