1
|
Machado I, Abaunz AJ, Claramunt R, Silva TM, Romagosa C, Sesé M, Hernandez-Losa J, López-Guerrero JA, Llombart-Bosch A. Primary renal epithelioid dedifferentiated liposarcoma mimicking a GLI1-amplified neoplasm. Pathol Res Pract 2024; 257:155279. [PMID: 38608370 DOI: 10.1016/j.prp.2024.155279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/10/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024]
Affiliation(s)
- Isidro Machado
- Pathology Department, Instituto Valenciano de Oncología, Spain; Patologika Laboratory, Hospital Quirón-Salud, Valencia; CIBERONC, Madrid, Spain; Pathology Department, University of Valencia, Spain; Spanish Sarcoma Pathology Network (Imperas Project), Spain.
| | - Arantxa Juaristi Abaunz
- Spanish Sarcoma Pathology Network (Imperas Project), Spain; Donostia University Hospital, San Sebastián, Spain
| | - Reyes Claramunt
- Spanish Sarcoma Pathology Network (Imperas Project), Spain; Molecular Biology Department, Instituto Valenciano de Oncología, Spain
| | - Tulio M Silva
- Spanish Sarcoma Pathology Network (Imperas Project), Spain; Vall d'Hebron University Hospital, Barcelona, Spain
| | - Cleofe Romagosa
- CIBERONC, Madrid, Spain; Spanish Sarcoma Pathology Network (Imperas Project), Spain; Vall d'Hebron University Hospital, Barcelona, Spain; Universitat Autonoma de Barcelona, Spain
| | - Marta Sesé
- CIBERONC, Madrid, Spain; Spanish Sarcoma Pathology Network (Imperas Project), Spain; Vall d'Hebron University Hospital, Barcelona, Spain
| | - Javier Hernandez-Losa
- CIBERONC, Madrid, Spain; Spanish Sarcoma Pathology Network (Imperas Project), Spain; Vall d'Hebron University Hospital, Barcelona, Spain
| | - José A López-Guerrero
- Spanish Sarcoma Pathology Network (Imperas Project), Spain; Molecular Biology Department, Instituto Valenciano de Oncología, Spain; Pathology Department, Catholic University of Valencia, Spain
| | | |
Collapse
|
2
|
Machado I, Agaimy A, Giner F, Navarro S, Michal M, Bridge J, Claramunt R, López-Guerrero JA, Alcacer J, Linos K, Llombart-Bosch A. The value of GLI1 and p16 immunohistochemistry in the premolecular screening for GLI1-altered mesenchymal neoplasms. Virchows Arch 2024; 484:765-775. [PMID: 37940743 DOI: 10.1007/s00428-023-03687-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 10/20/2023] [Accepted: 10/25/2023] [Indexed: 11/10/2023]
Abstract
Mesenchymal neoplasms with GLI1 alterations have recently been reported in several anatomic locations. Their morphology and immunohistochemistry (IHC) are nonspecific, making their recognition a true challenge. To assess the diagnostic value of GLI1 and p16 IHC for identifying GLI1-altered neoplasms, we evaluated 12 such neoplasms (6 GLI1-amplified and 6 with GLI1-fusions) using the GLI1 IHC. Additionally, we evaluated some of their morphological and molecular mimickers, including glomangiomas, Ewing sarcomas (ES), myxoid liposarcomas, and MDM2/CDK4-amplified sarcomas (well-differentiated liposarcoma/WDLPS, dedifferentiated liposarcoma/DDLPS, and intimal sarcoma). All successfully tested GLI1-altered tumors (11/11) demonstrated at least moderate/strong nuclear and/or cytoplasmic GLI1 IHC positivity. GLI1-amplified tumors exhibited a moderate/strong predominantly nuclear staining, compared to a moderate, patchy, and predominantly cytoplasmic GLI1 positivity in GLI1-fusion tumors. Among their mimics, GLI1 immunoreactivity, either cytoplasmic or nuclear, was observed in intimal sarcoma (3/3) and WDLPS/DDLPS (22/25). GLI1 IHC demonstrated 92% sensitivity and 90.8% specificity in diagnosing GLI1-altered neoplasms. Strong/moderate nuclear/cytoplasmic p16 immunoexpression was noted in all GLI1-amplified tumors compared to none of fused cases. Overall, the GLI1/p16 combination demonstrated a sensitivity and specificity of 100% and 93% for GLI1-amplified tumors. In conclusion, we confirm that GLI1 IHC represents a good, quick, and cheap helpful screening tool. The inclusion of p16 may aid in pre-screening for potential GLI1-amplified neoplasms and provide insights on which tumors warrant further molecular testing.
