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Esperança-Martins M, Melo-Alvim C, Dâmaso S, Lopes-Brás R, Peniche T, Nogueira-Costa G, Abreu C, Luna Pais H, de Sousa RT, Torres S, Gallego-Paez LM, Martins M, Ribeiro L, Costa L. Breast Sarcomas, Phyllodes Tumors, and Desmoid Tumors: Turning the Magnifying Glass on Rare and Aggressive Entities. Cancers (Basel) 2023; 15:3933. [PMID: 37568749 PMCID: PMC10416994 DOI: 10.3390/cancers15153933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
Breast sarcomas (BSs), phyllodes tumors (PTs), and desmoid tumors (DTs) are rare entities that arise from connective tissue. BSs can be classified as either primary or secondary, whether they develop de novo or after radiation exposure or lymphedema. PIK3CA seems to play an important common role in different BS. Malignant PTs show similar behavior to BSs, while DTs are locally aggressive but rarely metastasize. BSs usually present as unilateral, painless, rapidly growing masses with rare nodal involvement. The diagnosis should be based on magnetic resonance imaging and a core needle biopsy. Staging should comprise a chest computed tomography (CT) scan (except for benign PT and DT), while abdominal and pelvic CT scans and bone scans should be added in certain subtypes. The mainstay of treatment for localized BS is surgery, with margin goals that vary according to subtype. Radiotherapy and chemotherapy can be used as neoadjuvant or adjuvant approaches, but their use in these settings is not standard. Advanced BS should be treated with systemic therapy, consistent with recommendations for advanced soft tissue sarcomas of other topographies. Given the rarity and heterogeneity of these entities, multidisciplinary and multi-institutional collaboration and treatment at reference centers are critical.
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Affiliation(s)
- Miguel Esperança-Martins
- Medical Oncology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal; (C.M.-A.); (S.D.); (R.L.-B.); (G.N.-C.); (C.A.); (H.L.P.); (R.T.d.S.); (S.T.); (L.R.)
- Luis Costa Lab, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal; (T.P.); (L.M.G.-P.); (M.M.)
| | - Cecília Melo-Alvim
- Medical Oncology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal; (C.M.-A.); (S.D.); (R.L.-B.); (G.N.-C.); (C.A.); (H.L.P.); (R.T.d.S.); (S.T.); (L.R.)
- Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Sara Dâmaso
- Medical Oncology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal; (C.M.-A.); (S.D.); (R.L.-B.); (G.N.-C.); (C.A.); (H.L.P.); (R.T.d.S.); (S.T.); (L.R.)
| | - Raquel Lopes-Brás
- Medical Oncology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal; (C.M.-A.); (S.D.); (R.L.-B.); (G.N.-C.); (C.A.); (H.L.P.); (R.T.d.S.); (S.T.); (L.R.)
| | - Tânia Peniche
- Luis Costa Lab, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal; (T.P.); (L.M.G.-P.); (M.M.)
| | - Gonçalo Nogueira-Costa
- Medical Oncology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal; (C.M.-A.); (S.D.); (R.L.-B.); (G.N.-C.); (C.A.); (H.L.P.); (R.T.d.S.); (S.T.); (L.R.)
- Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Catarina Abreu
- Medical Oncology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal; (C.M.-A.); (S.D.); (R.L.-B.); (G.N.-C.); (C.A.); (H.L.P.); (R.T.d.S.); (S.T.); (L.R.)
- Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Helena Luna Pais
- Medical Oncology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal; (C.M.-A.); (S.D.); (R.L.-B.); (G.N.-C.); (C.A.); (H.L.P.); (R.T.d.S.); (S.T.); (L.R.)
- Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Rita Teixeira de Sousa
- Medical Oncology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal; (C.M.-A.); (S.D.); (R.L.-B.); (G.N.-C.); (C.A.); (H.L.P.); (R.T.d.S.); (S.T.); (L.R.)
- Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Sofia Torres
- Medical Oncology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal; (C.M.-A.); (S.D.); (R.L.-B.); (G.N.-C.); (C.A.); (H.L.P.); (R.T.d.S.); (S.T.); (L.R.)
| | - Lina Marcela Gallego-Paez
- Luis Costa Lab, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal; (T.P.); (L.M.G.-P.); (M.M.)
| | - Marta Martins
- Luis Costa Lab, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal; (T.P.); (L.M.G.-P.); (M.M.)
| | - Leonor Ribeiro
- Medical Oncology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal; (C.M.-A.); (S.D.); (R.L.-B.); (G.N.-C.); (C.A.); (H.L.P.); (R.T.d.S.); (S.T.); (L.R.)
- Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Luís Costa
- Medical Oncology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal; (C.M.-A.); (S.D.); (R.L.-B.); (G.N.-C.); (C.A.); (H.L.P.); (R.T.d.S.); (S.T.); (L.R.)
- Luis Costa Lab, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal; (T.P.); (L.M.G.-P.); (M.M.)
- Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
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Abstract
Chromatin is highly dynamic, undergoing continuous global changes in its structure and type of histone and DNA modifications governed by processes such as transcription, repair, replication, and recombination. Members of the chromodomain helicase DNA-binding (CHD) family of enzymes are ATP-dependent chromatin remodelers that are intimately involved in the regulation of chromatin dynamics, altering nucleosomal structure and DNA accessibility. Genetic studies in yeast, fruit flies, zebrafish, and mice underscore essential roles of CHD enzymes in regulating cellular fate and identity, as well as proper embryonic development. With the advent of next-generation sequencing, evidence is emerging that these enzymes are subjected to frequent DNA copy number alterations or mutations and show aberrant expression in malignancies and other human diseases. As such, they might prove to be valuable biomarkers or targets for therapeutic intervention.
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Affiliation(s)
- Andrej Alendar
- Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam 1066CX, The Netherlands
| | - Anton Berns
- Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam 1066CX, The Netherlands
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CHD8 safeguards early neuroectoderm differentiation in human ESCs and protects from apoptosis during neurogenesis. Cell Death Dis 2021; 12:981. [PMID: 34686651 PMCID: PMC8536677 DOI: 10.1038/s41419-021-04292-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 10/01/2021] [Accepted: 10/08/2021] [Indexed: 12/24/2022]
Abstract
The chromatin remodeler CHD8, which belongs to the ATP-dependent chromatin remodelers CHD family, is one of the most high-risk mutated genes in autism spectrum disorders. However, the role of CHD8 in neural differentiation and the mechanism of CHD8 in autism remains unclear, despite there are a few studies based on the CHD8 haploinsufficient models. Here, we generate the CHD8 knockout human ESCs by CRISPR/Cas9 technology and characterize the effect of loss-of-function of CHD8 on pluripotency maintenance and lineage determination by utilizing efficient directed differentiation protocols. The results show loss-of-function of CHD8 does not affect human ESC maintenance although having slight effect on proliferation and cell cycle. Interestingly, CHD8 depletion results in defective neuroectoderm differentiation, along with severe cell death in neural progenitor stage. Transcriptome analysis also indicates CHD8 does not alter the expression of pluripotent genes in ESC stage, but in neural progenitor cells depletion of CHD8 induces the abnormal expression of the apoptosis genes and suppresses neuroectoderm-related genes. These results provide the evidence that CHD8 plays an essential role in the pluripotency exit and neuroectoderm differentiation as well as the regulation of apoptosis during neurogenesis.
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