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Karolczak K, Guligowska A, Sołtysik BK, Kostanek J, Kostka T, Watala C. Estimated Intake of Potassium, Phosphorus and Zinc with the Daily Diet Negatively Correlates with ADP-Dependent Whole Blood Platelet Aggregation in Older Subjects. Nutrients 2024; 16:332. [PMID: 38337617 PMCID: PMC10857292 DOI: 10.3390/nu16030332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 02/12/2024] Open
Abstract
The aggregation of blood platelets is the pivotal step that leads to thrombosis. The risk of thrombotic events increases with age. Available data suggest that minerals taken with diet can affect the course of thrombosis. However, little is known about the relationship between platelet aggregability and mineral intake with diet among elderly people. Thus, we evaluated the associations between the reactivities of platelets to arachidonic acid, collagen or ADP and the estimated quantities of minerals consumed as a part of the daily diet in 246 subjects aged 60-65 years (124 men and 122 women). The found simple (not-adjusted) Spearman's rank negative correlations are as follows: 1. arachidonate-dependent aggregation and the amounts of potassium, zinc, magnesium, phosphorus, iron, copper and manganese; 2. collagen-dependent aggregation and the amounts of potassium, phosphorus, iron and zinc; and 3. ADP-dependent aggregation and the amounts of potassium, phosphorus and zinc. The negative associations between ADP-dependent platelet reactivity and the amount of potassium, phosphorus and zinc and between collagen-dependent aggregability and the amount of phosphorus were also noted after adjusting for a bunch of cardiovascular risk factors. Overall, in older subjects, the intake of minerals with diet is negatively related to blood platelet reactivity, especially in response to ADP. Diet fortification with some minerals may possibly reduce the thrombotic risk among elderly patients.
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Affiliation(s)
- Kamil Karolczak
- Department of Haemostatic Disorders, Medical University of Lodz, Ul. Mazowiecka 6/8, 92-215 Lodz, Poland; (J.K.); (C.W.)
| | - Agnieszka Guligowska
- Department of Geriatrics, Healthy Aging Research Center (HARC), Medical University of Lodz, Pl. Hallera 1, 90-647 Lodz, Poland; (A.G.); (B.K.S.); (T.K.)
| | - Bartłomiej K. Sołtysik
- Department of Geriatrics, Healthy Aging Research Center (HARC), Medical University of Lodz, Pl. Hallera 1, 90-647 Lodz, Poland; (A.G.); (B.K.S.); (T.K.)
| | - Joanna Kostanek
- Department of Haemostatic Disorders, Medical University of Lodz, Ul. Mazowiecka 6/8, 92-215 Lodz, Poland; (J.K.); (C.W.)
| | - Tomasz Kostka
- Department of Geriatrics, Healthy Aging Research Center (HARC), Medical University of Lodz, Pl. Hallera 1, 90-647 Lodz, Poland; (A.G.); (B.K.S.); (T.K.)
| | - Cezary Watala
- Department of Haemostatic Disorders, Medical University of Lodz, Ul. Mazowiecka 6/8, 92-215 Lodz, Poland; (J.K.); (C.W.)
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Vasileva VY, Chubinskiy-Nadezhdin VI. Evaluation of the Role of Potassium Channels in the Proliferation, Migration, and Invasion of Blood Cells. Methods Mol Biol 2024; 2796:185-190. [PMID: 38856902 DOI: 10.1007/978-1-0716-3818-7_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
The potassium channels are one of the key regulators of cell membrane potential and permeability properties of blood cells. The changes in functioning of potassium channels control crucial cell processes such as proliferation, viability, migration, and invasion. The correct estimation of these processes is important for the characterization of physiological and pathophysiological cell states. Here, we present the experimental protocol for evaluation of the role of potassium ion channels in the proliferation, migration, and invasion of blood cells.
