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Vulpoi RA, Luca M, Ciobanu A, Olteanu A, Bărboi O, Iov DE, Nichita L, Ciortescu I, Cijevschi Prelipcean C, Ștefănescu G, Mihai C, Drug VL. The Potential Use of Artificial Intelligence in Irritable Bowel Syndrome Management. Diagnostics (Basel) 2023; 13:3336. [PMID: 37958232 PMCID: PMC10648815 DOI: 10.3390/diagnostics13213336] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 09/21/2023] [Revised: 10/24/2023] [Accepted: 10/28/2023] [Indexed: 11/15/2023] Open
Abstract
Irritable bowel syndrome (IBS) has a global prevalence of around 4.1% and is associated with a low quality of life and increased healthcare costs. Current guidelines recommend that IBS is diagnosed using the symptom-based Rome IV criteria. Despite this, when patients seek medical attention, they are usually over-investigated. This issue might be resolved by novel technologies in medicine, such as the use of Artificial Intelligence (AI). In this context, this paper aims to review AI applications in IBS. AI in colonoscopy proved to be useful in organic lesion detection and diagnosis and in objectively assessing the quality of the procedure. Only a recently published study talked about the potential of AI-colonoscopy in IBS. AI was also used to study biofilm characteristics in the large bowel and establish a potential relationship with IBS. Moreover, an AI algorithm was developed in order to correlate specific bowel sounds with IBS. In addition to that, AI-based smartphone applications have been developed to facilitate the monitoring of IBS symptoms. From a therapeutic standpoint, an AI system was created to recommend specific diets based on an individual's microbiota. In conclusion, future IBS diagnosis and treatment may benefit from AI.
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Affiliation(s)
- Radu Alexandru Vulpoi
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700111 Iasi, Romania; (R.A.V.); (A.O.); (D.-E.I.); (L.N.); (I.C.); (C.C.P.); (G.Ș.); (C.M.); (V.L.D.)
- Emergency Clinical Hospital “Saint Spiridon”, Institute of Gastroenterology and Hepatology, 700111 Iasi, Romania
| | - Mihaela Luca
- Institute of Computer Science, Romanian Academy-Iasi Branch, 700481 Iasi, Romania; (M.L.); (A.C.)
| | - Adrian Ciobanu
- Institute of Computer Science, Romanian Academy-Iasi Branch, 700481 Iasi, Romania; (M.L.); (A.C.)
| | - Andrei Olteanu
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700111 Iasi, Romania; (R.A.V.); (A.O.); (D.-E.I.); (L.N.); (I.C.); (C.C.P.); (G.Ș.); (C.M.); (V.L.D.)
- Emergency Clinical Hospital “Saint Spiridon”, Institute of Gastroenterology and Hepatology, 700111 Iasi, Romania
| | - Oana Bărboi
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700111 Iasi, Romania; (R.A.V.); (A.O.); (D.-E.I.); (L.N.); (I.C.); (C.C.P.); (G.Ș.); (C.M.); (V.L.D.)
- Emergency Clinical Hospital “Saint Spiridon”, Institute of Gastroenterology and Hepatology, 700111 Iasi, Romania
| | - Diana-Elena Iov
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700111 Iasi, Romania; (R.A.V.); (A.O.); (D.-E.I.); (L.N.); (I.C.); (C.C.P.); (G.Ș.); (C.M.); (V.L.D.)
- Emergency Clinical Hospital “Saint Spiridon”, Institute of Gastroenterology and Hepatology, 700111 Iasi, Romania
| | - Loredana Nichita
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700111 Iasi, Romania; (R.A.V.); (A.O.); (D.-E.I.); (L.N.); (I.C.); (C.C.P.); (G.Ș.); (C.M.); (V.L.D.)
- Emergency Clinical Hospital “Saint Spiridon”, Institute of Gastroenterology and Hepatology, 700111 Iasi, Romania
| | - Irina Ciortescu
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700111 Iasi, Romania; (R.A.V.); (A.O.); (D.-E.I.); (L.N.); (I.C.); (C.C.P.); (G.Ș.); (C.M.); (V.L.D.)
- Emergency Clinical Hospital “Saint Spiridon”, Institute of Gastroenterology and Hepatology, 700111 Iasi, Romania
| | - Cristina Cijevschi Prelipcean
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700111 Iasi, Romania; (R.A.V.); (A.O.); (D.-E.I.); (L.N.); (I.C.); (C.C.P.); (G.Ș.); (C.M.); (V.L.D.)
- Emergency Clinical Hospital “Saint Spiridon”, Institute of Gastroenterology and Hepatology, 700111 Iasi, Romania
| | - Gabriela Ștefănescu
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700111 Iasi, Romania; (R.A.V.); (A.O.); (D.-E.I.); (L.N.); (I.C.); (C.C.P.); (G.Ș.); (C.M.); (V.L.D.)
- Emergency Clinical Hospital “Saint Spiridon”, Institute of Gastroenterology and Hepatology, 700111 Iasi, Romania
| | - Cătălina Mihai
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700111 Iasi, Romania; (R.A.V.); (A.O.); (D.-E.I.); (L.N.); (I.C.); (C.C.P.); (G.Ș.); (C.M.); (V.L.D.)
- Emergency Clinical Hospital “Saint Spiridon”, Institute of Gastroenterology and Hepatology, 700111 Iasi, Romania
| | - Vasile Liviu Drug
- Faculty of Medicine, Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700111 Iasi, Romania; (R.A.V.); (A.O.); (D.-E.I.); (L.N.); (I.C.); (C.C.P.); (G.Ș.); (C.M.); (V.L.D.)
- Emergency Clinical Hospital “Saint Spiridon”, Institute of Gastroenterology and Hepatology, 700111 Iasi, Romania
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Ignat A, Luca M, Păvăloi I, Lazăr C. Efficient descriptors selection in automatic image retrieval using DENOL. IFS 2022. [DOI: 10.3233/jifs-219275] [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: 11/15/2022]
Abstract
A well-structured and indexed database alleviates the computing burden on large data. This paper describes groundwork for presenting the data in a compact, distinctive form, improving the procedures of applying keypoint detection algorithms to preprocess and reduce the relevant features of the images. Our method computes for an image a number of SURF keypoints in a given interval, by adapting the threshold related to the Hessian matrix blob detector. This type of approach allows selecting the level of detail to use in image description and gives us control over the computing time. We named this method DENOL (Descriptor Number On Limits) and tested it on images from two datasets, UCID and an original image database which we propose, IIT_DB. Very good retrieval results and a significantly reduced computing time are achieved.
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Affiliation(s)
- Anca Ignat
- Faculty of Computer Science, University “Alexandru Ioan Cuza” of Iaşi, Iaşi, Romania
| | - Mihaela Luca
- Institute of Computer Science, Romanian Academy Iaşi Branch, Iaşi, Romania
| | - Ioan Păvăloi
- Institute of Computer Science, Romanian Academy Iaşi Branch, Iaşi, Romania
| | - Camelia Lazăr
- Institute of Computer Science, Romanian Academy Iaşi Branch, Iaşi, Romania
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Luca M, Ciobanu A. Polyp detection in video colonoscopy using deep learning. IFS 2022. [DOI: 10.3233/jifs-219276] [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: 11/15/2022]
Abstract
Video colonoscopy automatic processing is a challenge and further development of computer assisted diagnosis is very helpful in correctness assessment of the exam, in e-learning and training, for statistics on polyps’ malignity or in polyps’ survey. New devices and programming languages are emerging and deep learning begun already to furnish astonishing results, in the quest for high speed and optimal polyp detection software. This paper presents a successful attempt in detecting the intestinal polyps in real time video colonoscopy with deep learning, using Mobile Net.
