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Invernizzi R, De Fazio P, Iannone AM, Zambelli LM, Rastaldi MP, Ippoliti G, Ascari E. Immunocytochemical detection of factor XIII A--subunit in acute leukemia. Leuk Res 1992; 16:829-36. [PMID: 1382173 DOI: 10.1016/0145-2126(92)90163-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Factor XIII (FXIII) is a plasma pro-transglutaminase consisting of A and B subunits in a tetrameric structure. A cellular form of FXIII consisting exclusively of A subunits exists in platelets and monocytes: monocyte FXIII may be involved in connective tissue organization. To evaluate the expression and diagnostic significance of FXIII A subunit (FXIIIA) in acute leukemia, we performed an immunocytochemical study (PAP technique) with rabbit antiserum against FXIIIA on leukemic blasts of 48 cases. FXIIIA was detected only in myelomonocytic (M4), monocytic (M5) and megakaryocytic (M7) cases: in M4 and M5 samples the amount of blast cytoplasmic FXIIIA was closely correlated with the expression of monocyte-specific antigenic and cytochemical markers. Our data show immunocytochemical detection of FXIIIA to be useful for acute leukemia characterization.
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Tamburrini O, De Caridi A, De Sandro D, Grandinetti F, Della Sala M, Puca M, De Fazio P, De Francesco S, Amati A. [Anticipatory anxiety and interpersonal relations with the radiologist of patients undergoing diagnostic imaging]. LA RADIOLOGIA MEDICA 1992; 83:509-15. [PMID: 1631325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A pilot study has been carried out with the aim of evaluating the impact of updated imaging techniques (CT and MRI) versus "simple" examinations (tomography, X-rays, US, and nuclear medicine) on the anticipatory anxiety of the patients, as well as on the radiologist-patient relationship. Ninety consecutive patients undergoing diagnostic imaging modalities were examined according to the following schedule: 1) preliminary interview and anxiety assessment according to HRSA; 2) diagnostic imaging investigation, and 3) filling out an "ad hoc" questionnaire. The collected data have been divided into two groups: the "simple" group (52 patients submitted to X-rays, tomography, US, and nuclear medicine), and the "complex" group (38 patients submitted to CT and MRI). Anticipatory anxiety was observed in all subjects and attained psychopathological rates in more than half of them. Anxiety proved to be related to the completion of the examination rather than to its complexity. The questionnaire has pointed out the need for a more interactive relationship between radiologist and patient during diagnostic imaging examinations.
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28
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Piattelli M, Trisi P, Scogna G, De Fazio P, Piattelli A. [Condensation of gutta percha after McSpadden]. DENTAL CADMOS 1990; 58:52-9. [PMID: 2097188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The Authors have studied the efficacy of the sealing effect of thermomechanical compaction of guttapercha according to McSpadden with an in vitro analysis on undecalcified tooth sections and with a clinical evaluation of ten patients with periapical lesions. The analysis of the results has shown a good sealing capacity of the McSpadden technique.
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Invernizzi R, Cazzola M, De Fazio P, Rosti V, Ruggeri G, Arosio P. Immunocytochemical detection of ferritin in human bone marrow and peripheral blood cells using monoclonal antibodies specific for the H and L subunit. Br J Haematol 1990; 76:427-32. [PMID: 2261353 DOI: 10.1111/j.1365-2141.1990.tb06379.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We have used the monoclonal antibodies 2A4 (specific for the H subunit of human ferritin) and LO3 (specific for the L subunit) for immunocytochemical detection of ferritin in bone marrow and peripheral blood cells from normal subjects and patients with various haematological disorders. Formalin-fixed slides were stained by the immunoalkaline phosphatase procedure (APAAP). In normal subjects, ferritin could be found only in bone marrow smears and appeared to be largely confined to erythroid precursors and reticuloendothelial cells. The more immature erythroid precursors contained higher concentrations of cellular ferritin. Although evaluation could be only semiquantitative, erythroblast ferritin appeared to be more reactive with the monoclonal 2A4 (15 +/- 7% positive erythroblasts) than with the monoclonal LO3 (6 +/- 5% positive erythroblasts), indicating that H-type ferritin was predominant, particularly in proerythroblasts and basophilic erythroblasts. By contrast, the ferritin present in reticuloendothelial cells appeared to be predominantly of L-type. Patients with iron deficiency showed low levels of positive erythroblast, whereas the reverse was true in patients with transfusional iron overload. Intense positivity for reticuloendothelial cell ferritin was found in patients with anaemia of chronic disease. In myelodysplastic syndromes and acute myeloid leukaemia (AML), ferritin positivity was generally very strong at any stage of erythroblast development, particularly with the monoclonal antibody 2A4. Perls-positive perinuclear granules of ring sideroblasts were not stained, confirming that mitochondrial iron deposition is not in the form of ferritin. In AML and myelodysplastic syndromes with excess of blasts, ferritin could be detected also in immature myeloid cells. These data indicate that: (a) in normal conditions ferritin is mainly expressed in red cell precursors and reticuloendothelial cells, and this is in keeping with the peculiar role of these cells in iron metabolism; (b) abnormal cell ferritin contents can be observed in both iron overload and malignancy.
