Georgian Halcu

Dr. Georgian Halcu

orcid

Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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5 July 2023 in Cells
Verified
Journal Article
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ADAdrian Vasile Dumitru
Adrian Vasile Dumitru
Dana Antonia TapoiDana Antonia Tapoi
Dana Antonia Tapoi
GHGeorgian Halcu
Georgian Halcu
OMOctavian Munteanu
Octavian Munteanu
DDDavid Ioan Dumitrascu
David Ioan Dumitrascu
AGANCUTA GHEORGHISAN
ANCUTA GHEORGHISAN
CD30, also known as TNFRSF8 (tumor necrosis factor receptor superfamily member 8), is a protein receptor that is heavily glycosylated inside the Golgi apparatus, as well as a tumor marker that is found on the surface of specific cells in the body, including certain immune cells and cancer ones. This review aims to shed light on the critical importance of CD30, from its emergence in the cell to its position in diagnosing various diseases, including Hodgkin lymphoma, where it is expressed on Hodgkin and Reed–Sternberg cells, as well as embryonal carcinoma, anaplastic large cell lymphoma (ALCL), and cutaneous T-cell lymphoma (CTCL). In addition to its role in positive diagnosis, targeting CD30 has been a promising approach treating CD30-positive lymphomas, and there is ongoing research into the potential use of CD30-targeted therapies for autoimmune disorders. We aim to elaborate on CD30’s roles as a tumor marker, supporting thus the hypothesis that this receptor might be the aim of cytostatic treatment.

29 June 2023 in Medicina
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Journal Article
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Horia-Dan LiscuHoria-Dan Liscu
Horia-Dan Liscu
BLBogdan-Radu Liscu
Bogdan-Radu Liscu
RMRuxandra Mitre
Ruxandra Mitre
AAAndreea Anghel
Andreea Anghel
Ionut-Lucian Antone-IordacheIonut-Lucian Antone-Iordache
Ionut-Lucian Antone-Iordache
GHGeorgian Halcu
Georgian Halcu
The management of locally advanced rectal cancer (LARC) suffered changes thanks to the development of improved surgical procedures, radiation delivery, and chemotherapy. Although treatment options improved individually, the optimal order is still debated. Neoadjuvant chemo-radiotherapy followed by total mesorectal excision (TME) has been the “golden standard” for locally advanced rectal cancer. There is no common ground in international guidelines on the indications of adjuvant chemotherapy (ADJCHT), with differences between the American, European, and Japanese guidelines. This paper studies the preferences of Romanian oncologists in prescribing ADJCHT. We conducted a single-institution, retrospective study of all nonmetastatic, ECOG 0-1 LARC patients staged II-III who underwent TME and were admitted to the Oncology or Radiotherapy Department of Colțea Clinical Hospital, Bucharest between January 2017 and March 2021. A total of 186 patients were included in the study. A positive correlation was found between ADJCHT and each of the following: (y)pT > 2, (y)pN > 0, and the presence of perineural invasion (PNI+). A strong positive correlation was found between ADJCHT and the presence of at least one risk factor: (y)pT > 2, (y)pN > 0, PNI+, lymphovascular invasion, positive margins, or tumor grade > 1. Tumor downstaging decreased the risk of metastases in the first 2 years and was associated with the use of neoadjuvant radiotherapy, while adding neoadjuvant chemotherapy increased the chance of nodal downstaging. ADJCHT practice for LARC in Romania follows either NCCN or ESMO guidelines, at the discretion of the oncologist, due to the lack of national guideline.

1 May 2025 in Journal of Medicine and Life
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Journal Article
Open access
GHGeorgian Halcu
Georgian Halcu
FMFilip Cristian Mureșan
Filip Cristian Mureșan
ANAndrei Niculae
Andrei Niculae
AEAnca Evsei-Seceleanu
Anca Evsei-Seceleanu
MLMihai-Emilian Lapadat
Mihai-Emilian Lapadat
MCMihail Ceausu
Mihail Ceausu
Diffuse large B-cell lymphoma (DLBCL) is the most common subtype of B-cell non-Hodgkin lymphoma (NHL) and is characterized by significant biological and

