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  1. Article ; Online: Combined targeting of HEDGEHOG signaling and BRD4 as a novel therapeutic option against melanoma.

    Pietrobono, Silvia / Stecca, Barbara

    Oncotarget

    2023  Volume 14, Page(s) 526–527

    MeSH term(s) Humans ; Transcription Factors ; Hedgehog Proteins ; Nuclear Proteins/metabolism ; Melanoma/drug therapy ; Signal Transduction ; Zinc Finger Protein GLI1/genetics ; Zinc Finger Protein GLI1/metabolism ; Cell Line, Tumor ; Cell Proliferation ; Cell Cycle Proteins
    Chemical Substances Transcription Factors ; Hedgehog Proteins ; Nuclear Proteins ; Zinc Finger Protein GLI1 ; BRD4 protein, human ; Cell Cycle Proteins
    Language English
    Publishing date 2023-05-26
    Publishing country United States
    Document type Editorial ; Research Support, Non-U.S. Gov't ; Comment
    ZDB-ID 2560162-3
    ISSN 1949-2553 ; 1949-2553
    ISSN (online) 1949-2553
    ISSN 1949-2553
    DOI 10.18632/oncotarget.28441
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Emerging Roles of Hedgehog Signaling in Cancer Immunity.

    Giammona, Alessandro / Crivaro, Enrica / Stecca, Barbara

    International journal of molecular sciences

    2023  Volume 24, Issue 2

    Abstract: Hedgehog-GLI (HH) signaling plays an essential role in embryogenesis and tissue homeostasis. Aberrant activation of the pathway through mutations or other mechanisms is involved in the development and progression of numerous types of cancer, including ... ...

    Abstract Hedgehog-GLI (HH) signaling plays an essential role in embryogenesis and tissue homeostasis. Aberrant activation of the pathway through mutations or other mechanisms is involved in the development and progression of numerous types of cancer, including basal cell carcinoma, medulloblastoma, melanoma, breast, prostate, hepatocellular and pancreatic carcinomas. Activation of HH signaling sustains proliferation, suppresses cell death signals, enhances invasion and metastasis, deregulates cellular metabolism and promotes angiogenesis and tumor inflammation. Targeted inhibition of the HH pathway has therefore emerged as an attractive therapeutic strategy for the treatment of a wide range of cancers. Currently, the Smoothened (SMO) receptor and the downstream GLI transcriptional factors have been investigated for the development of targeted drugs. Recent studies have revealed that the HH signaling is also involved in tumor immune evasion and poor responses to cancer immunotherapy. Here we focus on the effects of HH signaling on the major cellular components of the adaptive and innate immune systems, and we present recent discoveries elucidating how the immunosuppressive function of the HH pathway is engaged by cancer cells to prevent immune surveillance. In addition, we discuss the future prospect of therapeutic options combining the HH pathway and immune checkpoint inhibitors.
    MeSH term(s) Male ; Humans ; Hedgehog Proteins/metabolism ; Signal Transduction ; Carcinoma, Basal Cell/pathology ; Skin Neoplasms ; Cerebellar Neoplasms ; Smoothened Receptor/metabolism ; Zinc Finger Protein GLI1/metabolism
    Chemical Substances Hedgehog Proteins ; Smoothened Receptor ; Zinc Finger Protein GLI1
    Language English
    Publishing date 2023-01-10
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24021321
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Aberrant Sialylation in Cancer: Biomarker and Potential Target for Therapeutic Intervention?

    Pietrobono, Silvia / Stecca, Barbara

    Cancers

    2021  Volume 13, Issue 9

    Abstract: Sialylation is an integral part of cellular function, governing many biological processes including cellular recognition, adhesion, molecular trafficking, signal transduction and endocytosis. Sialylation is controlled by the levels and the activities of ... ...

    Abstract Sialylation is an integral part of cellular function, governing many biological processes including cellular recognition, adhesion, molecular trafficking, signal transduction and endocytosis. Sialylation is controlled by the levels and the activities of sialyltransferases on glycoproteins and lipids. Altered gene expression of these enzymes in cancer yields to cancer-specific alterations of glycoprotein sialylation. Mounting evidence indicate that hypersialylation is closely associated with cancer progression and metastatic spread, and can be of prognostic significance in human cancer. Aberrant sialylation is not only a result of cancer, but also a driver of malignant phenotype, directly impacting key processes such as tumor cell dissociation and invasion, cell-cell and cell-matrix interactions, angiogenesis, resistance to apoptosis, and evasion of immune destruction. In this review we provide insights on the impact of sialylation in tumor progression, and outline the possible application of sialyltransferases as cancer biomarkers. We also summarize the most promising findings on the development of sialyltransferase inhibitors as potential anti-cancer treatments.
    Language English
    Publishing date 2021-04-22
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2527080-1
    ISSN 2072-6694
    ISSN 2072-6694
    DOI 10.3390/cancers13092014
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Novel Therapeutic Approaches with DNA Damage Response Inhibitors for Melanoma Treatment.

