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1.
Spectrochim Acta A Mol Biomol Spectrosc ; 324: 124993, 2025 Jan 05.
Artículo en Inglés | MEDLINE | ID: mdl-39159512

RESUMEN

BODIPY-based chemosensors are widely used owing to merits like good selectivity, high fluorescence quantum yield, and excellent optical stability. As such, a pH-switchable hydrophilic fluorescent probe, BODIPY-PY-(SO3Na)2, was developed for detection of Fe3+ ion in aqueous solutions. BODIPY-PY-(SO3Na)2 revealed strong fluorescence intensity and was responsive to pH value in the range of 6.59-1.96. Additionally, BODIPY-PY-(SO3Na)2 showed good selectivity and sensitivity towards Fe3+. A good linear relationship for Fe3+ detection was obtained from 0.0 µM to 50.0 µM with low detecting limit of 6.34 nM at pH 6.59 and 2.36 nM at pH 4.32, respectively. The response to pH and detection of Fe3+ induced obvious multicolor changes. BODIPY-PY-(SO3Na)2 can also be utilized to quantitatively detect Fe3+ in real water sample. Different mechanisms of Fe3+ detection at investigated pH values were unraveled through relativistic density functional theory (DFT) calculations in BODIPY-PY-(SO3Na)2 and experiments of coexisting cations, anions and molecules. These results enabled us to gain a deeper understanding of the interactions between BODIPY-PY-(SO3Na)2 and Fe3+ and provide valuable fundamental information for design of efficient multicolor chemosensors for Fe3+ as well.

2.
J Int Med Res ; 52(9): 3000605241263726, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39324183

RESUMEN

OBJECTIVE: To investigate the levels of cystathionine-ß-synthase (CBS) in colon cancer tissues compared with adjacent control tissues; and to examine the relationship between CBS level and clinical characteristics and prognosis. METHODS: This retrospective study enrolled patients with primary colon cancer. Paraffin-embedded specimens were used to create pathological tissue microarrays. Immunohistochemistry was performed on the microarray to detect the levels of CBS in colon cancer tissues and normal adjacent tissues. Analyses were undertaken to examine the relationship between the level of CBS and clinical characteristics and prognosis. RESULTS: A total of 216 patients (107 males and 109 females) were included in the study. The level of CBS in cancer tissues was found to be significantly increased compared with normal adjacent control tissues. There were significant differences in tumour location, tumour-node-metastasis stage and survival rate between the CBS-negative and CBS-positive groups. Positive CBS immunostaining was associated with decreased survival in colon cancer patients. The results of multivariate Cox regression analysis revealed that tumour location and positive CBS immunostaining were independent prognostic factors for survival. CONCLUSION: Positive CBS immunostaining was closely associated with colon cancer and high levels of CBS might accelerate tumour development and affect patient prognosis in colon cancer.


Asunto(s)
Neoplasias del Colon , Cistationina betasintasa , Humanos , Cistationina betasintasa/metabolismo , Cistationina betasintasa/genética , Masculino , Femenino , Neoplasias del Colon/patología , Neoplasias del Colon/enzimología , Neoplasias del Colon/mortalidad , Persona de Mediana Edad , Pronóstico , Anciano , Estudios Retrospectivos , Progresión de la Enfermedad , Biomarcadores de Tumor/metabolismo , Adulto , Estadificación de Neoplasias , Metástasis Linfática , Modelos de Riesgos Proporcionales , Inmunohistoquímica , Regulación Neoplásica de la Expresión Génica
3.
Int J Hyperthermia ; 41(1): 2388653, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39278824

