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Jin M, Lu J, Fei X, Lu Z, Quan K, Liu Y, Chu M, Di R, Wei C, Wang H. Selection Signatures Analysis Reveals Genes Associated with High-Altitude Adaptation in Tibetan Goats from Nagqu, Tibet. Animals (Basel) 2020; 10:ani10091599. [PMID: 32911823 PMCID: PMC7552128 DOI: 10.3390/ani10091599] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/28/2020] [Accepted: 09/04/2020] [Indexed: 12/18/2022] Open
Abstract
Simple Summary In the process of domestication, goats have undergone long-term artificial and natural selection, leading to differences among goat breeds and leaving different selection traces on the genome. However, the genetic components underlying high-altitude adaptation remain largely unknown. Here, we genotyped four goat breeds using the Illumina Caprine 50K single nucleotide polymorphism (SNP) Chip. One highland breed (Tibetan goat) compared with three lowland breeds (Huanghuai goat, Taihang goat and Xinjiang goat) to identify the molecular basis of high-altitude adaptation. So, we investigated selection signatures using the di statistic of four goat breeds and some genes in Tibetan goats related to high-altitude adaptation were identified. In addition, q-PCR validated the gene expression level in Tibetan goats and Huanghuai goats. This information may be valuable for the study of the genetic uniqueness of Tibetan goats and increased understanding of the hypoxic adaptation mechanism of Tibetan goats on the plateau. Abstract Tibetan goat is an ancient breed, which inhabits the adverse conditions of the plateaus in China. To investigate the role of selection in shaping its genomes, we genotyped Tibetan goats (Nagqu Prefecture, above 4500 m) and three lowland populations (Xinjiang goats, Taihang goats and Huanghuai goats). The result of PCA, neighbor-joining (N-J) tree and model-based clustering showed that the genetic structure between the Tibetan goat and the three lowland populations has significant difference. As demonstrated by the di statistic, we found that some genes were related to the high-altitude adaptation of Tibetan goats. Functional analysis revealed that these genes were enriched in the VEGF (vascular endothelial growth factor) signaling pathway and melanoma, suggesting that nine genes (FGF2, EGFR, AKT1, PTEN, MITF, ENPEP, SIRT6, KDR, and CDC42) might have important roles in the high-altitude adaptation of Nagqu Tibetan goats. We also found that the LEPR gene was under the strongest selection (di value = 16.70), and it could induce upregulation of the hypoxic ventilatory response. In addition, five genes (LEPR, LDB1, EGFR, NOX4 and FGF2) with high di values were analyzed using q-PCR. Among them, we found that LEPR, LDB1 and FGF2 exhibited higher expression in the lungs of the Tibetan goats; LEPR, EGFR and LDB1 exhibited higher expression in the hearts of the Huanghuai goat. Our results suggest that LEPR, LDB1, EGFR and FGF2 genes may be related to the high-altitude adaptation of the goats. These findings improve our understanding of the selection of the high-altitude adaptability of the Nagqu Tibetan goats and provide new theoretical knowledge for the conservation and utilization of germplasm resources.
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Affiliation(s)
- Meilin Jin
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (M.J.); (X.F.); (M.C.); (R.D.)
| | - Jian Lu
- National Animal Husbandry Service, Beijing 100193, China;
| | - Xiaojuan Fei
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (M.J.); (X.F.); (M.C.); (R.D.)
| | - Zengkui Lu
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China;
| | - Kai Quan
- College of Animal Science and Technology, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, China;
| | - Yongbin Liu
- Inner Mongolia Academy of Animal Husbandry Science, Hohhot 010031, China;
| | - Mingxing Chu
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (M.J.); (X.F.); (M.C.); (R.D.)
| | - Ran Di
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (M.J.); (X.F.); (M.C.); (R.D.)
| | - Caihong Wei
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (M.J.); (X.F.); (M.C.); (R.D.)
- Correspondence: (C.W.); (H.W.)
| | - Huihua Wang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (M.J.); (X.F.); (M.C.); (R.D.)
- Correspondence: (C.W.); (H.W.)
