351
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Ohashi H. [Combined valvular heart disease]. RYOIKIBETSU SHOKOGUN SHIRIZU 1996:448-50. [PMID: 9117677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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352
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Ohashi H, Yamaguchi M. [Asplenia syndrome (Ivemark syndrome)]. RYOIKIBETSU SHOKOGUN SHIRIZU 1996:334-6. [PMID: 9048035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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353
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Kuwano A, Morimoto Y, Nagai T, Fukushima Y, Ohashi H, Hasegawa T, Kondo I. Precise chromosomal locations of the genes for dentatorubral-pallidoluysian atrophy (DRPLA), von Willebrand factor (F8vWF) and parathyroid hormone-like hormone (PTHLH) in human chromosome 12p by deletion mapping. Hum Genet 1996; 97:95-8. [PMID: 8557270 DOI: 10.1007/bf00218841] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The precise chromosomal localization of the gene for dentatorubral-pallidoluysian atrophy (DRPLA) was detected by deletion mapping. Segregation patterns of genotypes of polymerase chain reaction products of DRPLA, von Willebrand factor (F8vWF), antigen CD4(p55) (CD4) and parathyroid hormone-like hormone (PTHLH) loci were studied in patients with del(12)(p13.3p13.3), del(12)(p12.3-p11.2), del(12)(p12.1-p11.2), del(12) (p11.2p11.2) and their parents. The gene for DRPLA was assigned to p13.1-p12.3 of chromosome 12. In addition, genes for F8vWF and PTHLH were mapped to p13.2 and p11.2 of chromosome 12, respectively.
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354
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Toyoda Y, Yamaguchi M, Ohashi H, Imai M, Oshima Y, Yoshimura N, Yamashita T. Staged repair of tetralogy of Fallot and pulmonary atresia without central pulmonary arteries. Ann Thorac Surg 1996; 61:210-3. [PMID: 8561557 DOI: 10.1016/0003-4975(95)00740-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A 15-year-old boy with tetralogy of Fallot and pulmonary atresia without central pulmonary arteries who was successfully treated using a staged approach is presented. The first stage consisted of the creation of central pulmonary arteries. In the second stage, the continuity between the right ventricle and the pulmonary arteries was established with closure of the ventricular septal defect. Some patients previously considered to be unsuitable candidates for correction may be successfully repaired using this approach.
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355
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356
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Yutani Y, Ohashi H, Nishimura N, Yamano Y. Clinical effect of etidronate disodium (EHDP) on heterotopic ossification following total hip arthroplasty. OSAKA CITY MEDICAL JOURNAL 1995; 41:63-73. [PMID: 8778647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
We investigated the status of the development of heterotopic ossification and compared the frequency of heterotopic ossification in the EHDP group with that in the untreated (control) group to evaluate the efficacy and safety of EHDP. Seventy-seven patients who had undergone total hip arthroplasty or femoral head prosthesis for the treatment of osteoarthritis and femoral neck fracture were enrolled in the study. Heterotopic ossification surrounding the hip joint was evaluated according to the roentgenographic classification. In the control group, heterotopic ossification was found in 10 patients (20%) during the period, while in the EHDP group, it was found in one patient (3.7%) during the treatment period after the operation. Gastrointestinal disorder, in one case only was a side effect observed during EHDP treatment. It was revealed that EHDP inhibits heterotopic ossification following total hip replacement in patients with osteoarthritis.