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Affiliation(s)
- Mihaela Luca
- Institute of Computer Science, Romanian Academy Iaşi Branch, Iaşi, Romania
| | - Adrian Ciobanu
- Institute of Computer Science, Romanian Academy Iaşi Branch, Iaşi, Romania
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Vulpoi RA, Luca M, Ciobanu A, Olteanu A, Barboi OB, Drug VL. Artificial Intelligence in Digestive Endoscopy—Where Are We and Where Are We Going? Diagnostics (Basel) 2022; 12:diagnostics12040927. [PMID: 35453975 PMCID: PMC9029251 DOI: 10.3390/diagnostics12040927] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/30/2022] [Accepted: 04/06/2022] [Indexed: 02/04/2023] Open
Abstract
Artificial intelligence, a computer-based concept that tries to mimic human thinking, is slowly becoming part of the endoscopy lab. It has developed considerably since the first attempt at developing an automated medical diagnostic tool, today being adopted in almost all medical fields, digestive endoscopy included. The detection rate of preneoplastic lesions (i.e., polyps) during colonoscopy may be increased with artificial intelligence assistance. It has also proven useful in detecting signs of ulcerative colitis activity. In upper digestive endoscopy, deep learning models may prove to be useful in the diagnosis and management of upper digestive tract diseases, such as gastroesophageal reflux disease, Barrett’s esophagus, and gastric cancer. As is the case with all new medical devices, there are challenges in the implementation in daily medical practice. The regulatory, economic, organizational culture, and language barriers between humans and machines are a few of them. Even so, many devices have been approved for use by their respective regulators. Future studies are currently striving to develop deep learning models that can replicate a growing amount of human brain activity. In conclusion, artificial intelligence may become an indispensable tool in digestive endoscopy.
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Affiliation(s)
- Radu-Alexandru Vulpoi
- Institute of Gastroenterology and Hepatology, Saint Spiridon Hospital, “Grigore T. Popa” University of Medicine and Pharmacy, 700111 Iași, Romania; (R.-A.V.); (A.O.); (V.L.D.)
| | - Mihaela Luca
- Institute of Computer Science, Romanian Academy—Iași Branch, 700481 Iași, Romania; (M.L.); (A.C.)
| | - Adrian Ciobanu
- Institute of Computer Science, Romanian Academy—Iași Branch, 700481 Iași, Romania; (M.L.); (A.C.)
| | - Andrei Olteanu
- Institute of Gastroenterology and Hepatology, Saint Spiridon Hospital, “Grigore T. Popa” University of Medicine and Pharmacy, 700111 Iași, Romania; (R.-A.V.); (A.O.); (V.L.D.)
| | - Oana-Bogdana Barboi
- Institute of Gastroenterology and Hepatology, Saint Spiridon Hospital, “Grigore T. Popa” University of Medicine and Pharmacy, 700111 Iași, Romania; (R.-A.V.); (A.O.); (V.L.D.)
- Correspondence: ; Tel.: +40-74-345-5012
| | - Vasile Liviu Drug
- Institute of Gastroenterology and Hepatology, Saint Spiridon Hospital, “Grigore T. Popa” University of Medicine and Pharmacy, 700111 Iași, Romania; (R.-A.V.); (A.O.); (V.L.D.)
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Buckstein R, Balleari E, Wells R, Santini V, Salvetti C, Allione B, Danise P, Finelli C, Clavio M, Zhu N, Michelle G, Sabloff M, Leitch H, Leber B, Luca M, Latagliata R, Antonietta M, Villivà N, Piccioni A, Buccisano F. MDS-Can-It: A New Validated International ESA-Response Score that Further Refines the Predictive Power of the Nordic Scoring System. Leuk Res 2017. [DOI: 10.1016/s0145-2126(17)30339-9] [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: 11/25/2022]
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Patten DK, Corleone G, Kate G, Dimitri HJ, Palmieri C, Raoul CC, Luca M. Abstract P1-04-11: The epigenetic landscape of oestrogen receptor-alpha positive breast cancer. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p1-04-11] [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
This abstract was withdrawn by the authors.
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Affiliation(s)
- DK Patten
- Imperial College London, London, United Kingdom; Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom; Liverpool University, Liverpool
| | - G Corleone
- Imperial College London, London, United Kingdom; Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom; Liverpool University, Liverpool
| | - G Kate
- Imperial College London, London, United Kingdom; Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom; Liverpool University, Liverpool
| | - HJ Dimitri
- Imperial College London, London, United Kingdom; Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom; Liverpool University, Liverpool
| | - C Palmieri
- Imperial College London, London, United Kingdom; Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom; Liverpool University, Liverpool
| | - CC Raoul
- Imperial College London, London, United Kingdom; Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom; Liverpool University, Liverpool
| | - M Luca
- Imperial College London, London, United Kingdom; Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom; Liverpool University, Liverpool
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Nicoletti A, Luca A, Luca M, Donzuso G, Mostile G, Raciti L, Contrafatto D, Dibilio V, Sciacca G, Cicero C, Vasta R, Petralia A, Zappia M. Response to the letter: “Obsessive compulsive personality disorder in Progressive Supranuclear Palsy” by Golimstok. Parkinsonism Relat Disord 2016; 33:144-145. [DOI: 10.1016/j.parkreldis.2016.09.020] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 09/21/2016] [Indexed: 11/28/2022]
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Nicoletti A, Luca A, Luca M, Donzuso G, Mostile G, Raciti L, Contrafatto D, Dibilio V, Sciacca G, Cicero CE, Vasta R, Petralia A, Zappia M. Obsessive compulsive personality disorder in Progressive Supranuclear Palsy, Multiple System Atrophy and Essential Tremor. Parkinsonism Relat Disord 2016; 30:36-9. [PMID: 27364040 DOI: 10.1016/j.parkreldis.2016.06.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 05/27/2016] [Accepted: 06/19/2016] [Indexed: 12/23/2022]
Abstract
INTRODUCTION aim of the study was to evaluate the presence of the Obsessive Compulsive Personality Disorder (OCPeD) in Multiple System Atrophy (MSA), Progressive Supranuclear Palsy (PSP) and Essential Tremor (ET) and in a group of healthy subjects. METHODS patients affected by MSA, PSP and ET diagnosed according to currently accepted diagnostic criteria and a group of healthy controls were enrolled in the study. Patients with cognitive impairment were excluded from the study. The Structured Clinical Interview for Personality Disorders-II (SCID-II) has been performed to evaluate the presence of personality disorders (PeDs). The diagnosis of OCPeD was confirmed by a psychiatric interview. RESULTS fifteen MSA patients (8 men and 7 women; aged 62.9 ± 7.6 years), 14 PSP patients (8 men and 6 women; aged 69.8 ± 4.4 years), 16 ET patients (10 men and 6 women; aged 70.4 ± 6.4 years) and 20 healthy subjects (10 men and 10 women; aged 65.5 ± 6.0 years) were enrolled. OCPeD was recorded in 5 (35.7%) PSP patients, 2 (13.3%) MSA patients, 2 (12.5%) ET patient and 2 (10%) controls. CONCLUSION a low frequency of OCPeD, close to those recorded in healthy subjects, was recorded in both MSA and ET patients. Conversely an higher frequency of OCPeD, similar to PD was found among PSP patients, supporting the possibility of an impairment of common basal ganglia network possibly involving the orbito-frontal circuits.