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Valta MP, Hentunen T, Qu Q, Valve EM, Harjula A, Seppänen JA, Väänänen HK, Härkönen PL. Regulation of osteoblast differentiation: a novel function for fibroblast growth factor 8. Endocrinology 2006; 147:2171-82. [PMID: 16439448 DOI: 10.1210/en.2005-1502] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Several members of the fibroblast growth factor (FGF) family have an important role in the development of skeletal tissues. FGF-8 is widely expressed in the developing skeleton, but its function there has remained unknown. We asked in this study whether FGF-8 could have a role in the differentiation of mesenchymal stem cells to an osteoblastic lineage. Addition of FGF-8 to mouse bone marrow cultures effectively increased initial cell proliferation as well as subsequent osteoblast-specific alkaline phosphatase production, bone nodule formation, and calcium accumulation if it was added to the cultures at an early stage of osteoblastic differentiation. Exogenous FGF-8 also stimulated the proliferation of MG63 osteosarcoma cells, which was blocked by a neutralizing antibody to FGF-8b. In addition, the heparin-binding growth factor fraction of Shionogi 115 (S115) mouse breast cancer cells, which express and secrete FGF-8 at a very high level, had an effect in bone marrow cultures similar to that of exogenous FGF-8. Interestingly, experimental nude mouse tumors of S115 cells present ectopic bone and cartilage formation as demonstrated by typical histology and expression of markers specific for cartilage (type II and IX collagen) and bone (osteocalcin). These results demonstrate that FGF-8 effectively predetermines bone marrow cells to differentiate to osteoblasts and increases bone formation in vitro. It is possible that FGF-8 also stimulates bone formation in vivo. The results suggest that FGF-8, which is expressed by a great proportion of malignant breast and prostate tumors, may, among other factors, also be involved in the formation of osteosclerotic bone metastases.
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Affiliation(s)
- Maija P Valta
- Institute of Biomedicine, Department of Anatomy, University of Turku, Finland.
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Mundhenke C, Meyer K, Drew S, Friedl A. Heparan sulfate proteoglycans as regulators of fibroblast growth factor-2 receptor binding in breast carcinomas. THE AMERICAN JOURNAL OF PATHOLOGY 2002; 160:185-94. [PMID: 11786412 PMCID: PMC1867116 DOI: 10.1016/s0002-9440(10)64362-3] [Citation(s) in RCA: 117] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/03/2001] [Indexed: 11/19/2022]
Abstract
Binding of fibroblast growth factors (FGFs) to their tyrosine kinase-signaling receptors (FGFRs) requires heparan sulfate (HS). HS proteoglycans (HSPGs) determine mitogenic responses of breast carcinoma cells to FGF-2 in vitro. For this study, we examined the role of HSPGs as modulators of FGF-2 binding to FGFR-1 in situ and in vitro. During stepwise reconstitution of the FGF-2/HSPG/FGFR-1 complex in situ, we identified an elevated ability of breast carcinoma cell HSPGs to promote receptor complex formation compared to normal breast epithelium. HSPGs isolated from the MCF-7 breast-carcinoma cell line were then fractionated according to their ability to assemble the FGF-2 receptor complex. All MCF-7 HSPGs are decorated with HS chains similarly capable of promoting FGF-2 receptor complex formation. In this in vitro model, syndecan-1 and syndecan-4 are the cell surface HSPGs contributing most to the complex formation. Relative expression levels of these syndecans in human breast carcinoma tissues correlate well with receptor complex formation in situ, indicating that in breast carcinomas, core protein levels determine FGF-2 receptor complex formation. However, variances in syndecan expression levels do not explain the difference in FGF-2 receptor complex formation between normal and malignant epithelial cells, suggesting that alterations in HS structure occur during malignant transformation.
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Affiliation(s)
- Christoph Mundhenke
- Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, Wisconsin 52792-8550, USA
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Ley RD, Miska KB, Kusewitt DF. Photoreactivation of ultraviolet radiation-induced basic fibroblast growth factor (bFGF) and the role of bFGF in corneal lesion formation in Monodelphis domestica. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2001; 38:175-179. [PMID: 11746752 DOI: 10.1002/em.1069] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Chronic ultraviolet radiation (UVR) exposure to the eyes of Monodelphis domestica causes corneal opacification, neovascularization, and fibrosarcoma induction. By immunohistochemistry and Western blotting, we have shown that one to four exposures of the eyes of this opossum to UVR enhances basic fibroblast growth factor (bFGF) expression by the corneal epithelium. Treatment with photoreactivating light, which selectively removes UVR-induced pyrimidine dimers, suppresses bFGF induction, indicating that UVR induction of bFGF is ultimately due to DNA damage. Furthermore, UVR-induced corneal tumors derived from corneal keratocytes express bFGF mRNA and protein, as determined by immunohistochemistry and in situ hybridization. Taken together, these findings suggest that bFGF acts in both an autocrine and a paracrine manner to stimulate corneal fibroplasia, neovascularization, and tumor development.