RESUMEN

OBJECTIVE: This study aims to assess the clinical efficacy and safety of combining high-intensity focused ultrasound (HIFU) with ultrasound-guided suction curettage for the treatment of cesarean scar pregnancy (CSP) at different time intervals. METHODS: A total of 115 CSP patients were enrolled and divided into two groups based on the time between HIFU ablation and suction curettage. Group A (n = 50) underwent suction curettage 24-48 h after HIFU ablation, while Group B (n = 65) had suction curettage within 6 h of HIFU ablation. The study compared and analyzed the clinical characteristics, treatment success rates, and intraoperative hemorrhage during ultrasound-guided suction curettage. RESULTS: The demographic characteristics of the two groups were similar, with no statistically significant differences observed in HIFU parameters, treatment success rates, blood loss, the use of Foley catheter balloons, or hospital expenses (p > 0.05). Importantly, suction curettage performed within 6 h after HIFU ablation resulted in shorter hospitalization times compared to suction curettage performed 24-48 h after the ablation (p < 0.05). CONCLUSIONS: Suction curettage within 6 h after HIFU ablation is an effective, safe, and cost-efficient treatment for patients diagnosed with CSP.


Asunto(s)
Cesárea , Cicatriz , Ultrasonido Enfocado de Alta Intensidad de Ablación , Legrado por Aspiración , Humanos , Femenino , Embarazo , Adulto , Cesárea/efectos adversos , Cesárea/métodos , Ultrasonido Enfocado de Alta Intensidad de Ablación/métodos , Ultrasonido Enfocado de Alta Intensidad de Ablación/efectos adversos , Legrado por Aspiración/métodos , Estudios Retrospectivos , Cicatriz/cirugía , Resultado del Tratamiento , Embarazo Ectópico/cirugía , Embarazo Ectópico/terapia
4.
Brain Res Bull ; : 111088, 2024 Sep 25.
Artículo en Inglés | MEDLINE | ID: mdl-39332694

RESUMEN

Perinatal depression (PD), which affects about 10 to 20 percent of women, often goes unnoticed because related symptoms frequently overlap with those commonly experienced during pregnancy. Moreover, identifying PD currently depends heavily on the use of questionnaires, and objective biological indicators for diagnosis has yet to be identified. This research proposes a safe and non-invasive method for diagnosing PD and aims to delve deeper into its underlying mechanism. Considering the non-invasiveness and clinical convenience of electroencephalogram (EEG) for mothers-to-be and fetuses, we collected the resting-state scalp EEG of pregnant women (with PD/healthy) at the 38th week of gestation. To compensate for the low spatial resolution of scalp EEG, source analysis was first applied to project the scalp EEG to the cortical-space. Afterwards, cortical-space networks and large-scale networks were constructed to investigate the mechanism of PD from two different level. Herein, differences in the two distinct types of networks between PD patients and healthy mothers-to-be were explored, respectively. We found that the PD patients illustrated decreased network connectivity in the cortical-space, while the large-scale networks revealed weaker connections at cerebellar area. Further, related spatial topological features derived from the two different networks were combined to promote the recognition of pregnant women with PD from those healthy ones. Meanwhile, the depression severity at patient level was effectively predicted based on the combined spatial topological features as well. These findings consistently validated that the two kinds of networks indeed played off each other, which thus helped explore the underlying mechanism of PD; and further verified the superiority of the combination strategy, revealing its reliability and potential in diagnosis and depression severity evaluation.

5.
Biomol Biomed ; 2024 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-39284279

RESUMEN

Neuroinflammation is associated with the development of postoperative cognitive dysfunction (POCD). Parecoxib has powerful anti-inflammatory and analgesic effects, which may reduce the occurrence of POCD. We hypothesized that parecoxib could reduce the incidence of POCD and relieve postoperative pain without increasing postoperative complications in elderly patients with gastrointestinal cancer. The study analyzed the effect of parecoxib on elderly patients undergoing elective radical resection of gastrointestinal tumors. Patients were divided into the NSAIDs group and the non-NSAIDs group according to whether parecoxib was administered. Demographic and clinical data were collected and compared. The incidence of POCD was set as the primary outcome, and postoperative pain as the secondary outcome. Among the 440 enrolled patients, the POCD incidence rates within 7 days after surgery in the NSAIDs and non-NSAIDs groups were 42.60% and 40.30%, respectively, with no statistically significant difference (P > 0.05). Patients in the NSAIDs group experienced significantly less pain on the first and second days after surgery compared to the non-NSAIDs group (P < 0.05). There were no statistically significant differences in postoperative adverse events between the two groups (P > 0.05). Parecoxib had no significant negative effect on early postoperative cognitive function, effectively alleviating early postoperative acute pain without increasing postoperative complications. The findings have implications for the broader use of parecoxib in postoperative pain management in elderly patients undergoing major surgery.