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357
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Ohashi H, Itoh Y, Birckbichler PJ, Takeuchi Y. Purification and characterization of rat brain transglutaminase. J Biochem 1995; 118:1271-8. [PMID: 8720146 DOI: 10.1093/oxfordjournals.jbchem.a125018] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Transglutaminase (TGase) catalyzes an acyl-transfer reaction between peptidyl glutamine residues and primary amines including the epsilon-amino group of lysine residues in protein. TGase in the neuronal system has been suggested to be involved in neurotransmitter release, long-term potentiation, and so forth. In order to study the mammalian brain TGase at the molecular level, TGase was purified to apparent homogeneity from Sprague-Dawley rat brain, using DEAE ion exchange, and heparin and alpha-casein affinity column chromatographies. The brain TGase was concentrated 11,400-fold and had a specific activity of 11,000 nmol/h/mg protein. The purified protein migrated on SDS-PAGE to a position corresponding to a molecular size of approximately 75 kDa. The brain TGase activity was Ca(2+)-dependent (EC50 approximately 0.28 mM), and its Km values for putrescine and N,N-dimethylcasein were 0.26 and 0.065 mM, respectively. GTP inhibited the brain enzyme activity 100-fold more potently than ATP did, and the enzyme was photolabeled with [alpha-32P]8-azido-GTP, suggesting that the brain TGase is a member of the GTP-binding protein family. Monoiodo-acetate and cystamine potently inhibited the enzyme activity, suggesting that cysteine residue(s) are essential for brain TGase. Zn2+ inhibited the enzyme, while Mg2+ was not inhibitory. The rat brain TGase reacted only weakly with monoclonal and polyclonal antibodies against tissue-type TGase such as guinea pig liver TGase and human red blood cell TGase, while it did not react with antibodies against non-tissue types of TGase, namely human epidermal TGase and human coagulation factor XIIIa. The results suggest that rat brain TGase shares major characteristics with tissue-type TGase, but is nevertheless distinct from tissue-type TGase.
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358
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Nishimura G, Fukushima Y, Ohashi H, Ikegawa S. Atypical radiological findings in achondroplasia with uncommon mutation of the fibroblast growth factor receptor-3 (FGFR-3) gene (Gly to Cys transition at codon 375). AMERICAN JOURNAL OF MEDICAL GENETICS 1995; 59:393-5. [PMID: 8599370 DOI: 10.1002/ajmg.1320590325] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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359
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360
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Nishimura G, Takano H, Aihara T, Ohashi H, Fukushima Y, Satoh M. Radiological changes of frontometaphyseal dysplasia in the neonate. Pediatr Radiol 1995; 25 Suppl 1:S143-6. [PMID: 8577509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The radiological manifestation of frontometaphyseal dysplasia has been well elucidated in later childhood and adulthood, but it has not been thoroughly clarified in the neonate. Here we report the radiological features of a neonate with frontometaphyseal dysplasia. Most features, including twisted ribs, increased interpediculate distances of the lumbar spine, flared ilia, mildly flared and bowed long bones, and arachnodactyly with undermodeled short tubular bones, were reminiscent of those found in older children and adults. A previously undescribed abnormality was advanced ossification of the femoral and tibial epiphyses.
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361
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Takahashi K, Kido S, Hoshino K, Ogawa K, Ohashi H, Fukushima Y. Frequency of a 22q11 deletion in patients with conotruncal cardiac malformations: a prospective study. Eur J Pediatr 1995; 154:878-81. [PMID: 8582397 DOI: 10.1007/bf01957496] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Recent molecular studies have revealed that a 22q11 deletion is frequently detected in DiGeorge syndrome (DGS), velo-cardio-facial syndrome (VCFS), and conotruncal anomaly face syndrome (CTAFS). As one of the major clinical manifestations in these three syndrome is conotruncal cardiac malformation, we prospectively studied the frequency of a 22q11 deletion in a group of patients with conotruncal cardiac malformation. Fluorescence in situ hybridization (FISH) analyses using N25 (D22S75) DiGeorge Chromosome Region probe were performed on 64 patients with conotruncal cardiac malformation, who visited our clinic from October 1993 to January 1994. Of the 64 patients studied, a 22q11 deletion was detected in 5 patients (7.8%): 3 out of 30 patients with tetralogy of Fallot, one of three with interruption of the aortic arch, and one hemitruncus patient. No deletion was found in 16 patients with complete transposition of the great arteries, 8 with double outlet right ventricle and 2 with aortopulmonary window. In these five patients with 22q11 deletion, patient 1 was clinically diagnosed as having DGS, patients 2 and 3 had CTAFS, and patient 4 had VCFS. Patient 5 could not be dysmorphologically evaluated. It was noteworthy that all patients with a 22q11 deletion, except a non-evaluated patient, had some symptoms DGS, CTAFS or VCFS, and that we failed to identify a non-syndromic 22q11 deletion positive patients in the present series' of 64 patients. Conclusion. This study suggests that it is advisable to bear 22q11 deletion in mind when a patient with conotruncal cardiac anomalies has some other features of DGS, VCFS or CTAFS.
