Sambor Sawicki

Dr. Sambor Sawicki

orcid

Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

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

Representative Publications

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2 April 2024 in Cell Communication and Signaling
Verified
Journal Article
Open access
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KBKatarzyna Bukato
Katarzyna Bukato
TKTomasz Kostrzewa
Tomasz Kostrzewa
AGAntonella Marino Gammazza
Antonella Marino Gammazza
MAGDALENA GORSKA-PONIKOWSKAMAGDALENA GORSKA-PONIKOWSKA
MAGDALENA GORSKA-PONIKOWSKA
SSSambor Sawicki
Sambor Sawicki
Background: Endometrial cancer is the most common gynecologic malignancy found in developed countries. Because therapy can be curative at first, early detection and diagnosis are crucial for successful treatment. Early diagnosis allows patients to avoid radical therapies and offers conservative management options. There are currently no proven biomarkers that predict the risk of disease occurrence, enable early identification or support prognostic evaluation. Consequently, there is increasing interest in discovering sensitive and specific biomarkers for the detection of endometrial cancer using noninvasive approaches. Content: Hormonal imbalance caused by unopposed estrogen affects the expression of genes involved in cell proliferation and apoptosis, which can lead to uncontrolled cell growth and carcinogenesis. In addition, due to their ability to cause oxidative stress, estradiol metabolites have both carcinogenic and anticarcinogenic properties. Catechol estrogens are converted to reactive quinones, resulting in oxidative DNA damage that can initiate the carcinogenic process. The molecular anticancer mechanisms are still not fully understood, but it has been established that some estradiol metabolites generate reactive oxygen species and reactive nitrogen species, resulting in nitro-oxidative stress that causes cancer cell cycle arrest or cell death. Therefore, identifying biomarkers that reflect this hormonal imbalance and the presence of endometrial cancer in minimally invasive or noninvasive samples such as blood or urine could significantly improve early detection and treatment outcomes.

Verified
Journal Article
Open access
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Paulina SzymczakPaulina Szymczak
Paulina Szymczak
MGMagdalena Emilia Grzybowska
Magdalena Emilia Grzybowska
SSSambor Sawicki
Sambor Sawicki
DWDariusz Grzegorz Wydra
Dariusz Grzegorz Wydra
The study aimed to examine the learning curve and perioperative complications for laparoscopic pectopexy (LP). A total of 60 women with stage II–IV apical prolapse who underwent LP were dichotomized into groups: LSH(+) with concomitant laparoscopic supracervical hysterectomy (LSH), LSH(−) after previous supracervical/total hysterectomy. Operative time, estimated blood loss and hospitalization length were evaluated with cumulative sum (CUSUM) analysis and the Kwiatkowski–Phillips–Schmidt–Shin (KPSS) test, separately for two surgeons (A and B). Intraoperative and perioperative complications according to the Clavien–Dindo (C–D) classification were analyzed. Mean operative time, change in hemoglobin level, and postoperative hospital stay were 143.5 ± 23.1 min—1.5 ± 0.5g/dL and 2.5 ± 0.9 days, respectively. LSH during pectopexy was associated with longer operative time (p = 0.01) but not with higher intraoperative bleeding or prolonged hospital stay. Severe complications rate was low (1.7%) with one bowel injury in LSH(−) (C–D grade IIIb). No C–D grade II, IV and V complications were found. Conversion to open pectopexy, return to the operating room or blood transfusion were not required. The KPSS test showed that a steady operative time for Surgeon A was achieved after 28 procedures. A proficiency for laparoscopic pectopexy based on CUSUM analysis was observed after 38–40 procedures.

1 July 2015 in International Journal of Gynecological Cancer
Verified
Journal Article
Closed access
SSSambor Sawicki
Sambor Sawicki
PLPiotr Lass
Piotr Lass
DWDariusz Wydra
Dariusz Wydra

15 April 2022 in Journal of Clinical Medicine
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Journal Article
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Paulina SzymczakPaulina Szymczak
Paulina Szymczak
MGMagdalena Emilia Grzybowska
Magdalena Emilia Grzybowska
SSSambor Sawicki
Sambor Sawicki
KFKonrad Futyma
Konrad Futyma
DWDariusz Grzegorz Wydra
Dariusz Grzegorz Wydra
The aim of this paper was to analyze perioperative and long-term outcomes in 114 women undergoing surgery for POP-Q ≥ 2 apical prolapse: sacrospinous ligament colpo/hysteropexy (SSLF/SSHP)—61; laparoscopic pectopexy (LP)—53. Validated questionnaires (PGI-I, ISI, #35 EPIQ, PFIQ-7, PFDI-20) were completed at baseline and follow-up. POP-Q stages II, III and IV were diagnosed in 1 (0.9%), 84 (73.7%) and 29 (25.4%) patients, respectively. Mean operative time and hospital stay were 151.8 ± 36.2 min/2.6 ± 1.1 days for LP and 69 ± 20.4 min (p < 0.001)/2.7 ± 1.0 days for SSLF. Severe intraoperative complications occurred in two (1.8%) patients. Mean follow-up was 26.9 ± 12 and 37.3 ± 17.5 months for LP and SSLF, respectively. At follow-up, significant improvement for all POP-Q points was observed in both groups (p < 0.001). Shortening of total vaginal length was found in both groups, but predominantly in SSLF patients (p = 0.01). The sensation of vaginal bulge (EPIQ) was reduced, and total PFDI-20 and PFIQ-7 scores improved (p < 0.04) in both groups. Subjective success was reported by 40 (75.5%) LP and 44 (72.1%) SSLF patients. ISI detected no deterioration in urinary incontinence. PGI-I, PFDI-20, #35 EPIQ, PFIQ-7 and ISI did not differ between the groups. In conclusion both, SSLF and LP for apical prolapse generate good anatomical and subjective outcomes, with protective effect on the anterior compartment observed for LP.

30 August 2020 in Applied Sciences
Verified
Journal Article
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MKMalgorzata Krawczyk
Malgorzata Krawczyk
APAgata Pospieszynska
Agata Pospieszynska
MSMalgorzata Styczewska
Malgorzata Styczewska
EBEwa Bien
Ewa Bien
SSSambor Sawicki
Sambor Sawicki
MAGDALENA GORSKA-PONIKOWSKAMAGDALENA GORSKA-PONIKOWSKA
MAGDALENA GORSKA-PONIKOWSKA
Exosomal heat shock proteins (Hsps) are involved in intercellular communication both in physiological and pathological conditions. They play a role in key processes of carcinogenesis including immune system regulation, cell differentiation, vascular homeostasis and metastasis formation. Thus, exosomal Hsps are emerging biomarkers of malignancies and possible therapeutic targets. Adolescents and young adults (AYAs) are patients aged 15–39 years. This age group, placed between pediatric and adult oncology, pose a particular challenge for cancer management. New biomarkers of cancer growth and progression as well as prognostic factors are desperately needed in AYAs. In this review, we attempted to summarize the current knowledge on the role of exosomal Hsps in selected solid tumors characteristic for the AYA population and/or associated with poor prognosis in this age group. These included malignant melanoma, brain tumors, and breast, colorectal, thyroid, hepatocellular, lung and gynecological tract carcinomas. The studies on exosomal Hsps in these tumors are limited; however; some have provided promising results. Although further research is needed, there is potential for future clinical applications of exosomal Hsps in AYA cancers, both as novel biomarkers of disease presence, progression or relapse, or as therapeutic targets or tools for drug delivery.