    Maresca, Luisa / Stecca, Barbara / Carrassa, Laura

    Cells

    2022  Volume 11, Issue 9

    Abstract: Targeted therapies against components of the mitogen-activated protein kinase (MAPK) pathway and immunotherapies, which block immune checkpoints, have shown important clinical benefits in melanoma patients. However, most patients develop resistance, with ...

    Abstract Targeted therapies against components of the mitogen-activated protein kinase (MAPK) pathway and immunotherapies, which block immune checkpoints, have shown important clinical benefits in melanoma patients. However, most patients develop resistance, with consequent disease relapse. Therefore, there is a need to identify novel therapeutic approaches for patients who are resistant or do not respond to the current targeted and immune therapies. Melanoma is characterized by homologous recombination (HR) and DNA damage response (DDR) gene mutations and by high replicative stress, which increase the endogenous DNA damage, leading to the activation of DDR. In this review, we will discuss the current experimental evidence on how DDR can be exploited therapeutically in melanoma. Specifically, we will focus on PARP, ATM, CHK1, WEE1 and ATR inhibitors, for which preclinical data as single agents, taking advantage of synthetic lethal interactions, and in combination with chemo-targeted-immunotherapy, have been growing in melanoma, encouraging the ongoing clinical trials. The overviewed data are suggestive of considering DDR inhibitors as a valid therapeutic approach, which may positively impact the future of melanoma treatment.
    MeSH term(s) DNA Damage ; Homologous Recombination ; Humans ; Melanoma/drug therapy ; Melanoma/genetics ; Poly(ADP-ribose) Polymerase Inhibitors/pharmacology ; Poly(ADP-ribose) Polymerase Inhibitors/therapeutic use ; Protein Kinase Inhibitors/pharmacology ; Protein Kinase Inhibitors/therapeutic use
    Chemical Substances Poly(ADP-ribose) Polymerase Inhibitors ; Protein Kinase Inhibitors
    Language English
    Publishing date 2022-04-26
    Publishing country Switzerland
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 2661518-6
    ISSN 2073-4409 ; 2073-4409
    ISSN (online) 2073-4409
    ISSN 2073-4409
    DOI 10.3390/cells11091466
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: The Role of Glycosylation in Melanoma Progression.

    De Vellis, Chiara / Pietrobono, Silvia / Stecca, Barbara

    Cells

    2021  Volume 10, Issue 8

    Abstract: Malignant melanoma is the most aggressive form of skin cancer, which originates from the malignant transformation of melanocytes, the melanin-producing cells of the skin. Melanoma progression is typically described as a stepwise process in which ... ...

    Abstract Malignant melanoma is the most aggressive form of skin cancer, which originates from the malignant transformation of melanocytes, the melanin-producing cells of the skin. Melanoma progression is typically described as a stepwise process in which metastasis formation ensues late during disease. A large body of evidence has shown that the accumulation of genetic and epigenetic alterations drives melanoma progression through the different steps. Mortality in melanoma is associated with metastatic disease. Accordingly, early-stage melanoma can be cured in the majority of cases by surgical excision, while late-stage melanoma is a highly lethal disease. Glycosylation is a post-translational modification that involves the transfer of glycosyl moieties to specific amino acid residues of proteins to form glycosidic bonds through the activity of glycosyltransferases. Aberrant glycosylation is considered a hallmark of cancer as it occurs in the majority of tumor types, including melanoma. The most widely occurring glycosylation changes in melanoma are represented by sialylation, fucosylation, and N- and I-glycan branching. In this review, we discuss the role of glycosylation in melanoma and provide insights on the mechanisms by which aberrant glycosylation promotes melanoma progression through activation of invasion and metastasis, immune evasion and cell proliferation.
    MeSH term(s) Animals ; Cell Transformation, Neoplastic/metabolism ; Glycosylation ; Humans ; Melanoma/metabolism ; Polysaccharides/metabolism
    Chemical Substances Polysaccharides
    Language English
    Publishing date 2021-08-19
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2661518-6
    ISSN 2073-4409 ; 2073-4409
    ISSN (online) 2073-4409
    ISSN 2073-4409
    DOI 10.3390/cells10082136
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Role of Protein Kinases in Hedgehog Pathway Control and Implications for Cancer Therapy.

