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1.
Eur Rev Med Pharmacol Sci ; 25(9): 3432-3439, 2021 05.
Article in English | MEDLINE | ID: mdl-34002816

ABSTRACT

OBJECTIVE: Adenomyosis is the consequence of the myometrial invasion by endometrial glands and stroma. Transvaginal ultrasonography plays a decisive role in the diagnosis and monitoring of this pathology. Our study aims to evaluate the efficacy of LNG-IUS (Levonorgestrel Releasing Intrauterine System) as medical therapy. We analyzed both clinical symptoms and ultrasonographic aspects of menometrorrhagia and dysmenorrhea in patients with adenomyosis and the control group. PATIENTS AND METHODS: A prospective cohort study was carried out on 28 patients suffering from symptomatic adenomyosis treated with LNG-IUS. Adenomyosis was diagnosed through transvaginal ultrasonography by an expert sonographer. A control group of 27 symptomatic patients (menorrhagia and dysmenorrhea) without a transvaginal ultrasonographic diagnosis of adenomyosis was treated in the same way. The two cohorts were compared to the efficacy of LNG-IUS on menorrhagia and dysmenorrhea.  Patients are evaluated at the time of LNG-IUS insertion and six months after for: increased uterine volume, globulous uterine morphology, uterine symmetry, alterations in the junctional zone, heterogeneous myometrial texture, presence of myometrial cysts, hyperechogenic lines crossing the myometrium, adenomyomas, menstrual blood loss and dysmenorrhea. RESULTS: After six months, the uterine volume decreased significantly in both cohorts (p=0.005; p=0.005). Furthermore, uterine symmetry, visibility of the junctional zone, heterogeneity of myometrial texture, presence of myometrial cysts, hyperechogenic lines and adenomyomas improved in patients affected by adenomyosis (p>0.001; p>0.001; p>0.001; p=0.014; p=0.025; p=0.014). The blood loss decreased significantly in both the cohorts (p<0.001) and particularly in adenomyotic patients. Pain relief was observed in all the patients (p<0.001). CONCLUSIONS: LNG-IUS can be considered an effective treatment for managing symptoms and improving uterine morphology.


Subject(s)
Adenomyosis/drug therapy , Dysmenorrhea/drug therapy , Intrauterine Devices, Medicated , Levonorgestrel/therapeutic use , Menorrhagia/drug therapy , Adenomyosis/diagnostic imaging , Adult , Cohort Studies , Dysmenorrhea/diagnostic imaging , Female , Humans , Menorrhagia/diagnostic imaging , Middle Aged , Prospective Studies , Ultrasonography
2.
Eur Rev Med Pharmacol Sci ; 23(24): 10672-10677, 2019 Dec.
Article in English | MEDLINE | ID: mdl-31858534

ABSTRACT

OBJECTIVE: The aim of the study was to evaluate the sensitivity and specificity values of high-risk HPV DNA test, p16/ki-67, and HPV mRNA in histologically high-grade cervical intraepithelial lesions (CIN2-CIN3) in women aged 21-24 years with diagnosis of atypical squamous cells of undetermined significance (ASCUS) or low-grade squamous intraepithelial lesion (LSIL) at pap smear. PATIENTS AND METHODS: 342 patients between 21-24 years old, attending spontaneously our clinics, 118 with ASCUS and 224 with LSIL, were enrolled in the study. All patients underwent colposcopy and biopsies were performed in the areas with major changes. All patients were tested at the same time for p16/ki-67, high-risk HPV DNA and HPV mRNA. RESULTS: Nineteen out of 118 women with ASCUS showed a high-grade cervical intraepithelial lesion, 11 out of 118 (9.32%) CIN2, and 8 out of 118 (6.78%) CIN3. The sensitivity of high-risk HPV DNA was 99.9%, and the specificity 23.2%; p16/ki-67 pointed out a sensitivity of 90.9%, and a specificity of 81.8%; HPV mRNA showed a sensitivity of 81.8%, and specificity of 87.9% in CIN2 lesions. In CIN3 lesions, the sensitivity of high-risk HPV DNA was 99.9%, while the specificity was 19.1%; p16/ki-67 showed a sensitivity of 99.9%, and a specificity of 73.7%; HPV mRNA relived a sensitivity of 87.5%, and a specificity of 80.8%. In women with LSIL, a total of 42/224 (18.75%) of CIN2 were found at the histopathological examination, while 17/224 (7.59%) women presented a CIN3. No case of invasive cancer was identified. High-risk HPV DNA was positive in 190/224 (84.8%), p16/ki-67 in 119/224 (53.1%), and HPV mRNA in 104/224 (46.4%). In women with CIN2, the sensitivity of high-risk HPV DNA was of 92.8%, and the specificity 17.5%, the sensitivity of p16/ki-67 was 95.2%, and specificity 61.8%. HPV mRNA showed a sensitivity of 88.8% and a specificity of 87.8%. In women with CIN3, the sensitivity of high-risk HPV DNA was 88.2%, and the specificity 29.7%; p16/ki-67 pointed out a sensitivity of 94.1%, and a specificity of 49%; HPV mRNA showed a sensitivity of 88.2% and a specificity of 80.6. CONCLUSIONS: Taking into account the high rate of spontaneous regression of high-grade lesions in young women, these tests, in particular, the HPV mRNA test, used as a triage test for ASCUS or LSIL, can modify follow-up triage strategy. In fact, this biomarker, due to its high specificity, could lead to a cytology repetition instead of an immediate colposcopy, avoiding over diagnosis and potential overtreatment in this category of women.


