1
|
Zammarchi L, Colao MG, Mantella A, Capobianco T, Mazzarelli G, Ciccone N, Tekle Kiros S, Mantengoli E, Rossolini GM, Bartoloni A. Evaluation of a new rapid fluorescence immunoassay for the diagnosis of dengue and Zika virus infection. J Clin Virol 2019; 112:34-39. [PMID: 30738366 DOI: 10.1016/j.jcv.2019.01.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/26/2019] [Accepted: 01/28/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND Dengue (DENV) and Zika virus (ZIKV) are important mosquito-transmitted viruses. OBJECTIVES To investigate the performance of Standard F, Fluorescence Immunoassay (FIA, SD Biosensor Inc., Suwon, South Korea) providing results in 15 min to detect DENV IgG, IgM and NS1Ag, and ZIKV IgG, IgM, and Ag. STUDY DESIGN A well-characterized panel of patient samples (11 acute DENV, 11 acute ZIKV, 10 past DENV, 10 past ZIKV infection, 36 with other conditions) were tested with the FIA test. RESULTS In acute DENV infection, the combination of FIA-NS1Ag and/or IgM positivity showed a sensitivity of 100%. In past DENV, FIA-IgG test showed a sensitivity of 70%. Specificity of FIA-DENV NS1Ag, IgG, and IgM was 87.5%, 83.5%, and 91.7%, respectively. The sensitivity of FIA-ZIKV IgM and FIA-ZIKV Ag, in confirmed acute infection, was 72.7% and 9.1%, respectively. FIA-ZIKV Ag did not improve the sensitivity in detecting acute ZIKV infection, being positive only in one IgM positive sample. In past ZIKV infection (32-183 days after symptom onset), FIA-ZIKV IgG and IgM showed a sensitivity of 40% and 80% respectively, generating an overall 90% sensitivity. Specificity of FIA-ZIKV Ag, IgM, and IgG was 92.6%, 100%, and 97%, respectively. CONCLUSION FIA test, a rapid and easy to perform assay, showed high sensitivity to detect acute DENV infection, but lower in acute ZIKV infection. In past ZIKV infections, the best performance of FIA test is obtained by combining detection of IgG and IgM.
Collapse
Affiliation(s)
- Lorenzo Zammarchi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy; Infectious and Tropical Diseases Unit, Careggi University and Hospital, Florence, Italy; Referral Center for Tropical Diseases of Tuscany, Infectious and Tropical Diseases Unit, Careggi University Hospital, Florence, Italy
| | - Maria Grazia Colao
- Clinical Microbiology and Virology Unit, Careggi University and Hospital, Florence, Italy
| | - Antonia Mantella
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy; Referral Center for Tropical Diseases of Tuscany, Infectious and Tropical Diseases Unit, Careggi University Hospital, Florence, Italy
| | - Teresa Capobianco
- Clinical Microbiology and Virology Unit, Careggi University and Hospital, Florence, Italy
| | - Gianna Mazzarelli
- Clinical Microbiology and Virology Unit, Careggi University and Hospital, Florence, Italy
| | - Nunziata Ciccone
- Clinical Microbiology and Virology Unit, Careggi University and Hospital, Florence, Italy
| | - Seble Tekle Kiros
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Elisabetta Mantengoli
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Gian Maria Rossolini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy; Clinical Microbiology and Virology Unit, Careggi University and Hospital, Florence, Italy
| | - Alessandro Bartoloni
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy; Infectious and Tropical Diseases Unit, Careggi University and Hospital, Florence, Italy; Referral Center for Tropical Diseases of Tuscany, Infectious and Tropical Diseases Unit, Careggi University Hospital, Florence, Italy.
| |
Collapse
|
2
|
Pei XH, Chan HL, Zhang L, Wang C, Robbins DJ, Capobianco T, Bai F. Abstract P2-08-01: Loss of function of Brca1 or Gata3 induces basal-like breast cancer. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p2-08-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
BACKGROUND:
Breast cancer is mainly divided into estrogen receptor (ER)-positive luminal and ER-negative basal-like tumors. Luminal-type tumors are associated with better survival and respond to hormone therapies whereas basal-like tumors are more aggressive and associated with a poor prognosis. Mammary epithelia are mainly composed of luminal and basal cells that are maintained by luminal and basal progenitors, respectively. The maintenance of luminal cell fate is orchestrated by networks of transcription factors, including BRCA1 and GATA3. Functional loss of BRCA1 by germline or somatic mutation or by promoter methylation is associated with more than one third of basal-like breast cancers. GATA3 expression is reduced in basal-like breast cancers and cancers that metastasize. Overexpression of GATA3 in cancer cells inhibits tumor formation. Deletion of Brca1 or Gata3 in mice results in early lethality or growth defects. How BRCA1 and GATA3 suppress breast cancer remains elusive.
