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  1. Article: Editorial: Cancer stem cells as attractive targets for breast cancer therapy.

    Ibrahim, Sherif Abdelaziz / Yip, George W / Götte, Martin

    Frontiers in oncology

    2023  Volume 13, Page(s) 1151742

    Language English
    Publishing date 2023-03-03
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2649216-7
    ISSN 2234-943X
    ISSN 2234-943X
    DOI 10.3389/fonc.2023.1151742
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Revisiting the Syndecans: Master Signaling Regulators with Prognostic and Targetable Therapeutic Values in Breast Carcinoma.

    Motta, Juliana Maria / Hassan, Hebatallah / Ibrahim, Sherif Abdelaziz

    Cancers

    2023  Volume 15, Issue 6

    Abstract: Syndecans (SDC1 to 4), a family of cell surface heparan sulfate proteoglycans, are frequently expressed in mammalian tissues. SDCs are aberrantly expressed either on tumor or stromal cells, influencing cancer initiation and progression through their ... ...

    Abstract Syndecans (SDC1 to 4), a family of cell surface heparan sulfate proteoglycans, are frequently expressed in mammalian tissues. SDCs are aberrantly expressed either on tumor or stromal cells, influencing cancer initiation and progression through their pleiotropic role in different signaling pathways relevant to proliferation, cell-matrix adhesion, migration, invasion, metastasis, cancer stemness, and angiogenesis. In this review, we discuss the key roles of SDCs in the pathogenesis of breast cancer, the most common malignancy in females worldwide, focusing on the prognostic significance and molecular regulators of SDC expression and localization in either breast tumor tissue or its microenvironmental cells and the SDC-dependent epithelial-mesenchymal transition program. This review also highlights the molecular mechanisms underlying the roles of SDCs in regulating breast cancer cell behavior via modulation of nuclear hormone receptor signaling, microRNA expression, and exosome biogenesis and functions, as well as summarizing the potential of SDCs as promising candidate targets for therapeutic strategies against breast cancer.
    Language English
    Publishing date 2023-03-16
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2527080-1
    ISSN 2072-6694
    ISSN 2072-6694
    DOI 10.3390/cancers15061794
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  3. Article ; Online: Allolobophora caliginosa coelomic fluid and extract alleviate glucocorticoid-induced osteoporosis in mice by suppressing oxidative stress and regulating osteoblastic/osteoclastic-related markers.

    Abdelfattah, Marwa Ahmed / Mohamed, Ayman Saber / Ibrahim, Sherif Abdelaziz / Fahmy, Sohair R

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 2090

    Abstract: Allolobophora calignosa (Ac) is a folk medicine for millennia, as it possesses many biological activities. This study aimed to investigate the chemo-preventive activity of A.calignosa coelomic fluid (AcCF) and A.calignosa extract (AcE) on glucocorticoid- ... ...

    Abstract Allolobophora calignosa (Ac) is a folk medicine for millennia, as it possesses many biological activities. This study aimed to investigate the chemo-preventive activity of A.calignosa coelomic fluid (AcCF) and A.calignosa extract (AcE) on glucocorticoid-induced osteoporosis (GIOP) in mice. Characterization and in vitro biological activity of AcE and AcCF has been assessed. Male CD-1 mice were subcutaneously received dexamethasone (DEX) (1 mg/kg, 5 times/week) and concurrently intraperitoneally treated with either AcCF (20 mg/kg) or AcE (45 mg/kg) every other day for 28 days. Serum and bone homogenates were subjected for qPCR and biochemical analysis. AcE and AcCF treatment significantly increased bone mineral density (BMD), bone mineral content (BMC), calcium (Ca), phosphorus (P), and calcitonin levels, whereas activity of serum alkaline phosphatase (ALP), bone alkaline phosphatase (BALP), serum acidic phosphatase (ACP), bone acidic phosphatase (BACP) and parathyroid hormone (PTH) levels were significantly reduced compare with untreated GIOP mice. Treatment with AcE and AcCF modulates oxidative stress and downregulated Rank and Mmp9 expression, as well as increased glycosaminoglycan content in the organic bone matrix, resulting in osteoclastogenesis inhibition. Overall, AcCF and AcE show a chemo-preventive activity against GIOP by inhibiting oxidative stress and regulating expression and/or activity of osteoblast/osteoclast-related markers.
    MeSH term(s) Mice ; Male ; Animals ; Glucocorticoids/pharmacology ; Osteoclasts/metabolism ; Alkaline Phosphatase/metabolism ; Osteoporosis/chemically induced ; Osteoporosis/drug therapy ; Osteoporosis/metabolism ; Bone Density ; Osteoblasts/metabolism ; Parathyroid Hormone/metabolism ; Oxidative Stress
    Chemical Substances Glucocorticoids ; Alkaline Phosphatase (EC 3.1.3.1) ; Parathyroid Hormone
    Language English
    Publishing date 2023-02-06
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-29070-5
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  4. Article ; Online: Foliar Spraying of Nano-Silicate and Nano-Zinc on Wheat (Triticum aestivum L.) Under Salt Stress Conditions Enhances Productivity and Reduces the Optimal Nitrogen Fertilizer Rate