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Affiliation(s)
- R D Ley
- Department of Cell Biology and Physiology and the Cancer Research and Treatment Center, University of New Mexico, Albuquerque, New Mexico 87131, USA.
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Webb C, Dyson M, Lewis WH. Stimulatory effect of 660 nm low level laser energy on hypertrophic scar-derived fibroblasts: possible mechanisms for increase in cell counts. Lasers Surg Med 2000; 22:294-301. [PMID: 9671996 DOI: 10.1002/(sici)1096-9101(1998)22:5<294::aid-lsm6>3.0.co;2-k] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND OBJECTIVE Varying effects of red light wavelengths on in vitro cells have been reported. Low level lasers (LLL) are employed to assist wound healing especially for indolent ulcers. On healing, burn wounds may become hypertrophic, resulting in excessive wound contraction, poor cosmesis, and functional impairment. This study enquired whether 660 nm LLL affected hypertrophic scar-derived fibroblasts. STUDY DESIGN/MATERIALS AND METHODS The experiments investigated the effect of a 660 nm, 17 mW laser diode at dosages of 2.4 J/cm2 and 4 J/cm2 on cell counts of two human fibroblast cell lines, derived from hypertrophic scar tissue (HSF) and normal dermal (NDF) tissue explants, respectively. The protocol avoided transfer of postirradiated cells. Estimation of fibroblasts utilized the methylene blue bioassay. RESULTS/CONCLUSION The post-660 nm-irradiated HSFs exhibited very significantly higher cell counts than controls P < 0.01 on days 1-4 (Mann-Whitney U-test), and P < 0.01 on days 1-3 for similarly irradiated NDFs.
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Affiliation(s)
- C Webb
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong
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Artuc M, Hermes B, Steckelings UM, Grützkau A, Henz BM. Mast cells and their mediators in cutaneous wound healing--active participants or innocent bystanders? Exp Dermatol 1999; 8:1-16. [PMID: 10206716 DOI: 10.1111/j.1600-0625.1999.tb00342.x] [Citation(s) in RCA: 144] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Mast cells are traditionally viewed as effector cells of immediate type hypersensitivity reactions. There is, however, a growing body of evidence that the cells might play an important role in the maintenance of tissue homeostasis and repair. We here present our own data and those from the literature elucidating the possible role of mast cells during wound healing. Studies on the fate of mast cells in scars of varying ages suggest that these cells degranulate during wounding, with a marked decrease of chymase-positive cells, although the total number of cells does not decrease, based on SCF-receptor staining. Mast cells contain a plethora of preformed mediators like heparin, histamine, tryptase, chymase, VEGF and TNF-alpha which, on release during the initial stages of wound healing, affect bleeding and subsequent coagulation and acute inflammation. Various additional vasoactive and chemotactic, rapidly generated mediators (C3a, C5a, LTB4, LTC4, PAF) will contribute to these processes, whereas mast cell-derived proinflammatory and growth promoting peptide mediators (VEGF, FGF-2, PDGF, TGF-beta, NGF, IL-4, IL-8) contribute to neoangiogenesis, fibrinogenesis or re-epithelization during the repair process. The increasing number of tryptase-positive mast cells in older scars suggest that these cells continue to be exposed to specific chemotactic, growth- and differentiation-promoting factors throughout the process of tissue remodelling. All these data indicate that mast cells contribute in a major way to wound healing. their role as potential initiators of or as contributors to this process, compared to other cell types, will however have to be further elucidated.