Collapse
Affiliation(s)
- Isidro Machado
- Pathology Department, Instituto Valenciano de Oncología, Valencia, Spain.
- Patologika Laboratory0, Hospital Quirón-Salud, Valencia, Spain.
- Pathology Department, University of Valencia, Valencia, Spain.
- Cancer CIBER (CIBERONC), Madrid, Spain.
| | - Abbas Agaimy
- Institute of Pathology, Friedrich-Alexander-University Erlangen-Nürnberg, University Hospital, Erlangen, Germany
| | - Francisco Giner
- Pathology Department, University of Valencia, Valencia, Spain
- Pathology Department, Hospital la FE, Valencia, Spain
| | - Samuel Navarro
- Pathology Department, University of Valencia, Valencia, Spain
- Cancer CIBER (CIBERONC), Madrid, Spain
| | - Michael Michal
- Department of Pathology, Faculty of Medicine, Charles University, Medical Faculty and Charles University Hospital Plzen, Pilsen, Czech Republic
- Bioptical Laboratory, Ltd., Pilsen, Czech Republic
| | - Julia Bridge
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Molecular Pathology, ProPath, Dallas, TX, USA
| | - Reyes Claramunt
- Molecular Biology Department, Instituto Valenciano de Oncología, Valencia, Spain
| | - José Antonio López-Guerrero
- Molecular Biology Department, Instituto Valenciano de Oncología, Valencia, Spain
- Joint Cancer Research Unit IVO-CIPF, Valencia, Spain
- Department of Pathology, Medical School, Catholic University of Valencia, Valencia, Spain
| | - Javier Alcacer
- Patologika Laboratory0, Hospital Quirón-Salud, Valencia, Spain
| | - Konstantinos Linos
- Department of Pathology & Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | |
Collapse
|
3
|
Lavernia J, Claramunt R, Romero I, López-Guerrero JA, Llombart-Bosch A, Machado I. Soft Tissue Sarcomas with Chromosomal Alterations in the 12q13-15 Region: Differential Diagnosis and Therapeutic Implications. Cancers (Basel) 2024; 16:432. [PMID: 38275873 PMCID: PMC10814159 DOI: 10.3390/cancers16020432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 01/13/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
The chromosomal region 12q13-15 is rich in oncogenes and contains several genes involved in the pathogenesis of various mesenchymal neoplasms. Notable genes in this region include MDM2, CDK4, STAT6, DDIT3, and GLI1. Amplification of MDM2 and CDK4 genes can be detected in various mesenchymal and nonmesenchymal neoplasms. Therefore, gene amplification alone is not entirely specific for making a definitive diagnosis and requires the integration of clinical, radiological, morphological, and immunohistochemical findings. Neoplasms with GLI1 alterations may exhibit either GLI1 rearrangements or amplifications of this gene. Despite the diagnostic implications that the overlap of genetic alterations in neoplasms with changes in genes within the 12q13-15 region could create, the discovery of coamplifications of MDM2 with CDK4 and GLI1 offers new therapeutic targets in neoplasms with MDM2/CDK4 amplification. Lastly, it is worth noting that MDM2 or CDK4 amplification is not exclusive to mesenchymal neoplasms; this genetic alteration has also been observed in other epithelial neoplasms or melanomas. This suggests the potential use of MDM2 or CDK4 inhibitors in neoplasms where alterations in these genes do not aid the pathological diagnosis but may help identify potential therapeutic targets. In this review, we delve into the diagnosis and therapeutic implications of tumors with genetic alterations involving the chromosomal region 12q13-15, mainly MDM2, CDK4, and GLI1.
