Andrzej Deptała

Prof. Dr. Andrzej Deptała

Department of Cancer Prevention, Medical University of Warsaw, Warsaw, Poland
orcid

Research Focus & Metrics

Academic Career Length

29Years (1998-Present)

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

Representative Publications

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1 August 2014 in The Lancet Oncology
Verified
Journal Article
Closed access
TITimothy Iveson
Timothy Iveson
RDRoss C Donehower
Ross C Donehower
IDIrina Davidenko
Irina Davidenko
STSergey Tjulandin
Sergey Tjulandin
ADAndrzej Deptała
Andrzej Deptała
ELElwyn Loh
Elwyn Loh

15 July 2023 in Cancers
Verified
Journal Article
Open access
PDF file
OPOlga Partyka
Olga Partyka
MPMonika Pajewska
Monika Pajewska
DKDaria Kwaśniewska
Daria Kwaśniewska
ACAleksandra Czerw
Aleksandra Czerw
ADAndrzej Deptała
Andrzej Deptała
Remigiusz KozlowskiRemigiusz Kozlowski
Remigiusz Kozlowski
Pancreatic cancer is the seventh most common cause of death in the group of oncological diseases. Due to the asymptomatic course, early diagnosis is difficult. Currently, early detection methods are only used in high-risk groups. A literature review based on the available results of observational studies on patients with pancreatic cancer and people from high-risk groups was used to summarize the knowledge on risk factors. The GLOBOCAN 2020 data were used to assess the epidemiological situation in Europe. A summary of screening recommendations was prepared based on the available documents from medical organizations and associations. Pancreatic cancer risk factors are divided into two main groups: non-modifiable factors, e.g., hereditary factors and age, which increase the risk of developing this disease, and modifiable factors—BMI, smoking, and alcohol consumption. Hereditary factors account for 10% of pancreatic cancer cases. The highly specialized methods of early detection, (MRI, CT, or EUS) are used for screening high-risk populations. Of all the imaging methods, EUS is considered the most sensitive for pancreatic cancer and allows an accurate assessment of the size of even small lesions (<30 mm) and the extent of tumour infiltration into blood vessels. The available studies vary on the level of sensitivity and specificity of these methods for the diagnosis of pancreatic cancer. EUS, MRI, and CT are also expensive procedures and in some patients can be invasive, which is one of the arguments against the introduction of population screening programs based on imaging methods. Therefore, it is important to look for viable solutions that would improve early detection. This is important from the point of view of healthcare systems in Europe, where almost 29% of all global pancreatic cancer cases are reported.

1 March 2000 in The American Journal of Pathology
Verified
Journal Article
Closed access
JKJan Kajstura
Jan Kajstura
BPBarbara Pertoldi
Barbara Pertoldi
ALAnnarosa Leri
Annarosa Leri
CBCarlo-Alberto Beltrami
Carlo-Alberto Beltrami
ADAndrzej Deptała
Andrzej Deptała
PAPiero Anversa
Piero Anversa

12 June 2012 in Cancer
Verified
Journal Article
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BRBrian I. Rini
Brian I. Rini
CSCezary Szczylik
Cezary Szczylik
NTNizar M. Tannir
Nizar M. Tannir
PKPiotr Koralewski
Piotr Koralewski
PTPiotr Tomczak
Piotr Tomczak
BEBernard Escudier
Bernard Escudier
BACKGROUND: This study evaluated the tolerability and antitumor activity of AMG 386, a peptibody (a peptide Fc fusion) that neutralizes the interaction of angiopoietin‐1 and angiopoietin‐2 with Tie2 (tyrosine kinase with immunoglobulin‐like and EGF‐like domains 2), plus sorafenib in patients with clear cell metastatic renal cell carcinoma (mRCC) in a randomized controlled study.METHODS: Previously untreated patients with mRCC were randomized 1:1:1 to receive sorafenib 400 mg orally twice daily plus intravenous AMG 386 at 10 mg/kg (arm A) or 3 mg/kg (arm B) or placebo (arm C) once weekly (qw). Patients in arm C could receive open‐label AMG 386 at 10 mg/kg qw plus sorafenib following disease progression. The primary endpoint was progression‐free survival (PFS).RESULTS: A total of 152 patients were randomized. Median PFS was 9.0, 8.5, and 9.0 months in arms A, B, and C, respectively (hazard ratio for arms A and B vs arm C, 0.88; 95% confidence interval [CI], 0.60‐1.30; P = .523). The objective response rate (95% CI) for arms A, B, and C, respectively, was 38% (25%‐53%), 37% (24%‐52%), and 25% (14%‐40%). Among 30 patients in arm C who had disease progression and subsequently received open‐label AMG 386 at 10 mg/kg qw, the objective response rate was 3% (95% CI, 0%‐17%). Frequently occurring adverse events (AEs) included diarrhea (arms A/B/C, 70%/67%/56%), palmar‐plantar erythrodysesthesia syndrome (52%/47%/54%), alopecia (50%/45%/50%), and hypertension (42%/49%/46%). Fifteen patients had grade 4 AEs (arms A/B/C, n = 3/7/5); 4 had fatal AEs (n = 2/1/1), with 1 (abdominal pain, arm B) considered possibly related to AMG 386.CONCLUSIONS: In patients with mRCC, AMG 386 plus sorafenib was tolerable but did not significantly improve PFS compared with placebo plus sorafenib. Cancer 2012. © 2012 American Cancer Society.