6.
Int J Biol Sci ; 20(11): 4532-4550, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39247808

RESUMEN

Adenosine receptor-mediated signaling, especially adenosine A2A receptor (A2AR) signaling, has been implicated in wound healing. However, the role of endothelial cells (ECs) in A2AR-mediated wound healing and the mechanism underlying this effect are still unclear. Here, we showed that the expression of A2AR substantially increased after wounding and was especially prominent in granulation tissue. The delaying effects of A2AR knockout (KO) on wound healing are due mainly to the effect of A2AR on endothelial cells, as shown with A2AR-KO and EC-A2AR-KO mice. Moreover, the expression of c-Ski, which is especially prominent in CD31-positive cells in granulation tissue, increased after wounding and was decreased by both EC-A2AR KO and A2AR KO. In human microvascular ECs (HMECs), A2AR activation induced EC proliferation, migration, tubule formation and c-Ski expression, whereas c-Ski depletion by RNAi abolished these effects. Mechanistically, A2AR activation promotes the expression of c-Ski through an ERK/CREB-dependent pathway. Thus, A2AR-mediated angiogenesis plays a critical role in wound healing, and c-Ski is involved mainly in the regulation of angiogenesis by A2AR via the ERK/CREB pathway. These findings identify A2AR as a therapeutic target in wound repair and other angiogenesis-dependent tissue repair processes.


Asunto(s)
Proteína de Unión a Elemento de Respuesta al AMP Cíclico , Ratones Noqueados , Receptor de Adenosina A2A , Cicatrización de Heridas , Cicatrización de Heridas/fisiología , Cicatrización de Heridas/genética , Animales , Receptor de Adenosina A2A/metabolismo , Receptor de Adenosina A2A/genética , Ratones , Humanos , Proteína de Unión a Elemento de Respuesta al AMP Cíclico/metabolismo , Células Endoteliales/metabolismo , Neovascularización Fisiológica , Transducción de Señal , Sistema de Señalización de MAP Quinasas/fisiología , Proliferación Celular/genética , Movimiento Celular/genética , Angiogénesis
7.
Int J Hyperthermia ; 41(1): 2384471, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39251216

RESUMEN

OBJECTIVES: To observe the therapeutic efficacy of high-intensity focused ultrasound (HIFU) combined with different pharmacological treatments for adenomyosis. MATERIALS AND METHODS: A total of 126 patients with adenomyosis who underwent HIFU combined with pharmacological treatment were retrospectively reviewed. Patients were treated with either dienogest (DNG) (Group A, N = 38) or GnRH-a (Group B, N = 88) for three months after HIFU, and received levonorgestrel-releasing intrauterine systems (LNG-IUS) at the end of the third month. Visual Analog Scale (VAS) and Pictorial Blood Loss Assessment Chart (PBAC) scores were used for evaluating symptom improvement. RESULTS: After propensity score matching (1:2), 38 patients were included in Group A and 76 in Group B. All patients showed significant improvement in VAS and PBAC scores after HIFU, but the PBAC score of Group A was significantly higher than that of patients in Group B at 18 months [11.50 (1.00, 29.50) vs. 0.00 (0.00, 16.50), p < 0.01] and 24 months [4.00 (0.25, 27.75) vs. 0.00 (0.00, 12.75), p = 0.04] after HIFU. Furthermore, patients in Group B had a greater uterine volume reduction at 24 months after HIFU than that of patients in Group A [51.00 (27.00, 62.00) vs. 30.00 (17.00, 42.75, p = 0.02)]. However, the adverse effects in Group A were lower than those in Group B [7 (15.79) vs. 35 (46.05), p < 0.01]. No significant difference was observed in the recurrence rate between the two groups. CONCLUSIONS: HIFU combined with DNG and LNG-IUS is a safe and effective treatment for patients with adenomyosis.