Collapse
Affiliation(s)
- Javier Lavernia
- Oncology Unit, Instituto Valenciano de Oncología, 46009 Valencia, Spain;
| | - Reyes Claramunt
- Laboratory of Molecular Biology, Instituto Valenciano de Oncología, 46009 Valencia, Spain; (R.C.); (J.A.L.-G.)
| | - Ignacio Romero
- Oncology Unit, Instituto Valenciano de Oncología, 46009 Valencia, Spain;
| | - José Antonio López-Guerrero
- Laboratory of Molecular Biology, Instituto Valenciano de Oncología, 46009 Valencia, Spain; (R.C.); (J.A.L.-G.)
| | | | - Isidro Machado
- Pathology Department, University of Valencia, 46010 Valencia, Spain;
- Pathology Department, Instituto Valenciano de Oncología, 46010 Valencia, Spain
- CIBERONC Cancer, 28029 Madrid, Spain
- Patologika Laboratory, Hospital Quiron-Salud, 46010 Valencia, Spain
| |
Collapse
|
4
|
Machado I, Martínez La Piedra MDC, Martínez de Juan F, de Alcántara FM, Claramunt R, López-Guerrero JA, Marhuenda A, Melian M. Primary Rectal Tumor With Extensive Choriocarcinoma Differentiation in a Woman With Lung, Liver and Disseminated Peritoneal Disease: A Primary Rectal Adenocarcinoma With Extensive Choriocarcinoma Differentiation or Primary Rectal Choriocarcinoma? Int J Surg Pathol 2023:10668969231204956. [PMID: 37885271 DOI: 10.1177/10668969231204956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Primary rectal adenocarcinoma with extensive choriocarcinomatous differentiation is a rare neoplasm, with only sporadic cases reported worldwide. The prognosis is typically poor, and no standard therapy has been established for this tumor. We report a case of a 63-year-old woman who presented with lower abdominal and pelvic discomfort, as well as rectal bleeding. Endoscopy revealed a rectal tumor. She was diagnosed with primary rectal adenocarcinoma with extensive choriocarcinomatous differentiation, accompanied by liver metastasis and peritoneal carcinomatosis. The immunohistochemical profile demonstrated strong and diffuse positivity for keratin (AE1/AE3), beta-human chorionic gonadotropin (β-HCG), p53, MYC, p16, and Ki-67. Molecular analysis indicated mutations in KRAS, TP53, and PI3KCA. Despite the tumor's profile, the serum β-HCG level was not elevated. A chemotherapy regimen for metastatic colorectal adenocarcinoma was initiated, but there was a poor response, with rapid tumor progression. The patient survived for only 5 months postdiagnosis. We discuss the histopathological, immunohistochemical, and molecular findings, emphasizing their relevance to the differential diagnosis of neoplasms with choriocarcinomatous differentiation.
Collapse
Affiliation(s)
- Isidro Machado
- Pathology Department, Instituto Valenciano de Oncología, Valencia, Spain
- Pathology Department, Patologika Laboratory, Hospital QuironSalud, Valencia, Spain
- Pathology Department, University of Valencia, Valencia, Spain
- Cancer CIBER (CIBERONC), Madrid, Spain
| | | | | | | | - Reyes Claramunt
- Molecular Biology Laboratory, Instituto Valenciano de Oncología, Valencia, Spain
| | | | - Ana Marhuenda
- Radiology Department, Instituto Valenciano de Oncología, Valencia, Spain
| | - Marcos Melian
- Oncology Department, Instituto Valenciano de Oncología, Valencia, Spain
| |
Collapse
|
5
|
Machado I, Giner F, Cruz J, Lavernia J, Marhuenda-Fluixa A, Claramunt R, López-Guerrero JA, Navarro S, Ferrandez A, Blázquez Bujeda Á, Ruiz-Sauri A, Llombart-Bosch A. Extra-meningeal solitary fibrous tumor: an evolving entity with chameleonic morphological diversity, a hallmark molecular alteration and unresolved issues in risk stratification assessment. Histol Histopathol 2023; 38:1079-1097. [PMID: 36975173 DOI: 10.14670/hh-18-608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Solitary fibrous tumor (SFT) is a rare type of mesenchymal lesion with variable clinical presentation in which specific clinicopathologic factors have been related to patient outcome. SFT shares an important morphologic and immunohistochemical overlap with other sarcomas, hence the differential diagnosis is challenging. Although molecular studies provide significant clues, especially in the differential diagnosis with other neoplasms, a thorough hematoxylin and eosin analysis and the integration of phenotypical, clinical, and radiological features remain an essential tool in SFT diagnosis. In this review, we discuss some emerging issues still under debate in SFT.
