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1.
Nutrients ; 16(5)2024 Feb 25.
Artigo em Inglês | MEDLINE | ID: mdl-38474770

RESUMO

Sepsis, a leading cause of death worldwide, is a harmful inflammatory condition that is primarily caused by an endotoxin released by Gram-negative bacteria. Effective targeted therapeutic strategies for sepsis are lacking. In this study, using an in vitro and in vivo mouse model, we demonstrated that CM1, a derivative of the natural polyphenol chrysin, exerts an anti-inflammatory effect by inducing the expression of the ubiquitin-editing protein TNFAIP3 and the NAD-dependent deacetylase sirtuin 1 (SIRT1). Interestingly, CM1 attenuated the Toll-like receptor 4 (TLR4)-induced production of inflammatory cytokines by inhibiting the extracellular-signal-regulated kinase (ERK)/MAPK and nuclear factor kappa B (NF-κB) signalling pathways. In addition, CM1 induced the expression of TNFAIP3 and SIRT1 on TLR4-stimulated primary macrophages; however, the anti-inflammatory effect of CM1 was abolished by the siRNA-mediated silencing of TNFAPI3 or by the genetic or pharmacologic inhibition of SIRT1. Importantly, intravenous administration of CM1 resulted in decreased susceptibility to endotoxin-induced sepsis, thereby attenuating the production of pro-inflammatory cytokines and neutrophil infiltration into the lung compared to control mice. Collectively, these findings demonstrate that CM1 has therapeutic potential for diverse inflammatory diseases, including sepsis.


Assuntos
Flavonoides , Sepse , Choque Séptico , Camundongos , Animais , Sirtuína 1/metabolismo , Receptor 4 Toll-Like/metabolismo , Lipopolissacarídeos/farmacologia , NF-kappa B/metabolismo , Choque Séptico/tratamento farmacológico , Endotoxinas , Citocinas/metabolismo , Sepse/tratamento farmacológico , Anti-Inflamatórios/uso terapêutico
2.
Biomedicines ; 11(10)2023 Oct 23.
Artigo em Inglês | MEDLINE | ID: mdl-37893241

RESUMO

Endometriosis, which is the presence of endometrial stroma and glands outside the uterus, is one of the most frequently diagnosed gynecologic diseases in reproductive women. Patients with endometriosis suffer from various pain symptoms such as dysmenorrhea, dyspareunia, and chronic pelvic pain. The pathophysiology for chronic pain in patients with endometriosis has not been fully understood. Altered inflammatory responses have been shown to contribute to pain symptoms. Increased secretion of cytokines, angiogenic factors, and nerve growth factors has been suggested to increase pain. Also, altered distribution of nerve fibers may also contribute to chronic pain. Aside from local contributing factors, sensitization of the nervous system is also important in understanding persistent pain in endometriosis. Peripheral sensitization as well as central sensitization have been identified in patients with endometriosis. These sensitizations of the nervous system can also explain increased incidence of comorbidities related to pain such as irritable bowel disease, bladder pain syndrome, and vulvodynia in patients with endometriosis. In conclusion, there are various possible mechanisms behind pain in patients with endometriosis, and understanding these mechanisms can help clinicians understand the nature of the pain symptoms and decide on treatments for endometriosis-related pain symptoms.

3.
Medicine (Baltimore) ; 102(11): e33271, 2023 Mar 17.
Artigo em Inglês | MEDLINE | ID: mdl-36930110

RESUMO

The aim of this study was to assess the therapeutic efficacy of a cisplatin and vinorelbine combination as second- or higher-line palliative chemotherapy in patients with advanced ovarian cancer. We retrospectively reviewed the medical records of patients with advanced ovarian cancer who were treated with cisplatin (60 mg/m2 on day 1) and vinorelbine (25 mg/m2 on days 1 and 8) every 3 weeks between January 2004 and March 2021. Treatment responses, progression-free survival (PFS), and overall survival (OS) were assessed; laboratory data were reviewed to determine toxicity. Thirty-two patients with advanced ovarian cancer were treated with a combination of vinorelbine and cisplatin. The objective response rate (ORR) was 18.8% and the disease control rate was 75.1%. The median PFS was 4.13 months (95% confidence interval [CI], 2.4-5.8 months). The median OS was 56.9 months (95% CI, 50.5-63.7 months). The ORR (42.9% vs 9.1%; P = .035) was higher in the platinum-sensitive group than in the platinum-resistant group. The median PFS tended to be longer in the platinum-sensitive group (5.3 vs 3.8 months; P = .339) and the median OS was significantly longer in the platinum-sensitive group than in the platinum-resistant group (69.6 vs 24 months; P < .001). All patients developed hematological toxicities, with 56% experiencing grade 3 to 4 neutropenia. Two (6.2%) patients developed febrile neutropenia, but no treatment-related death occurred. This combination therapy may be effective in patients with heavily treated advanced ovarian cancer, particularly in platinum-sensitive patients.


