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A. Gritzapis · SciRah

Researcher profile · Semantic Scholar

A. Gritzapis

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A. Gritzapis — researcher profile on SciRah

h-index: 27
Works: 89
Citations: 3,567

Most-cited papers

Interactions Between Human Mesenchymal Stem Cells and Natural Killer Cells
P. Sotiropoulou, S. Perez, A. Gritzapis, C. N. Baxevanis +1 more
2006Stem Cells962 citations Open access
Semantic Scholar
An improved fluorescence assay for the determination of lymphocyte-mediated cytotoxicity using flow cytometry.
Nikolaos G. Papadopoulos, George V. Z. Dedoussis, G. Spanakos, A. Gritzapis +2 more
1994JIM - Journal of Immunological Methods291 citations
Semantic Scholar
Cytokine serum levels, autologous mixed lymphocyte reaction and surface marker analysis in never medicated and chronically medicated schizophrenic patients.
S. Theodoropoulou, G. Spanakos, C. Baxevanis, M. Economou +3 more
2001Schizophrenia Research186 citations
Semantic Scholar
Tumor-Specific CD4+ T Lymphocytes from Cancer Patients Are Required for Optimal Induction of Cytotoxic T Cells Against the Autologous Tumor
C. Baxevanis, I. F. Voutsas, O. Tsitsilonis, A. Gritzapis +2 more
2000Journal of Immunology178 citations Open access
Semantic Scholar
Th1 and Th2 Serum Cytokine Profiles Characterize Patients with Hashimoto’s Thyroiditis (Th1) and Graves’ Disease (Th2)
C. Phenekos, A. Vryonidou, A. Gritzapis, C. N. Baxevanis +2 more
2004Neuroimmunomodulation143 citations
Semantic Scholar
Natural killer lymphocytes: biology, development, and function
M. Papamichail, S. Perez, A. Gritzapis, C. Baxevanis
2004Cancer Immunology and Immunotherapy137 citations Open access
Semantic Scholar
Elevated prostaglandin E2 production by monocytes is responsible for the depressed levels of natural killer and lymphokine‐activated killer cell function in patients with breast cancer
C. N. Baxevanis, George J. Reclos, A. Gritzapis, George V. Z. Dedousis +2 more
1993Cancer124 citations Open access
Semantic Scholar
A new era in anticancer peptide vaccines
S. Perez, E. von Hofe, N. Kallinteris, A. Gritzapis +3 more
2010Cancer112 citations Open access
Semantic Scholar
Compromised anti‐tumor responses in tumor necrosis factor‐α knockout mice
C. N. Baxevanis, I. F. Voutsas, O. Tsitsilonis, M. Tsiatas +2 more
2000European Journal of Immunology83 citations Open access
Semantic Scholar
Immunogenic HER-2/neu peptides as tumor vaccines
C. Baxevanis, Nectaria N. Sotiriadou, A. Gritzapis, P. Sotiropoulou +3 more
2005Cancer Immunology and Immunotherapy81 citations Open access
Semantic Scholar
In Vivo Antitumor Activity of NKT Cells Activated by the Combination of IL-12 and IL-18 1
C. Baxevanis, A. Gritzapis, M. Papamichail
2003Journal of Immunology78 citations Open access
Semantic Scholar
CRD-BP/IMP1 Expression Characterizes Cord Blood CD34+ Stem Cells and Affects c-myc and IGF-II Expression in MCF-7 Cancer Cells*
P. Ioannidis, L. Mahaira, S. Perez, A. Gritzapis +5 more
2005Journal of Biological Chemistry73 citations Open access
Semantic Scholar
A novel myeloid-like NK cell progenitor in human umbilical cord blood.
S. Perez, P. Sotiropoulou, D. Gkika, L. Mahaira +6 more
2003Blood72 citations
Semantic Scholar
Peptide HER2(776–788) represents a naturally processed broad MHC class II-restricted T cell epitope
R. Sotiriadou, S. Perez, A. Gritzapis, P. Sotiropoulou +7 more
2001British Journal of Cancer66 citations Open access