Collapse
Affiliation(s)
- Isidro Machado
- Pathology Department, Instituto Valenciano de Oncología, Valencia, Spain.
- Patologika Laboratory, Pathology Department, Hospital Quiron-Salud, Valencia, Spain
| | - Francisco Giner
- Pathology Department, University Hospital "La Fe", Valencia, Spain
| | - Julia Cruz
- Pathology Department, Instituto Valenciano de Oncología, Valencia, Spain
| | - Javier Lavernia
- Department of Oncology, Instituto Valenciano de Oncología, Valencia, Spain
| | | | - Reyes Claramunt
- Molecular Biology Laboratory, Instituto Valenciano de Oncología, Valencia, Spain
| | | | - Samuel Navarro
- Pathology Department, University of Valencia, Valencia, Spain
| | | | | | | | | |
Collapse
|
6
|
Machado I, Requena C, López-Reig R, Fernández-Serra A, Giner F, Cruz J, Traves V, Lavernia J, Claramunt R, Llombart B, López-Guerrero JA, Llombart-Bosch A. Tumor Microenvironment and Its Clinicopathologic and Prognostic Association in Cutaneous and Noncutaneous Angiosarcomas. Am J Clin Pathol 2023; 160:18-34. [PMID: 36893014 DOI: 10.1093/ajcp/aqad003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 01/09/2023] [Indexed: 03/10/2023] Open
Abstract
OBJECTIVES We explored features of the angiosarcoma (AS) tumor microenvironment to discover subtypes that may respond to immunotherapy. METHODS Thirty-two ASs were included. Tumors were studied by histology, immunohistochemistry (IHC), and gene expression profile using the HTG EdgeSeq Precision Immuno-Oncology Assay. RESULTS Comparing cutaneous and noncutaneous ASs, the second group showed 155 deregulated genes, and unsupervised hierarchical clustering (UHC) delineated two groups: the first mostly cutaneous AS and the second mainly noncutaneous AS. Cutaneous ASs showed a significantly higher proportion of T cells, natural killer cells, and naive B cells. ASs without MYC amplification revealed a higher immunoscore in comparison with ASs with MYC amplification. PD-L1 was significantly overexpressed in ASs without MYC amplification. UHC showed 135 deregulated genes differentially expressed when comparing ASs from the non-head and neck area with patients who had AS in the head and neck area. ASs from the head and neck area showed high immunoscore. PD1/PD-L1 content was significantly more highly expressed in ASs from the head and neck area. IHC and HTG gene expression profiling revealed a significant correlation between PD1, CD8, and CD20 protein expression but not PD-L1. CONCLUSIONS Our HTG analyses confirmed a high degree of tumor and microenvironment heterogeneity. Cutaneous ASs, ASs without MYC amplification, and ASs located in the head and neck area seem to be the most immunogenic subtypes in our series.