    Ali, Ali M. / Ibrahim, Sherif M. / Omer, Amal M.

    Communications in Soil Science and Plant Analysis. 2023 Oct. 28, v. 54, no. 19 p.2731-2744

    2023  

    Abstract: Salinity stress poses a significant threat to agriculture, as it directly impacts crop growth and yield. The current study aimed at examining the role of foliar nano-silicate (nSiO₂) and nano-zinc (nZnO) applications in increasing wheat productivity and ... ...

    Abstract Salinity stress poses a significant threat to agriculture, as it directly impacts crop growth and yield. The current study aimed at examining the role of foliar nano-silicate (nSiO₂) and nano-zinc (nZnO) applications in increasing wheat productivity and nitrogen (N) use efficiency under salt stress conditions. A two-season field experiment was carried out on sandy soils irrigated with water from high-saline wells (4352 and 7040 mg L⁻¹). The study was conducted in a split-plot design, with main plots assigned to three treatments of foliar application of nSiO₂, nZnO, and control (nZero), and sub-plots assigned to six N fertilizer rates (0–300 kg N ha⁻¹). The use of nSiO₂ and nZnO increased wheat grain yield by 67 and 48% on average over nZero, respectively. When average wheat grain yields were plotted against increasing N fertilizer rates, a quadratic response curve was observed. Derivative solutions of the quadratic functions indicated that grain yield plateaued at 4641, 4560, and 3182 kg ha⁻¹ for nSiO₂, nZnO, and nZero treatments, respectively. The optimal N fertilizer rates for these yield levels were calculated to be 290, 353, and 386 kg N ha⁻¹. When the net returns to N fertilizer and nano-material use were considered, nSiO₂ had the highest net returns and the lowest optimal N fertilizer rate (229 kg N ha⁻¹), followed by nZnO (272 kg N ha⁻¹). The findings of the field experiment demonstrated that foliar spraying wheat with nSiO₂ and nZnO under salt stress conditions enhances productivity as well as responsiveness to N fertilizer.
    Keywords Triticum aestivum ; experimental design ; fertilizer rates ; field experimentation ; foliar application ; grain yield ; nanomaterials ; nitrogen ; nitrogen fertilizers ; plant analysis ; salt stress ; wheat ; N recovery efficiency ; nano-materials
    Language English
    Dates of publication 2023-1028
    Size p. 2731-2744.
    Publishing place Taylor & Francis
    Document type Article ; Online
    ZDB-ID 419718-5
    ISSN 1532-2416 ; 0010-3624
    ISSN (online) 1532-2416
    ISSN 0010-3624
    DOI 10.1080/00103624.2023.2240817
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  5. Article ; Online: Inversion radiography for imperforate anus: Recalling the anatomical concept.

    AbouZeid, Amr Abdelhamid / Ibrahim, Sherif Elhussiny / Hamad, Mostafa Mahmoud

    Journal of pediatric surgery

    2022  Volume 57, Issue 7, Page(s) 1446–1447

    MeSH term(s) Anal Canal/diagnostic imaging ; Anus, Imperforate/diagnostic imaging ; Anus, Imperforate/surgery ; Humans ; Radiography ; Rectal Fistula/diagnostic imaging ; Urethral Diseases/diagnostic imaging ; Urinary Fistula/diagnostic imaging
    Language English
    Publishing date 2022-01-23
    Publishing country United States
    Document type Letter
    ZDB-ID 80165-3
    ISSN 1531-5037 ; 0022-3468
    ISSN (online) 1531-5037
    ISSN 0022-3468
    DOI 10.1016/j.jpedsurg.2022.01.015
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  6. Article ; Online: Compartmental Syndecan-1 (CD138) expression as a novel prognostic marker in triple-negative metaplastic breast cancer.