Assuntos
Neoplasias Pulmonares , Neoplasias Ovarianas , Humanos , Feminino , Vinorelbina/uso terapêutico , Cisplatino/efeitos adversos , Vimblastina/efeitos adversos , Estudos Retrospectivos , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Carcinoma Epitelial do Ovário/tratamento farmacológico , Carcinoma Epitelial do Ovário/etiologia , Platina/uso terapêutico , Neoplasias Ovarianas/etiologia , Neoplasias Pulmonares/tratamento farmacológico
4.
Medicine (Baltimore) ; 101(31): e29726, 2022 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-35945797

RESUMO

To evaluate the efficacy and safety of a gonadotropin-releasing hormone (GnRH) agonist for treating large-sized submucosal leiomyoma before hysteroscopic myomectomy. The data were retrospectively collected from patients who underwent a hysteroscopic myomectomy for a submucosal leiomyoma >3.5 cm in size from January 2009 to December 2018. The patients were divided into the GnRH group and the control group according to whether they were pretreated before surgery. A total of 61 patients were included in the study, 31 in the GnRH agonist group and 30 in the control group. At diagnosis, the maximum leiomyoma diameter was similar between the 2 groups (4.67 ± 0.6 cm in the GnRH agonist group vs 3.82 ± 0.6 cm in the control group, P = .061). After pretreatment with the GnRH agonist, the maximum diameter was significantly smaller in the GnRH agonist group compared to the control group (3.82 ± 0.6 vs 4.33 ± 0.8 cm, respectively, P = .004). The leiomyoma volume in the GnRH agonist group decreased by 55.6%, from 41.68 ± 15.7 to 23.19 ± 10.4 cm3, which led to significant differences in leiomyoma volume between the 2 groups (23.19 ± 10.4 cm3 in the GnRH agonist group vs 33.22 ± 24.7 cm3 in the control group, P = .042). The GnRH agonist group showed a shorter operation time (37.7 vs 43.9 minutes, P = .040) and less uterine distention media was used (6800 vs 9373.3 mL, P = .037) compared to the control group. Postoperative complications such as estimated blood loss, remnant leiomyoma, and recurrence were similar between the 2 groups. Treatment with a GnRH agonist before hysteroscopic myomectomy for large submucosal leiomyoma might decrease the volume of the leiomyoma, reduce operation time, and the amount of uterine-distension media used without surgical complications.


Assuntos
Leiomioma , Miomectomia Uterina , Neoplasias Uterinas , Feminino , Hormônio Liberador de Gonadotropina , Humanos , Leiomioma/tratamento farmacológico , Leiomioma/cirurgia , Estudos Retrospectivos , Neoplasias Uterinas/tratamento farmacológico , Neoplasias Uterinas/cirurgia
5.
Gynecol Obstet Invest ; 87(1): 79-88, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35500567

RESUMO

OBJECTIVE: In the present study, we attempted to identify the effects of fenofibrate on human cervical cancer cells. METHODS: The cytotoxicity of fenofibrate in cervical cancer cells was determined by Cell Counting Kit-8. Immunoblotting assay was used to determine the protein expression of caspase-3, poly ADP-ribose polymerase cleavage, B-cell lymphoma 2 family protein expression, microtubule-associated protein 1A/1B-light chain 3 (LC3), as well as cyclins and cyclin-dependent kinases. Immunofluorescence imaging was used to determine the expression of cleaved caspase-3 and LC3. Flow cytometry was used to determine cell cycle and apoptosis. RESULTS: We first showed that fenofibrate treatment reduced cell viability in HeLa cervical cancer cells in a dose-dependent manner at 24 h and 48 h. Importantly, fenofibrate-induced cell death was mediated through cell cycle arrest in the G0-G1 phase and caspase-dependent apoptosis. Moreover, fenofibrate also induced autophagy activation in a dose-dependent manner and pharmacological inhibition of autophagy led to increase of sub-G1 phase and caspase-dependent cell death in HeLa cells. CONCLUSION: In conclusion, these data demonstrated that fenofibrate initially induced cell cycle arrest, followed by caspase-3-dependent cell death in cervical cancer HeLa cells. However, fenofibrate also induced autophagy activation, which is closely related to the survival of diverse cancer cells, thus reducing the anticancer effects of fenofibrate. Therefore, the combination of an autophagy inhibitor and fenofibrate might have the potential to become a new therapeutic strategy for cervical cancer.