    Montagnani, Valentina / Stecca, Barbara

    Cancers

    2019  Volume 11, Issue 4

    Abstract: Hedgehog (HH) signaling is an evolutionarily conserved pathway that is crucial for growth and tissue patterning during embryonic development. It is mostly quiescent in the adult, where it regulates tissue homeostasis and stem cell behavior. Aberrant ... ...

    Abstract Hedgehog (HH) signaling is an evolutionarily conserved pathway that is crucial for growth and tissue patterning during embryonic development. It is mostly quiescent in the adult, where it regulates tissue homeostasis and stem cell behavior. Aberrant reactivation of HH signaling has been associated to several types of cancer, including those in the skin, brain, prostate, breast and hematological malignancies. Activation of the canonical HH signaling is triggered by binding of HH ligand to the twelve-transmembrane protein PATCHED. The binding releases the inhibition of the seven-transmembrane protein SMOOTHENED (SMO), leading to its phosphorylation and activation. Hence, SMO activates the transcriptional effectors of the HH signaling, that belong to the GLI family of transcription factors, acting through a not completely elucidated intracellular signaling cascade. Work from the last few years has shown that protein kinases phosphorylate several core components of the HH signaling, including SMO and the three GLI proteins, acting as powerful regulatory mechanisms to fine tune HH signaling activities. In this review, we will focus on the mechanistic influence of protein kinases on HH signaling transduction. We will also discuss the functional consequences of this regulation and the possible implications for cancer therapy.
    Language English
    Publishing date 2019-03-29
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2527080-1
    ISSN 2072-6694
    ISSN 2072-6694
    DOI 10.3390/cancers11040449
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Novel Therapeutic Approaches with DNA Damage Response Inhibitors for Melanoma Treatment

    Luisa Maresca / Barbara Stecca / Laura Carrassa

    Cells, Vol 11, Iss 1466, p

    2022  Volume 1466

    Abstract: Targeted therapies against components of the mitogen-activated protein kinase (MAPK) pathway and immunotherapies, which block immune checkpoints, have shown important clinical benefits in melanoma patients. However, most patients develop resistance, with ...

    Abstract Targeted therapies against components of the mitogen-activated protein kinase (MAPK) pathway and immunotherapies, which block immune checkpoints, have shown important clinical benefits in melanoma patients. However, most patients develop resistance, with consequent disease relapse. Therefore, there is a need to identify novel therapeutic approaches for patients who are resistant or do not respond to the current targeted and immune therapies. Melanoma is characterized by homologous recombination (HR) and DNA damage response (DDR) gene mutations and by high replicative stress, which increase the endogenous DNA damage, leading to the activation of DDR. In this review, we will discuss the current experimental evidence on how DDR can be exploited therapeutically in melanoma. Specifically, we will focus on PARP, ATM, CHK1, WEE1 and ATR inhibitors, for which preclinical data as single agents, taking advantage of synthetic lethal interactions, and in combination with chemo-targeted-immunotherapy, have been growing in melanoma, encouraging the ongoing clinical trials. The overviewed data are suggestive of considering DDR inhibitors as a valid therapeutic approach, which may positively impact the future of melanoma treatment.
    Keywords DNA damage response ; melanoma ; PARP ; ATM ; CHK1 ; WEE1 ; Biology (General) ; QH301-705.5
    Language English
    Publishing date 2022-04-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Impact of ERK5 on the Hallmarks of Cancer.

    Stecca, Barbara / Rovida, Elisabetta

    International journal of molecular sciences

    2019  Volume 20, Issue 6

    Abstract: Extracellular signal-regulated kinase 5 (ERK5) belongs to the mitogen-activated protein kinase (MAPK) family that consists of highly conserved enzymes expressed in all eukaryotic cells and elicits several biological responses, including cell survival, ... ...