Asunto(s)
Adenomiosis , Ultrasonido Enfocado de Alta Intensidad de Ablación , Humanos , Femenino , Adenomiosis/terapia , Adenomiosis/tratamiento farmacológico , Adenomiosis/cirugía , Ultrasonido Enfocado de Alta Intensidad de Ablación/métodos , Adulto , Persona de Mediana Edad , Hormona Liberadora de Gonadotropina/uso terapéutico , Estudios Retrospectivos , Nandrolona/análogos & derivados , Nandrolona/uso terapéutico , Nandrolona/farmacología , Terapia Combinada/métodos , Levonorgestrel/uso terapéutico , Levonorgestrel/administración & dosificación , Resultado del Tratamiento
8.
Environ Res ; 262(Pt 2): 119963, 2024 Sep 07.
Artículo en Inglés | MEDLINE | ID: mdl-39251176

RESUMEN

The significance of intermittent streams in nutrient loss within forest ecosystems is becoming increasingly critical due to changes in precipitation patterns associated with global climate change. However, few studies have focused on nutrient export from intermittent streams. We conducted continuous sediment collection from intermittent streams from March 2022 to February 2023 to investigate the export pattern and mechanism of sediment-associated nitrogen (N) from intermittent streams of different forest types (composed forest of Castanopsis carlesii (Cas. carlesii) and Cunninghamia lanceolata (C. lanceolata) forests, compared to Cas. carlesii forests). We measured the N concentrations and calculated the export amounts of four common forms of N associated with sediments: total N (TN), dissolved N (DN), nitrate, and ammonia. Our results showed that (1) the annual average exports of TN, DN, nitrate, and ammonia associated with sediments from intermittent streams from both forest types were 273, 1.62, 0.26, and 0.84 kg ha-1, respectively; (2) N export was significantly higher in composite forests of Cas. carlesii and C. lanceolata, compared to Cas. carlesii forests; (3) stream sediment export amount positively affected N export both in composite forests and Cas. carlesii forests; and (4) N export was also controlled by rainfall amount and stream characteristics. Our study quantified sediment-associated N export from intermittent streams among different subtropical forest types, which will enhance our understanding of N dynamics associated with stream hydrological processes in subtropical forests.

9.
Eur J Med Chem ; 279: 116807, 2024 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-39243453

RESUMEN

Natural product evodiamine (Evo) and its synthetic derivatives represent an attractive dual Topo 1/2 inhibitors with broad-spectrum antitumor efficacy. However, the clinical applications of these compounds have been impeded by their poor aqueous solubility. Herein, a series of water-soluble 10-substituted-N(14)-phenylevodiamine derivatives were designed and synthesized. The most potent compound 45 featuring a quaternary ammonium salt fragment achieved robust aqueous solubility and nanomolar potency against a panel of human hepatoma cell lines Huh7, HepG2, SK-Hep-1, SMMC-7721, and SMMC-7721/DOX (doxorubicin-resistant cell). Further studies revealed that 45 could inhibit Topo 1 and Topo 2, induce apoptosis, arrest the cell cycle at the G2/M stage and inhibit the migration and invasion. Compound 45 exhibited potent antitumor activity (TGI = 51.1 %, 10 mg/kg) in the Huh7 xenograft model with acceptable safety profile. In addition, a 21-day long-term dose toxicity study confirmed that the maximum tolerated dose of compound 45 was 20 mg/kg. Overall, this study presented a promising Evo-derived candidate for the treatment of hepatocellular carcinoma.