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Affiliation(s)
- A Nicoletti
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - A Luca
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - M Luca
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - G Donzuso
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - G Mostile
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - L Raciti
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - D Contrafatto
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - V Dibilio
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - G Sciacca
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - C E Cicero
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - R Vasta
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - A Petralia
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - M Zappia
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy.
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Trovato A, Siracusa R, Di Paola R, Scuto M, Fronte V, Koverech G, Luca M, Serra A, Toscano MA, Petralia A, Cuzzocrea S, Calabrese V. Redox modulation of cellular stress response and lipoxin A4 expression by Coriolus versicolor in rat brain: Relevance to Alzheimer's disease pathogenesis. Neurotoxicology 2015; 53:350-358. [PMID: 26433056 DOI: 10.1016/j.neuro.2015.09.012] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [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: 08/29/2015] [Accepted: 09/07/2015] [Indexed: 11/27/2022]
Abstract
Increasing evidence supports the notion that oxidative stress-driven neuroinflammation is an early pathological feature in neurodegenerative diseases. As a prominent intracellular redox system involved in neuroprotection, the vitagene system is emerging as a potential neurohormetic target for novel cytoprotective interventions. Vitagenes encode for cytoprotective heat shock proteins 70, heme oxygenase-1, thioredoxin and lipoxin A4. Emerging interest is now focusing on molecules capable of activating the vitagene system as novel therapeutic targets to minimize deleterious consequences associated with free radical-induced cell damage, such as in neurodegeneration. Mushroom-derived lipoxin A4 (LXA4) is an emerging endogenous eicosanoid able to promote resolution of inflammation, acting as an endogenous "braking signal" in the inflammatory process. Mushrooms have long been used in traditional medicine for thousands of years, being now increasingly recognized as rich source of polysaccharopeptides endowed with significant antitumor, antioxidant, antiviral, antibacterial and cytoprotective effects, thereby capable of stimulating host immune responses. Here we provide evidence of a neuroprotective action of the Coriolus mushroom when administered orally to rat. Expression of LXA4 was measured in different brain regions after oral administration of a Coriolus biomass preparation, given for 30 days. LXA4 up-regulation was associated with an increased content of redox sensitive proteins involved in cellular stress response, such as Hsp72, heme oxygenase-1 and thioredoxin. In the brain of rats receiving Coriolus, maximum induction of LXA4 was observed in cortex and hippocampus. Hsps induction was associated with no significant changes in IkBα, NFkB and COX-2 brain levels. Conceivably, activation of LXA4 signaling and modulation of stress-responsive vitagene proteins could serve as a potential therapeutic target for AD-related inflammation and neurodegenerative damage.
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Affiliation(s)
- A Trovato
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy
| | - R Siracusa
- Department of Clinical and Experimental Medicine and Pharmacology, School of Medicine, University of Messina, Messina, Italy
| | - R Di Paola
- Department of Clinical and Experimental Medicine and Pharmacology, School of Medicine, University of Messina, Messina, Italy
| | - M Scuto
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy
| | - V Fronte
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy
| | - G Koverech
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy
| | - M Luca
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy
| | - A Serra
- Department of Clinical and Experimental Medicine, School of Medicine, University of Catania, Catania, Italy
| | - M A Toscano
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy
| | - A Petralia
- Department of Clinical and Experimental Medicine, School of Medicine, University of Catania, Catania, Italy
| | - S Cuzzocrea
- Department of Clinical and Experimental Medicine and Pharmacology, School of Medicine, University of Messina, Messina, Italy
| | - V Calabrese
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy.
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Luca A, Luca M, Di Mauro M, Palermo F, Rampulla F, Calandra C. Alexithymia, more than depression, influences glycaemic control of type 2 diabetic patients. J Endocrinol Invest 2015; 38:653-60. [PMID: 25596663 DOI: 10.1007/s40618-015-0238-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Accepted: 01/05/2015] [Indexed: 12/27/2022]
Abstract
PURPOSE Psychiatric disorders could affect the patients' abilities to cope with diabetes. The objectives of this study were to assess the prevalence of depression and alexithymia among type 2 diabetic patients and investigate the possible correlations between these psychopathological phenomena and glycaemic control assessed through glycated hemoglobin (HbA1c). METHODS All the patients were evaluated through 20-item Toronto Alexithymia Scale (TAS-20), Hamilton rating scale for depression and Quality of Life Index. HbA1c values, diabetes duration, therapy and socio-demographic characteristics were recorded. RESULTS One hundred and twenty-eight patients (75 males and 53 female, mean age 64.7 ± 11.2 years) were enrolled. Alexithymic patients, compared to non-alexithymic ones, presented a significantly higher HbA1c (7.7 ± 1.5 vs. 7 ± 1.5, p = 0.016). No statistically significant difference was found when comparing the HbA1c of depressed versus non-depressed patients. Considering the raw values of HbA1c, the higher percentage was recorded among patients suffering from depression plus alexithymia (comorbidity group) followed by patients presenting alexithymia only, patients with neither depression nor alexithymia (control group) and, finally, those presenting depression only. The comorbidity group presented a significantly higher value of HbA1c (7.7 ± 1.2) than the control group (7 ± 1.6, p < 0.04) and the depressed patients (6.9 ± 1.3, p = 0.04). At the logistic regression, the HbA1c was found to be significantly associated only with alexithymia (TAS-20 total score) and insulin therapy. CONCLUSIONS Alexithymia more than depression influences glycaemic control. When evaluating a diabetic patient, a rapid screening for psychopathological alterations would guarantee a more accurate management. The treatment of any associated psychiatric disorders would improve the patients' quality of life.
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Affiliation(s)
- A Luca
- Department "GF Ingrassia", Section of Neuroscience, University Hospital "Policlinico-Vittorio Emanuele" of Catania (Sicily), Via S. Sofia 78, 95100, Catania, Italy
| | - M Luca
- Department of Medical and Surgery Specialties, Psychiatry Unit of the University Hospital "Policlinico-Vittorio Emanuele" of Catania (Sicily), Via S. Sofia 78, 95100, Catania, Italy
| | - M Di Mauro
- Department of Clinical and Molecular Biomedicine, Andrology and Endocrinology Unit, University Hospital "Policlinico-Vittorio Emanuele" of Catania (Sicily), Via S. Sofia 78, 95100, Catania, Italy
| | - F Palermo
- Department of Clinical and Molecular Biomedicine, Infectious Diseases Unit, University of Catania, ARNAS Garibaldi Nesima, Catania (Sicily), Via Palermo 636, 95122, Catania, Italy
| | - F Rampulla
- Department of Medical and Surgery Specialties, Psychiatry Unit of the University Hospital "Policlinico-Vittorio Emanuele" of Catania (Sicily), Via S. Sofia 78, 95100, Catania, Italy
| | - C Calandra
- Department of Medical and Surgery Specialties, Psychiatry Unit of the University Hospital "Policlinico-Vittorio Emanuele" of Catania (Sicily), Via S. Sofia 78, 95100, Catania, Italy.