Collapse
Affiliation(s)
- Isidro Machado
- Pathology Department, Instituto Valenciano de Oncología, Valencia, Spain
- Patologika Laboratory, Hospital QuirónSalud, Valencia, Spain
| | - Celia Requena
- Dermatology Department, Instituto Valenciano de Oncología, Valencia, Spain
| | - Raquel López-Reig
- Laboratory of Molecular Biology, Instituto Valenciano de Oncología, Valencia, Spain
| | | | - Francisco Giner
- Pathology Department, Universitary Hospital, La Fe, Valencia, Spain
| | - Julia Cruz
- Pathology Department, Instituto Valenciano de Oncología, Valencia, Spain
| | - Victor Traves
- Pathology Department, Instituto Valenciano de Oncología, Valencia, Spain
| | - Javier Lavernia
- Oncology Unit, Instituto Valenciano de Oncología, Valencia, Spain
| | - Reyes Claramunt
- Laboratory of Molecular Biology, Instituto Valenciano de Oncología, Valencia, Spain
| | - Beatriz Llombart
- Dermatology Department, Instituto Valenciano de Oncología, Valencia, Spain
| | | | | |
Collapse
|
7
|
Machado I, Hosler GA, Traves V, Claramunt R, Sanmartín O, Santonja C, Carvajal N, Zazo S, Requena L, Alfonso VS, Domenech EV, Llombart‐Bosch A, Bridge JA, Linos K. Superficial
GLI1
‐amplified mesenchymal neoplasms: Expanding the spectrum of an emerging entity which reaches the realm of dermatopathology. J Cutan Pathol 2022; 50:487-499. [PMID: 36316249 DOI: 10.1111/cup.14345] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/26/2022] [Accepted: 10/19/2022] [Indexed: 11/05/2022]
Abstract
Mesenchymal neoplasms with GLI1 alterations (rearrangements and/or amplification) have been reported recently in several anatomic locations, which include head and neck, soft tissue, and gastrointestinal tract. Herein, to the best of our knowledge, we describe the first three cases of superficial/subcutaneous mesenchymal neoplasm with GLI1 amplification. The neoplasms exhibited low-grade cytologic features with predominant round cell morphology, glomangioma-like areas and a rich background capillary network. There were two to three mitotic figures per 10 HPF and focal necrosis in one case. The tumors exhibited variable expression of CDK4, MDM2, STAT6, D2-40, CD56 and cyclin D1. p16 had strong and diffuse nuclear and cytoplasmic expression in two cases. Numerous other stains were negative. Fluorescence in situ hybridization detected GLI1, DDIT3, and CDK4 coamplification in all cases, while next generation sequencing did not detect a GLI1 gene fusion. The overall features were compatible with a GLI1-amplified mesenchymal neoplasm. In Case 1 a new distant skin lesion appeared 1 month after the surgery exhibiting similar morphology albeit with a higher mitotic index. In Cases 2 and 3, there is no evidence of local recurrence or systemic disease after 8 years and 1 month of follow-up, respectively. These new cases of superficial GLI1-amplified neoplasm expand its clinical spectrum and enter the realm of dermatopathology. The combination of CDK4, cyclin D1, D2-40, and p16 expression with variable MDM2, STAT6, CD56, and S100 immunoreactivity in a low-grade neoplasm with round/ovoid cytomorphology resembling a vascular or adnexal neoplasm may suggest the possibility of GLI1-amplified neoplasm.
Collapse
Affiliation(s)
- Isidro Machado
- Pathology Department, Instituto Valenciano de Oncología Valencia Spain
- Pathology Department, Patologika Laboratory, Hospital QuironSalud Valencia Spain
| | - Gregory A. Hosler
- Dermatopathology, ProPath, Dallas, TX. University of Texas Southwestern, Department of Dermatology
| | - Victor Traves
- Pathology Department, Instituto Valenciano de Oncología Valencia Spain
| | - Reyes Claramunt
- Laboratory of Molecular Biology, Instituto Valenciano de Oncología Valencia Spain
| | - Onofre Sanmartín
- Department of Dermatology Instituto Valenciano de Oncología Valencia Spain
| | | | - Nerea Carvajal
- Pathology Department Fundación Jiménez Díaz Madrid Spain
| | - Sandra Zazo
- Pathology Department Fundación Jiménez Díaz Madrid Spain
| | - Luis Requena
- Dermatology Department Fundación Jiménez Díaz Madrid Spain
| | | | | | | | - Julia A. Bridge
- Department of Pathology and Microbiology University of Nebraska Medical Center Omaha NE USA
- Division of Molecular Pathology, ProPath Dallas TX USA
| | - Konstantinos Linos
- Memorial Sloan Kettering Cancer Center, Department of Pathology & Laboratory Medicine New York NY USA
| |
Collapse
|
8
|