Subject(s)
Atypical Squamous Cells of the Cervix/virology , DNA, Viral , Human Papillomavirus DNA Tests , Papillomavirus Infections/diagnosis , RNA, Messenger , Squamous Intraepithelial Lesions of the Cervix/diagnosis , Uterine Cervical Dysplasia/diagnosis , Atypical Squamous Cells of the Cervix/metabolism , Atypical Squamous Cells of the Cervix/pathology , Cyclin-Dependent Kinase Inhibitor p16/metabolism , DNA, Viral/genetics , Female , Humans , Ki-67 Antigen/metabolism , Papanicolaou Test , Papillomavirus Infections/virology , RNA, Messenger/genetics , Sensitivity and Specificity , Squamous Intraepithelial Lesions of the Cervix/metabolism , Squamous Intraepithelial Lesions of the Cervix/pathology , Squamous Intraepithelial Lesions of the Cervix/virology , Triage , Uterine Cervical Dysplasia/metabolism , Uterine Cervical Dysplasia/pathology , Uterine Cervical Dysplasia/virology
3.
Biochemistry (Mosc) ; 83(10): 1222-1230, 2018 Oct.
Article in English | MEDLINE | ID: mdl-30472959

ABSTRACT

As key regulators of cell signaling, protein kinases (PKs) are attractive targets for therapeutic intervention in a variety of diseases. Herein, we report for the first time the inhibitory activity of polycyclic peptides, particularly, derivatives of glycopeptide antibiotics teicoplanin and eremomycin, against a panel of 12 recombinant human protein kinases and two protein kinases (CK1 and CK2) isolated from rat liver. Several of the investigated compounds inhibited various PKs with IC50 values below 10 µM and caused >90% suppression of the enzyme activity at 10 µM concentration. Kinetic analysis of the protein kinase CK2α inhibition by the teicoplanin aglycon analogue (7) demonstrated the non-competitive mechanism of inhibition (with regard to ATP). Interestingly, the inhibitory activity of some investigated compounds correlated with the earlier described antiviral activity against HIV, HCV, and other corona- and flaviviruses.


Subject(s)
Anti-Bacterial Agents/chemistry , Glycopeptides/chemistry , Protein Kinase Inhibitors/metabolism , Protein Kinases/metabolism , Animals , Antiviral Agents/chemistry , Antiviral Agents/metabolism , Antiviral Agents/pharmacology , HIV/physiology , Humans , Hydrophobic and Hydrophilic Interactions , Inhibitory Concentration 50 , Kinetics , Liver/metabolism , Protein Kinase Inhibitors/chemistry , Protein Kinases/chemistry , Protein Kinases/genetics , Rats , Recombinant Proteins/biosynthesis , Recombinant Proteins/chemistry , Teicoplanin/chemistry , Virus Replication/drug effects
4.
Eur Rev Med Pharmacol Sci ; 21(10): 2504-2511, 2017 05.
Article in English | MEDLINE | ID: mdl-28617533

