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Samela P, Tosi V, Cervini A, Bocian M, Buján M, Pierini A. Síndrome del nevo basocelular: experiencia en un hospital pediátrico. Actas Dermo-Sifiliográficas 2013. [DOI: 10.1016/j.ad.2012.04.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Samela PC, Tosi V, Cervini AB, Bocian M, Buján MM, Pierini AM. Nevoid basal cell carcinoma syndrome: our experience in a pediatric hospital. Actas Dermosifiliogr 2013; 104:426-33. [PMID: 23669591 DOI: 10.1016/j.adengl.2013.04.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Accepted: 04/20/2012] [Indexed: 10/26/2022] Open
Abstract
Nevoid basal cell carcinoma (BCC) syndrome, or Gorlin syndrome, is a rare autosomal dominant disorder associated with mutations in the patched 1 gene, PTCH1. It is characterized by the presence of multiple BCCs in association with disorders affecting the bones, the skin, the eyes, and the nervous system. We describe 6 cases of nevoid BCC syndrome evaluated in our department. Palmoplantar pitting was observed in all 6 patients, multiple BCCs in 5 patients (83%), skeletal anomalies in 3 patients (50%), and odontogenic keratocysts in 1 patient (17%). We would like to stress the importance of early diagnosis and treatment in nevoid BCC syndrome and the need for continuous, long-term follow-up by a multidisciplinary team.
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Affiliation(s)
- P C Samela
- Servicio de Dermatología, Hospital de Pediatría Dr. Prof. Juan P. Garrahan, Buenos Aires, Argentina.
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Lanoel A, Tosi V, Bocian M, Lubieniecki F, Poblete S, García H, Pierini A. Perianal Ulcers on a Segmental Hemangioma With Minimal or Arrested Growth. Actas Dermo-Sifiliográficas (English Edition) 2012. [DOI: 10.1016/j.adengl.2011.07.010] [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: 10/27/2022] Open
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Lanoel A, Tosi V, Bocian M, Lubieniecki F, Poblete S, García H, Pierini A. Úlceras perianales sobre hemangioma con crecimiento mínimo o detenido segmentario. Actas Dermo-Sifiliográficas 2012; 103:820-3. [DOI: 10.1016/j.ad.2011.07.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Revised: 07/08/2011] [Accepted: 07/29/2011] [Indexed: 11/26/2022] Open
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Mannella P, Tosi V, Russo E, Zullino S, Pancetti F, Gompal S, Polak K, Genazzani AR, Genazzani AD, Simoncini T. Effects of red clover extracts on breast cancer cell migration and invasion. Gynecol Endocrinol 2012; 28:29-33. [PMID: 21615235 DOI: 10.3109/09513590.2011.579660] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Postmenopausal hormone therapy is associated with increased incidence of breast cancer. For this reason alternative therapeutic options to treat menopausal symptoms have been developed. Red clover extracts (RCE) are rich in isoflavones, particularly genistein and daidzein and they have been proved to be effective in reducing vasomotor symptoms in a number of studies. Due to their partial selectivity of action on estrogen receptors (ERs) these compounds have been claimed to be safer on the breast. In this article, we explored the action of RCE on motility and invasion of ER positive breast cancer cells and we partially characterized the signaling mechanisms. The principal isoflavones contained in RCE acted as weak estrogenic compounds when administered alone. However, when provided in association with physiological amounts of estradiol, RCE acted as estrogen antagonist on remodeling of actin cytoskeleton that are requested to enact cell movement and with related modifications of the activity of actin-binding proteins, such as moesin. These results offer novel information on the molecular actions of isoflavones contained in red clover on breast cancer cells, supporting a possible action of these molecules as natural selective estrogen receptor modulators in the presence of physiological amounts of estrogens.
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Affiliation(s)
- Paolo Mannella
- Department of Reproductive Medicine and Child Development , Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), University of Pisa, Pisa 56100, Italy.
