Marc Ladanyi

KRAS Mutations and Primary Resistance of Lung Adenocarcinomas to Gefitinib or Erlotinib (2005)

William Pao, Theresa Y. Wang, Gregory J. Riely, Vincent A. Miller, Qiulu Pan, Marc Ladanyi, ...

Mutational analysis of the KRAS gene in lung cancer patients treated with two different kinase inhibitors suggests that tumors with KRAS mutations do not respond to these drugs.

KRAS Mutations and Primary Resistance of Lung Adenocarcinomas to Gefitinib or Erlotinib (2005)

William Pao, Theresa Y. Wang, Gregory J. Riely, Vincent A. Miller, Qiulu Pan, Marc Ladanyi, ...

Background Somatic mutations in the gene for the epidermal growth factor receptor (EGFR) are found in adenocarcinomas of the lung and are associated with sensitivity to the kinase inhibitors...

Genome-wide array comparative genomic hybridization analysis reveals distinct amplifications in osteosarcoma (2004)

Man, Tsz-Kwong, Lu, Xin-Yan, Jaeweon, Kim, Perlaky, Laszlo, Harris, Charles P, Shah, Shishir, ...

Abstract Background Osteosarcoma is a highly malignant bone neoplasm of children and young adults. It is characterized by extremely complex karyotypes and high frequency of chromosomal...

The presence of p53 mutations in human osteosarcomas correlates with high levels of genomic instability (2003)

Overholtzer, Michael, Rao, Pulivarthi H., Favis, Reyna, Lu, Xin-Yan, Elowitz, Michael B., Barany, Francis, ...

The p53 gene is a critical tumor suppressor that is inactivated in a majority of cancers. The central role of p53 in response to stresses such as DNA damage, hypoxia, and oncogene activation...

Amplification of the MYC Gene in Osteosarcoma Secondary to Paget's Disease of Bone (1997)

Takafumi Ueda, John H. Healey, Andrew G. Huvos, Marc Ladanyi

Purpose. In a previous series of 25 human osteosarcoma samples studied for MYC gene amplification, we found amplification in two cases (8%), including one arising in association with Paget's disease...

Cloning of an Alpha-TFEB fusion in renal tumors harboring the t(6;11)(p21;q13) chromosome translocation

Davis, Ian J., Hsi, Bae-Li, Arroyo, Jason D., Vargas, Sara O., Yeh, Y. Albert, Motyckova, Gabriela, ...

MITF, TFE3, TFEB, and TFEC comprise a transcription factor family (MiT) that regulates key developmental pathways in several cell lineages. Like MYC, MiT members are basic helix-loop-helix-leucine...

The presence of p53 mutations in human osteosarcomas correlates with high levels of genomic instability

Overholtzer, Michael, Rao, Pulivarthi H., Favis, Reyna, Lu, Xin-Yan, Elowitz, Michael B., Barany, Francis, ...

The p53 gene is a critical tumor suppressor that is inactivated in a majority of cancers. The central role of p53 in response to stresses such as DNA damage, hypoxia, and oncogene activation...

KRAS Mutations and Primary Resistance of Lung Adenocarcinomas to Gefitinib or Erlotinib

Pao, William, Wang, Theresa Y, Riely, Gregory J, Miller, Vincent A, Pan, Qiulu, Ladanyi, Marc, ...

Mutational analysis of the KRAS gene in lung cancer patients treated with two different kinase inhibitors suggests that tumors with KRAS mutations do not respond to these drugs

Classification and diagnostic prediction of cancers using gene expression profiling and artificial neural networks

Khan, Javed, Wei, Jun S., Ringnér, Markus, Saal, Lao H., Ladanyi, Marc, Westermann, Frank, ...

The purpose of this study was to develop a method of classifying cancers to specific diagnostic categories based on their gene expression signatures using artificial neural networks (ANNs). We...

Cloning of an Alpha-TFEB fusion in renal tumors harboring the t(6;11)(p21;q13) chromosome translocation

Davis, Ian J., Hsi, Bae-Li, Arroyo, Jason D., Vargas, Sara O., Yeh, Y. Albert, Motyckova, Gabriela, ...