11.
Sci Rep ; 14(1): 21183, 2024 09 11.
Artículo en Inglés | MEDLINE | ID: mdl-39261578

RESUMEN

Single-cell RNA sequencing (scRNA-seq) has emerged as a pivotal tool for exploring cellular landscapes across diverse species and tissues. Precise annotation of cell types is essential for understanding these landscapes, relying heavily on empirical knowledge and curated cell marker databases. In this study, we introduce MarkerGeneBERT, a natural language processing (NLP) system designed to extract critical information from the literature regarding species, tissues, cell types, and cell marker genes in the context of single-cell sequencing studies. Leveraging MarkerGeneBERT, we systematically parsed full-text articles from 3702 single-cell sequencing-related studies, yielding a comprehensive collection of 7901 cell markers representing 1606 cell types across 425 human tissues/subtissues, and 8223 cell markers representing 1674 cell types across 482 mouse tissues/subtissues. Comparative analysis against manually curated databases demonstrated that our approach achieved 76% completeness and 75% accuracy, while also unveiling 89 cell types and 183 marker genes absent from existing databases. Furthermore, we successfully applied the compiled brain tissue marker gene list from MarkerGeneBERT to annotate scRNA-seq data, yielding results consistent with original studies. Conclusions: Our findings underscore the efficacy of NLP-based methods in expediting and augmenting the annotation and interpretation of scRNA-seq data, providing a systematic demonstration of the transformative potential of this approach. The 27323 manual reviewed sentences for training MarkerGeneBERT and the source code are hosted at https://github.com/chengpeng1116/MarkerGeneBERT .


Asunto(s)
Biomarcadores , Procesamiento de Lenguaje Natural , Análisis de la Célula Individual , Humanos , Animales , Análisis de la Célula Individual/métodos , Ratones , Análisis de Secuencia de ARN/métodos , Bases de Datos Genéticas , Biología Computacional/métodos
12.
Bioorg Chem ; 153: 107815, 2024 Sep 11.
Artículo en Inglés | MEDLINE | ID: mdl-39265523

RESUMEN

Immunomodulatory drugs (IMiDs) represented by thalidomide exhibit benefits when combined with other chemotherapeutic drugs for patients with lung cancer, which inspired the exploration of combining pomalidomide with another agent to treat lung cancer as it is more potent than thalidomide. However, the drugs that can be combined with pomalidomide to benefit patients and related mechanisms remain unclear. Here, we performed a proteomic analysis based on the streptavidin pull-down to identify the potential target of pomalidomide in non-small cell lung cancer (NSCLC). In this work, electron transfer flavoprotein alpha subunit (ETFA), an important enzyme involved in electron transport in the respiratory chains was identified as a crucial cellular target of pomalidomide in NCI-H460 cells. Using apoptosis model and combination analyses, we found that pomalidomide directly targeted ETFA, and increased ATP generation, thereby significantly promoting tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-induced apoptosis. Specific knockdown of ETFA could effectively eliminate the promoting effect of pomalidomide on energy production. Furthermore, respiratory chain inhibitors can effectively block cell apoptosis induced by TRAIL and pomalidomide. These results suggested that pomalidomide may promote apoptosis by facilitating energy production by targeting ETFA and thus enhanced the anticancer effects of chemotherapeutic drugs. It is noteworthy that pomalidomide noticeably increased the anticancer efficacy of cisplatin (CDDP) in NCI-H460 xenograft model with the main mechanisms by inducing apoptosis. Collectively, our data not only provide new insights into the anticancer mechanisms of pomalidomide but also reflect translational prospects of combining pomalidomide with CDDP for NSCLC treatment.