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Bergamaschi G, Carlo-Stella C, Cazzola M, De Fazio P, Pedrazzoli P, Peverali FA, Della Valle G. Tumor necrosis factor alpha down-regulates c-myc mRNA expression and induces in vitro monocytic differentiation in fresh blast cells from patients with acute myeloblastic leukemia. Leukemia 1990; 4:426-30. [PMID: 2359342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We have studied tumor necrosis factor alpha (TNF-alpha) for its capacity to induce differentiation and to modulate c-myc and c-fms protooncogene mRNA expression in fresh blasts from 10 patients with acute myeloblastic leukemia (AML). Bone marrow blast cells were grown in suspension cultures in the presence of 500 U/ml (62 ng/ml) of TNF-alpha for 7 days. Induction of differentiation was assessed by means of morphology, cytochemistry, immunophenotyping (CD11b, CD13, CD14, CD33), and nitroblue tetrazolium reduction. In all cases, exposure of leukemic blasts to TNF-alpha resulted in phenotypic changes consistent with induction of differentiation, although a marked variability in degree and type of response was observed. The majority of cases developed monocytic morphology and showed significant increases (chi 2 test, p less than 0.05) in phagocytic activity and/or expression of ANAE and myelomonocytic differentiation antigens (CD11b, CD14). TNF-alpha reduced c-myc mRNA level over a period of 24 hr in four of six cases studied: the two cases with no down-regulation were the least responsive in terms of myelomonocytic differentiation. These results confirm those obtained with leukemic cell lines, suggesting that TNF-alpha can induce differentiation of fresh AML blasts, mainly toward the monocytic lineage, and that induction of differentiation seems to be closely linked to down-regulation of c-myc mRNA expression over the first 24 hr rather than to attenuation of cellular proliferation per se.
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MESH Headings
- Bone Marrow/pathology
- Cell Differentiation
- Chi-Square Distribution
- Down-Regulation
- Gene Expression Regulation, Neoplastic
- Humans
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/pathology
- Monocytes/pathology
- Proto-Oncogenes
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Tumor Cells, Cultured/metabolism
- Tumor Cells, Cultured/pathology
- Tumor Necrosis Factor-alpha/pharmacology
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Invernizzi R, De Fazio P, Fenoglio C, Ippoliti G, Zambelli LM, Razzano M, Ascari E. 5' Nucleotidase in chronic B cell leukemias: a cytochemical and ultrastructural study. Am J Hematol 1990; 34:37-43. [PMID: 2327403 DOI: 10.1002/ajh.2830340109] [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: 12/31/2022]
Abstract
We studied by cytochemical means the distribution of 5' nucleotidase (5' NT), a purine degradative enzyme, in the circulating lymphocytes of 24 healthy donors and 41 cases of chronic lymphoid leukemias, classified according to morphological and immunological criteria. About half the normal circulating lymphocytes were 5'NT positive and exhibited variable degrees of enzyme activity. Among chronic B lymphocytic leukemias we found high percentages of positive cells only in the phenotypically more mature cases. Moreover all cases of hairy cell, follicular cell, lymphoplasmacytic, and plasma cell leukemia showed moderate or weak 5' NT reactivity. Also one case of chronic T lymphocytic leukemia, CD8 positive, was moderately positive, while another, with large granular lymphocyte morphology, was completely negative. Electron microscopy revealed a discontinuous, granular plasma membrane reaction pattern, varying in intensity from case to case. In conclusion, our results confirm the usefulness of the 5' NT cytochemical reaction for identification of lymphoid populations at different stages of maturation in chronic B cell disorders.