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Briani C, Zara G, Toffanin E, Ruggero S, Ferrarini A, De Lazzari F, Luca M, Faggian D, Grassivaro F, Ermani M, Pezzani R, Giometto B, D'Odorico A. Neurological complications of celiac disease and autoimmune mechanisms: preliminary data of a prospective study in adult patients. Ann N Y Acad Sci 2006; 1051:148-55. [PMID: 16126954 DOI: 10.1196/annals.1361.056] [Citation(s) in RCA: 21] [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: 11/12/2022]
Abstract
Antibodies to gangliosides and Purkinje cells have been reported in patients with celiac disease (CD) with neuropathy and ataxia, respectively. Whether these antibodies are pathogenic is not clear. The response of neurological symptoms and antibody titers to a gluten-free diet is still controversial. The objective of our study was to assess whether neurological manifestations in CD patients correlate with antibody titers and a gluten-free diet.Thirty-five CD patients (9 males, 26 females, mean age 37.1 +/- 12.6 yrs) were followed prospectively. At initial evaluation, 23 were on a gluten-free diet, 12 were not. At recruitment and during follow-up, patients underwent neurological and electrophysiological evaluation. IgG, IgM, and IgA anti-ganglioside antibodies were assayed by ELISA; anti-neuronal antibodies were assessed by immunohistochemistry and Western blot. Four patients, all males, had electrophysiological evidence of neuropathy; three had been on a gluten-free diet for several months, and one was newly diagnosed. One had reduced tendon reflexes; another complained of distal paresthesias. With regard to anti-ganglioside antibodies, three patients had a moderate increase in antibodies without symptoms or signs of neuropathy. No patients had ataxia or cerebellar dysfunction, although in four patients reactivity to neuronal antigens was found. In 17 patients, an electrophysiological follow-up (mean duration of follow-up, 9 months) showed no changes. In conclusion, the preliminary results of this prospective study indicate that neuropathy, usually subclinical, may accompany CD. Antibody titers do not seem to correlate with neurological symptoms/signs or diet. Ongoing follow-up will help confirm these data and clarify the role, if any, of antibodies in neurological involvement in CD.
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Affiliation(s)
- C Briani
- Department of Neurosciences, University of Padua, Via Giustiniani 5, 35128 Padua, Italy.
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13
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De Carlo E, Tamagno G, Martini C, Maffei P, Rubello D, Luca M, Sicolo N. Autoimmune diabetes mellitus, Hodgkin's disease and Graves' ophthalmopathy in a patient with 8.1 ancestral haplotype. Horm Metab Res 2004; 36:97-100. [PMID: 15002059 DOI: 10.1055/s-2004-814218] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
In this report, we describe the case of a 43-year-old woman affected by type 1 diabetes mellitus diagnosed 8 years before, who developed Graves' disease 2 years after chemotherapy and mantle radiotherapy treatment for Hodgkin's disease. Bilateral Graves' ophthalmopathy appeared four months before our observations. Intravenous methyl-prednisolone therapy was started, but was interrupted due to severe metabolic failure. Autoantibodies (anti-islet cells, anti-thyroid, thyroid-stimulating, non-organ-specific) were positive. Since the clinical picture suggested a genetic immunological ground predisposing to autoimmunity, we evaluated her HLA haplotype. Genomic typing of the patient permitted identification of the 8.1 ancestral haplotype, a Caucasoid haplotype unique in its association with many immunopathological diseases. Moreover, we also observed a haplotype unusual in Caucasians, trans DRB1*1101, DQA1*0103, DQB1*0603. To our knowledge, HLA-related genetic risk of developing thyroid autoimmunity after neck irradiation has never been studied. Although we cannot confirm a direct association between the 8.1 ancestral haplotype or DRB1*1101, DQA1*0103, DQB1*0603 and the diseases described, we suggest considering immunological parameters and HLA typing in candidate patients for mantle radiation therapy for Hodgkin's disease or other tumors. HLA haplotype determination could be useful in identifying the patients at raised risk of developing autoimmune diseases after irradiation, thus permitting a more appropriate follow-up schedule.
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Affiliation(s)
- E De Carlo
- Department of Medical and Surgical Sciences, Clinica Medica III, University of Padua, Via N. Giustiniani 2, 35128 Padua, Italy.
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14
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Guadagni S, Russo F, Abate G, Pozone T, Capannolo B, Marsili L, D'Alessandro V, Amicucci G, Aigner KR, Stefano G, Filippo R, Giuseppe A, Tullio P, Benita C, Luca M, Valfredo D, Gianfranco A, Roland AK. Stop-flow in mediastinum and thorax for resistant lymphoma. Hepatogastroenterology 2000; 47:378-82. [PMID: 10791194] [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] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
BACKGROUND/AIMS Management of patients with heavily pretreated malignant lymphoma failing frontline treatment and salvage high-dose chemotherapy and autologous peripheral stem cell rescue, is problematic. A pilot study was conducted to evaluate isolated thoracic perfusion of drugs by means of stopflow technique. METHODOLOGY Six patients were enrolled in the study; diagnoses included 4 advanced Hodgkin's disease, 1 primary mediastinal B-cell lymphoma, and 1 anaplastic large cell lymphoma. Patients were aged 18-37 years; 4 presented with bulky mediastinum. They had never achieved a complete response since all had progressed from front-line treatment, and 3 had even failed salvage high-dose chemotherapy with autologous peripheral stem cell rescue. Cisplatin (100 mg/m2) and melphalan (35 mg/m2) were used. Carmustine (100 mg/m2) were added to these 2 drugs and cytarabine (2000 mg/m2) in patients not previously treated by carmustine, etoposide, cytarabine, and melphalan. Epidoxorubicin (70 mg/m2) was added in patients who previously received a suboptimal dosage of antracycline. Drugs were delivered monthly via aortic perfusion performed by means of Aigner's stop-flow technique. RESULTS Overall 13 cycles of perfusional chemotherapy were administered with a median number of 2 cycles. During the procedures there were no technical, hemodynamic, or vascular complications, and no deaths occurred during surgery. After 1 month, 6 (100%) objective responses after isolated thoracic perfusion were recorded, 3 (50%) of which were complete. Tolerance to therapy was excellent. Hematological toxicity was mild and transfusional support was needed only in one course. At the last follow-up, 2 patients are alive (1 complete response and 1 very good partial response, maintained). CONCLUSIONS This new therapeutical approach seems very active in recurrent/refractory malignant lymphoma and may play an important role in this setting.
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Affiliation(s)
- S Guadagni
- Department of Surgery, University of L'Aquila, Italy.