Assuntos
Apoptose , Pontos de Checagem do Ciclo Celular , Fenofibrato , Neoplasias do Colo do Útero , Caspase 3/metabolismo , Feminino , Fenofibrato/farmacologia , Células HeLa , Humanos , Neoplasias do Colo do Útero/patologia
6.
BMC Pregnancy Childbirth ; 22(1): 113, 2022 Feb 10.
Artigo em Inglês | MEDLINE | ID: mdl-35144573

RESUMO

BACKGROUND: In twin pregnancies, the cord prolapse of either fetus during the pre-viable period leads to fetal death but can also cause an intrauterine infection, leading to death or prematu-re birth of the remaining fetus. However, there are no validated protocols to prolong the gestational period or decrease the morbidity and mortality of the remaining fetus. CASE PRESENTATION: The present cases were PPROM and cord prolapse very early during the second trimester (around 17 weeks in the first case and 19 weeks in the second case). The first fetus was evacuated, and cervical cerclage was performed at 23 and 20 weeks in the two cases, respectively. After maintaining the pregnancy, the second baby was born around 27 and 39 weeks in the first and second cases, respectively. The delivery interval between the first and second fetuses was 46 days in the first case and 126 days in the second case. CONCLUSION: If cord prolapse is identified at a pre-viable time in twin fetuses, evacuation and cerclage should be performed as soon as possible after the cord prolapse to reduce intrauterine infection and increase the survival chances of the remaining fetus.


Assuntos
Cerclagem Cervical/métodos , Parto Obstétrico/métodos , Ruptura Prematura de Membranas Fetais/cirurgia , Segundo Trimestre da Gravidez , Gravidez de Gêmeos , Cordão Umbilical/cirurgia , Adulto , Feminino , Humanos , Nascido Vivo , Gravidez , Resultado da Gravidez , Prolapso
7.
Endocrinol Metab (Seoul) ; 36(3): 661-671, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-34154043

RESUMO

BACKGROUND: The nature and role of the mitochondrial stress response in adipose tissue in relation to obesity are not yet known. To determine whether the mitochondrial unfolded protein response (UPRmt) in adipose tissue is associated with obesity in humans and rodents. METHODS: Visceral adipose tissue (VAT) was obtained from 48 normoglycemic women who underwent surgery. Expression levels of mRNA and proteins were measured for mitochondrial chaperones, intrinsic proteases, and components of electron-transport chains. Furthermore, we systematically analyzed metabolic phenotypes with a large panel of isogenic BXD inbred mouse strains and Genotype-Tissue Expression (GTEx) data. RESULTS: In VAT, expression of mitochondrial chaperones and intrinsic proteases localized in inner and outer mitochondrial membranes was not associated with body mass index (BMI), except for the Lon protease homolog, mitochondrial, and the corresponding gene LONP1, which showed high-level expression in the VAT of overweight or obese individuals. Expression of LONP1 in VAT positively correlated with BMI. Analysis of the GTEx database revealed that elevation of LONP1 expression is associated with enhancement of genes involved in glucose and lipid metabolism in VAT. Mice with higher Lonp1 expression in adipose tissue had better systemic glucose metabolism than mice with lower Lonp1 expression. CONCLUSION: Expression of mitochondrial LONP1, which is involved in the mitochondrial quality control stress response, was elevated in the VAT of obese individuals. In a bioinformatics analysis, high LONP1 expression in VAT was associated with enhanced glucose and lipid metabolism.


Assuntos
Glucose , Gordura Intra-Abdominal , Tecido Adiposo/metabolismo , Animais , Feminino , Metabolismo dos Lipídeos , Camundongos , Obesidade/metabolismo
8.
Obstet Gynecol Sci ; 63(6): 700-708, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32814372

RESUMO

OBJECTIVE: This study identified the distribution of lymphocele, as well as the factors associated with lymphocele formation, in patients undergoing pelvic and/or para-aortic lymph node dissection (PLND and/or PALND) for gynecologic malignancies. METHODS: This study was retrospective, and data were collected from patients who underwent surgical procedures including lymphadenectomy due to gynecologic malignancies from March 2013 to May 2016. Lymphocele was defined by postoperative computer tomography within 2 weeks after surgery. RESULTS: A total of 116 patients underwent lymphadenectomy, of whom, 47 (42.0%) developed lymphocele and 14 (12.1%) had symptomatic lymphocele formation. The affecting factors of lymphocele formation were PLND concomitant with PALND and a large amount of blood loss ≥600 mL (P=0.030 and P=0.006, respectively). All clinical factors were not significantly different between patients with symptomatic and asymptomatic lymphocele. Lymphocele developed more frequently in the left side (67.1%) of the body compared to the right side (48.7%), and in the pelvic area (75.9%) compared to the para-aortic area (24.1%, P<0.001, both). CONCLUSION: Lymphocele formation is more prevalent in the left and pelvic area of the body compared to the right and paraaortic side. PLND concurrent with PALND and large amounts of blood loss were significant risk factors for lymphocele formation.