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Cervini AB, Tosi V, Kim SH, Bocian M, Chantada G, Nousari C, Carballo OG, Pierini AM. [Paraneoplastic pemphigus or paraneoplastic autoimmune multiorgan syndrome. Report of 2 cases in children and a review of the literature]. Actas Dermosifiliogr 2010; 101:879-886. [PMID: 21159264] [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: 05/30/2023] Open
Abstract
Paraneoplastic pemphigus is an autoimmune blistering disease associated with an occult or previously diagnosed tumor. Its clinical, histological, and immunological features have been clearly defined. It is characterized by the presence of polymorphic skin lesions and by erosions of the oral and genital mucosas that are refractory to conventional treatments. The histology can be variable and includes acantholysis or lichenoid dermatitis. Circulating autoantibodies are a constant feature and confirm the diagnosis. We describe 2 girls with paraneoplastic pemphigus associated with Hodgkin lymphoma in one and Castelman disease in the other. Both children had oral and genital lesions that did not respond to conventional treatments. Biopsy revealed acantholysis in one and a lichenoid reaction in the other, and immunoassays confirmed the diagnosis. Chemotherapeutic treatment of the underlying disease was performed in both cases, together with high-dose corticosteroids for the skin and mucosal lesions. Both patients died due to respiratory failure. We suggest that paraneoplastic pemphigus, although rare in childhood and adolescence, should be included in the differential diagnosis of periorificial erosive dermatitis; this may assist in the detection of an occult neoplasm.
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Affiliation(s)
- A B Cervini
- Servicio de Dermatología, Hospital de Pediatría Dr. Prof. Juan P. Garrahan, Buenos Aires, Argentina
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Cervini A, Tosi V, Kim S, Bocian M, Chantada G, Nousari C, Carballo O, Pierini A. Pénfigo paraneoplásico/síndrome multiorgánico autoinmune paraneoplásico. Presentación de dos casos en la edad infantil. Revisión de la literatura. Actas Dermo-Sifiliográficas 2010. [DOI: 10.1016/j.ad.2010.06.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Flamini MI, Fu XD, Sanchez AM, Giretti MS, Garibaldi S, Goglia L, Pisaneschi S, Tosi V, Genazzani AR, Simoncini T. Effects of raloxifene on breast cancer cell migration and invasion through the actin cytoskeleton. J Cell Mol Med 2010; 13:2396-2407. [PMID: 18798864 DOI: 10.1111/j.1582-4934.2008.00505.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Raloxifene (RAL) is a selective oestrogen receptor modulator (SERM) approved for the prevention and treatment of osteoporosis and for the prevention of breast cancer in postmenopausal women. However, little is known on the effects of this SERM on breast cancer cell metastasis, which is the main cause of morbidity and death. Cell movement is critical for local progression and distant metastasis of cancer cells. These processes rely on the dynamic control of the actin cytoskeleton and of cell membrane morphology. The aim of the present study was to characterize the effects of RAL or of 17beta-estradiol (E2) plus RAL on oestrogen receptor (ER) positive T47-D breast cancer cell cytoskeletal remodelling, migration and invasion. Our findings show that, when given alone, RAL induces a weak actin cytoskeleton remodelling in breast cancer cells, with the formation of specialized cell membrane structures implicated in cell motility. However, in the presence of physiological amounts of estradiol, which potently drives breast cancer cell cytoskeletal remodelling and motility, RAL displays a powerful inhibitory effect on oestrogen-promoted cell migration and invasion. These actions are plaid through an interference of RAL with an extra-nuclear signalling cascade involving G proteins and the RhoA-associated kinase, ROCK-2, linked to the recruitment of the cytoskeletal controller, moesin. Hence, in the presence of estradiol, RAL acts as an ER antagonist. These results highlight a novel mechanism of action of the SERM raloxifene that might be important for the interference of breast cancer progression or metastasis induced by oestrogens in postmenopausal women.