METHODS:
We generated mice lacking Brca1 or Gata3 in mammary epithelia. Due to the proliferative defects and induction of p18Ink4c (p18), an inhibitor of CDK4/6, in mammary epithelial cells of these mice, we then generated mice lacking Brca1 or Gata3 in p18 deficient mammary epithelia. We determined spontaneous mammary tumor development in mutant mice and the mechanisms underlying the role of Brca1 and Gata3 in suppressing tumorigenesis and progression.
RESULTS:
Depletion of Brca1 or Gata3 led to growth defects of mammary epithelial cells, which was rescued by loss of p18. Depletion of Brca1 or Gata3 in a p18 null background induced heterogeneous mammary tumors with less luminal and more basal-like features and accelerated metastasis. Deletion of Brca1 eliminated Gata3 expression in human and mouse mammary tissues and cells. How Brca1 interacts with Gata3 to control mammary tumor development and progression is currently under investigation.
CONCLUSION: Our results suggest that loss of function of either Brca1 or Gata3 induces basal-like mammary tumors in p18 deficient background.
Citation Format: Pei X-H, Chan HL, Zhang L, Wang C, Robbins DJ, Capobianco T, Bai F. Loss of function of Brca1 or Gata3 induces basal-like breast cancer [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P2-08-01.
Collapse
Affiliation(s)
- X-H Pei
- Dewitt Daughtry Family, University of Miami, Miami, FL; Lanzhou University, Lanzhou, China; Xi'an Jiaotong University Health Science Center, Xian, China; Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL
| | - HL Chan
- Dewitt Daughtry Family, University of Miami, Miami, FL; Lanzhou University, Lanzhou, China; Xi'an Jiaotong University Health Science Center, Xian, China; Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL
| | - L Zhang
- Dewitt Daughtry Family, University of Miami, Miami, FL; Lanzhou University, Lanzhou, China; Xi'an Jiaotong University Health Science Center, Xian, China; Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL
| | - C Wang
- Dewitt Daughtry Family, University of Miami, Miami, FL; Lanzhou University, Lanzhou, China; Xi'an Jiaotong University Health Science Center, Xian, China; Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL
| | - DJ Robbins
- Dewitt Daughtry Family, University of Miami, Miami, FL; Lanzhou University, Lanzhou, China; Xi'an Jiaotong University Health Science Center, Xian, China; Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL
| | - T Capobianco
- Dewitt Daughtry Family, University of Miami, Miami, FL; Lanzhou University, Lanzhou, China; Xi'an Jiaotong University Health Science Center, Xian, China; Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL
| | - F Bai
- Dewitt Daughtry Family, University of Miami, Miami, FL; Lanzhou University, Lanzhou, China; Xi'an Jiaotong University Health Science Center, Xian, China; Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL
| |
Collapse
|
3
|
Zammarchi L, Fortuna C, Venturi G, Rinaldi F, Capobianco T, Remoli ME, Rossolini GM, Rezza G, Bartoloni A. Recent Chikungunya Virus Infection in 2 Travelers Returning from Mogadishu, Somalia, to Italy, 2016. Emerg Infect Dis 2016; 22:2025-2027. [PMID: 27513985 PMCID: PMC5088032 DOI: 10.3201/eid2211.161225] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
|
4
|
Colao M, Capobianco T, Mazzarelli G, Parri F. VALUTAZIONE QUANTITATIVA DI HIV RNA CON IL SISTEMA NUCLISENS EASYQ HIV-1 E CORRELAZIONE CON VERSANT HIV -1 (bDNA). Microbiol Med 2006. [DOI: 10.4081/mm.2006.3211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
5
|
Torre AL, Biadaioli R, Capobianco T, Colao MG, Monti M, Pulli F, Visioli CB, Zignego AL, Rubaltelli F. Vertical transmission of HCV. Acta Obstet Gynecol Scand 2003. [DOI: 10.1034/j.1600-0412.1998.770903.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
6
|
La Torre A, Biadaioli R, Capobianco T, Colao MG, Monti M, Pulli F, Visioli CB, Zignego AL, Rubaltelli F. Vertical transmission of HCV. Acta Obstet Gynecol Scand 1998; 77:889-92. [PMID: 9808375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
BACKGROUND Knowledge about vertical transmission of HCV is still limited. In this study we followed up the virological status of a series of offspring born to anti-HCV positive, anti-HIV negative mothers. METHODS Between January 1993 and January 1995, 5000 consecutive, anti-HIV negative pregnant women were screened for anti-HCV (ELISA III) and all positive samples were confirmed by RIBA III and analyzed for HCV-RNA by polymerase chain reaction (PCR). Babies born to anti-HCV positive mothers were followed from birth to two years by testing for ALT levels, anti-HCV antibodies and HCV-RNA. RESULTS Of 5000 mothers 80 (1.6%) were anti-HCV positive (ELISA III) and RIBA III positive. Of these, 56 (70%) were HCV-RNA positive. We examined 80 babies, born to anti-HCV positive mothers: 56 with HCV-RNA positive mothers and 24 with HCV-RNA negative mothers. Two babies (3.6%) of 56 were anti-HCV and HCV-RNA positive, with normal liver function tests. Seventy-eight babies (97.5%) of 80 (54 with HCV-RNA positive mothers and 24 with HCV-RNA negative mothers) were HCV-RNA negative, with normal liver function tests and detectable levels of anti-HCV antibodies that gradually disappeared between 8-12 months. CONCLUSION Mother-to-infant transmission of HCV is possible only in the case of HCV-RNA positive mothers. In our study the rate of transmission is 3.6%, (2/56 babies with HCV-RNA positive mothers). HCV transmission may occur without evident association with breast-feeding or vaginal delivery.