MITF, TFE3, TFEB, and TFEC comprise a transcription factor family (MiT) that regulates key developmental pathways in several cell lineages. Like MYC, MiT members are basic helix-loop-helix-leucine...

The presence of p53 mutations in human osteosarcomas correlates with high levels of genomic instability

Overholtzer, Michael, Rao, Pulivarthi H., Favis, Reyna, Lu, Xin-Yan, Elowitz, Michael B., Barany, Francis, ...

The p53 gene is a critical tumor suppressor that is inactivated in a majority of cancers. The central role of p53 in response to stresses such as DNA damage, hypoxia, and oncogene activation...

KRAS Mutations and Primary Resistance of Lung Adenocarcinomas to Gefitinib or Erlotinib

Pao, William, Wang, Theresa Y, Riely, Gregory J, Miller, Vincent A, Pan, Qiulu, Ladanyi, Marc, ...

Mutational analysis of the KRAS gene in lung cancer patients treated with two different kinase inhibitors suggests that tumors with KRAS mutations do not respond to these drugs

ATIC-ALK: A Novel Variant ALK Gene Fusion in Anaplastic Large Cell Lymphoma Resulting from the Recurrent Cryptic Chromosomal Inversion, inv(2)(p23q35)

Colleoni, Gisele W. B., Bridge, Julia A., Garicochea, Bernardo, Liu, Jian, Filippa, Daniel A., Ladanyi, Marc

The subset of CD30-positive anaplastic large cell lymphomas (ALCL) with the NPM-ALK gene fusion arising from the t(2;5)(p23;q35) forms a distinct clinical and prognostic entity. Recently, various...

Alterations of Cell Cycle Regulators in Localized Synovial Sarcoma : A Multifactorial Study with Prognostic Implications

Antonescu, Cristina R., Leung, Denis H., Dudas, Maria, Ladanyi, Marc, Brennan, Murray, Woodruff, James M., ...

Genetic alterations of cell cycle regulators are thought to represent uncommon and possible secondary events in sarcomas characterized by recurrent chromosomal translocations. The present study...

Association of EWS-FLI1 Type 1 Fusion with Lower Proliferative Rate in Ewing’s Sarcoma

De Alava, Enrique, Panizo, Angel, Antonescu, Cristina R., Huvos, Andrew G., Pardo-Mindán, F. Javier, Barr, Frederic G., ...

The Ewing’s sarcoma (ES) family of tumors, including peripheral neuroectodermal tumor (PNET), is defined genetically by specific chromosomal translocations resulting in fusion of the EWS gene with...

Primary Renal Neoplasms with the ASPL-TFE3 Gene Fusion of Alveolar Soft Part Sarcoma : A Distinctive Tumor Entity Previously Included among Renal Cell Carcinomas of Children and Adolescents

Argani, Pedram, Antonescu, Cristina R., Illei, Peter B., Lui, Man Yee, Timmons, Charles F., Newbury, Robert, ...

The unbalanced translocation, der(17)t(X;17)(p11.2;q25), is characteristic of alveolar soft part sarcoma (ASPS). We have recently shown that this translocation fuses the TFE3 transcription factor...

Fusion of the ALK Gene to the Clathrin Heavy Chain Gene, CLTC, in Inflammatory Myofibroblastic Tumor

Bridge, Julia A., Kanamori, Masahiko, Ma, Zhigui, Pickering, Diane, Hill, D. Ashley, Lydiatt, William, ...

Inflammatory myofibroblastic tumor (IMT) is a rare, but distinctive mesenchymal neoplasm composed of fascicles of bland myofibroblasts admixed with a prominent inflammatory component. Genetic studies...

Expression Profiling of Synovial Sarcoma by cDNA Microarrays : Association of ERBB2, IGFBP2, and ELF3 with Epithelial Differentiation

Allander, Susanne V., Illei, Peter B., Chen, Yidong, Antonescu, Cristina R., Bittner, Mike, Ladanyi, Marc, ...

Synovial sarcoma is an aggressive spindle cell sarcoma with two major histological subtypes, biphasic and monophasic, defined respectively by the presence or absence of areas of glandular epithelial...