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Affiliation(s)
- Valeria Y Vasileva
- Institute of Cytology, Russian Academy of Sciences, St. Petersburg, Russian Federation
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Bao Q, Song L, Ma L, Wang M, Hou Z, Lin J, Li C. Prediction of postoperative hypokalemia in patients with oral cancer undergoing en bloc cancer resection: a retrospective cohort study. BMC Oral Health 2023; 23:663. [PMID: 37710182 PMCID: PMC10500799 DOI: 10.1186/s12903-023-03371-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 08/30/2023] [Indexed: 09/16/2023] Open
Abstract
BACKGROUND The factors associated with postoperative hypokalemia in patients with oral cancer remain unclear. We determined the preoperative factors associated with postoperative hypokalemia in patients with oral cancer following en bloc cancer resection and established a nomogram for postoperative hypokalemia prediction. METHODS Data from 381 patients with oral cancer who underwent en bloc cancer resection were retrospectively analyzed. Univariate and multivariate analyses were performed to identify the risk factors for postoperative hypokalemia. We used receiver operating characteristic (ROC) curves to quantify the factors' effectiveness. A nomogram was created to show each predictor's relative weight and the likelihood of postoperative hypokalemia development. The multinomial regression model's effectiveness was also evaluated. RESULTS Preoperative factors, including sex, preoperative serum potassium level, and preoperative platelet-to-lymphocyte ratio (PLR), were significantly associated with postoperative hypokalemia. Based on the ROC curve, the preoperative serum potassium and PLR cut-off levels were 3.98 mmol/L and 117, respectively. Further multivariate analysis indicated that female sex, preoperative serum potassium level < 3.98 mmol/L, and preoperative PLR ≥ 117 were independently associated with postoperative hypokalemia. We constructed a predictive nomogram with all these factors for the risk of postoperative hypokalemia with good discrimination and internal validation. CONCLUSIONS The predictive nomogram for postoperative hypokalemia risk constructed with these factors had good discrimination and internal validation. The developed nomogram will add value to these independent risk factors that can be identified at admission in order to predict postoperative hypokalemia.
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Affiliation(s)
- Qilin Bao
- Nutrition Department, West China Hospital of Stomatology, Sichuan University, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, No. 14, Section Three, Ren Min Nan Road, Chengdu, Sichuan, China
| | - Lei Song
- Nutrition Department, West China Hospital of Stomatology, Sichuan University, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, No. 14, Section Three, Ren Min Nan Road, Chengdu, Sichuan, China
| | - Liyuan Ma
- Medical Record Room, West China Hospital of Stomatology, Sichuan University, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, No. 14, Section Three, Ren Min Nan Road, Chengdu, Sichuan, China
| | - Meng Wang
- Medical Record Room, West China Hospital of Stomatology, Sichuan University, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, No. 14, Section Three, Ren Min Nan Road, Chengdu, Sichuan, China
| | - Zhaohuan Hou
- Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, No. 14, Section Three, Ren Min Nan Road, Chengdu, Sichuan, China
| | - Jie Lin
- Department of Oral Anesthesia, West China Hospital of Stomatology, Sichuan University, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, No. 14, Section Three, Ren Min Nan Road, Chengdu, Sichuan, China
| | - Chunjie Li
- Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, No. 14, Section Three, Ren Min Nan Road, Chengdu, Sichuan, China.
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Xia C, Liu C, Ren S, Cai Y, Zhang Q, Xia C. Potassium channels, tumorigenesis and targeted drugs. Biomed Pharmacother 2023; 162:114673. [PMID: 37031494 DOI: 10.1016/j.biopha.2023.114673] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/03/2023] [Accepted: 04/06/2023] [Indexed: 04/11/2023] Open
Abstract
Potassium channels play an important role in human physiological function. Recently, various molecular mechanisms have implicated abnormal functioning of potassium channels in the proliferation, migration, invasion, apoptosis, and cancer stem cell phenotype formation. Potassium channels also mediate the association of tumor cells with the tumor microenvironment. Meanwhile, potassium channels are important targets for cancer chemotherapy. A variety of drugs exert anti-cancer effects by modulating potassium channels in tumor cells. Therefore, there is a need to understand how potassium channels participate in tumor development and progression, which could reveal new, novel targets for cancer diagnosis and treatment. This review summarizes the roles of voltage-gated potassium channels, calcium-activated potassium channels, inwardly rectifying potassium channels, and two-pore domain potassium channels in tumorigenesis and the underlying mechanism of potassium channel-targeted drugs. Therefore, the study lays the foundation for rational and effective drug design and individualized clinical therapeutics.