Semantic Scholar
HER-2/neu as a target for cancer vaccines.
C. Baxevanis, I. F. Voutsas, A. Gritzapis, S. Perez +1 more
2010Immunotherapy56 citations
Semantic Scholar
Induction of potent CD4+ T cell‐mediated antitumor responses by a helper HER‐2/neu peptide linked to the Ii‐Key moiety of the invariant chain
I. F. Voutsas, A. Gritzapis, L. Mahaira, Maria Salagianni +3 more
2007International Journal of Cancer54 citations
Semantic Scholar
Vaccination with human HER-2/neu (435-443) CTL peptide induces effective antitumor immunity against HER-2/neu-expressing tumor cells in vivo.
A. Gritzapis, L. Mahaira, S. Perez, N. Cacoullos +2 more
2006Cancer Research50 citations
Semantic Scholar
HER-2/neu-derived peptide 884–899 is expressed by human breast, colorectal and pancreatic adenocarcinomas and is recognized by in-vitro-induced specific CD4+ T cell clones
S. Perez, P. Sotiropoulou, Nectaria N. Sotiriadou, A. Mamalaki +6 more
2001Cancer Immunology and Immunotherapy50 citations Open access
Semantic Scholar
Ii-Key/HER-2/neu(776-90) hybrid peptides induce more effective immunological responses over the native peptide in lymphocyte cultures from patients with HER-2/neu+ tumors
Nectaria N. Sotiriadou, N. Kallinteris, A. Gritzapis, I. F. Voutsas +6 more
2007Cancer Immunology and Immunotherapy49 citations
Semantic Scholar
A potential role for hydrocortisone in the positive regulation of IL-15-activated NK-cell proliferation and survival.
S. Perez, L. Mahaira, F. J. Demirtzoglou, P. Sotiropoulou +6 more
2005Blood48 citations Open access
Semantic Scholar
Large-scale expansion of CD3+CD56+ lymphocytes capable of lysing autologous tumor cells with cytokine-rich supernatants
A. Gritzapis, D. Dimitroulopoulos, E. Paraskevas, C. N. Baxevanis +1 more
2002Cancer Immunology and Immunotherapy47 citations
Semantic Scholar
Effect of IL-21 on NK cells derived from different umbilical cord blood populations.
S. Perez, L. Mahaira, P. Sotiropoulou, A. Gritzapis +8 more
2006International Immunology43 citations
Semantic Scholar
HER‐2/neu–derived peptide epitopes are also recognized by cytotoxic CD3+CD56+ (natural killer T) lymphocytes
C. N. Baxevanis, A. Gritzapis, O. Tsitsilonis, Haralabos L. Katsoulas +1 more
2002International Journal of Cancer41 citations Open access
Semantic Scholar
Identification of a Novel Immunogenic HLA-A*0201-Binding Epitope of HER-2/neu with Potent Antitumor Properties1
A. Gritzapis, I. F. Voutsas, E. Lekka, N. Tsavaris +5 more
2008Journal of Immunology31 citations Open access
Semantic Scholar
Quantitative Fluorescence Cytometric Measurement of Estrogen and Progesterone Receptors: Correlation with the Hormone Binding Assay
A. Gritzapis, C. Baxevanis, I. Missitzis, Efrosine S. Katsanou +3 more
2003Breast Cancer Research and Treatment30 citations
Semantic Scholar
Peptide vaccination breaks tolerance to HER-2/neu by generating vaccine-specific FasL(+) CD4(+) T cells: first evidence for intratumor apoptotic regulatory T cells.
A. Gritzapis, I. F. Voutsas, E. Lekka, M. Papamichail +1 more
2010Cancer Research29 citations
Semantic Scholar
Interleukin 1 beta synergises with interleukin 2 in the outgrowth of autologous tumour-reactive CD8+ effectors.
C. Baxevanis, George V. Z. Dedoussis, A. Gritzapis, G. P. Stathopoulos +1 more
1994British Journal of Cancer27 citations Open access
Semantic Scholar
Synergy between interleukin-2 and prothymosin α for the increased generation of cytotoxic T lymphocytes against autologous human carcinomas