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MESH Headings
- 5'-Nucleotidase/metabolism
- Adult
- Aged
- Aged, 80 and over
- Female
- Histocytochemistry
- Humans
- Leukemia, Hairy Cell/enzymology
- Leukemia, Hairy Cell/pathology
- Leukemia, Lymphocytic, Chronic, B-Cell/classification
- Leukemia, Lymphocytic, Chronic, B-Cell/enzymology
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Lymphocytes/enzymology
- Lymphocytes/pathology
- Lymphocytes/ultrastructure
- Lymphoma, Non-Hodgkin/enzymology
- Lymphoma, Non-Hodgkin/pathology
- Male
- Microscopy, Electron
- Middle Aged
- Phenotype
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Cantù-Rajnoldi A, Invernizzi R, Biondi A, Banfi P, Zoia A, De Fazio P, Polli N. Biological and clinical features of acute lymphoblastic leukaemia with cytoplasmic granules or inclusions: description of eight cases. Br J Haematol 1989; 73:309-14. [PMID: 2605120 DOI: 10.1111/j.1365-2141.1989.tb07745.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We describe eight patients (four children and four adults) with an acute lymphoblastic leukaemia (ALL) with cytoplasmic granules or inclusions. The incidence of this variant of acute leukaemia in our whole series of patients with ALL is 1.8%. The granules or inclusions were usually positive for aspecific esterases (ANAE) and/or acid phosphatase, and the immunophenotype was in all cases typical of a CALLA positive B-lineage ALL (CD10+, CD19+ and/or CD24+, DR+, TdT+, anti-T-, anti-My-, SIg-). In one paediatric case, CD33 was unusually coexpressed. Ultrastructural investigations were performed in one case and demonstrated large granules containing vesicles, usually membrane bound, in the majority of blast cells. In the two cases analysed, Ig heavy chain gene rearrangement was detected. In this series of patients prognosis was poor since three never achieved a complete remission, four relapsed and only one is still in first continuous remission.
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Iacobelli L, De Fazio P, Rengo S, Ianniciello L. [Calcium oxide therapy of periapical lesions. A clinical contribution]. MINERVA STOMATOLOGICA 1989; 38:623-7. [PMID: 2770658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The use of calcium oxide as intermediate canal medication prior to definitive filling is described and followed by a report on the heating of periapical lesions in 6 particularly significant clinical cases.
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Invernizzi R, Paulli M, Rosso R, De Fazio P, Perugini O, Kindl S, Boveri E, Volpato L, Magrini U, Ascari E. Reactive hemophagocytosis in Ki-l positive large cell lymphoma: a case study. Haematologica 1989; 74:155-9. [PMID: 2545575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
A case of large cell lymphoma presenting with hemophagocytic syndrome is reported. The clinicopathological findings suggested a diagnosis of malignant histiocytosis, but on the basis of immunohistological studies Ki-l lymphoma was diagnosed. Neoplastic cells expressed activation antigens such as HLA-DR, IL 2R, T10 and Ki-l, and showed high proliferative activity, but were devoid of T and B cell markers. The high percentage of reactive macrophages found in the bone marrow and lymph node probably reflected the release of lymphokines by the tumor population. The patient was treated with aggressive chemotherapy and is in complete remission at 8 months from diagnosis.
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De Fazio P, Rengo S, Vairo F, Fortunato L. [Restoration with original fragments]. ATTUALITA DENTALE 1989; 5:28-32. [PMID: 2699565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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36
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Rengo S, Fortunato L, De Fazio P, Crea D. [A new anterior hybrid composite. Clinical evaluation]. DENTAL CADMOS 1988; 56:46-54. [PMID: 3078598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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37
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Invernizzi R, Nano R, Perugini O, De Fazio P, Nespoli L, Gerzeli G, Ascari E. Tetrahydrofolate dehydrogenase cytochemistry in acute lymphoblastic leukemia. Eur J Haematol Suppl 1988; 41:109-14. [PMID: 3165864 DOI: 10.1111/j.1600-0609.1988.tb00879.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We studied the cytochemical distribution of tetrahydrofolate dehydrogenase (FH4D), an enzyme involved in nucleic acid metabolism and thus in cell proliferation and differentiation processes, in bone marrow blasts from 37 cases of acute lymphoblastic leukemia (ALL), of whom 23 were pediatric patients. 26 cases were analyzed at onset, 11 in relapse. The ALL cases were immunologically classified as T (10), common (20), B (3) and null (4). In each subgroup the majority of lymphoblasts were positive, with heterogeneous positivity patterns and variable degrees of enzyme activity. Most T lymphoblasts were characterized by focal localization of FH4D, whereas in common blasts reactivity - usually less strong - was either focally localized or scattered with several fine granules. Finally, many B and null blasts showed diffuse positivity. A quantitative evaluation of FH4D activity using cytophotometric technique (Vickers M86) demonstrated higher degrees of reactivity in leukemic blasts than in normal lymphocytes. Moreover, slightly different levels of reactivity were observed in relation to immunological phenotype, age and stage of the disease. Therefore we think that FH4D is a useful additional marker for ALL characterization.