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Affiliation(s)
- M Artuc
- Department of Dermatology, Charité-Virchow Clinic, Humboldt University, Berlin, Germany
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Pili R, Chang J, Muhlhauser J, Crystal RG, Capogrossi MC, Passaniti A. Adenovirus-mediated gene transfer of fibroblast growth factor-1: angiogenesis and tumorigenicity in nude mice. Int J Cancer 1997; 73:258-63. [PMID: 9335452 DOI: 10.1002/(sici)1097-0215(19971009)73:2<258::aid-ijc16>3.0.co;2-b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Gene transfer of angiogenic growth factors with replication-deficient recombinant adenovirus (Ad) vectors may provide a new approach to the treatment of ischemic diseases. To determine if Ad-infected cells could stimulate angiogenesis in vivo and to assess the tumorigenicity of cells infected with these vectors, NIH3T3 fibroblasts infected with Ad vectors coding for human acidic fibroblast growth factor (aFGF-1) were used in angiogenic and tumorigenic assays. Infected cells induced a strong angiogenic response in vivo, while cells infected with control virus did not. Stable 3T3 transfectants expressing the FGF-1 gene were also highly angiogenic and exhibited growth in soft agar, while Ad-infected cells did not. Ad-infected cells grew transiently in nude mice, whereas 3T3 transfectants formed large tumors which grew exponentially. Extrapolation of cell dose-response curves showed that a minimum of 1.5 x 10(4) infected cells were required for transient tumor cell growth in vivo. Ad-infected cells cultured in vitro for 30 days lost their invasive phenotype and the ability for transient cell growth in nude mice. Thus, phenotypic changes induced by Ad-mediated gene transfer of FGF-1 are transient both in vitro and in vivo, suggesting that these Ad vectors do not have tumorigenic potential. Stimulation of angiogenesis by Ad-infected cells may be useful for the evaluation of anti-angiogenic and anti-tumor agents.
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Affiliation(s)
- R Pili
- Cell Biology Unit, Laboratory of Biological Chemistry (NIH), Baltimore, MD, USA
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Persistent Systemic Production of Human Factor IX in Mice by Skeletal Myoblast-Mediated Gene Transfer: Feasibility of Repeat Application to Obtain Therapeutic Levels. Blood 1997. [DOI: 10.1182/blood.v90.3.1075.1075_1075_1082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Myoblast-mediated gene transfer and its repeated applications were tested for achieving a long-term stable systemic production of human factor IX (hFIX) at a therapeutic level in SCID mice. Primary skeletal myoblasts were stably transfected with a hFIX expression plasmid vector, pdLMe4βAhIXm1, which contains a hFIX minigene under the control of a β-actin promoter with muscle creatine kinase enhancers. Myotubes derived from the myoblasts produced 1,750 ng hFIX/106 cells/24 hours in culture. hFIX secretion by the myoblasts and thereof derived myotubes were equally efficient, and myotubes were shown to have a sufficient secretory capacity to handle a substantially elevated production of hFIX. After intramuscular injection of 5, 10, and 20 × 106 myoblasts, SCID mice stably produced hFIX into the systemic circulation proportional to the number of implanted cells, and the expression levels were maintained for at least up to 10 months (end of the experiment). Additional cell injections administered to animals that originally received 10 × 106 cells approximately 2 months later elevated the systemic hFIX levels to an average of 182 ± 21 ng/mL, a therapeutic level, which persisted for at least 8 months (end of the experiment). These results indicate that long-term, stable systemic production of hFIX at therapeutic levels can be achieved by repeated application of myoblast-mediated gene transfer.
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Persistent Systemic Production of Human Factor IX in Mice by Skeletal Myoblast-Mediated Gene Transfer: Feasibility of Repeat Application to Obtain Therapeutic Levels. Blood 1997. [DOI: 10.1182/blood.v90.3.1075] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Myoblast-mediated gene transfer and its repeated applications were tested for achieving a long-term stable systemic production of human factor IX (hFIX) at a therapeutic level in SCID mice. Primary skeletal myoblasts were stably transfected with a hFIX expression plasmid vector, pdLMe4βAhIXm1, which contains a hFIX minigene under the control of a β-actin promoter with muscle creatine kinase enhancers. Myotubes derived from the myoblasts produced 1,750 ng hFIX/106 cells/24 hours in culture. hFIX secretion by the myoblasts and thereof derived myotubes were equally efficient, and myotubes were shown to have a sufficient secretory capacity to handle a substantially elevated production of hFIX. After intramuscular injection of 5, 10, and 20 × 106 myoblasts, SCID mice stably produced hFIX into the systemic circulation proportional to the number of implanted cells, and the expression levels were maintained for at least up to 10 months (end of the experiment). Additional cell injections administered to animals that originally received 10 × 106 cells approximately 2 months later elevated the systemic hFIX levels to an average of 182 ± 21 ng/mL, a therapeutic level, which persisted for at least 8 months (end of the experiment). These results indicate that long-term, stable systemic production of hFIX at therapeutic levels can be achieved by repeated application of myoblast-mediated gene transfer.