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15
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Huang S, Jean D, Luca M, Tainsky MA, Bar-Eli M. Loss of AP-2 results in downregulation of c-KIT and enhancement of melanoma tumorigenicity and metastasis. EMBO J 1998; 17:4358-69. [PMID: 9687504 PMCID: PMC1170769 DOI: 10.1093/emboj/17.15.4358] [Citation(s) in RCA: 202] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Expression of the tyrosine kinase receptor, c-KIT, progressively decreases during local tumor growth and invasion of human melanomas. We have previously shown that enforced c-KIT expression in highly metastatic cells inhibited tumor growth and metastasis in nude mice. Furthermore, the ligand for c-KIT, SCF, induces apoptosis in human melanoma cells expressing c-KIT under both in vitro and in vivo conditions. Here we show that loss of c-KIT expression in highly metastatic cells correlates with loss of expression of the transcription factor AP-2. The c-KIT promoter contains three binding sites for AP-2 and EMSA gels demonstrated that AP-2 protein binds directly to the c-KIT promoter. Transfection of wild-type AP-2 into c-KIT-negative A375SM melanoma cells activated a c-KIT promoter-driven luciferase reporter gene, while expression of a dominant-negative AP-2B in c-KIT-positive Mel-501 cells inhibited its activation. Endogenous c-KIT mRNA and expression of proteins were upregulated in AP-2-transfected cells, but not in control cells. In addition, re-expression of AP-2 in A375SM cells suppressed their tumorigenicity and metastatic potential in nude mice. These results indicate that the expression of c-KIT is highly regulated by AP-2 and that enforced AP-2 expression suppresses tumorigenicity and metastatic potential of human melanoma cells, possibly through c-KIT transactivation and SCF-induced apoptosis. Therefore, loss of AP-2 expression might be a crucial event in the development of malignant melanoma.
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Affiliation(s)
- S Huang
- Department of Cell Biology, The University of Texas, M.D. Anderson Cancer Center, Houston 77030. USA
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16
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Luca M, Dragotescu I, Iordache A. The value of Toxoplasma specific IgA in diagnosis. Parasitol Int 1998. [DOI: 10.1016/s1383-5769(98)81139-2] [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: 11/30/2022]
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17
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Jean D, Gershenwald JE, Huang S, Luca M, Hudson MJ, Tainsky MA, Bar-Eli M. Loss of AP-2 results in up-regulation of MCAM/MUC18 and an increase in tumor growth and metastasis of human melanoma cells. J Biol Chem 1998; 273:16501-8. [PMID: 9632718 DOI: 10.1074/jbc.273.26.16501] [Citation(s) in RCA: 119] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
MCAM/MUC18 is a cell-surface glycoprotein of 113 kDa, originally identified as a melanoma antigen, whose expression is associated with tumor progression and the development of metastatic potential. We have previously shown that enforced expression of MCAM/MUC18 in primary cutaneous melanoma led to increased tumor growth and metastatic potential in nude mice. The mechanism for up-regulation of MCAM/MUC18 during melanoma progression is unknown. Here we show that up-regulation of MCAM/MUC18 expression in highly metastatic cells correlates with loss of expression of the transcription factor AP-2. The MCAM/MUC18 promoter contains four binding sites for AP-2, and electrophoretic mobility shift assay gels demonstrated that the AP-2 protein bound directly to the MCAM/MUC18 promoter. Transfection of AP-2 into highly metastatic A375SM melanoma cells (AP-2-negative and MCAM/MUC18-positive) inhibited MCAM/MUC18 promoter-driven chloramphenicol acetyltransferase reporter gene in a dose-dependent manner. MCAM/MUC18 mRNA and protein expression were down-regulated in AP-2-transfected but not in control cells. In addition, re-expression of AP-2 in A375SM cells inhibited their tumorigenicity and metastatic potential in nude mice. These results indicate that the expression of MCAM/MUC18 is regulated by AP-2 and that enforced AP-2 expression suppresses tumorigenicity and metastatic potential of human melanoma cells, possibly by down-regulating MCAM/MUC18 gene expression. Since AP-2 also regulates other genes that are involved in the progression of human melanoma such as c-KIT, E-cadherin, MMP-2, and p21(WAF-1), we propose that loss of AP-2 is a crucial event in the development of malignant melanoma.
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Affiliation(s)
- D Jean
- Department of Cell Biology, University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030, USA
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18
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Abstract
The ATF/CREB family of eukaryotic transcription factors contain the bZIP structural motif and mediate their transcriptional activities via heterodimerization with ATF and AP-1 family members. Quenching of CREB-associated proteins by a dominant-negative CREB (KCREB) that is mutated within its DNA-binding domain decreases radiation resistance of human melanoma cells. The purpose of this study was to determine the role of CREB in tumor growth and metastasis of human melanoma using KCREB. Highly metastatic MeWo human melanoma cells were transfected with the KCREB expression vector and subsequently analysed for changes in their tumorigenic and metastatic potential. Expression of KCREB in MeWo human cells decreased their tumorigenic and metastatic potential in nude mice compared with parental and control transfected cells. The KCREB-transfected cells displayed downregulation of 72 kDa collagenase type IV (MMP-2) mRNA expression and activity and decreased invasiveness through Matrigel-coated filters. Moreover, transcriptional activities mediated by the CAT gene driven by the MMP-2 promoter were decreased by 14-45-fold in KCREB-transfected cells. In addition, the cell-surface adhesion molecule MCAM/MUC18 that is involved in metastasis of human melanoma was downregulated in the KCREB-transfected cells. These data indicate that, through their transcriptional activities, CREB and its associated proteins play an important role in the acquisition of the metastatic phenotype of human melanoma cells.
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Affiliation(s)
- S Xie
- Department of Cell Biology, The University of Texas M.D. Anderson Cancer Center, Houston 77030, USA
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19
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Luca M, Huang S, Gershenwald JE, Singh RK, Reich R, Bar-Eli M. Expression of interleukin-8 by human melanoma cells up-regulates MMP-2 activity and increases tumor growth and metastasis. Am J Pathol 1997; 151:1105-13. [PMID: 9327744 PMCID: PMC1858026] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Expression of interleukin-8 (IL-8) by human melanoma cells correlates with their metastatic potential. Moreover, UV-B irradiation of primary cutaneous melanoma cells induces IL-8 mRNA and protein production and increases both tumor growth and metastasis in nude mice. Although IL-8 has been shown to be an angiogenic factor, the biological consequences of increased IL-8 production by melanoma cells and the role of IL-8 in the metastatic process remains unclear. The purpose of this study was to determine the role of IL-8 in tumor growth and metastasis of human melanoma cells. Nonmetastatic SB-2 melanoma cells with negligible levels of IL-8 were transfected with IL-8 cDNA and subsequently analyzed for changes in their tumorigenic and metastatic potential. Enforced expression of IL-8 rendered the melanoma cells highly tumorigenic and increased their metastatic potential as compared with parental and control transfected cells. The IL-8-transfected cells displayed up-regulation in M(r) 72,000 collagenase type IV (MMP-2) mRNA and collagenase activity and increased invasiveness through Matrigel-coated filters. Moreover, when the MMP-2 promoter was linked upstream of the chloramphenicol acetyltransferase (CAT) reporter gene, CAT activity was up-regulated in IL-8 but not in control transfected cells, suggesting that IL-8 is involved in MMP-2 gene transcription. Activation of type IV collagenase by IL-8 can enhance the invasion of host stroma by the tumor cells and increase angiogenesis and, hence, metastasis.