2 May 2025 in Medicina
Verified
Journal Article
Open access
GHGeorgian Halcu
Georgian Halcu
AEAnca Evsei
Anca Evsei
MCMihai Cerbu
Mihai Cerbu
MBMarina Alina Bara
Marina Alina Bara
ATAndrei Turbatu
Andrei Turbatu
MCMihail Constantin Ceaușu
Mihail Constantin Ceaușu
Diffuse large B-cell lymphoma (DLBCL), recognized as the most prevalent variant of adult non-Hodgkin lymphoma, presents considerable challenges in diagnosis owing to its diverse morphological features and frequent extranodal involvement, which may frequently mimic nonhematopoietic neoplasms. The 2022 WHO Classification of Lymphoid and Hematopoietic Tissues provides essential updates, highlighting the necessity of combining morphology, immunohistochemistry, cytogenetics, and molecular testing for precise subclassification. This review presents a practical method for differentiating DLBCL from other aggressive B-cell neoplasms, such as Burkitt lymphoma, B-lymphoblastic lymphoma, and mantle cell lymphoma. It highlights vital diagnostic tools, including CD45, B/T-cell markers, germinal center markers, and the Hans algorithm, as well as the role of FISH in identifying rearrangements of key genes MYC, BCL2, and BCL6, which are significant for recognizing double-hit and triple-hit lymphomas. Special focus is given to EBV-associated DLBCL and uncommon subtypes featuring plasmablastic or ALK-positive traits. This review aims to enhance diagnostic accuracy and ensure appropriate treatment strategies for patients with large B-cell lymphomas by emphasizing thorough morphological evaluation, specific adjunct testing, and adherence to the most recent classification standards.

22 May 2025 in Medicina
Verified
Journal Article
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GHGeorgian Halcu
Georgian Halcu
AEAnca Evsei
Anca Evsei
Dana Antonia TapoiDana Antonia Tapoi
Dana Antonia Tapoi
MCMihai Cerbu
Mihai Cerbu
CBCristian Tudor Barta
Cristian Tudor Barta
MCMihail Constantin Ceaușu
Mihail Constantin Ceaușu
Diffuse large B-cell lymphoma is a prevalent subtype of adult non-Hodgkin lymphoma; noted for its biological and clinical variability. Background and Objectives: This study seeks to assess the expression and prognostic implications of Ki-67, MYC, and BCL2 utilising immunohistochemistry on a cohort of Romanian patients diagnosed with DLBCL while also addressing the limitations imposed by the absence of fluorescence in situ hybridisation testing in resource-constrained settings. Materials and Methods: A single-centre, retrospective study involved 66 cases of formalin-fixed, paraffin-embedded tissue specimens obtained from patients with this lymphoma. Results: The median age at diagnosis was 61.81 years, with most individuals being 60 years or older; 59.1% of the patients were male. Our study identified that 65.2% of the cases belonged to the non-GCB subtype (ABC). MYC-positive expression was observed in 5 out of 66 cases (7.6%), and BCL2 protein expression exhibited a trend toward statistical significance, indicating a lower overall survival for BCL-2-positive patients. The expression of Ki-67 demonstrated a significant correlation with variations in overall survival (OS) (p < 0.001). Patients with low Ki-67 expression had an average survival duration of 76.39 months, contrasting with individuals exhibiting high Ki-67 expression, with a mean survival of 38.98 months. In conclusion, MYC, BCL2, and Ki-67 may be valuable prognostic indicator biomarkers. Conclusions: The prognostic significance of each biomarker varies based on the established cut-off point value. Future research should examine the relationship between protein biomarkers, morphological characteristics, and clinical outcomes in Romanian patients diagnosed with DLBCL, aiming to elucidate clinical ramifications and foster effective management.

3 December 2024 in Hematology Reports
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Journal Article
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CNCristina Negotei
Cristina Negotei
IMIuliana Mitu
Iuliana Mitu
SASilvana Angelescu
Silvana Angelescu
FGFlorentina Gradinaru
Florentina Gradinaru
CMCristina Mambet
Cristina Mambet
ACAndrei Colita
Andrei Colita
Introduction: Acute myeloid leukemia (AML) is a form of cancer originating from precursor cells within the bone marrow. Elderly patients with acute leukemia require a personalized approach, considering age, performance status, and comorbidities, to determine suitability for intensive treatment. Methods: We studied the results of intense chemotherapy in 46 elderly, fit individuals with AML at a cancer center in Romania from January 2017 to December 2023. Results: The study involved a cohort of 46 patients, including 22 men and 24 women. The research indicated that 89.1% of the patients were diagnosed with de novo acute leukemia. Most patients had an ECOG score of 0–1, with one patient scoring ≥2. HCT-CI > 4 was found in 21 patients (45.7%), while CCI > 4 was present in 38 patients (82.6%). After the induction phase, 25 patients (54.3%) achieved complete remission (CR); the relapse rate was 56.8%. Upon completion of the study, nine individuals (19.6%) were still alive. The overall survival duration ranged from 0 to 33 months, with a median survival time of 8 months (CI 5.0–11.0). Conclusions: When considering treatment options for elderly patients, the Eastern Cooperative Oncology Group (ECOG) Performance Status, as well as comorbidity indices such as the Hematopoietic Cell Transplantation-Specific Comorbidity Index (HCT-CI) and the Charlson Comorbidity Index (CCI), have shown promising results in the literature, indicating their relevance in the decision-making process.