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363
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Ohashi H, Ogawa N. [Analysis of Fas and bcl-2 expression on peripheral blood lymphocytes from primary Sjögren's syndrome]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 1995; 53:2451-5. [PMID: 8531354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The Fas antigen is the major trigger for apoptosis. In MRL/lpr mice, defects in Fas expression lead to autoimmunity and lymphoid accumulation, same as in the Sjögren's syndrome (SS). Bcl-2 protein is able to repress a number of apoptotic death. Therefore, we examined both Fas antigen and bcl-2 expression in peripheral blood lymphocyte (PBL) from SS patients. The rate of Fas+CD4+ PBL was significantly elevated (p < 0.01) in SS patients (n = 11) compared to normal controls (n = 15). Both Fas+CD3+ and Fas+CD8+ cells from SS patients showed a tendency to increase, whereas Fas+B cell was not different between each group. The percentages of bcl-2+ lymphocytes in SS patients were no different compared to the normal control. This study suggests that the increased expression of Fas may result in enhanced susceptibility to apoptosis.
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364
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Uematsu M, Yamaguchi M, Ohashi H, Ataka K, Imai M, Oshima Y, Yoshimura N. [A case of Ebstein's anomaly treated by tricuspid valve replacement]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 1995; 48:853-6. [PMID: 7474586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A 8-year-old girl with Ebstein's anomaly was operated on because of progressive heart failure caused by severe tricuspid regurgitation. At the operation, the tricuspid leaflets were found to be destroyed, and the annulus was very enlarged. The enlarged true tricuspid annulus was constricted using the DeVega method, and the tricuspid valve was replaced on the true annulus using a porcine valve. To avoid injury to the auriculoventricular bundle, the suture line was shifted to the false annulus at the portion close to the course of His' bundle. Postoperative course was uneventful in satisfactory condition. The role of valve replacement in the treatment of Ebstein's anomaly of the tricuspid valve is not only to improve valve formation, but also to secure the function of the right ventricle. It is ideal to replace the tricuspid valve on the true annulus provided that the injury to the His' bundle is safely avoided.
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365
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Fukushima Y, Ohashi H, Wakui K, Nishimoto H, Sato M, Aihara T. De novo apparently balanced reciprocal translocation between 5q11.2 and 17q23 associated with Klippel-Feil anomaly and type A1 brachydactyly. AMERICAN JOURNAL OF MEDICAL GENETICS 1995; 57:447-9. [PMID: 7677149 DOI: 10.1002/ajmg.1320570317] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We report on a girl with Klippel-Feil anomaly, type A1 brachydactyly, and minor facial anomalies. She has an apparently balanced de novo reciprocal translocation between 5q11.2 and 17q23. The possible significance of this chromosomal abnormality is discussed.
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366
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Ohashi H, Maeda T, Mishima H, Otori T, Nishida T, Sekiguchi K. Up-regulation of integrin alpha 5 beta 1 expression by interleukin-6 in rabbit corneal epithelial cells. Exp Cell Res 1995; 218:418-23. [PMID: 7540982 DOI: 10.1006/excr.1995.1174] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Interleukin-6 (IL-6) has been shown to promote the attachment of rabbit corneal epithelial cells to fibronectin-coated substratum and ex vivo migration of the cells on the corneal stroma. To examine whether IL-6 promotes cell attachment through up-regulation of expression of integrin alpha 5 beta 1, i.e., the major cell surface fibronectin receptor, we quantified the levels of both alpha 5 and beta 1 subunit transcripts by reverse transcription-polymerase chain reaction in cultured rabbit corneal epithelial cells pretreated with various concentrations of IL-6. The levels of both alpha 5 and beta 1 mRNAs were dose-dependently elevated by IL-6, attaining 1.5- and 1.8-fold increases, respectively, at 10 ng/ml. The stimulatory effect of IL-6 was transient; the levels of both subunit mRNAs reached a maximum 1 h after the addition of IL-6 and returned to the basal levels after 6 h. The IL-6-induced up-regulation of integrin alpha 5 and beta 1 mRNAs was also confirmed by Northern blot analysis. These results indicate that the increased attachment of corneal epithelial cells to fibronectin and enhanced ex vivo migration on corneal stroma by IL-6 is, at least in part, due to the temporal up-regulation of integrin alpha 5 beta 1 expression in corneal epithelial cells.