    Ismail, Yahia / Zakaria, Al-Shimaa / Allam, Rasha / Götte, Martin / Ibrahim, Sherif Abdelaziz / Hassan, Hebatallah

    Pathology, research and practice

    2023  Volume 253, Page(s) 154994

    Abstract: Background: Metaplastic breast cancer (MpBC) is rare, aggressive, and mostly triple-negative (TN) subtype of BC. We aimed to investigate the potential prognostic significance of Syndecan-1 (SDC1/CD138) expression in this unique tumor.: Methods: ... ...

    Abstract Background: Metaplastic breast cancer (MpBC) is rare, aggressive, and mostly triple-negative (TN) subtype of BC. We aimed to investigate the potential prognostic significance of Syndecan-1 (SDC1/CD138) expression in this unique tumor.
    Methods: Archived charts of 50 TNBC patients [21 MpBC and 29 invasive ductal carcinoma (IDC)] were retrospectively evaluated. Corresponding paraffin blocks were used for immunohistochemical (IHC) staining of SDC1. Compartmental (epithelial membranous, stromal, and cytoplasmic) staining scores were expressed in quartiles (Q) and correlated with disease-free survival (DFS) and overall survival (OS).
    Results: The median follow-up period was 54.6 months (range: 2.2-112.7). MpBC patients showed significantly worse DFS and OS than IDC (p = 0.007 and 0.004, respectively). MpBC demonstrated significantly higher Q4 stromal and membranous SDC1 compared to IDC (p = 0.016 and 0.021, respectively), whereas IDC exhibited significantly higher cytoplasmic Q4 SDC1 than MpBC (p = 0.015). Stromal Q4 SDC1 expression was found to be an independent factor associated with MpBC relative to IDC (OR: 6.7, 95% CI: 1.24-36.90; p = 0.028). Stromal Q4 SDC1 expression was also an independent prognostic parameter for worse DFS and OS compared to Q1-3 in the whole cohort (HR: 4.2, 95% CI: 1.6-10.5; p = 0.003 and HR: 5.8; 95% CI: 2.2-15.3; p < 0.001, respectively). In MpBC, cytoplasmic Q1-3 SDC1 expression was an independent prognostic indicator for worse OS compared with their IDC counterparts (HR: 2.837, 95% CI: 1.048-7.682; p = 0.04).
    Conclusion: This study suggests, for the first time, that differential expression and localization of SDC1 may contribute to the pathogenesis and prognosis of TN-MpBC. Therefore, targeting SDC1 (CD138) could emerge as a novel therapeutic approach for this devastating disease.
    MeSH term(s) Humans ; Female ; Triple Negative Breast Neoplasms/pathology ; Breast Neoplasms/pathology ; Prognosis ; Retrospective Studies ; Syndecan-1/metabolism ; Disease-Free Survival ; Carcinoma, Ductal, Breast/pathology
    Chemical Substances Syndecan-1
    Language English
    Publishing date 2023-11-29
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 391889-0
    ISSN 1618-0631 ; 0344-0338
    ISSN (online) 1618-0631
    ISSN 0344-0338
    DOI 10.1016/j.prp.2023.154994
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  7. Article ; Online: A nano-Liposomal formulation potentiates antioxidant, anti-inflammatory, and fibrinolytic activities of Allolobophora caliginosa coelomic fluid: formulation and characterization.

    Farouk, Asmaa E / Fahmy, Sohair R / Soliman, Amel M / Ibrahim, Sherif Abdelaziz / Sadek, Shimaa A

    BMC biotechnology

    2023  Volume 23, Issue 1, Page(s) 28

    Abstract: Background: Coelomic fluid, a pharmacologically active compound in earthworms, exhibits a range of biological activities, including antioxidant, anti-inflammatory, and anticancer. However, the biological activities exerted by the coelomic fluid can be ... ...