13.
Commun Biol ; 7(1): 1128, 2024 Sep 13.
Artículo en Inglés | MEDLINE | ID: mdl-39266658

RESUMEN

Revealing the heterogeneity among tissues is the greatest advantage of single-cell-sequencing. Marker genes not only act as the key to correctly identify cell types, but also the bio-markers for cell-status under certain experimental imputations. Current analysis methods such as Seurat and Monocle employ algorithms which compares one cluster to all the rest and select markers according to statistical tests. This pattern brings redundant calculations and thus, results in low calculation efficiency, specificity and accuracy. To address these issues, we introduce starTracer, a novel algorithm designed to enhance the efficiency, specificity and accuracy of marker gene identification in single-cell RNA-seq data analysis. starTracer operates as an independent pipeline, which exhibits great flexibility by accepting multiple input file types. The primary output is a marker matrix, where genes are sorted by the potential to function as markers, with those exhibiting the greatest potential positioned at the top. The speed improvement ranges by 2 ~ 3 orders of magnitude compared to Seurat, as observed across three independent datasets with lower false positive rate as observed in a simulated testing dataset with ground-truth. It's worth noting that starTracer exhibits increasing speed improvement with larger data volumes. It also excels in identifying markers in smaller clusters. These advantages solidify starTracer as an important tool for single-cell RNA-seq data, merging robust accuracy with exceptional speed.


Asunto(s)
Algoritmos , RNA-Seq , Análisis de la Célula Individual , Análisis de la Célula Individual/métodos , RNA-Seq/métodos , Humanos , Análisis de Secuencia de ARN/métodos , Marcadores Genéticos , Animales , Perfilación de la Expresión Génica/métodos , Programas Informáticos , Análisis de Expresión Génica de una Sola Célula
15.
Crit Rev Microbiol ; : 1-18, 2024 Aug 14.
Artículo en Inglés | MEDLINE | ID: mdl-39140115

RESUMEN

Prevotella intermedia is a Gram-negative anaerobic bacterium that is a common pathogen of periodontitis. Recent studies have revealed that P. intermedia is closely associated with a variety of diseases involving multiple systems. Under the action of its virulence factors such as cysteine protease and adhesins, P. intermedia has the ability to bind and invade various host cells including gingival fibroblasts. It can also copolymerize a variety of pathogenic bacteria, leading to interference with the host's immune inflammatory response and causing various diseases. In this article, we review the progress of research on P. intermedia virulence factors and bacterial pathogenesis, and the correlation between P. intermedia and various diseases.

17.
BMC Womens Health ; 24(1): 438, 2024 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-39090652

RESUMEN

PURPOSE: To develop and validate a nomogram based on 3D-PDU parameters and clinical characteristics to predict LNM and LVSI in early-stage cervical cancer preoperatively. MATERIALS AND METHODS: A total of first diagnosis 138 patients with cervical cancer who had undergone 3D-PDU examination before radical hysterectomy plus lymph dissection between 2014 and 2019 were enrolled for this study. Multivariate logistic regression analyses were performed to analyze the 3D-PDU parameters and selected clinicopathologic features and develop a nomogram to predict the probability of LNM and LVSI in the early stage. ROC curve was used to evaluate model differentiation, calibration curve and Hosmer-Lemeshow test were used to evaluate calibration, and DCA was used to evaluate clinical practicability. RESULTS: Menopause status, FIGO stage and VI were independent predictors of LNM. BMI and maximum tumor diameter were independent predictors of LVSI. The predicted AUC of the LNM and LSVI models were 0.845 (95%CI,0.765-0.926) and 0.714 (95%CI,0.615-0.813). Calibration curve and H-L test (LNM groups P = 0.478; LVSI P = 0.783) all showed that the predicted value of the model had a good fit with the actual observed value, and DCA indicated that the model had a good clinical net benefit. CONCLUSION: The proposed nomogram based on 3D-PDU parameters and clinical characteristics has been proposed to predict LNM and LVSI with high accuracy, demonstrating for the first time the potential of non-invasive prediction. The probability derived from this nomogram may have the potential to provide valuable guidance for physicians to develop clinical individualized treatment plans of FIGO patients with early cervical cancer.