ABSTRACT

OBJECTIVE: The aim of the study was to evaluate the relationship between bacterial vaginosis (BV) and relapse of cervical intraepithelial neoplasia grade 2 or more (CIN2+) after Loop electrosurgical excision procedure (LEEP). PATIENTS AND METHODS: One hundred four patients who underwent LEEP for CIN2+ were followed up every six months for three years. Fifty-three were negative for BV and fifty-one were positive. Each clinical control included Pap test, colposcopy, Amsel criteria test, HPV-DNA, and HPV-mRNA test. RESULTS: Patients' age, presence of BV, positivity to HPV-DNA and HPV-mRNA tests were analyzed. The average age of patients was 42.5 ± 8.92 years (median: 42.5; range from 27 to 58 years). The minimum follow-up was 6 months and maximum 36 months (average: 22.8 ± 4.53; median: 24). The 10% of the patients with HPV-mRNA test negative had relapsed, compared to 45% of patients with HPV-mRNA test positive. Among the 53 patients without BV the 20% had relapsed compared with 23% of 51 patients with diagnosis of BV. CONCLUSIONS: There is no evidence for higher percentage of relapse in patients with BV, submitted to excisional procedure for CIN2+ associated to HPV-m-RNA test positivity. There is only a correlation among BV and relapse of CIN2+ lesions after LEEP.


Subject(s)
Neoplasm Recurrence, Local/etiology , Papillomavirus Infections/complications , Uterine Cervical Dysplasia/surgery , Uterine Cervical Neoplasms/surgery , Vaginosis, Bacterial/complications , Adult , Aged , Colposcopy , Electrosurgery , Female , Humans , Middle Aged , Neoplasm Recurrence, Local/epidemiology , Papanicolaou Test , Papillomaviridae/isolation & purification , Papillomavirus Infections/virology , Pregnancy , RNA, Messenger/genetics , Uterine Cervical Neoplasms/virology , Vaginal Smears , Young Adult , Uterine Cervical Dysplasia/virology
5.
Eur Rev Med Pharmacol Sci ; 21(9): 2255-2260, 2017 05.
Article in English | MEDLINE | ID: mdl-28537655

ABSTRACT

OBJECTIVE: To compare hysterectomy and levonorgestrel intra-uterine system (LNG-IUS) for the treatment of abnormal uterine bleeding (AUB) and iron deficiency anemia. PATIENTS AND METHODS: Retrospective study evaluating quality of life, sexual function, satisfaction and blood hemoglobin concentration improvement in 60 pre-menopausal women treated with hysterectomy or LNG-IUS. All analysis was performed with statistical software SPSS 21.0 (SPSS Inc., Chicago, IL, USA). RESULTS: Despite superior control of bleeding and dysmenorrhea observed after hysterectomy, LNG-IUS showed similar impact on blood hemoglobin levels, quality of life, satisfaction and sexual function resulting more cost-effective. CONCLUSIONS: In the absence of contraindications, LNG-IUS should always be the first therapeutic choice for chronic AUB. Surgical treatment must be considered as an "extrema ratio".


Subject(s)
Hysterectomy/psychology , Intrauterine Devices, Medicated , Levonorgestrel/administration & dosage , Menorrhagia/drug therapy , Quality of Life , Adult , Female , Humans , Middle Aged , Retrospective Studies
6.
Eur Rev Med Pharmacol Sci ; 20(20): 4236-4242, 2016 10.
Article in English | MEDLINE | ID: mdl-27831652