9.
Medicine (Baltimore) ; 99(17): e19931, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32332673

RESUMO

The aim of this study was to evaluate the outcomes of patients with advanced or recurrent ovarian cancer treated with cisplatin combined with topotecan as second- or higher-line palliative chemotherapy.We retrospectively reviewed the medical records of patients with advanced or recurrent ovarian cancer, who were treated with cisplatin (50 mg/m on day 1) and topotecan (0.75 mg/m on days 1-3). Treatment response, progression-free survival (PFS) and overall survival (OS) were analyzed, and laboratory data were reviewed to evaluate toxicities.Thirty one patients were treated with cisplatin and topotecan. The objective response rate (ORR) was 22.6%, and the disease control rate (DCR) was 61.3%. The median PFS was 3.7 months (95% confidence interval [CI], 2.3-5.2 months) and the median OS was 44.5 months (95% CI, 35.5-53.5 months). The ORR (33.3% vs. 0%; P = .012) was significantly better in the platinum-sensitive group compared to the platinum-resistant group. The median PFS was significantly longer in the platinum-sensitive group compared to the platinum-resistant group (7.7 vs 2.5 months; P < .001), and the median OS was also significantly longer in the platinum-sensitive group (46.6 vs 19.3 months; P < .001). Almost all of the patients reported some degree of hematological toxicity. A high rate of grade 3-4 neutropenia (87.1%) was observed. Grade 3-4 thrombocytopenia (41.9%) and febrile neutropenia (19.4%) were also seen.The results showed that cisplatin combined with topotecan, as second- or higher-line palliative chemotherapy for patients with advanced or recurrent ovarian cancer, might be effective, especially in the platinum-sensitive group. However, attention should be paid to the high hematological toxicity associated with this drug combination.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/normas , Tratamento Farmacológico/métodos , Neoplasias Ovarianas/tratamento farmacológico , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Cisplatino/normas , Cisplatino/uso terapêutico , Feminino , Humanos , Pessoa de Meia-Idade , Cuidados Paliativos/métodos , Recidiva , Estudos Retrospectivos , Topotecan/normas , Topotecan/uso terapêutico , Resultado do Tratamento
10.
Medicine (Baltimore) ; 99(1): e18653, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31895829

RESUMO

BACKGROUND: To compare the efficacy of serotonin-norepinephrine reuptake inhibitors (SNRIs) treatment for chemotherapy-induced peripheral neuropathy (CIPN) METHODS:: Two authors independently searched MEDLINE, Embase, Cochran Library, and Web of Science to identify and review articles published from January 1998 until December 2018 according to selection criteria. Outcomes were expressed as mean difference, the pooled odds ratio, or relative risk in a meta-analysis model. RESULTS: A total of 10 studies were included in this meta-analysis: 6 randomized-controlled studies and 4 observational studies. Meta-analysis showed that CIPN was improved after treatment with SNRI (standardized mean difference = 2.20; 95% confidence interval, 0.90-3.49; I = 93% in 3 randomized controlled studies). Somnolence and insomnia occurred in <15% of patients. Incidence of somnolence was lower than with pregabalin treatment, and insomnia was comparable to that in expectant management or pregabalin treatment. Incidence of nausea and vomiting was higher than in expectant management, but no significant difference was found when compared to expectant management. CONCLUSION: From the several available studies suitable for indirect comparison, SNRI shows excellent efficacy and tolerability to CIPN. SNRI could provide an important treatment option for CIPN.


Assuntos
Antineoplásicos/efeitos adversos , Doenças do Sistema Nervoso Periférico/tratamento farmacológico , Inibidores da Recaptação de Serotonina e Norepinefrina/uso terapêutico , Humanos , Doenças do Sistema Nervoso Periférico/induzido quimicamente
11.
BMC Cancer ; 19(1): 1078, 2019 Nov 09.
Artigo em Inglês | MEDLINE | ID: mdl-31706280