I. F. Voutsas, C. Baxevanis, A. Gritzapis, I. Missitzis +5 more
2000Cancer Immunology and Immunotherapy22 citations
Semantic Scholar
Induction of tumor-specific T lymphocyte responses in vivo by prothymosin α
C. Baxevanis, A. Gritzapis, G. Spanakos, O. Tsitsilonis +1 more
1995Cancer Immunology and Immunotherapy20 citations Open access
Semantic Scholar
Impact of ADMA, endothelial progenitor cells and traditional cardiovascular risk factors on pulse wave velocity among prediabetic individuals
I. Protopsaltis, S. Foussas, Angeliki M. Angelidi, A. Gritzapis +7 more
2012Cardiovascular Diabetology18 citations Open access
Semantic Scholar
Intracellular detection of Bcl-2 and p53 proteins by flow cytometry: comparison of monoclonal antibodies and sample preparation protocols.
L. Zamai, B. Canonico, A. Gritzapis, F. Luchetti +6 more
2002Journal of Biological Regulators and Homeostatic Agents18 citations
Semantic Scholar
Increased generation of autologous tumor-reactive lymphocytes by anti-CD3 monoclonal antibody and prothymosin α
C. Baxevanis, G. Spanakos, I. F. Voutsas, A. Gritzapis +3 more
1999Cancer Immunology and Immunotherapy18 citations
Semantic Scholar
Combined treatment with Bevacizumab and standard chemotherapy restores abnormal immune parameters in advanced colorectal cancer patients
N. Tsavaris, I. F. Voutsas, C. Kosmas, A. Gritzapis +1 more
2012Investigational new drugs16 citations
Semantic Scholar
Generation of human tumor-specific CTLs in HLA-A2.1–transgenic mice using unfractionated peptides from eluates of human primary breast and ovarian tumors
A. Gritzapis, Nectaria N. Sotiriadou, M. Papamichail, C. Baxevanis
2004Cancer Immunology and Immunotherapy16 citations
Semantic Scholar
Monocyte disorders associated with T cell defects in patients with solid tumors.
E. Anastasopoulos, G. Reclos, C. N. Baxevanis, A. Gritzapis +6 more
1992Anticancer Research16 citations
Semantic Scholar
Ontak reduces the immunosuppressive tumor environment and enhances successful therapeutic vaccination in HER-2/neu-tolerant mice
A. Gritzapis, I. F. Voutsas, C. Baxevanis
2012Cancer Immunology and Immunotherapy15 citations Open access
Semantic Scholar
Mannose addition by yeast Pichia Pastoris on recombinant HER-2 protein inhibits recognition by the monoclonal antibody herceptin.
S. Vlahopoulos, A. Gritzapis, S. Perez, N. Cacoullos +2 more
2009Vaccine14 citations
Semantic Scholar
Redirecting mouse T hybridoma against human breast and ovarian carcinomas: in vivo activity against HER-2/neu expressing cancer cells
A. Gritzapis, A. Mamalaki, A. Kretsovali, J. Papamatheakis +4 more
2003British Journal of Cancer14 citations Open access
Semantic Scholar
Chemotherapy ± Cetuximab Modulates Peripheral Immune Responses in Metastatic Colorectal Cancer
I. Xynos, M. Karadima, I. F. Voutsas, S. Amptoulach +4 more
2013Oncology13 citations
Semantic Scholar
Comparison of immune parameters in patients with one or two primary malignant neoplasms.
C. N. Baxevanis, George J. Reclos, A. Gritzapis, George V. Z. Dedousis +5 more
1993Natural immunity13 citations
Semantic Scholar
Intracellular ESAT‐6: A new biomarker for Mycobacterium tuberculosis infection
N. Poulakis, A. Gritzapis, Maria Ploussi, Michail Leventopoulos +6 more
2016Cytometry. Part B, Clinical cytometry12 citations
Semantic Scholar
Gamma-irradiation induces HER-2/neu overexpression in breast cancer cell lines and sensitivity to treatment with trastuzumab
I. F. Voutsas, L. Mahaira, K. Fotopoulou, N. Kapranos +5 more