1 October 2001 in Cell Proliferation
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Journal Article
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SCS. Chen
S. Chen
QRQ. Ruan
Q. Ruan
EBE. Bedner
E. Bedner
ADAndrzej Deptała
Andrzej Deptała
XWX. Wang
X. Wang
ZDZ. Darzynkiewicz
Z. Darzynkiewicz
: Recent studies on the Chinese herbal medicine PC SPES showed biological activities against prostate cancer in vitro, in vivo and in patients with advanced stages of the disease. In investigating its mode of action, we have isolated a few of the active compounds. Among them, baicalin was the most abundant (about 6%) in the ethanol extract of PC SPES, as determined by HPLC. Baicalin is known to be converted in vivo to baicalein by the cleavage of the glycoside moiety. Therefore, it is useful to compare their activities in vitro. The effects of baicalin and baicalein were studied in androgen‐positive and ‐negative human prostate cancer lines LNCaP and JCA‐1, respectively. Inhibition of cell growth by 50% (ED50) in LNCaP cells was seen at concentrations of 60.8 ± 3.2 and 29.8 ± 2.2 µm baicalin and baicalein, respectively. More potent growth inhibitory effects were observed in androgen‐negative JCA‐1 cells, for which the ED50 values for baicalin and baicalein were 46.8 ± 0.7 and 17.7 ± 3.4, respectively. Thus, it appears that cell growth inhibition by these flavonoids is independent of androgen receptor status. Both agents (1) caused an apparent accumulation of cells in G1 at the ED50 concentration, (2) induced apoptosis at higher concentrations, and (3) decreased expression of the androgen receptor in LNCaP cells.

10 July 2001 in Proceedings of the National Academy of Sciences
Verified
Journal Article
Closed access
ALAnnarosa Leri
Annarosa Leri
LBLaura Barlucchi
Laura Barlucchi
FLFederica Limana
Federica Limana
ADAndrzej Deptała
Andrzej Deptała
ZDZbigniew Darzynkiewicz
Zbigniew Darzynkiewicz
PAPiero Anversa
Piero Anversa
The role and even the existence of myocyte proliferation in the adult heart remain controversial. Documentation of cell cycle regulators, DNA synthesis, and mitotic images has not modified the view that myocardial growth can only occur from hypertrophy of an irreplaceable population of differentiated myocytes. To improve understanding the biology of the heart and obtain supportive evidence of myocyte replication, three indices of cell proliferation were analyzed in dogs affected by a progressive deterioration of cardiac performance and dilated cardiomyopathy. The magnitude of cycling myocytes was evaluated by the expression of Ki67 in nuclei. Ki67 labeling of left ventricular myocytes increased 5-fold, 12-fold, and 17-fold with the onset of moderate and severe ventricular dysfunction and overt failure, respectively. Telomerase activity in vivo is present only in multiplying cells; this enzyme increased 2.4-fold and 3.1-fold in the decompensated heart, preserving telomeric length in myocytes. The contribution of cycling myocytes to telomerase activity was determined by the colocalization of Ki67 and telomerase in myocyte nuclei. More than 50% of Ki67-positive cells expressed telomerase in the overloaded myocardium, suggesting that these myocytes were the morphological counterpart of the biochemical assay of enzyme activity. Moreover, we report that 20–30% of canine myocytes were telomerase competent, and this value was not changed by cardiac failure. In conclusion, the enhanced expression of Ki67 and telomerase activity, in combination with Ki67-telomerase labeling of myocyte nuclei, support the notion that myocyte proliferation contributes to cardiac hypertrophy of the diseased heart.