    Abstract Background: Coelomic fluid, a pharmacologically active compound in earthworms, exhibits a range of biological activities, including antioxidant, anti-inflammatory, and anticancer. However, the biological activities exerted by the coelomic fluid can be restrained by its low bioavailability and stability. Liposomes are progressively utilized as an entrapment system for natural bioactive compounds with poor bioavailability and stability, which could be appropriate for coelomic fluid. Thus, the present study was designed to fabricate, characterize, and evaluate the stability of liposomal formulation for Allolobophora caliginosa coelomic fluid (ACCF) as a natural antioxidant compound.
    Methods: The ACCF-liposomes were developed with a subsequent characterization of their physicochemical attributes. The physical stability, ACCF release behavior, and gastrointestinal stability were evaluated in vitro. The biological activities of ACCF and its liposomal formulation were also determined.
    Results: The liposomal formulation of ACCF had a steady characteristic absorption band at 201 nm and a transmittance of 99.20 ± 0.10%. Its average hydrodynamic particle size was 98 nm, with a PDI of 0.29 ± 0.04 and a negative zeta potential (-38.66 ± 0.33mV). TEM further confirmed the formation of vesicular, spherical nano-liposomes with unilamellar configuration. Additionally, a remarkable entrapment efficiency percent (77.58 ± 0.82%) with a permeability rate equal to 3.20 ± 0.31% and a high retention rate (54.16 ± 2.20%) for ACCF-liposomes were observed. The Fourier transform infrared spectroscopy (FTIR) result demonstrated that ACCF successfully entrapped inside liposomes. The ACCF-liposomes exhibited a slow and controlled ACCF release in vitro. Regarding stability studies, the liposomal formulation enhanced the stability of ACCF during storage and at different pH. Furthermore, ACCF-liposomes are highly stable in intestinal digestion conditions comparable to gastric digestion. The current study disclosed that liposomal formulation potentiates the biological activities of ACCF, especially antioxidant, anti-inflammatory, and thrombolytic activities.
    Conclusion: These promising results offer a novel approach to increasing the bioaccessibility of ACCF, which may be crucial for the development of pharmaceuticals and nutraceutical-enriched functional foods.
    MeSH term(s) Animals ; Liposomes/chemistry ; Antioxidants/pharmacology ; Oligochaeta ; Anti-Inflammatory Agents/pharmacology ; Dietary Supplements ; Particle Size
    Chemical Substances Liposomes ; Antioxidants ; Anti-Inflammatory Agents
    Language English
    Publishing date 2023-08-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 2052746-9
    ISSN 1472-6750 ; 1472-6750
    ISSN (online) 1472-6750
    ISSN 1472-6750
    DOI 10.1186/s12896-023-00795-5
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  8. Article: Establishment of Soil Management Zones Using Multivariate Analysis and GIS

    Ali, Ali M / Ibrahim, Sherif M

    Communications in soil science and plant analysis. 2020 Oct. 27, v. 51, no. 19

    2020  

    Abstract: Delineation of soil management zones (MZ) that can define subfields with homogenous soil properties provides a basis for successful site-specific management. This study was conducted in order to create MZ for a field of 460 ha in Egypt using multivariate ...

    Abstract Delineation of soil management zones (MZ) that can define subfields with homogenous soil properties provides a basis for successful site-specific management. This study was conducted in order to create MZ for a field of 460 ha in Egypt using multivariate analysis and geographic information system (GIS). Soil samples were collected in a grid pattern from 104 topsoil (0–30 cm) locations within the field. Substantial variation was observed in shale depth (known locally as Tafla), electrical conductivity (EC), pH, CaCO₃, available phosphorus (P), potassium, iron (Fe), manganese, zinc, and copper. Principal component analysis was performed to aggregate and summarize the variability of the dataset. The analysis showed that shale depth, EC, pH, available P, and Fe are the parameters representing the overall variability. Accordingly, k-means clustering analysis was performed on the standardized data of these parameters, and three clusters were formed. These clusters were used for creating MZ with heterogeneity in overall soil properties. Zone #3 had favorable parameters led by deep shale depth (112.5 cm ±3.7) and EC (11.99 dS m⁻¹ ± 0.47), whereas zone #1 was the worst with shale depth of 60.7 cm ±7.98 and EC of 29.76 dS m⁻¹ ± 2.66. Zone #2 had intermediate conditions with shale depth of 100 cm ±10 and EC of 14.25 dS m⁻¹ ± 0.32. These subfields should be helpful for making successful agronomic decisions such as selecting crops, irrigation, and fertilization.
    Keywords copper ; data collection ; electrical conductivity ; geographic information systems ; iron ; irrigation ; manganese ; multivariate analysis ; pH ; phosphorus ; plant analysis ; potassium ; principal component analysis ; shale ; topsoil ; zinc ; Egypt
    Language English
    Dates of publication 2020-1027
    Size p. 2491-2500.
    Publishing place Taylor & Francis
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 419718-5
    ISSN 1532-2416 ; 0010-3624
    ISSN (online) 1532-2416
    ISSN 0010-3624
    DOI 10.1080/00103624.2020.1836207
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  9. Article ; Online: Cell Behavior of Non-Small Cell Lung Cancer Is at EGFR and MicroRNAs Hands.