RESUMO

BACKGROUND: Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase-derived reactive oxygen species (ROS) not only can promote cancer progression, but also they have recently emerged as mediators of the mucosal immune system. However, the roles and clinical relevance of the collective or individual NADPH oxidase (NOX) family genes in cervical cancer have not been studied. METHODS: We investigated the clinical significance of the NOX family genes using data from 307 patients with cervical cancer obtained from The Cancer Genome Atlas. Bioinformatics and experimental analyses were performed to examine NOX family genes in cervical cancer patients. RESULTS: Dual Oxidase1 (DUOX1) and Dual Oxidase 2 (DUOX2) mRNA levels were upregulated 57.9- and 67.5-fold, respectively, in cervical cancer patients. The protein expression of DUOX1, DUOX2, and NOX2 also identified in cervical squamous cell carcinoma tissues. Especially, DUOX1 and DUOX2 mRNA levels were significantly increased in patients infected with human papillomavirus (HPV) 16. Moreover, high DUOX1 mRNA levels were significantly associated with both favorable overall survival and disease-free survival in cervical cancer patients. High NOX2 mRNA levels was significantly associated with favorable overall survival. Gene set enrichment analyses revealed that high DUOX1 and NOX2 expression was significantly correlated with the enrichment of immune pathways related to interferon (IFN)-alpha, IFN-gamma, and natural killer (NK) cell signaling. Cell-type identification by estimating relative subsets of known RNA transcript analyses indicated that the fraction of innate immune cells, including NK cells, monocytes, dendritic cells, and mast cells, was elevated in patients with high DUOX1 expression. CONCLUSIONS: DUOX1 and NOX2 expression are associated with mucosal immunity activated in cervical squamous cell carcinoma and predicts a favorable prognosis in cervical cancer patients.


Assuntos
Carcinoma de Células Escamosas/imunologia , Oxidases Duais/imunologia , Neoplasias do Colo do Útero/imunologia , Carcinoma de Células Escamosas/enzimologia , Carcinoma de Células Escamosas/genética , Oxidases Duais/biossíntese , Oxidases Duais/genética , Feminino , Humanos , Imunidade nas Mucosas , Pessoa de Meia-Idade , NADPH Oxidase 2/biossíntese , NADPH Oxidase 2/genética , NADPH Oxidase 2/imunologia , Prognóstico , RNA Mensageiro/genética , RNA Mensageiro/imunologia , Espécies Reativas de Oxigênio/imunologia , Taxa de Sobrevida , Neoplasias do Colo do Útero/enzimologia , Neoplasias do Colo do Útero/genética
12.
J Clin Med ; 8(7)2019 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-31261820

RESUMO

BACKGROUND: Although the loop electrosurgical excision procedure (LEEP) is a brief procedure, it can cause severe pain and discomfort to patients in the absence of adequate sedation. An admixture of ketamine with propofol (ketofol), may reduce patient movement due to insufficient sedation while providing hemodynamic and respiratory stability. This study evaluated the ability of two ratios of a propofol-ketamine combination, compared with propofol alone, to reduce patient movement during procedural sedation for LEEPs. METHODS: One hundred and twenty women scheduled for a LEEP were randomly assigned to three groups. Anesthesia was induced with 1 mg/kg propofol (group P), 1 mg/kg propofol and 0.33 mg/kg ketamine (group K1), or 1 mg/kg propofol and 0.66 mg/kg ketamine (group K2). The primary outcome was the incidence of adduction motion in the lower extremities during the procedure. The requirements for respiratory interventions, changes in vital signs, sedation score, additional anesthetic usage, and surgeon and patient satisfaction were also evaluated. RESULTS: The incidence of adduction motion was significantly lower in groups K1 and K2 than in group P (overall p-value <0.001) but did not differ significantly in groups K1 and K2. Group K2 needed more jaw thrust maneuvers than group K1. Additional propofol usage was lower and surgeon satisfaction scores higher in groups K1 and K2 than in group P. CONCLUSION: A propofol-ketamine combination is more effective than propofol alone in reducing procedural interference during LEEPs. However, increasing the dose of ketamine showed no additional benefit.

