26
|
Damiani G, Florio S, Budelli E, Bolla P, Caroli A. Single nucleotide polymorphisms (SNPs) within Bov-A2 SINE in the second intron of bovine and buffalo k-casein (CSN3) gene. Anim Genet 2000; 31:277-9. [PMID: 11086538 DOI: 10.1046/j.1365-2052.2000.00640.x] [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: 11/20/2022]
Abstract
The genetic polymorphism of an entire Bov-A2 element located in the second intron of the buffalo and bovine k-casein (CSN3) gene was investigated by amplification and sequencing of PCR products. Single nucleotide polymorphisms were detected. A PCR-RFLP method was developed to detect an A or G mutation at position 605 of bovine Bov-A2 element which creates a BfaI polymorphic site. The frequencies of the B allele, with the BfaI site, were for 0.275, 0.775, 0.750, 0.975, respectively, for Italian Holstein Friesian, Grey Alpine, Friuli Red Pied and Reggio bovine breeds. The mutation rate (substitutions and deletions/insertions per nucleotide site per year) was 2.5 x 10(-9) for Bov-A2 sequences in the second intron of CSN3. The comparison with other Bov-A2 elements suggests that this retroelement might be an important source of single nucleotide polymorphism for analysis of Bovidae genomes.
Collapse
|
27
|
Damiani G, Florio S, Budelli E, Bolla P, Caroli A. HpaII PCR-RFLP within a Bov-A2 element in the promoter of the bovine CYP21 (steroid 21-hydroxylase) gene. Anim Genet 2000; 31:154-5. [PMID: 10782233 DOI: 10.1046/j.1365-2052.2000.00609.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
28
|
Giannino D, Frugis G, Ticconi C, Florio S, Mele G, Santini L, Cozza R, Bitonti MB, Innocenti A, Mariotti D. Isolation and molecular characterisation of the gene encoding the cytoplasmic ribosomal protein S28 in Prunus persica [L.]] Batsch. MOLECULAR & GENERAL GENETICS : MGG 2000; 263:201-12. [PMID: 10778738 DOI: 10.1007/s004380051161] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
RT-PCR was performed on peach (Prunus persica [L.] Batsch) RNA to isolate cDNAs corresponding to transcripts which are differentially expressed in leaves borne on basal and apical shoots. A gene was identified which was more highly expressed in the leaves of basal shoots, and codes for the cytoplasmic protein S28 present in the small ribosomal subunit. The 5' leader regions of RPS28 mRNAs were found to harbour 8-11 pyrimidine tracts, which suggested similarities to regulatory stretches that control the translation of mRNAs for ribosomal proteins in animals. The peach S28 is encoded by two intron-containing genes, which are both transcribed in mitotically active tissues such as developing leaves and roots. In situ hybridisation to shoot vegetative apices and the measurement of nucleus/nucleolus ratios indicated that RPS28 expression was confined to areas undergoing active cell division. The mature RPS28 mRNA was detected as a single species in actively dividing tissues such as apical tips, developing leaves, vegetative buds, stamens, developing fruits and roots. In contrast, accumulation of a precursor RNA, in the presence of the mature product, was found in fully expanded leaves and subtending stems, while only the precursor species was detected in several late-stage tissues. This phenomenon suggested that expression of the mature RNA is controlled at the level of splicing and turnover of the precursor RNA. This is similar to the mode of regulation of ribosomal protein genes in animals.
Collapse
|
29
|
Pagnini U, Pacilio C, Florio S, Crispino A, Claudio PP, Giordano A, Pagnini G. Medroxyprogesterone acetate increases anthracyclines uptake in chronic lymphatic leukemia cells: role of nitric oxide and lipid peroxidation. Anticancer Res 2000; 20:33-42. [PMID: 10769632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Anthracyclines are one of the most used drugs in the therapy of several malignant tumors. Unfortunately, its use is still limited by their cardio-toxicity and by the presence of cancer cells resistant to these drugs. In the present study we evaluated the ability of a chemo-sensitizer agent, MPA (Medroxyprogesterone Acetate), to modify anthracyclines intranuclear uptake in normal leukocytes (NL) and in chronic lymphatic leukemia leukocytes (CLL). Moreover we evaluated the role of lipid peroxidation and nitric oxide (NO) production on antracyclines activity and on their combination with MPA. Our data show that MPA significantly increases anthracyclines uptake only in CLL cells and decreases anthracyclines induced lipid peroxidation.
