In this study, PS-Cl microspheres were used as carriers to prepare adsorption materials PS-Arg and PS-Glu with different charges through chemical coupling of chloromethyl and amino groups; The surface morphology, element composition, specific surface area, pore size distribution, mechanical strength, the adsorption rate for TNF-α and IL-6 and the biocompatibility of the adsorbent material were investigated; Using sepsis mice as a model, the effects of adsorption materials on blood indicators, body weight, inflammatory factors, histopathological damage, and survival rate of sepsis mice were investigated by intraperitoneal injection. The results showed the adsorption capacities of PS-Arg and PS-Glu for TNF-α in simulated serum were (15.48 ± 0.34) ng/g and (13.95 ± 1.33) ng/g, respectively, which were higher than that of PS adsorbent (12.35 ± 2.71) ng/g; The adsorption capacity for IL-6 is (6.86 ± 0.02) ng/g and (6.91 ± 0.04) ng/g, which are also higher than that of PS adsorbent (5.70 ± 0.18) ng/g. The hemolysis rate of the adsorbents does not exceed 5%, and the APTT and PT values are comparable to the negative control, with no significant effect on blood components. Implanting adsorbent materials into the abdominal cavity after modeling can improve the survival rate, and the PS group having the highest survival rate of 80% at 21 days, far higher than the 40% in the model group. After 24 hours of modeling, the TNF-α levels in the PS, PS-Arg and PS-Glu group decreased by 28.29%, 45.6%, and 33.47%, respectively; While the IL-6 levels decreased by 16.66%, 22.91%, and 18.83%, respectively;The pathological damage of the lungs, pancreas, and spleen is reduced, confirming that intervention with adsorbent materials in the early stages of sepsis can alleviate super inflammatory reactions, reduce tissue damage and improve survival rates. This study provides fundamental research data for clinical practice such as the timing of starting blood purification therapy for sepsis and the optimal type of adsorption material.
Martin-LoechesI, SingerM, LeoneM. Sepsis: Key insights, future directions, and immediate goals. A review and expert opinion[J]. Intensive care medicine, 2024, 50(12), 2043-2049.
[4]
BrandenburgK, Ferrer-EspadaR, Martinez-de-TejadaG, et al. A comparison between SARS-CoV-2 and gram-negative bacteria-induced hyperinflammation and sepsis[J]. International Journal of Molecular Sciences, 2023, 24(20): 15169.
[5]
ChenL, HuangQ, ZhaoT, et al. Nanotherapies for sepsis by regulating inflammatory signals and reactive oxygen and nitrogen species: New insight for treating COVID-19[J]. Redox Biology, 2021, 45: 102046.
[6]
FisherC J, AgostiJ M, OpalM, et al. Treatment of septic shock with the tumor necrosis factor receptor:Fc fusion protein[J]. New England Journal of Medicine, 1996, 334(26): 1697-1702.
[7]
GuoC, YuY, JiangX, et al. Photorenewable azobenzene polymer brush-modified nanoadsorbent for selective adsorption of LDL in serum[J]. ACS Applied Materials & Interfaces, 2022, 14(30): 34388-34399.
[8]
WangJ, ChengC, SunS, et al. Metal-organic framework-based adsorbents for blood purification: Progress, challenges, and prospects[J]. Journal of Materials Chemistry B, 2024, 12(15): 3594-3613.
[9]
YuY, OuL. The development of immunosorbents for the treatment of systemic lupus erythematosus via hemoperfusion[J]. Frontiers in Medicine, 2023: 9.
[10]
CotoiaA, ParisanoV, MariottiP S, et al. Kinetics of different blood biomarkers during polymyxin-B extracorporeal hemoperfusion in abdominal sepsis[J]. Blood Purification, 2024, 53(7): 574-582.
[11]
GrafH, GräfeC, BruegelM, et al. Extracorporeal elimination of pro- and anti-inflammatory modulators by the cytokine adsorber cytoSorb® in patients with hyperinflammation: A prospective study[J]. Infectious Diseases and Therapy, 2024, 13(9): 2089-2101.
[12]
LacquanitiA, SmeriglioA, CampoS, et al. In vitro simulated hemoperfusion on seraph®-100 as a promising strategy to counteract sepsis[J]. Biomedicines, 2024, 12(3): 575.
[13]
LiY, HanM, YangM, et al. Hemoperfusion with the HA330/HA380 cartridge in intensive care settings: A state-of-the-art review[J]. Blood Purification, 2024: 122-137.
[14]
MoriyamaK, NishidaO. Targeting cytokines, pathogen-associated molecular patterns, and damage-associated molecular patterns in sepsis via blood purification[J]. International Journal of Molecular Sciences, 2021, 22(16), 8882.
[15]
ShiC, WangX, WangL, et al. A nanotrap improves survival in severe sepsis by attenuating hyperinflammation[J]. Nature Communications, 2020, 11(1): 3384.
[16]
WangH, MaS. The cytokine storm and factors determining the sequence and severity of organ dysfunction in multiple organ dysfunction syndrome[J]. The American Journal of Emergency Medicine, 2008, 26(6): 711-715.
[17]
ZampieriF G, KellumJ A, ParkM, et al. Relationship between acid-base status and inflammation in the critically ill[J]. Critical Care, 2014, 18(4): R154.
[18]
RossiR A, PieriniA B, PeñéñoryA B. Nucleophilic substitution reactions by electron transfer[J]. Chemical Reviews, 2003, 103(1): 71-168.
[19]
FangH, WeiJ, YuY. In vivo studies of endotoxin removal by lysine-cellulose adsorbents[J]. Biomaterials, 2004,25(23): 5433-5440.
[20]
MishraS K, ChoudhuryS. Experimental protocol for cecal ligation and puncture model of polymicrobial sepsis and assessment of vascular functions in mice[J]. In: Tharakan B (ed). Traumatic and Ischemic Injury: Methods and Protocols. Springer New York: New York, NY, 2018: 161-187.
[21]
RittirschD, Huber-LangM S, FlierlM A, et al. Immunodesign of experimental sepsis by cecal ligation and puncture[J]. Nature Protocols, 2009, 4(1): 31-36.
[22]
SiemposI I, LamH C, DingY, et al. Cecal ligation and puncture-induced sepsis as a model to study autophagy in mice[J]. JoVE, 2014(84): e51066.