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Roberta Bichi
Researcher at Thomas Jefferson University
Publications - 5
Citations - 5769
Roberta Bichi is an academic researcher from Thomas Jefferson University. The author has contributed to research in topics: Gene & T cell. The author has an hindex of 5, co-authored 5 publications receiving 5442 citations.
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Journal ArticleDOI
Frequent deletions and down-regulation of micro- RNA genes miR15 and miR16 at 13q14 in chronic lymphocytic leukemia
George A. Calin,Calin Dan Dumitru,Masayoshi Shimizu,Roberta Bichi,Simona Zupo,Evan Noch,Hansjuerg Aldler,Sashi Rattan,Michael J. Keating,Kanti R. Rai,Laura Z. Rassenti,Thomas J. Kipps,Massimo Negrini,Florencia Bullrich,Carlo M. Croce +14 more
TL;DR: Detailed deletion and expression analysis shows that miR15 and miR16 are located within a 30-kb region of loss in CLL, and that both genes are deleted or down-regulated in the majority (≈68%) of CLL cases.
Journal ArticleDOI
Parkin, a gene implicated in autosomal recessive juvenile parkinsonism, is a candidate tumor suppressor gene on chromosome 6q25-q27.
Rossano Cesari,Eric S. Martin,George A. Calin,Francesca Pentimalli,Roberta Bichi,Holly McAdams,Francesco Trapasso,Alessandra Drusco,Masayoshi Shimizu,Valeria Masciullo,Giuseppina D'Andrilli,Giovanni Scambia,Maria Picchio,Hansjuerg Alder,Andrew K. Godwin,Carlo M. Croce +15 more
TL;DR: The loss of heterozygosity observed at chromosome 6q25–q26 may contribute to the initiation and/or progression of cancer by inactivating or reducing the expression of the Parkin gene, another example of a large tumor suppressor gene, like FHIT and WWOX, located at a common fragile site.
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Akt phosphorylates and regulates the orphan nuclear receptor Nur77
Yuri Pekarsky,Cora Hallas,Alexey Palamarchuk,Anatoliy Koval,Florencia Bullrich,Yoko Hirata,Roberta Bichi,Jean Letofsky,Carlo M. Croce +8 more
TL;DR: It is shown that Akt interacts with Nur77 and inactivates Nur77 by phosphorylated Ser-350 of the Nur77 protein within its DNA-binding domain in a phosphatidylinositol 3-kinase-dependent manner, connecting the phosph atidyl inositol3-kinases-dependent Akt pathway and a nuclear receptor pathway.
Journal ArticleDOI
Deregulated expression of TCL1 causes T cell leukemia in mice.
Laura Virgilio,Cristina Lazzeri,Roberta Bichi,Ken-ichi Nibu,Maria Grazia Narducci,Giandomenico Russo,Jay L. Rothstein,Carlo M. Croce +7 more
TL;DR: It is demonstrated that transcriptional activation of the TCL1 protooncogene can cause malignant transformation of T lymphocytes, indicating the role of TCL2 in the initiation of malignant transformed T cell neoplasia in T prolymphocytic leukemias and T chronic lymphocyticLeukmias.
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Genomic analysis of human and mouse TCL1 loci reveals a complex of tightly clustered genes.
Cora Hallas,Yuri Pekarsky,Takahiro Itoyama,James M. Varnum,Roberta Bichi,Jay L. Rothstein,Carlo M. Croce +6 more
TL;DR: The cloning, mapping, and expression analysis of the human and murine TCL1/Tcl1 locus suggest a similar or complementary function of these proteins in early embryogenesis.