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Affiliation(s)
- M Luca
- Department of Cell Biology, University of Texas M. D. Anderson Cancer Center, Houston 77030, USA
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20
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Munteanu G, Căruntu ID, Luca M, Dobrescu G. [Morphological diagnostic problems in a case of peritoneal blastomycosis]. Rev Med Chir Soc Med Nat Iasi 1997; 101:197-201. [PMID: 10756798] [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] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Blastomycosis is a mycotic disease, caused by a fungal infection. It has a wide spectrum of clinical presentations, and, particularly, can mimic neoplastic disease. Correct diagnosis of the illness requires fungal culture and biopsy. In Romania, mycotic histopathology is insufficiently developed, and morphological tests are recommended to very few people who present this type of pathology. The paper discusses a case of peritoneal blastomycosis found at a patient with an abdominal pseudotumoral mass. The microscopic exam revealed the characteristic histologic features and budding yeast, in specific dyes, typical to the Blastomyces dermatidis (PAS, silver-methenamin). Authors of this paper hereby intend to draw pathologists' attention on the existence and diagnosis of mycotic lesions, whose number is continuously increasing nowadays.
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Affiliation(s)
- G Munteanu
- Serviciul de Anatomie Patologică şi Prosectură, Spitalul Clinic C. I. Parhon, Iaşi
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21
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Xie S, Luca M, Huang S, Gutman M, Reich R, Johnson JP, Bar-Eli M. Expression of MCAM/MUC18 by human melanoma cells leads to increased tumor growth and metastasis. Cancer Res 1997; 57:2295-303. [PMID: 9187135] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The cell surface adhesion molecule MCAM (MUC18) is strongly expressed by advanced primary and metastatic melanomas but is weaker and less frequent in nevus cells. Previous studies have shown that MCAM expression correlates with tumor thickness and metastatic potential of human melanoma cells in nude mice. To provide direct evidence that MCAM plays a role in tumor growth and metastasis of human melanoma, the nonmetastatic MCAM-negative primary cutaneous melanoma SB-2 cells were transfected with MCAM cDNA and analyzed subsequently for changes in their tumorigenic and metastatic potential. Enforced expression of MCAM in SB-2 cells rendered them highly tumorigenic and increased their metastatic potential in nude mice as compared with parental and control transfected cells. The transfected cells displayed increased homotypic adhesion, increased attachment to human endothelial cells, decreased ability to adhere to laminin, and increased invasiveness through Matrigel-coated filters. Anti-MCAM monoclonal antibody reversed these functions in the transfected cells but not in control cells. The above changes in function attributed to the expression of MCAM may underlie the contribution of MCAM/MUC18 to the malignant phenotype.
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Affiliation(s)
- S Xie
- Department of Cell Biology, The University of Texas M. D. Anderson Cancer Center, Houston 77030, USA
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22
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Bairati C, Goi G, Bollini D, Roggi C, Luca M, Apostoli P, Lombardo A. Effects of lead and manganese on the release of lysosomal enzymes in vitro and in vivo. Clin Chim Acta 1997; 261:91-101. [PMID: 9187508 DOI: 10.1016/s0009-8981(97)06515-7] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In this study we evaluated the effects of two heavy metals, lead and manganese, on the release of some glycohydrolases of lysosomal origin. N-acetyl-beta-D-glucosaminidase and its major isoenzymes, beta-D-glucuronidase and alpha-D-galactosidase. We have studied release of these enzymes in vitro from peripheral mitogen-activated lymphocytes from healthy subjects after addition of Pb or Mn to the medium and their plasma levels in individuals exposed at work to Pb (31 subjects) or to manganese (36 subjects), versus matched controls. We also determined the plasma levels in a general population (417 subjects). The enzymatic activities were assayed fluorimetrically with 4-methylumbelliferyl-glycosides as substrates. Particular attention was given to some technical aspects: enzymatic activity was preserved by addition of ethylene glycol and stable liquid material was employed for calibration purposes. N-acetyl-beta-D-glucosaminidase isoenzymes were separated by a routine chromatofocusing procedure on PBE 94. The addition of both metals to lymphocytes inhibits lysosomal enzyme release. These data were supported by the plasma levels for the exposed subjects, in which enzyme levels were significantly decreased after either type of exposure. In the general population of subjects not professionally exposed, the effect of lead appears to be masked by concomitant effects of alcohol consumption. Undoubtedly, some heavy metals can alter distribution of glycohydrolases of lysosomal origin between the intra- and extracellular environment, probably interfering with membrane mechanisms. Lysosomal enzymes seem to behave as sensitive biomarkers for early subclinical changes that might later lead to clinical disease.
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Affiliation(s)
- C Bairati
- Department of Medical Chemistry and Biochemistry, Medical School, University of Milan, Italy
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23
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Huang S, Luca M, Gutman M, McConkey DJ, Langley KE, Lyman SD, Bar-Eli M. Enforced c-KIT expression renders highly metastatic human melanoma cells susceptible to stem cell factor-induced apoptosis and inhibits their tumorigenic and metastatic potential. Oncogene 1996; 13:2339-47. [PMID: 8957075] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Expression of the tyrosine-kinase receptor encoded by the c-KIT proto-oncogene progressively decreases during local tumor growth and invasion of human melanomas. To provide direct evidence that c-KIT plays a role in metastasis of human melanoma, we transfected the c-KIT gene into the c-KIT negative highly metastatic human melanoma cell line A375SM and subsequently analysed its tumorigenic and metastatic potential. A375SM parental cells, A375SM-NOT (neo, control), and A375SM-KIT-positive cells were injected s.c. and i.v. into nude mice. A375SM-KIT cells produced significantly slower growing s.c. tumors and fewer lung metastases than control cells. Exposure of c-KIT-positive melanoma cells in vitro and in vivo to stem cell factor (SCF), the ligand for c-KIT, triggered apoptosis of these cells but not of c-KIT-negative melanoma cells or normal melanocytes. Since SCF is produced by keratinocytes and other dermal cells in the skin, these results suggest that the loss of c-KIT receptor expression may allow malignant melanoma cells to escape SCF/c-KIT-mediated apoptosis, hence contributing to tumor growth and eventually metastasis. The antitumor and antimetastatic properties of SCF may be useful in treating human melanomas in early stages.