2013International Journal of Radiation Biology12 citations
Semantic Scholar
HER-2/neu (657-665) represents an immunogenic epitope of HER-2/neu oncoprotein with potent antitumor properties.
A. Gritzapis, A. Fridman, S. Perez, N. La Monica +3 more
2009Vaccine12 citations
Semantic Scholar
Pooled peptides from HER-2/neu-overexpressing primary ovarian tumours induce CTL with potent antitumour responses in vitro and in vivo
A. Gritzapis, S. Perez, C. Baxevanis, Michael Papamichail
2004British Journal of Cancer12 citations Open access
Semantic Scholar
Induction of lymphokine-activated killer activity in mice by prothymosin α
C. Baxevanis, A. Gritzapis, G. Dedoussis, N. Papadopoulos +2 more
1994Cancer Immunology and Immunotherapy12 citations Open access
Semantic Scholar
T-Cell Repertoire in Tumor Radiation: The Emerging Frontier as a Radiotherapy Biomarker
C. Baxevanis, A. Gritzapis, I. F. Voutsas, Panagiota Batsaki +4 more
2022Cancers10 citations Open access
Semantic Scholar
Endothelial progenitor cells as a cardiometabolic risk factor marker in prediabetes
Angeliki M. Angelidi, A. Melidonis, I. Protopsaltis, T. Sergentanis +6 more
2014HORMONES10 citations
Semantic Scholar
Amifostine enhances recovery and expansion of peripheral FAS/CD95+ T- and NK-cell subpopulations during radiotherapy of patients with head-neck cancer
G. Koukourakis, Constantinos N Baksevanis, H. Zambatis, A. Gritzapis +3 more
2009International Journal of Radiation Biology10 citations
Semantic Scholar
In vitro and in vivo antitumor activity of a mouse CTL hybridoma expressing chimeric receptors bearing the single chain Fv from HER-2/neu- specific antibody and the γ-chain from Fc(ε) RI
A. Mamalaki, A. Gritzapis, A. Kretsovali, Maria Belimezi +4 more
2003Cancer Immunology and Immunotherapy10 citations Open access
Semantic Scholar
Identification and characterization of a HER-2/neu epitope as a potential target for cancer immunotherapy
E. Lekka, A. Gritzapis, S. Perez, N. Tsavaris +4 more
2010Cancer Immunology and Immunotherapy9 citations Open access
Semantic Scholar

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M. Papamichail×33
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M. Papamichail — researcher profile on SciRah
C. Baxevanis×32
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C. Baxevanis — researcher profile on SciRah
S. Perez×21
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S. Perez — researcher profile on SciRah
I. F. Voutsas×14
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I. F. Voutsas — researcher profile on SciRah

C. N. Baxevanis

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C. N. Baxevanis — researcher profile on SciRah

P. Sotiropoulou×9

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P. Sotiropoulou — researcher profile on SciRah

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L. Mahaira — researcher profile on SciRah

I. Missitzis×6

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I. Missitzis — researcher profile on SciRah

Nectaria N. Sotiriadou×6

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Nectaria N. Sotiriadou — researcher profile on SciRah

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A. Mamalaki — researcher profile on SciRah

O. Tsitsilonis×5

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O. Tsitsilonis — researcher profile on SciRah

M. Papamichail×4

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M. Papamichail — researcher profile on SciRah