13.
Arch Gynecol Obstet ; 300(3): 737-750, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31172307

RESUMO

OBJECTIVE: To evaluate the effect of pretreatment with combined oral contraceptives (COC) on outcomes in women with polycystic ovary syndrome (PCOS) who underwent assisted reproductive technology for subfertility. METHODS: Two authors independently searched MEDLINE, EMBASE, and the Cochran Library to identify and review articles published from October 1995 until December 2018 according to selection criteria. Outcomes are expressed as mean difference and odds ratio (OR) in a meta-analysis model. RESULTS: A total of seven studies were included in this meta-analysis: one randomized controlled study and two prospective and four retrospective cohort studies. Meta-analysis showed that the COC pretreatment did not affect rate of clinical pregnancy (OR = 0.93, 95% confidence interval CI 0.65-1.34, I2 = 76%) or ovarian hyperstimulation syndrome (OR = 0.90, 95% CI 0.57-1.44, I2 = 0%). However, the rate of miscarriage in the COC group was significantly higher (OR = 1.33, 95% CI 1.02-1.72, I2 = 9%) and the rate of cumulative live birth was significantly lower compared with the control group (OR = 0.72, 95% CI 0.54-0.98, I2 = 55%). Subgroup analysis showed higher rates of miscarriage and lower rates of cumulative live birth in studies with a gonadotropin-releasing hormone (GnRH) antagonist protocol (OR = 1.69, 95% CI 1.17-2.44, I2 = 0% and OR = 0.38, 95% CI 0.29-0.50, respectively). CONCLUSION: Pretreatment with COC in women with PCOS before assisted reproductive technology may have an adverse effect on clinical outcomes, especially with a GnRH antagonist protocol.


Assuntos
Anticoncepcionais Orais Combinados/uso terapêutico , Infertilidade/terapia , Síndrome de Hiperestimulação Ovariana , Síndrome do Ovário Policístico/tratamento farmacológico , Técnicas de Reprodução Assistida , Aborto Espontâneo/epidemiologia , Anticoncepcionais Orais Combinados/administração & dosagem , Feminino , Humanos , Nascido Vivo , Indução da Ovulação/métodos , Gravidez , Resultado da Gravidez/epidemiologia , Taxa de Gravidez , Gravidez Múltipla
14.
Int J Mol Med ; 43(5): 1969-1978, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30864681

RESUMO

Honokiol, a natural biphenolic compound, exerts anticancer effects through a variety of mechanisms on multiple types of cancer with relatively low toxicity. Adenosine 5'­phosphate­activated protein kinase (AMPK), an essential regulator of cellular homeostasis, may control cancer progression. The present study aimed to investigate whether the anticancer activities of honokiol in ovarian cancer cells were mediated through the activation of AMPK. Honokiol decreased cell viability of 2 ovarian cancer cell lines, with an half­maximal inhibitory concentration value of 48.71±11.31 µM for SKOV3 cells and 46.42±5.37 µM for Caov­3 cells. Honokiol induced apoptosis via activation of caspase­3, caspase­7 and caspase­9, and cleavage of poly­(adenosine 5'­diphosphate­ribose) polymerase. Apoptosis induced by honokiol was weakened by compound C, an AMPK inhibitor, suggesting that honokiol­induced apoptosis was dependent on the AMPK/mechanistic target of rapamycin signaling pathway. Additionally, honokiol inhibited the migration and invasion of ovarian cancer cells. The combined treatment of honokiol with compound C reversed the activities of honokiol in wound healing and Matrigel invasion assays. These results indicated that honokiol may have therapeutic potential in ovarian cancer by targeting AMPK activation.


Assuntos
Proteínas Quinases Ativadas por AMP/metabolismo , Apoptose/efeitos dos fármacos , Compostos de Bifenilo/farmacologia , Movimento Celular/efeitos dos fármacos , Lignanas/farmacologia , Neoplasias Ovarianas/patologia , Transdução de Sinais/efeitos dos fármacos , Serina-Treonina Quinases TOR/metabolismo , Animais , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Ativação Enzimática/efeitos dos fármacos , Feminino , Humanos , Camundongos , Modelos Biológicos , Células NIH 3T3 , Invasividade Neoplásica , Neoplasias Ovarianas/enzimologia , Ensaio Tumoral de Célula-Tronco
15.
Mol Med Rep ; 18(4): 3898-3906, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30106144

RESUMO

Ovarian cancer is one of the most common causes of female mortalities from gynecological tumors. An ent­kaurane diterpenoid compound CRT1 (ent­18­acetoxy­7ß­hydroxy kaur­15­oxo­16­ene), mainly isolated from the Vietnamese herb Croton tonkinesis has been used in folk medicine in Vietnam for cancer treatment. However, the effect of this compound on human ovarian cancer cells has not yet been reported. The objective of the present study was to determine the effect of CRT1 on the cell viability, apoptosis and metastasis of SKOV3 human ovarian cancer cells using a Cell Counting Kit­8 assay, flow cytometric analysis of Annexin V­fluorescein isothiocyanate/propidium iodide staining, western blot analysis, soft agar colony forming assay, wound healing assay and Matrigel invasion assay. The results revealed that CRT1 possessed significant anti­proliferative effects on SKOV3 cells. CRT1 treatment at 25 and 50 µM induced apoptosis, enhanced the percentage of Annexin V­positive cells, increased the expression of pro­apoptotic protein B­cell lymphoma 2 (Bcl­2)­associated X protein, cytochrome c release from the mitochondria to the cytosol, cleaved caspase­3, caspase­7, caspase­9, and poly (adenosine diphosphate­ribose) polymerase. However, it decreased the expression of Bcl­2 in a dose­dependent manner. The percentage of necrotic cells increased following CRT1 treatment at <10 µM. CRT1 at 50 µM significantly induced the phosphorylation of extracellular signal­regulated kinase (ERK). Growth inhibition and the apoptotic effects of CRT1 could be reversed by PD98059, an ERK inhibitor. Additionally, CRT1 inhibited cell migration and invasion via ERK1/2 activation in SKOV3 cells. These results indicated that CRT1, an ent­kaurane diterpenoid, may be a potential inhibitor of ovarian cancer by the activating ERK1/2/p90 ribosomal S6 kinase signaling pathway.