    Abstract Extracellular signal-regulated kinase 5 (ERK5) belongs to the mitogen-activated protein kinase (MAPK) family that consists of highly conserved enzymes expressed in all eukaryotic cells and elicits several biological responses, including cell survival, proliferation, migration, and differentiation. In recent years, accumulating lines of evidence point to a relevant role of ERK5 in the onset and progression of several types of cancer. In particular, it has been reported that ERK5 is a key signaling molecule involved in almost all the biological features of cancer cells so that its targeting is emerging as a promising strategy to suppress tumor growth and spreading. Based on that, in this review, we pinpoint the hallmark-specific role of ERK5 in cancer in order to identify biological features that will potentially benefit from ERK5 targeting.
    MeSH term(s) Animals ; Biomarkers ; Cell Proliferation ; Cell Transformation, Neoplastic/genetics ; Cell Transformation, Neoplastic/metabolism ; Disease Susceptibility ; Energy Metabolism ; Genomic Instability ; Humans ; Immunity ; MAP Kinase Signaling System ; Mitogen-Activated Protein Kinase 7/genetics ; Mitogen-Activated Protein Kinase 7/metabolism ; Neoplasm Invasiveness ; Neoplasm Metastasis ; Neoplasms/drug therapy ; Neoplasms/etiology ; Neoplasms/metabolism ; Neoplasms/pathology ; Neovascularization, Pathologic/genetics ; Neovascularization, Pathologic/metabolism ; Signal Transduction
    Chemical Substances Biomarkers ; MAPK7 protein, human (EC 2.7.11.24) ; Mitogen-Activated Protein Kinase 7 (EC 2.7.11.24)
    Language English
    Publishing date 2019-03-21
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms20061426
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Targeting the Oncoprotein Smoothened by Small Molecules: Focus on Novel Acylguanidine Derivatives as Potent Smoothened Inhibitors.

    Pietrobono, Silvia / Stecca, Barbara

    Cells

    2018  Volume 7, Issue 12

    Abstract: Hedgehog-GLI (HH) signaling was originally identified as a critical morphogenetic pathway in embryonic development. Since its discovery, a multitude of studies have reported that HH signaling also plays key roles in a variety of cancer types and in ... ...

    Abstract Hedgehog-GLI (HH) signaling was originally identified as a critical morphogenetic pathway in embryonic development. Since its discovery, a multitude of studies have reported that HH signaling also plays key roles in a variety of cancer types and in maintaining tumor-initiating cells. Smoothened (SMO) is the main transducer of HH signaling, and in the last few years, it has emerged as a promising therapeutic target for anticancer therapy. Although vismodegib and sonidegib have demonstrated effectiveness for the treatment of basal cell carcinoma (BCC), their clinical use has been hampered by severe side effects, low selectivity against cancer stem cells, and the onset of mutation-driven drug resistance. Moreover, SMO antagonists are not effective in cancers where HH activation is due to mutations of pathway components downstream of SMO, or in the case of noncanonical, SMO-independent activation of the GLI transcription factors, the final mediators of HH signaling. Here, we review the current and rapidly expanding field of SMO small-molecule inhibitors in experimental and clinical settings, focusing on a class of acylguanidine derivatives. We also discuss various aspects of SMO, including mechanisms of resistance to SMO antagonists.
    Language English
    Publishing date 2018-12-14
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2661518-6
    ISSN 2073-4409
    ISSN 2073-4409
    DOI 10.3390/cells7120272
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: The Role of the Hedgehog Pathway in Cholangiocarcinoma.

    Anichini, Giulia / Carrassa, Laura / Stecca, Barbara / Marra, Fabio / Raggi, Chiara

    Cancers

    2021  Volume 13, Issue 19

    Abstract: Cholangiocarcinoma (CCA) is a poorly treatable type of cancer and, along with hepatocellular carcinoma (HCC), is the predominant type of primitive liver cancer in adults. The lack of understanding of CCA biology has slowed down the identification of ... ...

    Abstract Cholangiocarcinoma (CCA) is a poorly treatable type of cancer and, along with hepatocellular carcinoma (HCC), is the predominant type of primitive liver cancer in adults. The lack of understanding of CCA biology has slowed down the identification of novel targets and the development of effective treatments. While tumors share some general characteristics, detailed knowledge of specific features is essential for the development of effectively tailored therapeutic approaches. The Hedgehog (HH) signaling cascade regulates stemness biology, embryonal development, tissue homeostasis, and cell proliferation and differentiation. Its aberrant activation has been associated with a variety of solid and hematological human malignancies. Several HH-inhibiting compounds have been indeed developed as potential anticancer agents in different types of tumors, with Smoothened and GLI inhibitors showing the most promising results. Beside its well-established function in other tumors, findings regarding the HH signaling in CCA are still controversial. Here we will give an overview of the most important clinical and molecular features of cholangiocarcinoma, and we will discuss the available evidence of the crosstalk between the HH signaling pathway and the cholangiocarcinoma cell biology.
    Language English
    Publishing date 2021-09-24
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2527080-1
    ISSN 2072-6694
    ISSN 2072-6694
    DOI 10.3390/cancers13194774
    Database MEDical Literature Analysis and Retrieval System OnLINE

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