Collapse
MESH Headings
- Antibiotics, Antineoplastic/chemistry
- Antibiotics, Antineoplastic/metabolism
- Antibiotics, Antineoplastic/pharmacology
- Antioxidants/pharmacology
- Biological Transport/drug effects
- Cell Nucleus/drug effects
- Cell Nucleus/metabolism
- Chemical Phenomena
- Chemistry, Physical
- Doxorubicin/chemistry
- Doxorubicin/metabolism
- Doxorubicin/pharmacology
- Drug Interactions
- Enzyme Inhibitors/pharmacology
- Humans
- Idarubicin/chemistry
- Idarubicin/metabolism
- Idarubicin/pharmacology
- Leukemia, Lymphocytic, Chronic, B-Cell/metabolism
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Leukocytes/drug effects
- Leukocytes/metabolism
- Lipid Peroxidation/drug effects
- Malondialdehyde/analysis
- Medroxyprogesterone Acetate/pharmacology
- Membrane Lipids/metabolism
- Neoplasm Proteins/antagonists & inhibitors
- Neoplastic Stem Cells/drug effects
- Neoplastic Stem Cells/metabolism
- Nitric Oxide/biosynthesis
- Nitric Oxide/physiology
- Nitric Oxide Synthase/antagonists & inhibitors
- Nitric Oxide Synthase Type I
- Nitroprusside/pharmacology
- Vitamin E/pharmacology
Collapse
|
30
|
Lombardi P, Florio S, Pagnini U, Crispino A, Avallone L. Ovarian function suppression with a GnRH analogue: D-ser(But[t])[6]-Arzgly[10]-LHRH (Goserelin) in hormone dependent canine mammary cancer. J Vet Pharmacol Ther 1999; 22:56-61. [PMID: 10211718 DOI: 10.1046/j.1365-2885.1999.00184.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Hormones and hormone level modifying substances have long been used to treat hormone-dependent tumours in humans. Recently, attempts have been made to use hormone manipulation regimens for the treatment of these tumours in veterinary medicine. The aim of the present study was to evaluate the activity of the luteinizing hormone-releasing hormone (LHRH)-agonist, D-ser(But[t])[6]-Azgly[10]-LHRH (Goserelin) in hormone-dependent mammary cancer in dogs. Eighteen female dogs with hormone-dependent mammary cancer (T2-T4, N0, M0 according to TNM clinical staging classification) were selected and allocated into two groups: nine dogs not treated with Goserelin (Group 1) referred to as control; and nine dogs treated with 60 microg/kg depot Goserelin every 21 days for 12 months (Group 2). Goserelin treatment decreased circulating levels of oestradiol and progesterone and reduced the size of mammary tumours; all the animals showed objective response (OR) to treatment after 3 months, and the relapse-free survival after 2 years was 88%. Haematology and blood chemistry parameters, measured every month from the beginning of treatment, as well as physical examination, showed that the drug was without toxic effects. This suggests that, at the dose administered, Goserelin blocks the hypothalamus-pituitary-ovary axis, and consequently can be useful to treat hormone-dependent mammary tumours in female dogs.
Collapse
|
31
|
Pacilio C, Florio S, Pagnini U, Crispino A, Claudio PP, Pacilio G, Pagnini G. Modification of membrane fluidity and depolarization by some anthracyclines in different cell lines. Anticancer Res 1998; 18:4027-34. [PMID: 9891441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
One of the major problems in cancer treatment is the progressive desensitization of cancer cells to chemotherapeutic drugs. Several hypotheses have been advanced to explain this property of cancer cells. In recent years different calcium channel blockers and other chemosensitizing agents like synthetic progestins have been used to revert drug resistance. In our experiments we evaluated the effects of Doxorubicin and Idarubicin on membrane fluidity and depolarization using normal lymphocytes, chronic lymphatic leukemia lymphocytes, normal breast and hormone dependent breast cancer cells and cardiomyocytes. The drugs were used alone or in combination with Verapamil and Medroxyprogesterone acetate. We showed that MPA enhances DOXO and IDA biochemical effects, acting not only on the membrane lipid bilayer, but also on ion channels. VERA instead does not seem to act through the same mechanism.