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Affiliation(s)
- Marina Ines Flamini
- Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), Department of Reproductive Medicine and Child Development, University of Pisa, Pisa, Italy
| | - Xiao-Dong Fu
- Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), Department of Reproductive Medicine and Child Development, University of Pisa, Pisa, Italy
| | - Angel Matias Sanchez
- Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), Department of Reproductive Medicine and Child Development, University of Pisa, Pisa, Italy
| | - Maria Silvia Giretti
- Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), Department of Reproductive Medicine and Child Development, University of Pisa, Pisa, Italy
| | - Silvia Garibaldi
- Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), Department of Reproductive Medicine and Child Development, University of Pisa, Pisa, Italy
| | - Lorenzo Goglia
- Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), Department of Reproductive Medicine and Child Development, University of Pisa, Pisa, Italy
| | - Silvia Pisaneschi
- Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), Department of Reproductive Medicine and Child Development, University of Pisa, Pisa, Italy
| | - Veronica Tosi
- Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), Department of Reproductive Medicine and Child Development, University of Pisa, Pisa, Italy
| | - Andrea Riccardo Genazzani
- Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), Department of Reproductive Medicine and Child Development, University of Pisa, Pisa, Italy
| | - Tommaso Simoncini
- Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), Department of Reproductive Medicine and Child Development, University of Pisa, Pisa, Italy
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Goglia L, Tosi V, Sanchez AM, Flamini MI, Fu XD, Zullino S, Genazzani AR, Simoncini T. Endothelial regulation of eNOS, PAI-1 and t-PA by testosterone and dihydrotestosterone in vitro and in vivo. Mol Hum Reprod 2010; 16:761-9. [DOI: 10.1093/molehr/gaq049] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Fu XD, Goglia L, Sanchez AM, Flamini M, Giretti MS, Tosi V, Genazzani AR, Simoncini T. Progesterone receptor enhances breast cancer cell motility and invasion via extranuclear activation of focal adhesion kinase. Endocr Relat Cancer 2010; 17:431-43. [PMID: 20233709 DOI: 10.1677/erc-09-0258] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
While progesterone plays multiple roles in the process of breast development and differentiation, its role in breast cancer is less understood. We have shown previously that progestins stimulate breast cancer cell migration and invasion because of the activation of rapid signaling cascades leading to modifications in the actin cytoskeleton and cell membrane that are required for cell movement. In this study, we have investigated the effects of progesterone on the formation of focal adhesion (FA) complexes, which provide anchoring sites for cell attachment to the extracellular matrix during cell movement and invasion. In T47-D breast cancer cells, progesterone rapidly enhances FA kinase (FAK) phosphorylation at Tyr(397) in a time- and concentration-dependent manner. As a result, exposure to progesterone leads to increased formation of FA complexes within specialized cell membrane protrusions. The cascade of events required for this phenomenon involves progesterone receptor interaction with the tyrosine kinase c-Src, which activates the phosphatidylinositol-3-kinase/Akt pathway and the small GTPase RhoA/Rho-associated kinase complex. In the presence of progesterone, T47-D breast cancer cells display enhanced horizontal migration and invasion of three-dimensional matrices, which is reversed by small interfering RNAs abrogating FAK. In conclusion, progesterone promotes breast cancer cell movement and invasion by facilitating the formation of FA complexes via the rapid regulation of FAK. These results provide novel mechanistic views on the effects of progesterone on breast cancer progression, and may in the future be helpful to develop new strategies for the treatment of endocrine-sensitive breast cancers.