ABSTRACT

OBJECTIVE: The incidence of abnormal cervical cytology in pregnancy is similar to that reported for non-pregnant women. Furthermore, 1% of pregnant women annually screened for cervical cancer will be diagnosed with cervical intraepithelial neoplasia (CIN) of various degrees. For this reason, Pap smear should be performed in the first trimester of pregnancy. The persistence of HR-HPV infection is related to the development of CIN. However, the relationship between CIN and HR-HPV infection during pregnancy and postpartum can hardly be found. The aim of this work was to assess the proper management of abnormal cytology during and after pregnancy evaluating regression rate, persistence rate and risk of progression and the predictive role of HPV molecular tests. PATIENTS AND METHODS: Patients with abnormal cervical cytology were followed-up using colposcopy and colposcopy-directed biopsies every 12 weeks. Molecular tests were performed at the moment of the cytological diagnosis. Patients not treated in pregnancy were re-evaluated with cytology, colposcopy, biopsies, HPV-DNA test and HPV-mRNA test for a final diagnosis 8 weeks postpartum. Women with a persistent CIN 2-3 lesion at this follow-up check, underwent an excisional procedure by LEEP and then re-evaluated every 6 months for a year. RESULTS: HPV-DNA test showed a sensitivity of 90.5% and a negative predictive value of 96.4%. Specificity and positive predictive values were 67.9% and 43.2%, respectively. For HPV-mRNA test, a sensitivity of 76.2% and a NPV of 93.9% were found; specificity and PPV were 98.7% and 94.1% respectively. CONCLUSIONS: An observational management based on the use of molecular test and particularly HPV-mRNA test for its higher specificity, is a reasonable possibility in the follow-up of CIN2/3 lesions during pregnancy.


Subject(s)
Papillomavirus Infections/diagnosis , Pregnancy Complications, Neoplastic/diagnosis , RNA, Messenger , Uterine Cervical Neoplasms/diagnosis , Adult , Colposcopy , Female , Humans , Papillomaviridae/genetics , Pregnancy , Uterine Cervical Dysplasia
7.
Eur Rev Med Pharmacol Sci ; 20(17): 3528-34, 2016 09.
Article in English | MEDLINE | ID: mdl-27649651

ABSTRACT

OBJECTIVE: The increased use of the intrauterine contraception (IUC) in female population and its probable relationship with cervical squamous intraepithelial lesions and cervical cancer make necessary clarify the possible interaction between the device and the pre-neoplastic lesions. PATIENTS AND METHODS: Seven hundred and eighty-nine patients users of IUC and 1491 patients ever users of IUC were followed every 6 months for 3 years. Each clinical control included Papanicolau test, colposcopy, HPV-DNA test and HPV-mRNA test. Also, in patients IUC users we analyzed the type of device, years of use and average age. RESULTS: Cytological sampling, histological examination, HPV-DNA test and HPV-mRNA test showed that there are not significantly differences between patients with or without IUC. CONCLUSIONS: None difference arose regarding persistence and progression between patients IUC users and IUC no users, for this reason, intrauterine contraception does not seem to be a co-causal factor in the possible development of cervical cancer.


Subject(s)
Intrauterine Devices , Papillomavirus Infections/diagnosis , Uterine Cervical Dysplasia , Uterine Cervical Neoplasms , Adult , Female , Humans , Papillomaviridae/genetics , Young Adult
8.
Eur Rev Med Pharmacol Sci ; 19(14): 2528-36, 2015.
Article in English | MEDLINE | ID: mdl-26221878

ABSTRACT

OBJECTIVE: Traditional surgery presents some disadvantages, such as the necessity for general anesthesia, hemorrhage, recurrence of pathology, and the possible onset of dyspareunia due to an excessive scarring. CO2 laser surgery might resolve these problems and might be employed in a wider range of clinical indications than usual. We examined the results of CO2 laser surgery in patients affected by benign pathologies and congenital malformations of the female lower genital tract. PATIENTS AND METHODS: In this observational study, we enrolled 49 women who underwent CO2 laser surgery for the following indications: Bartholin's gland cyst, imperforate hymen, vaginal septum, Nabothian cyst, and vaginal polyps. Feasibility, cost-effectiveness, complication rate, recurrence rate, short- and long-term outcomes were assessed. RESULTS: All procedures were carried out in a short operative time, without any intraoperative complications. Only 1 (2.0%) out of 49 patients required a hemostatic suture for bleeding. Postoperative period was uneventful in all patients, except 6 (12.2%) out of 49 patients who reported pain one day after surgery, successfully treated with paracetamol. Healing was rapid and excellent in all cases; no wound infection, scarring or stenosis were noticed. Preoperative symptoms reduced or disappeared in all cases. No recurrence was observed and no re-intervention was needed. CONCLUSIONS: CO2 laser surgery provides several advantages over traditional surgery, as its systematic use in treating pre-invasive, benign, and congenital pathologies of the female lower genital tract reduces patient discomfort, improves short- and long-term outcomes, and optimizes cost-effectiveness.