Asunto(s)
Metástasis Linfática , Nomogramas , Neoplasias del Cuello Uterino , Humanos , Femenino , Neoplasias del Cuello Uterino/patología , Neoplasias del Cuello Uterino/cirugía , Neoplasias del Cuello Uterino/diagnóstico , Metástasis Linfática/patología , Persona de Mediana Edad , Adulto , Imagenología Tridimensional/métodos , Histerectomía/métodos , Estadificación de Neoplasias , Escisión del Ganglio Linfático/métodos , Ultrasonografía/métodos , Invasividad Neoplásica , Ganglios Linfáticos/patología , Estudios Retrospectivos , Anciano , Valor Predictivo de las Pruebas
18.
J Formos Med Assoc ; 2024 Aug 14.
Artículo en Inglés | MEDLINE | ID: mdl-39147686

RESUMEN

BACKGROUND/PURPOSE: Lymphoepithelioma-like cholangiocarcinoma (LELCC) is a rare variant of intrahepatic cholangiocarcinoma (ICC). We aim to analyze the differences in the clinical and radiological features of LELCC and ICC. METHODS: Between January 2003 and December 2019, a total of 21 patients diagnosed with LELCC were retrospectively enrolled, and 84 patients with ICC were selected through propensity score matching by sex, age, and initial cancer stage. The clinical characteristics, pathological findings, and radiological features were analyzed. The differences in overall survival (OS) between LELCC and ICC were evaluated using the Kaplan-Meier method. RESULTS: The serum carbohydrate antigen 19-9 (CA 19-9) level was higher in the ICC group than in the LELCC group (77.9 vs 30.0 U/mL, p = 0.004). Non-rim arterial phase hyperenhancement (47.1% vs 13.7%, p = 0.005) and portovenous washout (35.3% vs 4.1%, p = 0.001) were more frequently observed in the LELCC group than in the ICC group. Intrahepatic duct dilatation was a distinct feature of the ICC group. The 5-year OS rates in the LELCC and ICC groups were 69.3% and 58.2%, respectively (p = 0.047). The 5-year OS of patients with stages I and II LELCC between ICC were not significantly different (90.0% vs 83.4%, p = 0.464). However, the 5-year OS of patients with stages III and IV LELCC was more favorable than that of patients with ICC (29.2% vs 23.0%, p = 0.017). CONCLUSIONS: LELCC had a favorable outcome and several different clinicoradiological features compared with ICC.

19.
Mod Pathol ; : 100593, 2024 Aug 16.
Artículo en Inglés | MEDLINE | ID: mdl-39154782

RESUMEN

The differential diagnosis of malignant spindle cell neoplasms in the breast most frequently rests between malignant phyllodes tumor (MPT) and metaplastic carcinoma (MBC). Diagnosis of MPT can be challenging due to diffuse stromal overgrowth, keratin (CK) and/or p63 immunopositivity, and absent CD34 expression, which can mimic MBC, especially in core biopsies. Distinction of MPT from MBC has clinical implications, with differences in surgical approach, chemotherapy, and radiation. In this study, we evaluated MPT (78 tumors, 64 patients) for stromal CK, p63, and CD34 expression and profiled a subset (n=31) by targeted next-generation DNA sequencing (NGS), with comparison to MBC (n=44). Most MPT (71%) were CK+ and/or p63+, including 32% CK+ (25/77 focal) and 65% p63+ (32/66 focal, 10/66 patchy, 1/66 diffuse). Thirty-percent of MPT expressed both CK and p63 (20/66), compared to 95% of MBC (40/42, p<0.001). CK and/or p63 were positive in CD34+ and CD34- MPT. Recurrent genetic aberrations in MPT involved TERT, TP53, MED12, CDKN2A, chromatin modifiers, growth factor receptors/ligands, and PI-3K and MAPK pathway genes. Only MED12 (39%, 12/31) and SETD2 (13%, 4/31) were exclusively mutated in MPT and not MBC (p<0.001 and p=0.044, respectively), whereas PIK3R1 mutations were only found in MBC (35%, 13/35, p<0.001). Comparative literature review additionally identified ARID1B, EGFR, FLNA, NRAS, PDGFRB, RAD50, and RARA alterations enriched or exclusively in MPT versus MBC. MED12 was mutated in MPT with diffuse stromal overgrowth (53%, 9/17), CD34- MPT (41%, 7/17), and CK+ and/or p63+ MPT (39%, 9/23), including 36% of CD34- MPT with CK and/or p63 expression. Overall, MED12 mutation and/or CD34 expression were observed in 68% (21/31) MPT, including 61% (14/23) of CK+ and/or p63+ tumors. Our results emphasize the prevalence of CK and p63 expression in MPT and demonstrate diagnostic utility of NGS, especially in MPT with confounding factors that can mimic MBC.

