26
|
Tamborero D, Mont Girbau J, Molina I, De Caralt T, Nava S, Macias A, Diaz-Infante E, Brugada J. 281 Incidence of asymptomatic pulmonary vein stenosis in atrial fibrillation ablation. Segmental ostial ablation versus pulmonary veins encircling. Europace 2005. [DOI: 10.1016/eupace/7.supplement_1.62-b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
|
27
|
Maceira A, Barba J, Cosin-Sales J, Macias A, Berenguel A, Herreros J, Rabago G. Preservation of left and right atrial function with the bicaval technique in heart transplantation. J Heart Lung Transplant 2002. [DOI: 10.1016/s1053-2498(01)00551-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
28
|
Macias A, Riera A. Calculation of radial couplings between approximate wavefunctions in atomic collisions. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0022-3700/10/5/022] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
29
|
Macias A, Riera A, Salin A. Molecular model of the K-shell vacancy sharing process in heavy ion collisions. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0022-3700/12/3/021] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
30
|
|
31
|
|
32
|
Macias A, Riera A. Calculation of radial couplings between approximate wavefunctions in atomic collisions. II. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0022-3700/11/6/018] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
33
|
Lopez V, Macias A, Riera A, Yanez M, Piacentini RD. Molecular treatment of elastic and double charge-exchange He2+-He collisions. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0022-3700/11/16/016] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
34
|
Krizek BA, Prost V, Macias A. AINTEGUMENTA promotes petal identity and acts as a negative regulator of AGAMOUS. THE PLANT CELL 2000; 12:1357-66. [PMID: 10948255 PMCID: PMC149108 DOI: 10.1105/tpc.12.8.1357] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2000] [Accepted: 06/02/2000] [Indexed: 05/19/2023]
Abstract
The Arabidopsis AINTEGUMENTA (ANT) gene has been shown previously to be involved in ovule development and in the initiation and growth of floral organs. Here, we show that ANT acts in additional processes during flower development, including repression of AGAMOUS (AG) in second whorl cells, promotion of petal epidermal cell identity, and gynoecium development. Analyses of ap2-1 ant-6 double mutants reveal that ANT acts redundantly with AP2 to repress AG in second whorl cells. The abaxial surface of ant petals contains features such as stomata and elongated, interdigitated cells that are not present on wild-type petals. The loss of petal identity in these second whorl cells does not result from ectopic AG expression, suggesting that ANT acts in a pathway promoting petal cell identity that is independent of its role in repression of AG. These data suggest that ANT may function as a class A gene.
Collapse
|
35
|
Macias A, Arce S, Leon J, Mustelier G, Bombino G, Domarco A, Perez R, Lage A. Novel cross-reactive anti-idiotype antibodies with properties close to the human intravenous immunoglobulin (IVIg). Hybridoma (Larchmt) 1999; 18:263-72. [PMID: 10475241 DOI: 10.1089/027245799315925] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The most important link between the immune network theory and clinically useful therapies so far is the use of human intravenous immunoglobulin (IVIg) in the treatment of autoimmune diseases. Although still controversial, one of the main mechanisms that has been postulated for the in vivo effects of IVIg, is the selection of immune repertoires through idiotypic interactions. We describe here anti-idiotype IgG monoclonal antibodies (MAbs), which were obtained by immunization of syngeneic mice (Balb/c) with an anti-ganglioside antibody. These anti-idiotype MAbs show multiple idiotypic connections and share some of the properties of the IVIg pool. The antiidiotype (Ab2) MAbs B7 and 34B7 showed heterogeneous binding with the idiotypes of several anti-ganglioside antibodies, MAbs obtained from splenocytes of nonimmunized newborn mice, F(ab')2 fragments of IgG human myeloma proteins, and nonimmunoglobulin antigens. The recognition pattern of the B7 MAb to the idiotypes of human immunoglobulins was also studied using a phage display library obtained from the variable region genes of an asymptomatic AIDS patient and also F(ab')2 fragments obtained from an IVIg pool of healthy human donors. We also demonstrated that these MAbs produced some of the in vitro effects reported for the human IVIg pool, such as the inhibition of cell proliferation of human B and T cell lines and of normal human lymphocytes activated with different mitogens. Another striking property of the MAb B7 was its ability to induce a dose-dependent specific antibody T-cell response in vivo in syngeneic mice. Both anti-idiotype MAbs showed anti-metastatic effect in vivo when injected intravenously to mice inoculated with MB16-F10 melanoma cells. The antimetastatic effect of the antiidiotype MAbs was not observed in athymic mice inoculated with the same tumor. This kind of antibody can become an interesting tool for further exploration of the role of idiotypic network connections in the regulation of the immune system and to study the effects of interventions on network connectivity in experimental autoimmune disease, using a reagent better chemically defined than the IVIg pool.
