70 documents found, page 1 of 7
Development of Dl1.72, a Novel Anti-DLL1 Antibody with Anti-Tumor Efficacy agai...
Silva, G; Sales-Dias, J; Casal, D; Alves, S; Domenici, G; Barreto, C; Matos, C; Lemos, A; Matias, A; Kucheryava, K; Ferreira, A; Moita, MR; Braga, SThe Notch-signaling ligand DLL1 has emerged as an important player and promising therapeutic target in breast cancer (BC). DLL1-induced Notch activation promotes tumor cell proliferation, survival, migration, angiogenesis and BC stem cell maintenance. In BC, DLL1 overexpression is associated with poor prognosis, particularly in estrogen receptor-positive (ER+) subtypes. Directed therapy in early and advanced BC...
Development of Dl1.72, a Novel Anti-DLL1 Antibody with Anti-Tumor Efficacy agai...
Silva, G; Sales-Dias, J; Casal, D; Alves, S; Domenici, G; Barreto, C; Matos, C; Lemos, AR; Matias, AT; Kucheryava, K; Ferreira, A; Moita, MR; Braga, SAberrant Notch signaling is implicated in several cancers, including breast cancer. However, the mechanistic details of the specific receptors and function of ligand-mediated Notch signaling that promote breast cancer remains elusive. In our studies we show that DLL1, a Notch signaling ligand, is significantly overexpressed in ERα+ luminal breast cancer. Intriguingly, DLL1 overexpression correlates with poor pr...
Retinal Structural Changes in Preterm Children without Retinopathy of Prematurity
Maleita, D; Serras-Pereira, R; Passos, I; Elisa-Luís, M; Alves, M; Papoila, AL; Brito, C; Cunha, JP; Tavares Ferreira, JPurpose: The aim of this study was to compare all retinal layers' thickness in full-term and preterm children without retinopathy of prematurity (ROP). Methods: Cross-sectional study including two groups of patients: group 1 children with history of preterm gestation without ROP (gestational age < 37 weeks) and group 2 healthy children with history of full-term gestation. All subjects underwent an ophthalmic ex...
Non-Muscle Myosin 2A (NM2A): Structure, Regulation and Function
Brito, C; Sousa, SNon-muscle myosin 2A (NM2A) is a motor cytoskeletal enzyme with crucial importance from the early stages of development until adulthood. Due to its capacity to convert chemical energy into force, NM2A powers the contraction of the actomyosin cytoskeleton, required for proper cell division, adhesion and migration, among other cellular functions. Although NM2A has been extensively studied, new findings revealed t...
Toxoplasma gondii infection reduces serum progesterone levels and adverse effec...
Brito, C; M, Silva, T; M Castro, M; Wyrwas, W; Oliveira, B; M, Fonseca, B; Oliveira, P; W, Roberts, C; Teixeira, N; Borges, MAims: Pregnant BALB/c mice infected with a Toxoplasma gondii type II strain were used to determine how pregnancy interferes with the development of maternal immunity to T gondii and how infection disrupts pregnancy and foetal development. Methods: Maternal and foetal parasite loads were assessed by amplification of T gondii SAG1 using qPCR. Adverse effects of infection were evaluated on foetal-placental develop...
High-throughput sequencing identifies 3 novel susceptibility genes for heredita...
Campos, C; Fragoso, S; Luís, R; Pinto, F; Brito, C; Esteves, S; Pataco, M; Santos, S; Machado, P; Vicente, JB; Rosa, JC; Cavaco, BM; Moura, C; Pojo, MCutaneous melanoma is one of the most aggressive human cancers due to its high invasiveness. Germline mutations in high-risk melanoma susceptibility genes have been associated with development hereditary melanoma; however, most genetic culprits remain elusive. To unravel novel susceptibility genes for hereditary melanoma, we performed whole exome sequencing (WES) on eight patients with multiple primary melanoma...
Chronic Urticaria in the Real-Life Clinical Practice Setting in Portugal: Basel...
Costa, C; Rosmaninho, I; Guilherme, A; Ferreira, J; Antunes, J; Pina, A; Prates, S; Gaspar-Marques, J; Azevedo, F; Cunha, AP; Brito, C; Massa, AThere is a paucity of information regarding chronic urticaria patients' care in a real-world setting. The objective of this study was to report and evaluate the baseline characteristics of Portuguese chronic urticaria patients refractory to H1-antihistamines included in the AWARE study. MATERIAL AND METHODS: This is a non-interventional cohort study. Adult patients with a diagnosis of chronic urticaria with sym...
Perfringolysin O-induced plasma membrane pores trigger actomyosin remodeling an...
Brito, C; Mesquita, FS; Bleck, C; Sellers, J; Cabanes, D; Sousa, SClostridium perfringens produces an arsenal of toxins that act together to cause severe infections in humans and livestock animals. Perfringolysin O (PFO) is a cholesterol-dependent pore-forming toxin encoded in the chromosome of virtually all C. perfringens strains and acts in synergy with other toxins to determine the outcome of the infection. However, its individual contribution to the disease is poorly unde...
Reed's Syndrome
Almeida, FT; Santos, R P; Carvalho, SD; Brito, CMultiple cutaneous and uterine leiomyomatosis (MCUL), also known as Reed's syndrome, is a rare genodermatosis, with an autosomal dominant pattern of inheritance. It results from a germline heterozygous mutation of fumarate hydratase gene, that is classified as a tumor suppressor gene. Hereditary leiomyomatosis and renal cell cancer is characterized by the association of MCUL with renal cell carcinoma. We report...
Improbable lesion in a child
Almeida, FT; Campos, MA; Carvalho, SD; Brito, C