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Affiliation(s)
- Xiao-Dong Fu
- Department of Reproductive Medicine and Child Development, University of Pisa, Italy
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Cervini A, Tosi V, Kim S, Bocian M, Chantada G, Nousari C, Carballo O, Pierini A. Paraneoplastic Pemphigus or Paraneoplastic Autoimmune Multiorgan Syndrome. Report of 2 Cases in Children and a Review of the Literature. Actas Dermo-Sifiliográficas (English Edition) 2010. [DOI: 10.1016/s1578-2190(10)70735-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Flamini MI, Sanchez AM, Goglia L, Tosi V, Genazzani AR, Simoncini T. Differential actions of estrogen and SERMs in regulation of the actin cytoskeleton of endometrial cells. Mol Hum Reprod 2009; 15:675-85. [PMID: 19541800 DOI: 10.1093/molehr/gap045] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Estrogen and selective estrogen receptor modulators (SERMs) differentially impact endometrial cell function, however, the biological basis of these differences is not established. Deregulated cell adhesion to the extracellular matrix, cell movement and invasion are related to endometrial disorders, such as endometriosis or endometrial cancer. Remodeling of the actin cytoskeleton is required to achieve cell adhesion and movement. Estrogen receptor (ER) regulates actin and cell membrane remodeling through extra-nuclear signaling cascades. In this article, we show that administration of 17beta-estradiol (E2) and tamoxifen (TAM) to immortalized Ishikawa endometrial cells or to human endometrial stromal cells (ESC) results in remodeling of actin fibers and cell membrane. This is linked to rapid phosphorylation on Thr(558) of the actin-binding protein moesin and enhanced migration and invasion of normal and Ishikawa cells. Raloxifene (RAL) does not result in moesin activation or actin remodeling. When endometrial cells are exposed to E2 in the presence of TAM or RAL, both SERMs interfere with the recruitment of moesin, with the remodeling of the cytoskeleton, and with cell movement and migration induced by E2. The differential actions of E2, TAM and RAL are linked to a distinct modulation of the extra-nuclear signaling of ER to G proteins and to the Rho-associated kinase. These findings increase our understanding of the actions of estrogen and SERMs in endometrial cells and highlight potential molecular targets to interfere with the estrogen-related altered cell adhesion encountered in endometrial disorders.
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Affiliation(s)
- M I Flamini
- Molecular and Cellular Gynecological Endocrinology Laboratory, Department of Reproductive Medicine and Child Development, Division of Obstetrics and Gynecology, University of Pisa, Via Roma, 57, 56100 Pisa, Italy
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Abstract
Eye movements were recorded in 10 adult subjects during the viewing of fiction and nonfiction films. Individual differences in scan paths for fiction films were found to be relatively small. Generally, eyes concentrated on the screen center when looking at characters and objects in rapid motion. Scan paths through the screen were observed in special cases, for example, in the case of a dialogue between two characters. No differences emerged in scan paths for the same clip presented in black-and-white and color versions. Results are relevant for both filmmaking and research on perceptual and cognitive strategies involved in processing motion pictures.
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Affiliation(s)
- V Tosi
- Centro Sperimentale di Cinematografia, Roma, Italy
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Federico A, Galli C, Parmeggiani C, Ragona R, Tosi V. Second transit time in a BWR power plant: Experimental evidence. Progress in Nuclear Energy 1982. [DOI: 10.1016/0149-1970(82)90082-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Dentico G, Giovannini R, Marseguerra M, Oguma R, Pacilio N, Taglienti S, Tosi V, Vigo A. Out-of-pile and in-pile temperature noise investigations: A survey of methods results and models. Progress in Nuclear Energy 1982. [DOI: 10.1016/0149-1970(82)90032-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Dentico G, Pacilio V, Papalia B, Taglienti S, Tosi V. Acoustic emission noise from sodium vapour bubble collapsing: Detection, interpretation, modelling and simulation. Progress in Nuclear Energy 1982. [DOI: 10.1016/0149-1970(82)90048-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Biserna T, Cavallini F, Taglienti S, Tosi V. Results of acoustic and temperature noise measurements on sodium cooled electrically heated 7 rod bundle. Progress in Nuclear Energy 1977. [DOI: 10.1016/0149-1970(77)90102-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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