Collapse
MESH Headings
- Animals
- Antibodies, Anti-Idiotypic/immunology
- Antibodies, Anti-Idiotypic/therapeutic use
- Antibodies, Monoclonal/immunology
- Antibodies, Monoclonal/therapeutic use
- Autoimmune Diseases/immunology
- Autoimmune Diseases/therapy
- B-Lymphocytes/cytology
- B-Lymphocytes/immunology
- Cell Division
- Cell Line
- Cross Reactions
- G(M2) Ganglioside/immunology
- Humans
- Immunoglobulin G/immunology
- Immunoglobulin G/therapeutic use
- Immunoglobulin Idiotypes/immunology
- Immunoglobulins, Intravenous/immunology
- In Vitro Techniques
- Melanoma, Experimental/immunology
- Melanoma, Experimental/secondary
- Melanoma, Experimental/therapy
- Mice
- Mice, Inbred C57BL
- Mice, Nude
- T-Lymphocytes/cytology
- T-Lymphocytes/immunology
Collapse
|
36
|
Macias A, Riera A. Criterion of maximum stability for the calculation of resonance energies. Application to the Stark effect. ACTA ACUST UNITED AC 1999. [DOI: 10.1088/0022-3700/14/6/008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
37
|
Macias A, Riera A, Salas PJ, Ponce VH. United-atom limit of radial couplings between molecular wavefunctions. ACTA ACUST UNITED AC 1999. [DOI: 10.1088/0022-3700/20/2/013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
38
|
de Pablos P, Martinez J, Aguilar J, Rodriguez F, Macias A. 2.P.109 Lack of effect of acute and chronic normalization of plasma growth hormone concentration on lipoprotein (a) levels in patients with acromegalia. Atherosclerosis 1997. [DOI: 10.1016/s0021-9150(97)88747-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
39
|
de Pablos P, Martinez J, Aguilar J, Rodriguez F, Murado P, Macias A. 2.P.108 Effects of losartan on blood pressure, microalbuminuria, insulin sensitivity and lipid profile in hypertensive type II diabetics with microalbuminuria. Atherosclerosis 1997. [DOI: 10.1016/s0021-9150(97)88745-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
40
|
Castro JA, Romero J, García-Vázquez JA, Macias A, Sousa A, Englert U. Dichloro[5,8-dimethyl-1,12-di-2-pyrrolyl-2,5,8,11-tetraaza-1,11-dodecadiene-N2,N5,N8,N11]cadmium(II). Acta Crystallogr C 1994. [DOI: 10.1107/s0108270193007577] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|
41
|
Zhang L, Macias A, Isnin R, Lu T, Gokel GW, Kaifer AE. The complexation of ferrocene derivatives by a water-soluble calix[6]arene. ACTA ACUST UNITED AC 1994. [DOI: 10.1007/bf00708993] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
42
|
Castro J, Romero J, Garcia-Vazquez J, Macias A, Sousa A, Englert U. Electrochemical synthesis of metal(II) complexes of schiff bases: the crystal structure of acetonitrile-bis{2-[(2-pyrrole)methylimino]-4,6-dimethylphenolato}zinc(II). Polyhedron 1993. [DOI: 10.1016/s0277-5387(00)84331-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
43
|
Labisbal E, Garcia-Vázquez J, Gómez C, Macias A, Romero J, Sousa A, Englert U, Fenton D. The synthesis of zinc(II) complexes of 2-(2-mercaptophenyl)-iminophenol by electrochemical cleavage of a disulfide bond; the crystal structure of {(2, 2′-bipyridine)[2-(2-mercaptophenyl)iminophenoxy]}zinc(II). Inorganica Chim Acta 1993. [DOI: 10.1016/s0020-1693(00)82906-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
44
|
McAuliffe CA, Pritchard RG, Bermejo MR, Garcia-Vazquez A, Macias A, Sanmartín J, Romero J, Sousa A. Carbonatobis(1,10-phenanthroline)cobalt(III) perchlorate. Acta Crystallogr C 1992. [DOI: 10.1107/s0108270192002105] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
|
45
|
McAuliffe CA, Pritchard RG, Bermejo MR, Garcia-Vazquez A, Macias A, Sanmartín J, Romero J, Sousa A. Bis(2,2'-bipyridine)isocyanatocopper(II) perchlorate. Acta Crystallogr C 1992. [DOI: 10.1107/s010827019101449x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
|
46
|