Subject(s)
Cysts/surgery , Hymen/abnormalities , Laser Therapy/methods , Lasers, Gas/therapeutic use , Menstruation Disturbances/surgery , Polyps/surgery , Vagina/surgery , Adolescent , Adult , Ambulatory Care/methods , Bartholin's Glands/pathology , Bartholin's Glands/surgery , Congenital Abnormalities , Cysts/diagnosis , Feasibility Studies , Female , Follow-Up Studies , Genitalia, Female/abnormalities , Genitalia, Female/pathology , Genitalia, Female/surgery , Humans , Hymen/surgery , Menstruation Disturbances/diagnosis , Office Visits , Polyps/diagnosis , Vagina/abnormalities , Vagina/pathology , Young Adult
9.
Eur Rev Med Pharmacol Sci ; 19(3): 365-71, 2015.
Article in English | MEDLINE | ID: mdl-25720704

ABSTRACT

OBJECTIVE: To compare diagnostic accuracy of sonohysterography vs hysteroscopy in patients with benign uterine endocavitary findings. PATIENTS AND METHODS: This retrospective study evaluated 202 patients submitted to sonohysterography after transvaginal ultrasound examination suspicious for uterine endocavitary findings. Cytological sample was taken and analyzed from the fluid used to distend the uterine cavity. Of 202 patients enrolled for this study, 86 patients underwent gynaecological surgery, of whom 77 were treated with operative hysteroscopy and 9 with other gynaecological surgical techniques. Statistical analysis was performed to evaluate diagnostic agreement between sonohysterography vs hysteroscopy and cytology vs histology. RESULTS: Diagnostic concordance between sonohysterography and hysteroscopy was significant (k value 0.87). The correlation between cytological and histological findings had a moderate level of concordance (k value 0.49). CONCLUSIONS: Sonohysterography provides a diagnostic accuracy as well as hysteroscopy, therefore, it could be considered an alternative procedure in the diagnosis of benign uterine endocavitary findings.


Subject(s)
Electrocoagulation/methods , Electrocoagulation/standards , Hysteroscopy/methods , Hysteroscopy/standards , Uterus/surgery , Adult , Aged , Aged, 80 and over , Female , Humans , Hysterosalpingography/methods , Hysterosalpingography/standards , Middle Aged , Pregnancy , Retrospective Studies
10.
Eur Rev Med Pharmacol Sci ; 18(19): 2949-52, 2014 Oct.
Article in English | MEDLINE | ID: mdl-25339491

ABSTRACT

OBJECTIVE: Vulvar intraepithelial neoplasia (VIN) is a premalignant lesion of the vulva. The incidence of VIN is increasing. The surgery is currently the gold standard therapy for VIN, but Imiquimod could be a completion to surgery. The aim of this study is to compare the overall complete response, the recurrence rate and the risk factors for recurrence among two groups of patients: women with high grade VIN underwent surgery and patients treated with surgery plus Imiquimod. PATIENTS AND METHODS: 80 patients with histologically diagnosed VIN 2/3 were enrolled in this prospective study. Our patients were divided into two groups: 40 women underwent surgery (A) and 40 patients were treated with surgery plus Imiquimod (B). All women had a 5-year follow-up. Recurrence rate and complete response were evaluated. The following patients' characteristics were analyzed: smoke, multifocal disease, multicentric disease, degree of the lesion. RESULTS: In the group A recurrence rate was 44.8%, in the group B it was 48.4%. In both groups the presence of multifocal lesions (p = 0.02) and VIN 3 (p = 0.006) before treatment was associated with a higher risk of recurrence. CONCLUSIONS: This study found that surgery remains the principal approach for VIN with regard to relapse and complete response since the treatment with Imiquimod associated with surgery didn't show a lower recurrence rate. Although the surgical treatments remain the best therapeutic option for VIN with regard to recurrence and overall complete response, the combined therapy seems to be an interesting modality, but further studies are needed.