Machado I, Martí Ibor E, Berbegall AP, Alcácer Fernández-Coronado J, Claramunt R, Duarte Novo JE, Mosquera Reboredo J, Concha López Á, Alcácer García J. [Histological, immunohistochemical and molecular study of a paratesticular dedifferentiated liposarcoma with inflammatory myofibroblastic tumor-like features]. Rev Esp Patol 2022; 55:212-217. [PMID: 35779890 DOI: 10.1016/j.patol.2021.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 06/26/2021] [Accepted: 07/04/2021] [Indexed: 06/15/2023]
Abstract
We report the histological, immunohistochemical, and molecular findings of a dedifferentiated liposarcoma with inflammatory myofibroblastic tumor-like features occurring in the paratesticular region. Histologically, the dedifferentiated component closely resembled an inflammatory myofibroblastic tumor. The neoplastic cells were positive for smooth muscle actin with focal CD56, CD99, Bcl2 and EMA expression. WT1, calretinin, myogenin, CK(AE1/AE3), desmin, H-caldesmon, CD34, ALK, CKIT, DOG1, MUC4 and STAT6 were negative. MDM2 showed diffuse and strong nuclear positivity in neoplastic cells and fluorescence in situ hybridization (FISH) revealed amplified MDM2 (high level) but no SYT rearrangement. Although a lipomatous component was evident macroscopically, well-differentiated liposarcomatous components were not evident in the section examined. Dedifferentiated liposarcoma can have prominent inflammatory myofibroblastic tumor-like features. Pathologists should be aware of this histological variant in order to avoid misdiagnosing dedifferentiated liposarcoma as inflammatory myofibroblastic tumor or other spindle cell tumors which have different behavioral patterns and treatment requirements.
Collapse
Affiliation(s)
- Isidro Machado
- Departamento de Patología, Instituto Valenciano de Oncología, Valencia, España; Departamento de Patología, Patologika Laboratorio, Hospital Quirón-Salud, Valencia, España.
| | - Encarnación Martí Ibor
- Departamento de Patología, Patologika Laboratorio, Hospital Quirón-Salud, Valencia, España; Departamento de Patología, Hospital Peset Alexandre, Valencia, España
| | - Ana P Berbegall
- Departamento de Patología, Patologika Laboratorio, Hospital Quirón-Salud, Valencia, España
| | | | - Reyes Claramunt
- Departamento de Biología Molecular, Instituto Valenciano de Oncología, Valencia, España
| | | | | | | | - Javier Alcácer García
- Departamento de Patología, Patologika Laboratorio, Hospital Quirón-Salud, Valencia, España
| |
Collapse
|
9
|
Claramunt R, García Páez J, Alvarez L, Spottorno J, Ros A, Casado M. Short-term fatigue testing can predict medium-term pericardium behaviour. J Mech Behav Biomed Mater 2011; 4:1929-35. [DOI: 10.1016/j.jmbbm.2011.06.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Revised: 06/13/2011] [Accepted: 06/13/2011] [Indexed: 11/15/2022]
|
10
|
García Páez JM, Claramunt R, Jorge Herrero E, Millan I, Tolmos JR, Alvarez L, Cordon A, Rocha A, Sanz P, Ayuso B, Ros A. Energy consumption as a predictor test of the durability of a biological tissue employed in cardiac bioprosthesis. J Biomed Mater Res A 2009; 89:336-44. [PMID: 18431770 DOI: 10.1002/jbm.a.31970] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The mechanical behavior of the young bull pericardium in a fatigue test has been studied. This material is a similar tissue to those used in valve leaflet construction for a cardiac bioprosthesis. The consumed energy on each test was evaluated and afterwards used as a predictor of the biomaterial strength. Two-hundred and nine samples were tested to cyclical fatigue. The cut-off point to determine the sample quality was whether or not they resisted at least 4500 cycles. Only 22 samples withstood over that point (10.52%). The samples were classified according to their fatigue behavior in excellent, undefined and unsuitable. By using as a reference the consumed energy in the first 25 cycles, we could distinguish correctly (between 93.2 and 96.1%) the unsuitable material and most of the excellent (between 78.1 and 95.2%). From the rejected material 77% was really detachable and from the accepted, only 50% was excellent, with an equal methodology. The receiver operating characteristics curve was employed to establish decision levels when selecting samples, being 0.85 the best area (theoretical maximum value of 1). It is concluded that the energy wasted is a good predictor of the strength of the tissue. More than 90% of the unsuitable material and 50% of the excellent material (5% of all the material) is detected with this method.