Collapse
|
32
|
Florio S, Ellis E, Frost DE. Persistent submandibular swelling after tooth extraction. J Oral Maxillofac Surg 1997; 55:390-7. [PMID: 9120703 DOI: 10.1016/s0278-2391(97)90133-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
33
|
Avallone L, Lombardi P, Florio S, d'Angelo A, Bogin E. Age-dependent variations of lactate dehydrogenase and creatine kinase activities in water buffalo calf serum. EUROPEAN JOURNAL OF CLINICAL CHEMISTRY AND CLINICAL BIOCHEMISTRY : JOURNAL OF THE FORUM OF EUROPEAN CLINICAL CHEMISTRY SOCIETIES 1996; 34:961-4. [PMID: 8986400 DOI: 10.1515/cclm.1996.34.12.961] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The electrophoretic patterns of the serum enzymes lactate dehydrogenase and creatine kinase from water buffalo calves are described. Differences in total activities as well as their relative distribution were seen at ages ranging from 1 to 10 weeks. While total lactate dehydrogenase activity increased by over 100%, total creatine kinase increased by almost 400%. The relative activities of lactate dehydrogenase 1 and 5 decreased with age. Lactate dehydrogenase 2 and 3 increased and lactate dehydrogenase 4 did not change. In relation to creatine kinase, the prevalent isoenzyme was creatine kinase-MM, but it's relative activity gradually decreased in comparison to the other two isoenzymes (creatine kinase-MB and creatine kinase-BB). Creatine kinase-BB was completely absent until the 3rd week of age. The percentage modifications of creatine kinase isoenzymes were correlated to age. The results suggest that isoenzymatic separation and characterization of lactate dehydrogenase and creatine kinase in relation to the various tissues can significantly contribute to the diagnosis of diseases which are linked to tissue damage.
Collapse
|
34
|
Florio S, Pagnini D, Crispino A, Avallone L, Lombardi P, Zuccaro S, Lanni C, Pelagalli A. Preliminary observations on the interference of antiblastic agents in membrane fluidity and leukocyte potential. J Chemother 1996; 8:399-402. [PMID: 8957722 DOI: 10.1179/joc.1996.8.5.399] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A major problem in cancer treatment is the progressive desensitization of the cancer cells to chemotherapeutic drugs. Several hypotheses have been advanced to explain this property of neoplastic cells. In recent years, some calcium-channel blockers have successfully been used to restore drug-sensitivity in previously resistant tumors. The presence of a correlation between ion channels and membrane fluidity is well known. In the ambit of our studies on the activity of several chemotherapeutic drugs on tumors, we have studied the variations in membrane depolarization and fluidity in some leukemic cells as a result of polychemotherapeutic treatments. Our results demonstrate that the membrane fluidity and K(+)-induced depolarization of some types of leukemic cells in patients untreated and treated with some chemotherapeutic agents, are altered significantly as compared to those of normal leukocytes.
Collapse
|
35
|
Di Carlo R, Meli R, Florio S, Mattace Raso G, Gualillo O, Pagnini G. The effect of age and sex on the expression of prolactin binding activity in the chicken bursa of Fabricius. Life Sci 1996; 59:1803-8. [PMID: 8937507 DOI: 10.1016/0024-3205(96)00523-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The binding of 125I-labeled prolactin (PRL) to membranes from the bursa of Fabricius of male and female chicks of different ages (15-30-45 and 60 days) was studied. In male chicks the binding was very low in 15 day-old animals and slightly increased in more aged animals. In female chicks the binding was more evident in young animals and decreased in 60 day-old animals. The binding showed a hormonal specificity and Scatchard analysis of the binding revealed the presence of binding sites with low capacity and high affinity. The presence of PRL receptors in the bursa of the chick, a structure that confers immunological competence to birds, gives further support to the involvement of the hormone in the immune processes.