Assuntos
Movimento Celular/efeitos dos fármacos , Diterpenos do Tipo Caurano/farmacologia , Sistema de Sinalização das MAP Quinases/efeitos dos fármacos , Neoplasias Ovarianas/patologia , Proteínas Quinases S6 Ribossômicas 90-kDa/metabolismo , Apoptose/efeitos dos fármacos , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Feminino , Humanos , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/metabolismo , Invasividade Neoplásica , Fosforilação/efeitos dos fármacos , Inibidores de Proteínas Quinases/farmacologia , Transdução de Sinais/efeitos dos fármacos , Fatores de Tempo , Ensaio Tumoral de Célula-Tronco
16.
World J Surg Oncol ; 16(1): 92, 2018 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-29764445

RESUMO

BACKGROUND: The goal of the study was to investigate the current clinical practices among oncologic surgeons regarding cytoreductive surgery (CRS) with intraoperative hyperthermic intraperitoneal chemotherapy (HIPEC). METHODS: From September to October 2016, an online questionnaire surveyed the oncologic surgeons by email. The questionnaire included 20 multiple-choice questions of the following: eligibility for the CRS with HIPEC procedure, perioperative staging and surgery skill, assessment of residual tumors, and method used for intraperitoneal HIPEC. RESULTS: The response rate was 16% (34/217). The majority of respondents (68%) worked at a university hospital. All respondents indicated that mesenteric invasion is the most crucial factor affecting treatment decision. Most surgeons (79%) used the Sugarbaker's staging system to intraoperatively measure the extent of peritoneal invasion. The methods used to measure the extent of miliary pattern of residual tumor spread, and the amount of residual tumor after electrocauterization varied among the surgeons. Most responders (65%) used the closed system of HIPEC. CONCLUSIONS: Despite the fact that CRS HIPEC is the standard treatment for PSM, the clinical practices are very different according to each clinical situation. Nevertheless, mesenteric invasion was found to be the most important factor impacting the treatment decision-making by the majority of responders.


Assuntos
Quimioterapia do Câncer por Perfusão Regional/métodos , Procedimentos Cirúrgicos de Citorredução/métodos , Hipertermia Induzida/métodos , Neoplasias Peritoneais/terapia , Padrões de Prática Médica , Inquéritos e Questionários , Adulto , Feminino , Humanos , Agências Internacionais , Masculino , Pessoa de Meia-Idade , Neoplasias Peritoneais/patologia , Prognóstico , Cirurgiões/estatística & dados numéricos , Taxa de Sobrevida
17.
Medicine (Baltimore) ; 97(14): e0340, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29620661

RESUMO

We retrospectively reviewed outcomes of treatments with cisplatin and topotecan in patients with previously-treated uterine cervix cancer.We analyzed the medical records of patients with advanced (stage IVB) or recurrent or persistent squamous or non-squamous cell carcinoma of the cervix, who were treated with cisplatin and topotecan as a second-line chemotherapy between January 2000 and December 2015. The patients were treated with a combination of cisplatin (50 mg/m for 1 day) and topotecan (0.75 mg/m for 3 days) once every 3 weeks. Treatment response, progression-free survival (PFS), and overall survival (OS) were analyzed in all patients and between responder and non-responder groups (responders showed at least a partial response to prior systemic chemotherapy).Thirty-nine patients with a median age of 47 years (range, 32-73 years) were treated with cisplatin and topotecan. The median PFS was 4.6 months (95% confidence interval [CI], 1.2-7.9 months) and the median OS was 14.1 months (95% CI, 10.0-18.2 months). The overall response rate (ORR) was 30.8%, and the disease control rate was 56.4%. The ORR was significantly better in the responder group compared with the non-responder group (50.0% vs 10.5%; P = .008). All patients reported some grade of hematological toxicity. The most frequently encountered toxicity was anemia, with a rate of 59.7% for any grade and 13.2% for grade 3 or 4.The combination of cisplatin and topotecan was effective as second-line chemotherapy in patients with advanced/recurrent uterine cervix cancer.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Cisplatino/administração & dosagem , Recidiva Local de Neoplasia/tratamento farmacológico , Topotecan/administração & dosagem , Neoplasias do Colo do Útero/tratamento farmacológico , Adulto , Idoso , Intervalo Livre de Doença , Feminino , Humanos , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Estudos Retrospectivos , Resultado do Tratamento , Neoplasias do Colo do Útero/patologia
18.
J Clin Ultrasound ; 46(4): 292-295, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-28961312