Collapse
Affiliation(s)
- J M García Páez
- Servicio de Medicina Interna, Clínica Puerta de Hierro, C/San Martín de Porres n degrees 4, Madrid 28035, España.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Garcia Paez JM, Claramunt R, Millan I, Valdes M, Arriaga Y, Cordon A, Maestro MA, Rocha A, Refusta S, Ros A, Alvarez L, Jorge-Herrero E. Influence of the suture in the propagation of tears in calf pericardium employed in the construction of cardiac bioprostheses. J Appl Biomater Biomech 2008; 6:55-62. [PMID: 20740447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The tearing of the fibers of biomaterials employed in implants or bioprostheses leads to early the failure of these devices. The purpose of this study was to determine the force necessary to propagate a tear in a biological tissue, calf pericardium, when sutured. We analyzed the outcome of 230 trials. There was a loss of resistance to tearing in samples sutured edge-to-edge as compared to unsutured control samples. This loss was not observed when the suture was preceded by an intact or protective zone. The values corresponding to the tearing force for an overlapping suture, especially when sewn with Gore-Tex(R), were higher than those obtained in controls. This study confirms the deleterious effect of the edge-to-edge suture, which can be minimized by protecting the suture, and the excellent behavior of the overlapping suture.
Collapse
Affiliation(s)
- J M Garcia Paez
- Unidad de Biomateriales, Servicio de Cirugía Experimental, Hospital Universitario Puerta de Hierro, Madrid - Spain
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Claramunt R, Sevilla T, Lupo V, Cuesta A, Millán JM, Vílchez JJ, Palau F, Espinós C. The p.R1109X mutation in SH3TC2 gene is predominant in Spanish Gypsies with Charcot-Marie-Tooth disease type 4. Clin Genet 2007; 71:343-9. [PMID: 17470135 DOI: 10.1111/j.1399-0004.2007.00774.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Charcot-Marie-Tooth (CMT) disease type 4 (CMT4) is the name given to autosomal recessive forms of hereditary motor and sensory neuropathy (HMSN). When we began this study, three genes or loci associated with inherited peripheral neuropathies had already been identified in the European Gypsy population: HMSN-Lom (MIM 601455), HMSN-Russe (MIM 605285) and the congenital cataracts facial dysmorphism neuropathy syndrome (MIM 604168). We have carried out genetic analyses in a series of 20 Spanish Gypsy families diagnosed with a demyelinating CMT disease compatible with an autosomal recessive trait. We found the p.R148X mutation in the N-myc downstream-regulated gene 1 gene to be responsible for the HMSN-Lom in four families and also possible linkage to the HMSN-Russe locus in three others. We have also studied the CMT4C locus because of the clinical similarities and showed that in 10 families, the disease is caused by mutations located on the SH3 domain and tetratricopeptide repeats 2 (SH3TC2) gene: p.R1109X in 20 out of 21 chromosomes and p.C737_P738delinsX in only one chromosome. Moreover, the SH3TC2 p.R1109X mutation is associated with a conserved haplotype and, therefore, may be a private founder mutation for the Gypsy population. Estimation of the allelic age revealed that the SH3TC2 p.R1109X mutation may have arisen about 225 years ago, probably as the consequence of a bottleneck.
Collapse
Affiliation(s)
- R Claramunt
- Instituto de Biomedicina, Consejo Superior de Investigaciones Científicas, Valencia, Spain
| | | | | | | | | | | | | | | |
Collapse
|
13
|
Abstract
Double trisomies are a rare occurrence. We report the first case of a Down and Klinefelter's syndrome (48,XXY,+21) in a fetus that was prenatally diagnosed during the 15th week of pregnancy. Even though the nasal bone was present, and the color-Doppler study of the ductus venosus and the nuchal thickness were normal, the maternal serum test results indicated an increased risk of Down syndrome and consequentially a genetic amniocentesis was performed. A 48,XXY,+21 karyotype was observed and the patient decided to terminate the pregnancy. In this case, we did not find the typical ultrasound (US) signs that would have led us to the chromosomopathy; furthermore, we emphasize the advantages of using biochemical screening which, in our case, were crucial in arriving at the correct diagnosis.