20.
Diagn Pathol ; 19(1): 110, 2024 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-39143618

RESUMEN

AIMS: Compared to primary breast sarcoma (BSs), radiotherapy-induced sarcoma (RIS) is a less frequent type of secondary breast sarcoma. Undifferentiated pleomorphic sarcoma (UPS) is an even rarer occurrence within the RIS category. This study aimed to present the clinicopathologic and molecular features of breast radiotherapy-induced UPS. METHODS: A retrospective study was conducted at the Third Affiliated Hospital of Soochow University to analyze three patients with radiation-induced undifferentiated pleomorphic sarcoma (UPS) following breast cancer, spanning from 2006 to 2023. The clinical and pathological variables were extracted from the medical records, while immunohistochemistry was employed to analyze the immunophenotypes of these tumors. Genomic characteristics were assessed through DNA and RNA sequencing techniques. Another 15 cases from the literature were also reviewed to better characterize the tumor. RESULTS: The affected areas encompass the chest wall and breasts, with an incubation period ranging from 6 to 17 years. The tumor cells exhibit pleomorphism and demonstrate a high degree of pathological mitosis. Notably, two cases displayed an accelerated disease progression, characterized by recurrent tumors and metastases occurring within short intervals of 48 and 7 months respectively subsequent to the initial diagnosis. The two prevailing identified genes were TP53 (2/3, 66.7%) and RB1 (1/3, 33.3%). Through analysis of somatic copy number variation (CNV), it was discovered that two oncogenes, MCL1 (1/3, 33.3%) and MYC (1/3, 33.3%), had experienced gains in CNV. The Tumor Mutational Burden (TMB) values for case 1, case 2, and case 3 were 5.9 mut/Mb, 1.0 mut/Mb, and 3.0 mut/Mb, respectively. Moreover, the analysis of RNA-NGS (next-generation sequencing) revealed the presence of a novel gene fusion, named COL3A1-GULP1, in case 2. CONCLUSIONS: Based on our thorough analysis of research findings and previous reports, it is evident that radiotherapy-induced UPS exhibits a highly diverse and frequently severe clinical and biological behavior. Identifying tumor formation using genome sequencing can help understand its biological behavior and determine personalized treatments.


Asunto(s)
Neoplasias de la Mama , Neoplasias Inducidas por Radiación , Sarcoma , Humanos , Femenino , Neoplasias de la Mama/genética , Neoplasias de la Mama/patología , Neoplasias de la Mama/radioterapia , Sarcoma/genética , Sarcoma/patología , Neoplasias Inducidas por Radiación/genética , Neoplasias Inducidas por Radiación/patología , Persona de Mediana Edad , Estudios Retrospectivos , Adulto , Biomarcadores de Tumor/genética , Anciano , Proteínas de Unión a Retinoblastoma/genética , Ubiquitina-Proteína Ligasas
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