The Precrystalline Cytoplasmic Granules of Alveolar Soft Part Sarcoma Contain Monocarboxylate Transporter 1 and CD147

Ladanyi, Marc, Antonescu, Cristina R., Drobnjak, Marija, Baren, Ann, Lui, Man Yee, Golde, David W., ...

Alveolar soft part sarcoma (ASPS) is an unusual tumor of young adults with the characteristic presence on ultrastructural analysis of rhomboid or rectangular cytoplasmic crystals. These...

Rapid Polymerase Chain Reaction-Based Detection of Epidermal Growth Factor Receptor Gene Mutations in Lung Adenocarcinomas

Pan, Qiulu, Pao, William, Ladanyi, Marc

Somatic mutations in the tyrosine kinase domain of the epidermal growth factor receptor (EGFR) gene are present in lung adenocarcinomas that respond to the EGFR inhibitors gefitinib and erlotinib....

Specificity of TLS-CHOP Rearrangement for Classic Myxoid/Round Cell Liposarcoma: Absence in Predominantly Myxoid Well-Differentiated Liposarcomas

Antonescu, Cristina R., Elahi, Abul, Humphrey, Marcia, Lui, Man Yee, Healey, John H., Brennan, Murray F., ...

Myxoid liposarcoma (LS), the most common subtype of LS, is known to be characterized by the specific t(12;16) resulting in a TLS-CHOP fusion in almost all cases. We wished to address the following...

Molecular Diagnosis of Clear Cell Sarcoma: Detection of EWS-ATF1 and MITF-M Transcripts and Histopathological and Ultrastructural Analysis of 12 Cases

Antonescu, Cristina R., Tschernyavsky, Sylvia J., Woodruff, James M., Jungbluth, Achim A., Brennan, Murray F., Ladanyi, Marc

Clear cell sarcoma (CCS), also known as melanoma of soft parts, is an uncommon deep soft tissue tumor presenting typically in the lower extremities of young adults. Previous cytogenetic studies have...

Impact of Polysomy 17 on HER-2/neu Immunohistochemistry in Breast Carcinomas without HER-2/neu Gene Amplification

Lal, Priti, Salazar, Paulo A., Ladanyi, Marc, Chen, Beiyun

Her-2/neu, a proto-oncogene located on chromosome 17, is an important biomarker in breast carcinoma. Immunohistochemistry (IHC) is currently the most widely used method for assessing Her-2/neu...

Amplification of the MYC Gene in Osteosarcoma Secondary to Paget's Disease of Bone

Ueda, Takafumi, Healey, John H., Huvos, Andrew G., Ladanyi, Marc

Purpose. In a previous series of 25 human osteosarcoma samples studied for MYC gene amplification, we found amplification in two cases (8%), including one arising in association with Paget's disease...

MET amplification occurs with or without T790M mutations in EGFR mutant lung tumors with acquired resistance to gefitinib or erlotinib

Bean, James, Brennan, Cameron, Shih, Jin-Yuan, Riely, Gregory, Viale, Agnes, Wang, Lu, ...

In human lung adenocarcinomas harboring EGFR mutations, a second-site point mutation that substitutes methionine for threonine at position 790 (T790M) is associated with approximately half of cases...

Functional Copy-Number Alterations in Cancer

Taylor, Barry S., Barretina, Jordi, Socci, Nicholas D., DeCarolis, Penelope, Ladanyi, Marc, Meyerson, Matthew, ...

Understanding the molecular basis of cancer requires characterization of its genetic defects. DNA microarray technologies can provide detailed raw data about chromosomal aberrations in tumor samples....

Undifferentiated Small Round Cell Sarcomas with Rare EWS Gene Fusions: Identification of a Novel EWS-SP3 Fusion and of Additional Cases with the EWS-ETV1 and EWS-FEV Fusions

Wang, Lu, Bhargava, Rohit, Zheng, Tao, Wexler, Leonard, Collins, Margaret H., Roulston, Diane, ...

Ewing family tumors (EFTs) are prototypical primitive small round blue cell sarcomas arising in bone or extraskeletal soft tissues in children or adolescents. EFTs show fusions of EWS with a gene of...