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Affiliation(s)
- S Huang
- Department of Cell Biology, The University of Texas MD Anderson Cancer Center, Houston 77030, USA
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24
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Luca M, Xie S, Gutman M, Huang S, Bar-Eli M. Abnormalities in the CDKN2 (p16INK4/MTS-1) gene in human melanoma cells: relevance to tumor growth and metastasis. Oncogene 1995; 11:1399-402. [PMID: 7478563] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The inhibitor of cyclin-dependent kinase 4, CDKN2 (also known as p16INK4 or MTS-1, multiple tumor suppressor gene 1), has been mapped to 9p21. The gene has been shown to be deleted or mutated in high frequency in human melanoma cell lines and familial melanoma patients, suggesting that it could be a melanoma suppressor gene. How these observations are related to tumorigenicity and metastasis of human melanoma is not clear however. To test the role of CDKN2 in human melanoma metastasis, 14 human melanoma cell lines with different metastatic abilities in nude mice were analysed for possible abnormalities in the CDKN2 gene. Homozygous deletions that resulted in a lack of gene expression were found in six of 14 cell lines tested. SSCP-direct sequencing revealed point mutations in three other cell lines. One cell line displayed CC to TT transitions which constitute a hallmark of ultraviolet-induced DNA damage. Overall, abnormalities in the CDKN2 gene were found in nine of 14 (64%) cell lines tested. Homozygous deletion and lack of gene expression were found in several low tumorigenic and nonmetastatic melanoma lines, whereas other metastatic cells did not exhibit abnormalities in the CDKN2 gene. These data suggest that the absence of normal CDKN2 does not confer growth advantage to melanoma cells in vivo and that the production of metastasis by human melanoma cells can occur in the absence of CDKN2 gene abnormalities.
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Affiliation(s)
- M Luca
- Department of Cell Biology, University of Texas M.D. Anderson Cancer Center, Houston 77030, USA
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25
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Luca M, Zaharia I. [Cyclospora--a new genus of enteropathogen in man]. Rev Med Chir Soc Med Nat Iasi 1995; 99:279-80. [PMID: 9455385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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26
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Luca M, Lenzi R, Leejackson D, Gutman M, Fidler I, Bareli M. P53 mutations are infrequent and do not correlate with the metastatic potential of human-melanoma cells. Int J Oncol 1993; 3:19-22. [PMID: 21573319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
Eleven human melanoma cell lines with different metastatic ability (both spontaneous and experimental) in nude mice, were analyzed for p53 mutations. Mutations in the conserved regions of the p53 gene were identified by single-strand conformation polymorphism analysis of exons 5-9 and were verified by direct DNA sequencing of polymerase chain reaction products. A mutation was detected in only one low metastatic melanoma cell line with a C->G transition at codon 278, resulting in a substitution of arginine for proline. Only this cell line reacted immunohistochemically with mouse monoclonal antibody PAb 1801, which is immunoreactive with human p53 protein. Another cell line with low metastatic potential showed loss of heterozygosity for p53 with the remaining allele being normal. No mutations were detected in the highly metastatic melanoma cell lines' We conclude that p53 mutations are infrequent in human melanomas and are not a prerequisite for the acquisition of the metastatic phenotype.
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Affiliation(s)
- M Luca
- UNIV TEXAS,MD ANDERSON CANC CTR,DEPT CELL BIOL,BOX 173,1515 HOLCOMBE BLVD,HOUSTON,TX 77030
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27
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Luca M, Zaharia I, Stanciu O. [Parasitic hypereosinophilia]. Rev Med Chir Soc Med Nat Iasi 1993; 97:203-4. [PMID: 7997657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- M Luca
- Laboratorul de Parazitologie, Universitatea de Medecină şi Farmacie Iaşi
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28
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Abstract
The expression of the glycoprotein MUC18 in melanoma biopsies has previously been shown to increase with increasing tumour thickness, and thus to correlate with the probability of metastasis development. We have examined the expression of this molecule by nine human melanoma cell lines with known metastatic ability (both spontaneous and experimental) in nude mice. Examination of the expression of both the MUC18 mRNA and of the glycoprotein on the cell surface revealed a statistically significant correlation (P = 0.040) between its expression and the ability to form metastases in vivo. Although MUC18 shows sequence similarity to neural cell adhesion molecules, no correlation was observed between the site of origin of the metastatic lesions (brain, lymph node) and MUC18 expression.
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Affiliation(s)
- M Luca
- Department of Cell Biology, University of Texas M.D. Anderson Cancer Center, Houston 77030
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29
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Luca M, Zaharia I, Stanciu O. [Trichinelliasis, a parasitosis of renewed current interest]. Rev Med Chir Soc Med Nat Iasi 1993; 97:497-8. [PMID: 8153485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- M Luca
- Universitatea de Medicină şi Farmacie Iaşi
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30
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Zamfir G, Luca M, Neştjanu M. [The current features of environmental pollution]. Rev Med Chir Soc Med Nat Iasi 1991; 95:205-6. [PMID: 1823418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- G Zamfir
- Université de Médecine et de Pharmacie, Iaşi
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31
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Luca M, Ungureanu E. [New data in cryptosporidiosis]. Rev Med Chir Soc Med Nat Iasi 1991; 95:167-72. [PMID: 1823409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- M Luca
- Laboratorul de parazitologie medicală, Universitatea de Medicină şi Farmacie Iaşi
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Ungureanu E, Luca M. [A case of giardiasis]. Rev Med Chir Soc Med Nat Iasi 1990; 94:645. [PMID: 2131569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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33
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Agostini C, Trentin L, Zambello R, Luca M, Masciarelli M, Cipriani A, Marcer G, Semenzato G. Pulmonary alveolar macrophages in patients with sarcoidosis and hypersensitivity pneumonitis: characterization by monoclonal antibodies. J Clin Immunol 1987; 7:64-70. [PMID: 3104393 DOI: 10.1007/bf00915427] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Using a panel of monoclonal antibodies (MoAbs), the frequency of cells bearing Class I and Class II major histocompatibility complex (MHC) determinants, transferrin receptor (TR) sites, and interleukin-2 receptors (IL-2R) has been evaluated on pulmonary alveolar macrophages (PAM) recovered from the bronchoalveolar lavage (BAL) fluid of 21 patients with pulmonary sarcoidosis (including 11 cases with active sarcoidosis and 10 cases with inactive disease), 8 patients with hypersensitivity pneumonitis (HP), and 6 normal non-smoking volunteers. When the frequency of Class II DR-positive cells was considered, 64.3% of control PAM expressed HLA-DR products. No statistically significant differences were observed between controls and sarcoid patients, while HP patients showed an enhanced proportion of DR+ PAM with respect to normal PAM (P less than 0.05). On the contrary, the frequency of PAM expressing HLA-DQ molecules was higher in both active sarcoidosis and HP patients with respect to patients with inactive sarcoidosis and normal subjects (P less than 0.001). A statistically significant increase in Class I antigen-positive PAM has been demonstrated in HP patients as compared to controls (P less than 0.05). Active sarcoid patients showed a higher number of PAM-bearing TR sites than controls and other groups of patients considered (P less than 0.001). An increase in the percentage of IL-2R-positive PAM has been demonstrated in active sarcoidosis (P less than 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)
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Pizzolo G, Trentin L, Vinante F, Agostini C, Zambello R, Ranucci A, Luca M, Chilosi M, Dazzi F, Foa R. Rearrangement for the T-cell receptor gene and co-expression of immature T-cell markers and natural killer cell phenotype, in a patient with acute lymphoblastic leukaemia. Br J Haematol 1987; 65:17-22. [PMID: 3493027 DOI: 10.1111/j.1365-2141.1987.tb06129.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
We describe a patient with acute lymphoblastic leukaemia whose blasts co-expressed immature T-cell markers and nearly the entire phenotypic repertoire of NK cells. The T-cell nature of the proliferating blasts was proven by the demonstration of the rearrangement for the beta-chain of the T-cell antigen receptor. Although an abnormal phenotypic expression related to the neoplastic proliferation cannot be formally excluded, it is possible that the cells in this patient may represent the clonal expansion of a normal subpopulation of T-cell lineage NK-related cells frozen at an early stage of differentiation. These features provide arguments for discussing the controversial issue of the ontogeny of NK cells and their relationship to the T-cell lineage.