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Mohammadi M, McMahon G, Sun L, Tang C, Hirth P, Yeh BK, Hubbard SR, Schlessinger J. Structures of the tyrosine kinase domain of fibroblast growth factor receptor in complex with inhibitors. Science 1997; 276:955-60. [PMID: 9139660 DOI: 10.1126/science.276.5314.955] [Citation(s) in RCA: 894] [Impact Index Per Article: 33.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A new class of protein tyrosine kinase inhibitors was identified that is based on an oxindole core (indolinones). Two compounds from this class inhibited the kinase activity of fibroblast growth factor receptor 1 (FGFR1) and showed differential specificity toward other receptor tyrosine kinases. Crystal structures of the tyrosine kinase domain of FGFR1 in complex with the two compounds were determined. The oxindole occupies the site in which the adenine of adenosine triphosphate binds, whereas the moieties that extend from the oxindole contact residues in the hinge region between the two kinase lobes. The more specific inhibitor of FGFR1 induces a conformational change in the nucleotide-binding loop. This structural information will facilitate the design of new inhibitors for use in the treatment of cancer and other diseases in which cell signaling by tyrosine kinases plays a crucial role in disease pathogenesis.
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MESH Headings
- 3T3 Cells
- Adenosine Triphosphate/metabolism
- Amino Acid Sequence
- Animals
- Crystallography, X-Ray
- Enzyme Inhibitors/chemistry
- Enzyme Inhibitors/metabolism
- Enzyme Inhibitors/pharmacology
- ErbB Receptors/antagonists & inhibitors
- ErbB Receptors/metabolism
- Hydrogen Bonding
- Mice
- Models, Molecular
- Phosphorylation
- Phosphotyrosine/metabolism
- Piperazines/chemistry
- Piperazines/metabolism
- Piperazines/pharmacology
- Protein-Tyrosine Kinases/antagonists & inhibitors
- Protein-Tyrosine Kinases/chemistry
- Protein-Tyrosine Kinases/metabolism
- Pyrroles/chemistry
- Pyrroles/metabolism
- Pyrroles/pharmacology
- Receptor Protein-Tyrosine Kinases
- Receptor, Fibroblast Growth Factor, Type 1
- Receptor, Insulin/antagonists & inhibitors
- Receptor, Insulin/metabolism
- Receptors, Fibroblast Growth Factor/antagonists & inhibitors
- Receptors, Fibroblast Growth Factor/chemistry
- Receptors, Fibroblast Growth Factor/metabolism
- Receptors, Platelet-Derived Growth Factor/antagonists & inhibitors
- Receptors, Platelet-Derived Growth Factor/metabolism
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Affiliation(s)
- M Mohammadi
- Department of Pharmacology, New York University Medical Center, New York, NY 10016, USA
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Yoshimura K, Eto H, Miyake H, Hara I, Arakawa S, Kamidono S. Messenger ribonucleic acids for fibroblast growth factors and their receptor in bladder and renal cell carcinoma cell lines. Cancer Lett 1996; 103:91-7. [PMID: 8616814 DOI: 10.1016/0304-3835(96)04198-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
FGF-like growth factors have been detected in the urine of patients with bladder or renal cell carcinoma. FGF-1-like and FGF-2-like proteins have been detected in the urine of patients with bladder carcinoma. However, the expression of FGFs and their receptor in bladder and renal cell carcinoma cells remains limited. We measured the mRNA levels of FGFs and their receptor in these carcinoma cell lines by means of RT-PCR. We detected FGF-8 mRNA expression in murine cell lines of bladder and renal cell carcinomas but not in those of the normal bladder and kidney. Furthermore, FGF-8 mRNA expression was detected in all human bladder and renal cell carcinoma cell lines tested. We also frequently detected FGF-1, FGF-2 and FGF-5 mRNA expression in human bladder and renal cell carcinoma cell lines. These results indicate that FGF-8 is also candidate for marker of these types of carcinoma as well as FGF-1 and FGF-2.
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Affiliation(s)
- K Yoshimura
- Department of Urology, Kobe University School of Medicine, Japan
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