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Affiliation(s)
- Cong Xia
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province 116023, China
| | - Can Liu
- Affiliated Foshan Maternity and Child Healthcare Hospital, Southern Medical University, Foshan, Guangdong Province 528099, China; School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Shuangyi Ren
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province 116023, China
| | - Yantao Cai
- Affiliated Foshan Maternity and Child Healthcare Hospital, Southern Medical University, Foshan, Guangdong Province 528099, China
| | - Qianshi Zhang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province 116023, China.
| | - Chenglai Xia
- Affiliated Foshan Maternity and Child Healthcare Hospital, Southern Medical University, Foshan, Guangdong Province 528099, China; School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong Province 510515, China.
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Pelzmann B, Hatab A, Scheruebel S, Langthaler S, Rienmueller T, Sokolowski A, Gorischek A, Platzer D, Zorn-Pauly K, Jahn SW, Bauernhofer T, Schreibmayer W. Consequences of somatic mutations of GIRK1 detected in primary malign tumors on expression and function of G-protein activated, inwardly rectifying, K+ channels. Front Oncol 2022; 12:998907. [DOI: 10.3389/fonc.2022.998907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 10/05/2022] [Indexed: 11/13/2022] Open
Abstract
A search in the GDC Data Portal revealed 304 documented somatic mutations of the KCNJ3 gene in primary tumors (out of 10.202 cases). Most affected tumor types were carcinomas from uterus, skin and lung, while breast cancer exerted the lowest number of somatic mutations. We focused our research on 15 missense mutations within the region between TM1 and TM2, comprising the pore helix and ion selectivity signature. Expression was measured by confocal laser scan microscopy of eGFP tagged GIRK1 subunits, expressed with and without GIRK4 in oocytes of Xenopus laevis. GIRK ion currents were activated via coexpressed m2Rs and measured by the Two Electrode Voltage Clamp technique. Magnitude of the total GIRK current, as well as the fraction of current inducible by the agonist, were measured. Ion selectivity was gauged by assessment of the PNa+/PK+ ratio, calculated by the GIRK current reversal potential in extracellular media at different Na+ and K+ concentrations. None of the tested mutations was able to form functional GIRK1 homooligomeric ion channels. One of the mutations, G145A, which locates directly to the ion selectivity signature, exerted an increased PNa+/PK+ ratio. Generally, the missense mutations studied can be categorized into three groups: (i) normal/reduced expression accompanied by reduced/absent function (S132Y, F136L, E139K, G145A, R149Q, R149P, G178D, S185Y, Q186R), (ii) normal/increased expression as well as increased function (E140M, A142T, M184I) and (iii) miniscule expression but increased function relative to expression levels (I151N, G158S). We conclude, that gain of function mutations, identical or similar to categories (ii) and (iii), may potentially be involved in genesis and progression of malignancies in tissues that exert a high rate of occurrence of somatic mutations of KCNJ3.
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Taylor KA, Mahaut-Smith MP. Ion channels and ion homeostasis in the platelet and megakaryocyte. Platelets 2021; 32:853-854. [PMID: 34370618 DOI: 10.1080/09537104.2021.1964866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Kirk A Taylor
- Institute for Cardiovascular and Metabolic Research, School of Biological Sciences, University of Reading, Reading, UK
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