Collapse
|
36
|
|
37
|
Florio S, Pagnini G, Pagnini U, Crispino A. Effect of cis-diamminedichloroplatinum (II) on rat thymocyte membrane potential. J Chemother 1996; 8:147-53. [PMID: 8708747 DOI: 10.1179/joc.1996.8.2.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The effect of cis-diamminedichloroplatinum (II) (cisDDP) on rat thymocytes has been investigated. Changes of anisotropy constant and depolarization of the cell membrane have been determined. The effect of cisDDP on the anisotropy constant has been observed on treated animal thymocytes but not on treated isolated cell membranes. CisDDP inhibits KCl-induced depolarization in isolated rat thymocytes. This inhibiting effect is still present at a concentration as low as 5 microM and it is dose-dependent with a 9.6 microM ED50. CisDDP also boosts the inhibition of the polarization caused by 10 microM tetrodotoxin (TTX) and 10 microM doxorubicin (DOXO). The replacement of Na+ by choline and the inactivation of Ca2+ by EGTA, in the incubation medium, reduces the inhibiting effect of cisDDP on the KCl-induced depolarization. These results suggest that cisDDP induced alterations could be due to the interference of cisDDP with the activity of the ionic channels pertaining to Na+ and Ca2+. This interference is stronger for Na+ channels.
Collapse
|
38
|
Florio S, Troisi L. Lithiation of 2-chloromethylpyridine: synthesis of 2-oxiranyl pyridines. Tetrahedron Lett 1994. [DOI: 10.1016/s0040-4039(00)76860-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
39
|
Florio S, Ingrosso G, Troisi L, Lucchini V. Lithiation of benzothiazolyl substituted epoxides and reactions with electrophiles. Tetrahedron Lett 1993. [DOI: 10.1016/s0040-4039(00)91796-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
40
|
|
41
|
Grasso AA, Reggio A, Marano P, Florio S, Scordino N, Cappello S, Nicoletti F. Epidemiological survey of multiple sclerosis in Catania city. ITALIAN JOURNAL OF NEUROLOGICAL SCIENCES 1992; 13:301-9. [PMID: 1601629 DOI: 10.1007/bf02223094] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The findings of an epidemiological survey of multiple sclerosis (MS) in the urban area of Catania reveal a new and in some respects original pattern of MS cases recorded on 31 December 1989 (prevalence day). They explain why special attention should be paid to patients residing in that area, which shows a remarkable upward trend of the MS prevalence rates calling for further study and for more targeted intervention in the fields of prevention, treatment and rehabilitation.
Collapse
|
42
|
Epifani E, Florio S, Ingrosso G, Ronzini L, Sgarra R, Troisi L. Regio- and stereo-chemistry of the coupling reaction of phenylsulphenyl-, phenylsulphinyl- and phenylsulphonyl-pentadienyl metals. Tetrahedron 1991. [DOI: 10.1016/s0040-4020(01)89751-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
43
|
Florio S, Ronzini L, Sgarra R. Regiochemistry and stereochemistry of the coupling of phenylthiopentadienyl metals with C-electrophiles. Tetrahedron Lett 1991. [DOI: 10.1016/s0040-4039(00)92022-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
44
|
Florio S, Ingrosso G, Ronzini L, Epifani E. Stereoselective synthesis of vinylbenzothiazoles and their epoxides. Tetrahedron 1991. [DOI: 10.1016/s0040-4020(01)86401-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
45
|
Florio S, Ronzini L, Sgarra R. Regiochemistry and stereochemistry of the coupling of phenylthiopentadienyl metals with C-electrophiles. Tetrahedron Lett 1990. [DOI: 10.1016/0040-4039(90)80219-c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
46
|
Florio S, Troisi L. Reaction of bistrimethylsilylperoxide with 2-benzothiazolylalkyllithiums: An unprecedented demethylation. Tetrahedron Lett 1989. [DOI: 10.1016/s0040-4039(01)80493-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
47
|
Epifani E, Florio S, Ingrosso G, Babudri F. Regioselective allylation and propargylation of pyrimidines. Tetrahedron 1989. [DOI: 10.1016/s0040-4020(01)80069-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
48
|
Epifani E, Florio S, Ingrosso G. Reversible allylic condensation of metalloallyls of heterocycles: counterion effect. Tetrahedron 1988. [DOI: 10.1016/s0040-4020(01)81444-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
49
|
Babudri F, Florio S. Reaction of Benzoxa(thia)zoles with Allenylmagnesium Bromide: Synthesis of Propargylbenzothiazolines and Dipropargylalkyl-o-aminophenols. SYNTHESIS-STUTTGART 1986. [DOI: 10.1055/s-1986-31727] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
50
|
Babudri F, Bartoli G, Ciminale F, Florio S, Ingrosso G. Ring opening of benzothiazoles with allylic grignard reagents. Tetrahedron Lett 1984. [DOI: 10.1016/s0040-4039(01)90109-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|