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367
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Nichol JL, Hokom MM, Hornkohl A, Sheridan WP, Ohashi H, Kato T, Li YS, Bartley TD, Choi E, Bogenberger J. Megakaryocyte growth and development factor. Analyses of in vitro effects on human megakaryopoiesis and endogenous serum levels during chemotherapy-induced thrombocytopenia. J Clin Invest 1995; 95:2973-8. [PMID: 7539462 PMCID: PMC295986 DOI: 10.1172/jci118005] [Citation(s) in RCA: 148] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The present study shows that recombinant human megakaryocyte growth and development factor (r-HuMGDF) behaves both as a megakaryocyte colony stimulating factor and as a differentiation factor in human progenitor cell cultures. Megakaryocyte colony formation induced with r-HuMGDF is synergistically affected by stem cell factor but not by interleukin 3. Megakaryocytes stimulated with r-HuMGDF demonstrate progressive cytoplasmic and nuclear maturation. Measurable levels of megakaryocyte growth and development factor in serum from patients undergoing myeloablative therapy and transplantation are shown to be elaborated in response to thrombocytopenic stress. These data support the concept that megakaryocyte growth and development factor is a physiologically regulated cytokine that is capable of supporting several aspects of megakaryopoiesis.
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368
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Choi ES, Hokom M, Bartley T, Li YS, Ohashi H, Kato T, Nichol JL, Skrine J, Knudten A, Chen J. Recombinant human megakaryocyte growth and development factor (rHuMGDF), a ligand for c-Mpl, produces functional human platelets in vitro. Stem Cells 1995; 13:317-22. [PMID: 7542117 DOI: 10.1002/stem.5530130313] [Citation(s) in RCA: 75] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Platelet formation, occurring from bone marrow or lung megakaryocytes, has been difficult to study mechanistically. Recombinant human megakaryocyte growth and development factor (rHuMGDF), a recently described cytokine, has now been used to establish an in vitro system in which this important and little understood process occurs. CD34+ cells cultured with rHuMGDF develop into megakaryocytes which form long cytoplasmic extensions (proplatelets) that fragment into platelet-sized particles (in vitro platelets). Morphologically, in vitro and human plasma-derived platelets (control platelets) are virtually identical with respect to size, dense granule distribution and ultrastructural features. Functionally, in vitro and control platelets have similar aggregation and activation responses, and similarly incorporate mepacrine into dense granules. These findings suggest that rHuMGDF is sufficient to generate platelet-synthesizing megakaryocytes from CD34+ cells and provide an experimental setting in which the study of human platelet formation can be adequately performed.