Subject(s)
Aminoquinolines/administration & dosage , Antineoplastic Agents/administration & dosage , Carcinoma in Situ/drug therapy , Carcinoma in Situ/surgery , Vulvar Neoplasms/drug therapy , Vulvar Neoplasms/surgery , Administration, Topical , Carcinoma in Situ/diagnosis , Combined Modality Therapy , Female , Humans , Imiquimod , Middle Aged , Neoplasm Recurrence, Local/diagnosis , Neoplasm Recurrence, Local/drug therapy , Neoplasm Recurrence, Local/surgery , Prospective Studies , Risk Factors , Vulvar Neoplasms/diagnosis
12.
Eur Rev Med Pharmacol Sci ; 17(7): 936-40, 2013 Apr.
Article in English | MEDLINE | ID: mdl-23640441

ABSTRACT

BACKGROUND: Vulvar intraepithelial neoplasia (VIN) is a premalingnant condition. For long time, surgery was considered the first-line therapy in the treatment of high grade VIN. Imiquimod was recently introduced as an alternative to surgery. AIM: To compare the overall complete response, the recurrence rate and the risk factors for relapse among patients with VIN 2/3 treated with Imiquimod or surgical excision. PATIENTS AND METHODS: Eighty women who had histological diagnosis of VIN 2 and VIN 3 were enrolled in this prospective study. Patients immunocompromised, with recurrent VIN, with well differentiated type VIN or VIN 1 and women treated more than once were excluded from the study. Patients were divided into two groups: group A was treated with Imiquimod, group B underwent surgical excision. Patients' characteristics analyzed were: age, smoking, degree of the primary lesion, state of margins, multifocal disease. We have evaluated the recurrence rate, the relapse rate, and the overall complete response, considering as recurrence the onset of a lesion after an initial complete response to Imiquimod and/or after the surgical treatment and as relapse all patients who had a recurrence plus those with medical treatment failure. RESULTS: Multifocal lesions (p = 0.03) and VIN 3 (p = 0.002) were associated with a higher risk of relapse. The recurrence rate was higher in the group B (p = 0.009), but the relapse rate was higher in the group A (p = 0.04). The overall complete response was better in the group B (p = 0.04). CONCLUSIONS: Although the advent of new medical options can decrease the morbidity associated with invasive surgical procedures, surgical treatments remain the best treatment modality for VIN with regard to relapse and overall complete response.


Subject(s)
Aminoquinolines/administration & dosage , Antineoplastic Agents/administration & dosage , Carcinoma in Situ/therapy , Vulvar Neoplasms/therapy , Adult , Carcinoma in Situ/pathology , Female , Follow-Up Studies , Humans , Imiquimod , Neoplasm Recurrence, Local , Ointments , Vulvar Neoplasms/pathology
13.
Curr Med Chem ; 20(5): 671-93, 2013.
Article in English | MEDLINE | ID: mdl-23210774

ABSTRACT

Protein kinase CK2 (Casein Kinase 2) is an essential, ubiquitous and highly pleiotropic protein kinase, implicated in several human diseases. In the last decade, several inhibitors of CK2, have been discovered and characterized to be ATP-competitive compounds. However, only one of them, CX-4945, has recently completed Phase I clinical trial as potential anticancer drug. In this review, we report all chemical classes of CK2 inhibitors available in literature, focusing our attention on conventional ATP-competitive and on non ATP-competitive inhibitors, which could represent a new frontier in CK2 inhibition and, consequently, a promising field of study in discovering new drug candidates.


Subject(s)
Casein Kinase II/antagonists & inhibitors , Casein Kinase II/chemistry , Protein Kinase Inhibitors/chemistry , Protein Kinase Inhibitors/pharmacology , Animals , Humans , Models, Molecular
14.
Biochim Biophys Acta ; 1824(12): 1366-73, 2012 Dec.
Article in English | MEDLINE | ID: mdl-22828320

ABSTRACT

Analyses of human phosphoproteome based on primary structure of the aminoacids surrounding the phosphor Ser/Thr suggest that a significant proportion of phosphosites is generated by a restricted number of acidophilic kinases, among which protein kinase CK2 plays a prominent role. Recently, new acidophilic kinases belonging to the Polo like kinase family have been characterized, with special reference to PLK1, PLK2, and PLK3 kinases. While some progress has been made in deciphering the PLK1-dependent phosphoproteome, very little is known about the targets of PLK2 and PLK3 kinases. In this report by using an in vitro approach, consisting of cell lysate phosphorylation, phosphoprotein separation by 2D gel electrophoresis and mass spectrometry, we describe the identification of new potential substrates of PLK2 and PLK3 kinases. We have identified and validated as in vitro PLK2 and PLK3 substrates HSP90, GRP-94, ß-tubulin, calumenin, and 14-3-3 epsilon. The phosphosites generated by PLK3 in these proteins have been identified by mass spectrometry analysis to get new insights about PLKs specificity determinants. These latter have been further corroborated by an in silico analysis of the PLKs substrate binding region.