Collapse
Affiliation(s)
- M Sanz-Cortés
- Departamento de Obstetricia y Ginecologia, Hospital Clínico Universitario de Valencia, Spain.
| | | | | | | | | |
Collapse
|
14
|
Claramunt R, Pedrola L, Sevilla T, López de Munain A, Berciano J, Cuesta A, Sánchez-Navarro B, Millán JM, Saifi GM, Lupski JR, Vílchez JJ, Espinós C, Palau F. Genetics of Charcot-Marie-Tooth disease type 4A: mutations, inheritance, phenotypic variability, and founder effect. J Med Genet 2006; 42:358-65. [PMID: 15805163 PMCID: PMC1736030 DOI: 10.1136/jmg.2004.022178] [Citation(s) in RCA: 120] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
15
|
Pedrola L, Espert A, Wu X, Claramunt R, Shy ME, Palau F. GDAP1, the protein causing Charcot–Marie–Tooth disease type 4A, is expressed in neurons and is associated with mitochondria. Hum Mol Genet 2005; 14:1087-94. [PMID: 15772096 DOI: 10.1093/hmg/ddi121] [Citation(s) in RCA: 143] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Mutations in GDAP1, the ganglioside-induced differentiation-associated protein 1 gene, cause Charcot-Marie-Tooth (CMT) type 4A, a severe autosomal recessive form of neuropathy associated with either demyelinating or axonal phenotypes. Here, we demonstrate that GDAP1 has far greater expression in neurons than in myelinating Schwann cells. We investigated cell localization of GDAP1 in a human neuroblastoma cell line by means of transient overexpression and co-localization with organelle markers in COS-7 cells and by western blot analysis of subcell fractions with anti-GDAP1 polyclonal antibodies. We observed that GDAP1 is localized in mitochondria. We also show that C-terminal transmembrane domains are necessary for the correct localization in mitochondria; however, missense mutations do not change the mitochondrial pattern of the wild-type protein. Our findings suggest that CMT4A disease is in fact a mitochondrial neuropathy mainly involving axons and represents a disease belonging to the new category of mitochondrial disorders caused by mutations in nuclear genes. We postulate that GDAP1 may be related to the maintenance of the mitochondrial network.
Collapse
Affiliation(s)
- Laia Pedrola
- Laboratory of Genetics and Molecular Medicine, Department of Genomics and Proteomics, Instituto de Biomedicina, CSIC, Valencia, Spain
| | | | | | | | | | | |
Collapse
|
16
|
Abboud JLM, Notario R, Ballesteros E, Herreros M, Mo O, Yanez M, Elguero J, Boyer G, Claramunt R. Dissociative Attachment of Protons to 1-Fluoro- and 1-Chloroadamantane in the Gas Phase. J Am Chem Soc 2002. [DOI: 10.1021/ja00085a032] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
17
|
Sastre R, Catalina F, Mateo JL, Claramunt R, Santa-Maria MD, Catalán J. Mechanism of photostabilization of polystyrene film by dihydroxyphenyl-pirazoles. ACTA ACUST UNITED AC 1990. [DOI: 10.1002/pola.1990.080281312] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
18
|
Escario JA, Igea AM, Contreras M, Martinez-Fernandez AR, Claramunt R, Lopez C. Antiparasitic activity of nine pyrazole derivatives against Trichomonas vaginalis, Entamoeba invadens and Plasmodium berghei. Ann Trop Med Parasitol 1988; 82:257-62. [PMID: 3074738 DOI: 10.1080/00034983.1988.11812241] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Nine nitropyrazole derivatives were prepared and tested against Trichomonas vaginalis in vitro and in vivo, Entamoeba invadens in vitro and Plasmodium berghei in vivo. Three of the compounds, 4-4-nitropyrazole, 1-methyl-4-nitropyrazole and 4,4'-dinitro-1,1'-methylenedipyrazole, have an activity similar to that of metronidazole (used as the reference compound) against T. vaginalis and E. invadens after 48 hours of incubation. All the compounds tested were inactive against P. berghei.
Collapse
Affiliation(s)
- J A Escario
- Department of Parasitology, Faculty of Pharmacy, Complutense University, Madrid, Spain
| | | | | | | | | | | |
Collapse
|