Macias A, Casanova J, Morata G. Expression and regulation of the abd-A gene of Drosophila. Development 1990. [PMID: 1983117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We have developed a specific polyclonal antibody that recognizes the protein products of the abdominal-A (abd-A) gene, a member of the bithorax complex of Drosophila. The normal expression domain extends from parasegments 7 to 13, in good correspondence with previous genetic and molecular results. However, while the anterior border of expression is precisely demarcated by a parasegmental boundary, the posterior border does not coincide with a lineage boundary. Within the normal domain, the expression of abd-A shows intrametameric modulation; the amount of product is higher in posterior compartments and in the most anterior cells of the anterior compartments and then gradually decreases. We have examined the effect on abd-A expression of a number of mutations, some mapping within and others outside the abd-A transcription unit. Those mapping to the transcription unit eliminate or severely reduce the amount of abd-A antigen, while those mapping outside produce an abnormal distribution of abd-A protein. Finally, we show that the abd-A gene is down-regulated in part of the Abdominal-B (Abd-B) domain, precisely in those regions where the Abd-B gene is expressed at high levels.
Collapse
|
47
|
Busturia A, Vernos I, Macias A, Casanova J, Morata G. Different forms of Ultrabithorax proteins generated by alternative splicing are functionally equivalent. EMBO J 1990; 9:3551-5. [DOI: 10.1002/j.1460-2075.1990.tb07565.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
48
|
Busturia A, Vernos I, Macias A, Casanova J, Morata G. Different forms of Ultrabithorax proteins generated by alternative splicing are functionally equivalent. EMBO J 1990. [PMID: 1976510 PMCID: PMC552105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The Ubx gene of Drosophila normally produces several forms of Ubx proteins through alternative splicing of two microexons. We describe here two new viable Ubx mutations that show similar and almost wild-type adult phenotypes. Molecular characterization has shown that one of them, UbxMX17, is an inversion within the Ubx transcription unit including one of the microexons involved in alternative splicing. This results in mutant flies possessing a very abnormal array of Ubx proteins, probably including spliced forms not present in wild-type flies. Yet these protein products successfully substitute for the normal ones and allow virtually normal Ubx function. We argue that the different Ubx proteins are developmentally equivalent and that the slight mutant phenotype observed in UbxMX17 flies is not due to the abnormal set of Ubx proteins but to a breakpoint in a cis-regulatory region.
Collapse
|
49
|
Castro J, Castineiras A, Duran ML, Garcia-Vazquez JA, Macias A, Romero J, Sousa A. Direct electrochemical synthesis and crystal structure of the Zinc(II) Carbamato Complex {[N-methyl-N?-[(2-pyrrolyl)-methylene]ethylenediamine][N-methyl-N-[2-[(2-pyrrolato)-methyleneamino]ethyl]carbamato]}zinc(II). Z Anorg Allg Chem 1990. [DOI: 10.1002/zaac.19905860126] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
50
|
Magnusson I, Rosen AV, Nilsson R, Macias A, Perez R, Skoog L. Receptors for epidermal growth factor and sex steroid hormones in human colorectal carcinomas. Anticancer Res 1989; 9:299-301. [PMID: 2751256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Iodinated epidermal growth factor was used to identify its specific receptor in 32 human colorectal carcinomas. The receptor was found in 25% of the tumors with values between 6.9 - 104.0 fmoles/mg DNA. Receptors for estrogen and progesterone were detected in 45 and 25% of the tumors respectively. No correlation was observed between short term survival and content of receptors for sex steroid hormones. Four of the 8 patients with detectable levels of epidermal growth factor receptor had experienced relapse.
Collapse
|