Subject(s)
Protein Serine-Threonine Kinases/metabolism , Amino Acid Sequence , Cells, Cultured , Humans , Mass Spectrometry , Models, Molecular , Molecular Sequence Data , Phosphorylation , Protein Interaction Domains and Motifs , Structural Homology, Protein , Substrate Specificity , Tumor Suppressor Proteins
15.
Biotechniques ; 53(1)2012 Jul 01.
Article in English | MEDLINE | ID: mdl-26307252

ABSTRACT

While the great majority of Ser/Thr protein kinases are basophilic or proline directed, a tiny minority is acidophilic. The most striking example of such "acidophilic" kinases is CK2, whose sites are specified by numerous acidic residues surrounding the target one. However PLK2 and PLK3 kinases recognize an acidic consensus similar to CK2 when tested on peptide libraries. Here we describe optimal buffer conditions for PLK2 and 3 kinase activity assays and tools such as using GTP as a phosphate donor and the specific inhibitors CX-4945 and BI 2536, useful to discriminate between acidic phosphosites generated either by CK2 or by PLK2/PLK3.


Subject(s)
Protein Serine-Threonine Kinases/classification , Protein Serine-Threonine Kinases/metabolism , Buffers , HEK293 Cells , Humans , Hydrogen-Ion Concentration , Naphthyridines , Phenazines , Phosphorylation , Protein Kinase Inhibitors , Protein Serine-Threonine Kinases/antagonists & inhibitors , Protein Serine-Threonine Kinases/chemistry , Pteridines , Transfection
16.
Curr Med Chem ; 18(19): 2867-84, 2011.
Article in English | MEDLINE | ID: mdl-21651492

ABSTRACT

Casein kinase 2 (CK2) is a ubiquitous, highly pleiotropic and essential protein kinase whose abnormally high constitutive activity has been implicated in several human diseases. In the last decade, several ATP competitive inhibitors of CK2, characterized by an in vitro activity that ranges from micromolar to nanomolar, have been discovered. However, until now only one drug candidate has been entered in Phase I clinical trial as a potential anticancer drug. Why this constitutively active kinase is so undruggable? Can ATP competitive inhibitors be considered the most promising drug candidates for the near future? In this review, we would like to underline how targeting binding sites outside the conventional ATP-binding could represent a new promising strategy to inhibit CK2 activity and, consequently, bear a great potentiality in discovering new drug candidates.


Subject(s)
Casein Kinase II/antagonists & inhibitors , Casein Kinase II/chemistry , Drug Discovery/methods , Protein Kinase Inhibitors/chemistry , Protein Kinase Inhibitors/pharmacology , Animals , Binding Sites/drug effects , Casein Kinase II/metabolism , Humans , Models, Molecular
17.
Aliment Pharmacol Ther ; 28(4): 422-30, 2008 Aug 15.
Article in English | MEDLINE | ID: mdl-18498447

ABSTRACT

BACKGROUND: Iron-deficiency anaemia (IDA) is common in premenopausal women and menorrhagia is often considered responsible. Aim To evaluate prospectively the occurrence of bleeding and iron malabsorption related gastrointestinal (GI) diseases likely responsible of IDA in premenopausal women regardless of their menstrual flow. METHODS: One hundred and eighty-seven premenopausal women [median age 39 (20-56) years] irrespective of their menstrual flow underwent gastroscopy with gastric and duodenal biopsies and faecal occult blood test (FOBT). Patients over 50 years, positive 1st degree family history for colonic cancer and/or positive FOBT underwent colonoscopy too. RESULTS: Menorrhagia was present in 67.4% of premenopausal women. A possible GI cause of IDA was found in 129/187 patients; in 65.2% the cause of IDA was possibly related to iron malabsorption diseases. GI bleeding as a cause of IDA was found in seven patients. An exclusive GI cause of IDA was found in 26.7% of premenopausal women, whereas a possible GI cause was observed in 34.2% of menorrhagic premenopausal women. The main risk factor for the presence of likely GI causes was the presence of upper GI symptoms (OR 5.2: 95% CI = 1.6-16.4). CONCLUSIONS: Most premenopausal women had a possible upper GI cause of IDA because of diseases related to iron malabsorption. Menorrhagia and a GI cause coexist in one-third of women with iron-deficiency anaemia.