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Rengo S, Mignogna A, De Fazio P, Simeone M, Cola E. [Oral pemphigus. Diagnostic problems]. MINERVA STOMATOLOGICA 1988; 37:461-4. [PMID: 3173312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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39
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Rengo S, De Fazio P, Crea D, Fortunato L. [Treatment of fluorosis using composite veneers]. STOMATOLOGIA MEDITERRANEA : SM 1988; 8:5-11. [PMID: 3076980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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40
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Amato M, De Fazio P, Sbordone R, Riccitiello F. [Use of a new calcium hydroxide-based cement in the pulpotomy technic]. MINERVA STOMATOLOGICA 1987; 36:941-5. [PMID: 3482304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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41
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Manfredi C, Carpentieri R, De Angeli MF, Rengo S, De Fazio P. [Clinico-statistical characteristics of a school-age population sample. III. The incidence of dental pathology and dentofacial anomalies]. MINERVA STOMATOLOGICA 1987; 36:645-60. [PMID: 3478569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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42
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Manfredi C, De Fazio P, Rengo S, Perciavalle C, Buccelli C. [Osteomyelitis of the jaws. Documentation of the outcome of a clinical case]. DENTAL CADMOS 1987; 55:55-9. [PMID: 3484259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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43
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Manfredi C, Carpentieri R, De Angeli MF, Rengo S, De Fazio P. [Clinico-statistical aspects of a school-age population sample. II. The period of the eruption and change in canines, premolars and 2d permanent molars]. MINERVA STOMATOLOGICA 1987; 36:427-32. [PMID: 3476831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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44
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Manfredi C, Carpentieri R, De Angeli MF, Rengo S, De Fazio P. [Clinico-statistical aspects of a school-age population sample. I. The period of the eruption and change of the 1st molars and permanent incisors]. MINERVA STOMATOLOGICA 1987; 36:323-8. [PMID: 3476820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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45
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Ingenito A, Rengo S, Mignogna A, De Fazio P. [Hydron, a material for root canal obturation. An in vitro evaluation]. MINERVA STOMATOLOGICA 1987; 36:253-8. [PMID: 3474503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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46
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De Fazio P, Rengo S, Vairo F, Cavalcanti M, Coppa A. [Evaluation using radioisotopes (I125) of the airtightness of root canal obturation obtained with lateral and vertical condensation technics]. MINERVA STOMATOLOGICA 1987; 36:175-8. [PMID: 3472057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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47
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De Fazio P, Rengo S, Vairo F, Angelillo IF. [Preparation for root canal therapy using a new composite for posterior teeth]. DENTAL CADMOS 1987; 55:101-3. [PMID: 3477483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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48
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D'Auria T, Santoro S, D'Amico A, Rengo C, Rengo S, De Fazio P. [Dilatation of the salivary ducts: radiologic findings]. ARCHIVIO STOMATOLOGICO 1987; 28:29-43. [PMID: 3484221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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49
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Riccitiello F, Carlomagno F, Ingenito A, De Fazio P. [New method of regluing a crown fragment on an endodontically treated tooth]. MINERVA STOMATOLOGICA 1986; 35:1057-63. [PMID: 3468330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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50
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De Fazio P, Amato M, Rengo S, Sammartino G. [Root resorption. Its etiopathogenesis, diagnosis and therapeutic outlook]. MINERVA STOMATOLOGICA 1986; 35:1013-9. [PMID: 3468324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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