RESUMO

Lateral facial cleft is a rare congenital anomaly, but all affected infants require surgery under general anesthesia. Conventional 2-dimensional coronal view of the face, which is typically used for identification of facial clefts, has limitations with regard to detection of this anomaly. We describe a case of prenatal diagnosis of isolated lateral facial cleft made with 3D sonography and highlight the importance of this tool in the diagnosis of this rare facial deformity.


Assuntos
Fenda Labial/diagnóstico por imagem , Imageamento Tridimensional , Ultrassonografia Pré-Natal/métodos , Adulto , Feminino , Humanos , Gravidez
19.
Oncol Rep ; 37(5): 2620-2632, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28339095

RESUMO

Yes-associated protein 1 (YAP1) is a key transcriptional regulator in the Hippo signaling pathway that plays a critical role in the development and progression of several types of malignancies, including ovarian cancer. Herein, we investigated the expression of YAP1 and its clinical significance in a large population of patients with ovarian serous cystadenocarcinoma (OSC), which is the most common form of epithelial ovarian neoplasm, using the TCGA database. Surprisingly, cross-cancer mRNA expression and alterations in YAP1 were higher in OSC than in those of other types of cancers in the TCGA database. YAP1 mRNA expression was significantly higher in OSC compared with normal ovarian samples, and was higher in stages III and IV, than stages I and II. The level of YAP1 protein, which is mainly localized to the nucleus, was also higher in stage IV as compared with stages I, II and III. However, the protein level of pYAP1, which is inactive and is localized to the cytoplasm, was not significantly different between stages. The ratio of pYAP/YAP, which shows higher activity at a low ratio, was lower in stage III than in stages I and II. High YAP and low pYAP levels were significantly correlated with a poor prognosis in patients with OSC. The mRNA and protein expression of YAP1 were significantly increased in the proliferative subtype as compared to the differentiated, immunoreactive and mesenchymal subtypes. According to bioinformatics analysis, YAP1 is most highly correlated with the cell cycle. TGF-ß signaling and WNT signaling were significantly increased in the high YAP1 group according to gene set enrichment analysis. Taken together, our results suggest that not only high YAP1 expression but also its subcellular distribution may be associated with poor overall survival in patients with OSC.


Assuntos
Proteínas Adaptadoras de Transdução de Sinal/genética , Cistadenocarcinoma Seroso/genética , Regulação Neoplásica da Expressão Gênica/genética , Neoplasias Ovarianas/genética , Fosfoproteínas/genética , Proteínas Adaptadoras de Transdução de Sinal/metabolismo , Biomarcadores Tumorais/genética , Biomarcadores Tumorais/metabolismo , Diferenciação Celular , Cistadenocarcinoma Seroso/mortalidade , Cistadenocarcinoma Seroso/patologia , Citoplasma/metabolismo , Feminino , Humanos , Estimativa de Kaplan-Meier , Pessoa de Meia-Idade , Neoplasias Ovarianas/mortalidade , Neoplasias Ovarianas/patologia , Fosfoproteínas/metabolismo , Fatores de Transcrição , Proteínas de Sinalização YAP
20.
Obstet Gynecol Sci ; 60(2): 223-226, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28344966

RESUMO

Compartment syndrome is a clinical condition associated with decreased blood circulation that can lead to swelling of tissue in limited space. Several factors including lithotomy position, prolonged surgery, intermittent pneumatic compressor, and reperfusion after treatment of arterial thrombosis may contribute to compartment syndrome. However, compartment syndrome rarely occurs after gynecologic surgery. In this case, the patient was diagnosed as compartment syndrome due to reperfusion injury after treatment of arterial thrombosis, which occurred after laparoscopic radical hysterectomy and pelvic lymph node dissection for cervical cancer. Despite its rarity, prevention and identifying the risk factors of complication should be performed perioperatively; furthermore, gynecologist should be aware of the possibility of complications.

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