Subject(s)
Anemia, Iron-Deficiency/etiology , Malabsorption Syndromes/complications , Menorrhagia/complications , Menstruation/physiology , Occult Blood , Adult , Age Factors , Aged , Aged, 80 and over , Female , Ferritins/blood , Gastroscopy , Humans , Middle Aged , Premenopause/physiology , Prospective Studies , Risk Factors , Women's Health
18.
G Chir ; 20(8-9): 335-7, 1999.
Article in Italian | MEDLINE | ID: mdl-10444918

ABSTRACT

The Authors report their experience of two patients with bile leakage following videocholecystectomy (VLC) among a series of 163 cases. Reviewing the Literature, they analyze possible causes and mechanisms of bile spillage occurring after VCL. They also suggest some guidelines for a safe VLC, stressing the importance of the routinary placement of the sub-hepatic drainage to remove 48 hours to early detect possible bile leakages after surgery.


Subject(s)
Bile , Cholecystectomy, Laparoscopic/adverse effects , Cholelithiasis/diagnosis , Cholangiography , Cholelithiasis/surgery , Female , Humans , Intraoperative Complications , Male
19.
Hum Reprod ; 11(1): 117-20, 1996 Jan.
Article in English | MEDLINE | ID: mdl-8671172

ABSTRACT

To investigate the role of the 'male factor' in the pathogenesis of recurrent spontaneous abortion (RSA), especially sperm morphology abnormalities, 120 previously selected couples with unexplained RSA were studied for sperm parameters retrospectively and prospectively. The patients were subdivided into three subgroups, depending on their reproductive outcome during the 3 years of follow-up study: (i) 48 RSA couples who achieved a successful pregnancy; (ii) 39 RSA couples who experienced further abortions, and (iii) 33 RSA couples who experienced infertility during the follow-up period. A semen analysis was performed twice at the time of inclusion in this study, and twice again during the 3 year follow-up period. No significant differences in semen parameters were observed between RSA males and fertile controls. Instead, significant differences were observed between the group of RSA couples who experienced infertility during the follow-up and the other two groups (RSA couples who achieved successful pregnancy and RSA couples who experienced miscarriages and no live birth during the follow-up) for sperm concentration (P < 0.01 and P < 0.01 respectively), sperm motility (P < 0.01 and P < 0.01 respectively) and sperm morphology abnormalities (P < 0.01 and P < 0.01 respectively). Sperm morphology abnormalities do not seem to be involved in determining RSA; instead, they are an aetiological factor in determining infertility in patients, along with the other semen parameters, in the RSA couple's subsequent reproductive life. Semen analysis is an important test in the clinical management of RSA couples.


Subject(s)
Abortion, Habitual/etiology , Semen/physiology , Spermatozoa/abnormalities , Spermatozoa/physiology , Abortion, Habitual/pathology , Adult , Female , Follow-Up Studies , Humans , Infertility/etiology , Infertility/pathology , Male , Pregnancy , Sperm Count , Sperm Motility
20.
Minerva Gastroenterol Dietol ; 39(2): 49-55, 1993 Jun.
Article in Italian | MEDLINE | ID: mdl-8364101

ABSTRACT

The authors report their views on the treatment of unoperable neoplastic esophago-gastric stenoses with Nitinol prostheses. Despite a number of advantages (reduced trauma, greater tolerability) in relation to plastic prostheses, the paper highlights some problems (difficulty of unfastening, incomplete opening) which may be eliminated by improved materials.


Subject(s)
Alloys , Esophageal Stenosis/surgery , Prostheses and Implants , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged
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