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Popa G, Gavriliţă L, Ambăruş V, Hanganu E, Luca M, Mihailovici S, Ungureanu G. Relationships of toxoplasmosis with malignant neoplasias. Rev Med Chir Soc Med Nat Iasi 1986; 90:425-7. [PMID: 3575979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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36
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Semenzato G, Pizzolo G, Agostini C, Ambrosetti A, Zambello R, Trentin L, Luca M, Masciarelli M, Chilosi M, Vinante F. Alpha-interferon activates the natural killer system in patients with hairy cell leukemia. Blood 1986; 68:293-6. [PMID: 3719101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
To elucidate the mechanisms of alpha-interferon's (alpha-INF) therapeutic effect on clinical and laboratory findings in hairy cell leukemia, we sequentially monitored different immunologic parameters in three patients treated with recombinant alpha-INF. The most evident effect of this treatment on the immune system was the recovery of natural killer (NK) cell in vitro activity of peripheral blood lymphocytes, which was severely impaired before therapy. In particular, NK function began to improve after 3 months, and a complete recovery was obtained after 6 months in all cases. This increase parallels the improvement in clinical and laboratory findings.
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Luca M. [Drug treatment in hydatid cyst]. Rev Med Chir Soc Med Nat Iasi 1986; 90:257-8. [PMID: 3764194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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38
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Semenzato G, Agostini C, Trentin L, Zambello R, Luca M, Marcer G, Cipriani A. Immunoregulation in farmer's lung disease. Correlation between the surface phenotype and functional evaluations at pulmonary level. Chest 1986; 89:133S-135S. [PMID: 3948574 DOI: 10.1378/chest.89.3_supplement.133s] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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39
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Trentin L, Zambello R, Marcer G, Gemignani C, Luca M, Masciarelli M, Agostini C, Semenzato G. Peripheral blood NK cells in patients with extrinsic allergic alveolitis: phenotype and function. Sarcoidosis 1986; 3:47-51. [PMID: 2437628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Peripheral blood mononuclear cells obtained from patients with extrinsic allergic alveolitis were tested with a series of monoclonal antibodies against natural killer cells, including HNK-1, NK-15, Ab8.28, OKM1 reagents. An NK in vitro functional evaluation of these cells was associated to the phenotypic analysis. Our data demonstrated an increase, with respect to controls, of the percentage and absolute number of HNK-1 positive cells in the blood of these patients. This increase was consistent with an enhanced cytotoxic in vitro activity. These findings provide evidence that in patients with extrinsic allergic alveolitis, the exposition to antigenic stimuli triggers the NK system. Possible immunopathogenetic mechanisms, especially in comparison with other interstitial lung disorders, are discussed.
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Agostini C, Trentin L, Zambello R, Luca M, Cipriani A, Pizzolo G, Semenzato G. Phenotypical and functional analysis of natural killer cells in sarcoidosis. Clin Immunol Immunopathol 1985; 37:262-75. [PMID: 4042434 DOI: 10.1016/0090-1229(85)90158-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The frequency of cells reactive with natural killer (NK)-related monoclonal antibodies (MoAbs) HNK-1, NKP-15, B73.1, VEP-13, Ab8.28 has been evaluated in the peripheral blood and bronchoalveolar lavage (BAL) fluid of 39 patients with pulmonary sarcoidosis (including 19 cases with active sarcoidosis and 20 cases with inactive disease). This phenotypic analysis was carried out together with the NK in vitro functional evaluation of cell populations from peripheral blood and BAL fluid. In addition, inhibition studies were performed in order to evaluate the ability of alveolar macrophages (M phi) to modulate NK activity. Data from peripheral blood showed an increased number of mononuclear cells bearing HNK-1, NKP-15, Ab8.28, VEP-13, and B73.1 determinants in patients with active sarcoidosis with respect to patients with inactive disease and controls. The majority of HNK-1-positive cells lacked both Leu2 and Leu3 antigens when investigated in a double marker system. A parallel increase in the in vitro cytotoxicity assay has been demonstrated. On the other hand, only a few mononuclear cells recovered from BAL fluid displayed a surface pattern of NK cells. This small population of HNK-1-positive cells expresses the HNK-1/Leu3 phenotype and does not exhibit NK activity. The alveolar M phi from sarcoid patients, as well as alveolar M phi from controls, have the property of inhibiting the NK activity of autologous peripheral blood lymphocytes. The lack of lung NK function in patients with active sarcoidosis may be related to the presence of immature forms of NK cells and/or to the release of soluble factors by alveolar macrophages.
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Luca M. [Resistance in malaria]. Rev Med Chir Soc Med Nat Iasi 1984; 88:52, 76. [PMID: 6400404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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42
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Mariani G, Scansani A, Bruni T, Vanzini A, Pulica C, Luca M. [Posttraumatic diaphragmatic hernias (author's transl)]. Chir Ital 1981; 33:229-43. [PMID: 7261205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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43
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Surtea S, Luca M, Chirvai S, Chirileanu C, Simu G. [Tolerance reactions to umbilical cord graft in petro-mastoid exenteration cavities]. Rev Chir Oncol Radiol O R L Oftalmol Stomatol Otorinolaringol 1981; 26:67-70. [PMID: 6454223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Mariani G, Bruni T, Scansani A, Luca M, Pulica C. [Leiomyoma of the small intestine (presentation of a case)]. Chir Ital 1980; 32:588-95. [PMID: 7226303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Surtea S, Luca M, Chirvai S, Chirileanu C, Lucaciu S, Pop T. [Possibilities in the treatment of allergic rhinitis. Experience of the Cluj-Napoca Otorhinolaryngological Clinic]. Rev Chir Oncol Radiol O R L Oftalmol Stomatol Otorinolaringol 1979; 24:167-72. [PMID: 160597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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46
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Luca M, Nicoară T, Surtea S. [Recalibration of the nasal foassae with biological material in ozena]. Rev Chir Oncol Radiol O R L Oftalmol Stomatol Otorinolaringol 1978; 23:113-6. [PMID: 149998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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47
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Suceava I, Luca M. [Pericanular recurrences in patients pharyngo-laryngectomized for laryngeal neoplasms]. Otorinolaringologie 1969; 14:223-7. [PMID: 5356067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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48
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Ionescu R, Chirvai S, Luca M, Ciobică C. [Treatment with trypsin on otorhinolaryngology]. Otorinolaringologie 1967; 12:153-60. [PMID: 6046715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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49
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Diaconescu M, Tomescu M, Luca M. [Muscular training, a functional method in the treatment in dento-maxillary anomalies]. Stomatologia (Bucur) 1966; 13:429-36. [PMID: 5227167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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