Collapse
Affiliation(s)
- A La Torre
- Department of Neonatology, Careggi Hospital, University of Florence, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Torre A, Biadaioli R, Capobianco T, Colao M, Monti M, Pulli F, Visioli C, Zignego AL, Rubaltelli F. Vertical transmission of HCV. Acta Obstet Gynecol Scand 1998. [DOI: 10.1080/j.1600-0412.1998.770903.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
8
|
Miliani A, Bergesio F, Salvadori M, Amantini A, Macucci M, Arbustini E, Becucci A, Sodi A, Zuccarini S, Menicucci A, Torricelli F, Capobianco T, Di Lollo S, Piazza E, Gemmi F, Cozzolino F, Merlini G. Familial AL-amyloidosis in three Italian siblings. Haematologica 1996; 81:105-9. [PMID: 8641636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND AND METHODS Familial occurrence of immunoglobulin-related (AL) amyloidosis has occasionally been reported. In this work we describe the concomitance of systemic amyloidosis and monoclonal gammopathy (one case of Waldenström's macroglobulinemia and two cases without multiple myeloma or related diseases) in three Italian siblings, two males and one female. RESULTS AND CONCLUSIONS All of them showed a common pattern of polyneuropathy to different degrees; two presented a sicca syndrome and one also suffered from nephropathy. Two of them showed the same HLA typing with the same light chain type (k), but had different presenting symptoms. Polyneuropathy and a history of peptic disease in two cases was suggestive of type III familial amyloidotic polyneuropathy (FAP) occurring in the setting of a familial monoclonal component. However, immunohistochemical studies on different tissue specimens using anti-apolipoprotein A1 and anti-transthyretin antibodies were negative. Further screening of DNA samples for transthyretin (TTR) gene mutations was also negative. Clinical and laboratory investigations ruled out reactive or senile amyloidosis and immunohistochemical studies with anti-light chain antibodies on amyloidotic tissue specimens were positive. As a consequence, this family represents a new case of familial AL-amyloidosis.
Collapse
Affiliation(s)
- A Miliani
- Institute of Internal Medicine IV, University of Firenze, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Dolara P, Salvadori M, Capobianco T, Torricelli F. Sister-chromatid exchanges in human lymphocytes induced by dimethoate, omethoate, deltamethrin, benomyl and their mixture. Mutat Res 1992; 283:113-8. [PMID: 1381487 DOI: 10.1016/0165-7992(92)90142-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Dimethoate and omethoate, two common organophosphorus insecticides, induced a dose-related increase in the frequency of sister-chromatid exchanges (SCEs) in human lymphocytes in vitro (P of the regression lines less than 0.01). Two other common pesticides, the pyrethroid insecticide deltamethrin and the systemic fungicide benomyl, induced a modest increase in SCEs which bordered on statistical significance (P = 0.053 and 0.055, respectively). Mixtures of the four pesticides at total concentrations of 41.5 and 83 micrograms/ml (composed of 43% dimethoate, 43% omethoate, 12% deltamethrin and 1.2% benomyl) induced a dose-dependent increase in SCEs (P less than 0.01). The effects of these mixtures of pesticides were variable using lymphocytes from different individuals, although these differences did not attain statistical significance. Moreover, low concentrations of the four pesticides that did not increase SCEs significantly when tested alone, were positive for SCE induction when tested as a mixture. The experiments show that sub-threshold doses of pesticides may increase SCEs when present in a mixture.
Collapse
Affiliation(s)
- P Dolara
- Department of Pharmacology and Toxicology, University of Florence, Italy
| | | | | | | |
Collapse
|