    Hassanein, Sarah Sayed / Ibrahim, Sherif Abdelaziz / Abdel-Mawgood, Ahmed Lotfy

    International journal of molecular sciences

    2021  Volume 22, Issue 22

    Abstract: Lung cancer is a complex disease associated with gene mutations, particularly mutations of Kirsten Rat Sarcoma Viral Oncogene Homolog ( ...

    Abstract Lung cancer is a complex disease associated with gene mutations, particularly mutations of Kirsten Rat Sarcoma Viral Oncogene Homolog (
    MeSH term(s) Carcinoma, Non-Small-Cell Lung/drug therapy ; Carcinoma, Non-Small-Cell Lung/genetics ; Carcinoma, Non-Small-Cell Lung/pathology ; Drug Resistance, Neoplasm/genetics ; ErbB Receptors/genetics ; Gene Expression Regulation, Neoplastic/drug effects ; Humans ; MicroRNAs/genetics ; Mutation/genetics ; Neoplasm Proteins/genetics ; Protein Kinase Inhibitors/therapeutic use ; Proto-Oncogene Proteins p21(ras)/genetics
    Chemical Substances KRAS protein, human ; MicroRNAs ; Neoplasm Proteins ; Protein Kinase Inhibitors ; EGFR protein, human (EC 2.7.10.1) ; ErbB Receptors (EC 2.7.10.1) ; Proto-Oncogene Proteins p21(ras) (EC 3.6.5.2)
    Language English
    Publishing date 2021-11-19
    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/ijms222212496
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  10. Article: EGFR-Dependent Extracellular Matrix Protein Interactions Might Light a Candle in Cell Behavior of Non-Small Cell Lung Cancer.

    Hassanein, Sarah Sayed / Abdel-Mawgood, Ahmed Lotfy / Ibrahim, Sherif Abdelaziz

    Frontiers in oncology

    2021  Volume 11, Page(s) 766659

    Abstract: Lung cancer remains the leading cause of cancer-related death and is associated with a poor prognosis. Lung cancer is divided into 2 main types: the major in incidence is non-small cell lung cancer (NSCLC) and the minor is small cell lung cancer (SCLC). ... ...

    Abstract Lung cancer remains the leading cause of cancer-related death and is associated with a poor prognosis. Lung cancer is divided into 2 main types: the major in incidence is non-small cell lung cancer (NSCLC) and the minor is small cell lung cancer (SCLC). Although NSCLC progression depends on driver mutations, it is also affected by the extracellular matrix (ECM) interactions that activate their corresponding signaling molecules in concert with integrins and matrix metalloproteinases (MMPs). These signaling molecules include cytoplasmic kinases, small GTPases, adapter proteins, and receptor tyrosine kinases (RTKs), particularly the epidermal growth factor receptor (EGFR). In NSCLC, the interplay between ECM and EGFR regulates ECM stiffness, angiogenesis, survival, adhesion, migration, and metastasis. Furthermore, some tumor-promoting ECM components (e.g., glycoproteins and proteoglycans) enhance activation of EGFR and loss of PTEN. On the other hand, other tumor-suppressing glycoproteins and -proteoglycans can inhibit EGFR activation, suppressing cell invasion and migration. Therefore, deciphering the molecular mechanisms underlying EGFR and ECM interactions might provide a better understanding of disease pathobiology and aid in developing therapeutic strategies. This review critically discusses the crosstalk between EGFR and ECM affecting cell behavior of NSCLC, as well as the involvement of ECM components in developing resistance to EGFR inhibition.
    Language English
    Publishing date 2021-12-15
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2649216-7
    ISSN 2234-943X
    ISSN 2234-943X
    DOI 10.3389/fonc.2021.766659
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