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369
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Unno T, Komori S, Ohashi H. Inhibitory effect of muscarinic receptor activation on Ca2+ channel current in smooth muscle cells of guinea-pig ileum. J Physiol 1995; 484 ( Pt 3):567-81. [PMID: 7623277 PMCID: PMC1157944 DOI: 10.1113/jphysiol.1995.sp020687] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
1. The effect of muscarinic receptor stimulation on voltage-gated calcium channel currents was examined in whole-cell voltage-clamped smooth muscle cells of the guinea-pig ileum. 2. In cells voltage clamped at -60 mV and in which calcium channel currents (ICa) were elicited repeatedly by depolarizing pulses (25 ms duration, 0.25 Hz frequency) to 0 mV, carbachol (CCh, 10 microM) induced an inward current (ICCh) and were suppressed ICa, in a biphasic manner; an initial transient component was followed by a more sustained one. 3. A calcium channel current (IBa), when Ba2+ was used as a charge carrier, was also suppressed by CCh in a biphasic manner, as with ICa. The sustained phase of the IBa suppression was significantly smaller than that of the ICa suppression, suggesting that Ca2+ entry exerts a potentiating effect on the current suppression. 4. CCh had little or no effect on calcium channel currents (ICa and IBa) in cells dialysed with a pipette solution containing EGTA (20 mM). 5. Inclusion of GDP-beta-S (1 mM) in the pipette solution abolished ICCh and the suppression of IBa. With GTP-gamma-S (10 microM) in the pipette, the sustained phase of the IBa suppression remained almost unchanged even after removal of CCh. 6. Pretreatment with 2 micrograms ml-1 pertussis toxin (PTX), which abolished ICCh, did not change noticeably the initial transient and sustained phases of IBa suppression. 7. Neomycin (100 microM) or heparin (5 mg ml-1) in the pipette each abolished the initial transient component of ICCh as well as the initial transient phase of IBa suppression. 8. The biphasic effect of CCh on IBa was observed in the presence of either staurosporine (1 microM) or 1-(5-isoquinolinesulphonyl)-2-methylpiperazine (100 microM). Phorbol 12-myristate 13-acetate and phorbol 12,13-dibutyrate (up to 10 microM) had no inhibitory effect on ICa and IBa. 9. The results suggest that stimulation of the muscarinic receptor causes a biphasic suppression of the voltage-gated calcium channel currents through a PTX-insensitive G protein in guinea-pig ileal smooth muscle cells. The initial transient phase may be brought about by the release of Ca2+ from internal storage sites, and the sustained phase by a Ca(2+)-dependent mechanism which is independent of the phosphatidylinositol pathway.
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Komori S, Itagaki M, Unno T, Ohashi H. Caffeine and carbachol act on common Ca2+ stores to release Ca2+ in guinea-pig ileal smooth muscle. Eur J Pharmacol 1995; 277:173-80. [PMID: 7493606 DOI: 10.1016/0014-2999(95)00072-s] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
To characterize intracellular Ca2+ stores, the Ca(2+)-releasing effects of caffeine, carbachol and inositol 1,4,5-trisphosphate (IP3) were compared by measuring the drug-induced tension development in beta-escin-skinned longitudinal smooth muscle of guinea-pig ileum. Caffeine (20 mM), carbachol (10 or 100 microM) or IP3 (40 microM), applied after loading Ca2+ within intracellular stores, produced a transient rise in tension in a Ca(2+)-free solution. This change in tension occurred in response to release of Ca2+ from the stores. The effect of either caffeine or carbachol was markedly reduced or abolished after preceding application of the other drug. IP3 was without effect when applied subsequently to caffeine. The effects of carbachol and IP3 were abolished after combined treatment with ryanodine (30 microM) and caffeine (20 mM) which causes functional removal of caffeine-releasable Ca2+ stores, but not after combined treatment with ryanodine (30 microM) and carbachol (10 microM). The results suggest that caffeine, carbachol and IP3 all act on common Ca2+ stores to release Ca2+.
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371
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Ohashi H, Chen Y, Akiyama M. Simulation of shock-interface interaction using a lattice Boltzmann model. NUCLEAR ENGINEERING AND DESIGN 1995. [DOI: 10.1016/0029-5493(94)00869-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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372
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Schell U, Hehr A, Feldman GJ, Robin NH, Zackai EH, de Die-Smulders C, Viskochil DH, Stewart JM, Wolff G, Ohashi H. Mutations in FGFR1 and FGFR2 cause familial and sporadic Pfeiffer syndrome. Hum Mol Genet 1995; 4:323-8. [PMID: 7795583 DOI: 10.1093/hmg/4.3.323] [Citation(s) in RCA: 162] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Pfeiffer syndrome (PS) is an autosomal dominant skeletal disorder which affects the bones of the skull, hands and feet. Previously, we have mapped PS in a subset of families to chromosome 8cen by linkage analysis and demonstrated a common mutation in the fibroblast growth factor receptor-1 (FGFR1) gene in the linked families. Here we report a second locus for PS on chromosome 10q25, and present evidence that mutations in the fibroblast growth factor receptor-2 (FGFR2) gene on 10q25 cause PS in an additional subset of familial and sporadic cases. Three different point mutations in FGFR2, which alter the same acceptor splice site of exon B, were observed in both sporadic and familial PS. In addition, a T to C transition in exon B predicting a cysteine to arginine substitution was identified in three sporadic PS individuals. Interestingly, this T to C change is identical to a mutation in FGFR2 previously reported in Crouzon syndrome, a phenotypically similar disorder but one lacking the hand and foot anomalies seen in PS. Our results highlight the genetic heterogeneity in PS and suggest that the molecular data will be an important complement to the clinical phenotype in defining craniosynostosis syndromes.
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MESH Headings
- Abnormalities, Multiple/genetics
- Adolescent
- Adult
- Base Sequence
- Child
- Child, Preschool
- Chromosome Mapping
- Chromosomes, Human, Pair 10
- Craniosynostoses/genetics
- Exons
- Female
- Foot Deformities, Congenital/genetics
- Genetic Linkage
- Hand Deformities, Congenital/genetics
- Humans
- Infant
- Infant, Newborn
- Male
- Molecular Sequence Data
- Mutation
- Pedigree
- Point Mutation
- Polymorphism, Restriction Fragment Length
- Polymorphism, Single-Stranded Conformational
- Receptors, Fibroblast Growth Factor/genetics
- Syndrome
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373
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Teruya K, Yano T, Shirahata S, Watanabe J, Osada K, Ohashi H, Tachibana H, Kim EH, Murakami H. Ras amplification in BHK-21 cells produces a host cell line for further rapid establishment of recombinant protein hyper-producing cell lines. Biosci Biotechnol Biochem 1995; 59:341-4. [PMID: 7766036 DOI: 10.1271/bbb.59.341] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
To rapidly establish recombinant protein hyper-producing cell lines we introduced a reporter plasmid into BHK-21 cells that had been 'primed' by transfection and amplification of the ras oncogene. The reporter plasmid used carries the human interleukin-6 (hIL-6) gene which is under control of the human cytomegalovirus immediate early promoter. The primed BHK cell lines were shown to produce many stable hIL-6 hyper-producing cells achieving about 15 times higher productivity than the control BHK-21 cells.
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374
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Shirahata S, Watanabe J, Teruya K, Yano T, Osada K, Ohashi H, Tachibana H, Kim EH, Murakami H. E1A and ras oncogenes synergistically enhance recombinant protein production under control of the cytomegalovirus promoter in BHK-21 cells. Biosci Biotechnol Biochem 1995; 59:345-7. [PMID: 7766037 DOI: 10.1271/bbb.59.345] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The amplified ras oncogene greatly enhanced the production of recombinant human interleukin-6 (hIL-6) under control of the cytomegalovirus immediate early promoter (CMV promoter) in BHK-21 cells. When the adenovirus E1A oncogene was further transfected into the above mentioned ras-amplified hIL-6 hyperproducing BHK cells, the transfectants had about 10 times higher productivity than non-transfectants. However, the E1A gene alone did not enhance productivity. These results implicate a ras and E1A synergistic ability that acts to enhance hIL-6 production.
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375
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Nagai T, Nishimura G, Kato R, Hasegawa T, Ohashi H, Fukushima Y. Del(12)(p11.21p12.2) associated with an asphyxiating thoracic dystrophy or chondroectodermal dysplasia-like syndrome. AMERICAN JOURNAL OF MEDICAL GENETICS 1995; 55:16-8. [PMID: 7702088 DOI: 10.1002/ajmg.1320550106] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We describe a 5-year-old Japanese boy who has some radiographic findings characteristic of asphyxiating thoracic dystrophy (ATD)-chondroectodermal dysplasia with a de novo chromosome abnormality. He also has mild mental retardation, short stature, hypoplastic hair and skin, oligodontia, small thoracic cage, hypoplastic pelvis and cone-shaped epiphyses of hands. On cytogenetic studies he was found to have a de novo del(12)(p11.21p12.2). These results suggest that the locus of the gene associated with ATD-chondroectodermal dysplasia may be situated at 12p11.21p12.2.
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