Table Info

Table 1.

NP physicochemical characteristics

Variable	HSANP	S-HSANP	P
Diameter (nm)^a	308.3 ± 106.8	311.7 ± 109.7	n.s.
Roundness^a	0.8 ± 0.2	0.8 ± 0.1	n.s.
Shape factor^a	0.5 ± 0.1	0.4 ± 0.1	n.s.
Hydrodynamic diameter (nm)^b
Not functionalized	104.2 ± 14.4	141.8 ± 4.6	n.s.
Functionalized with FLAGPP1	296.4 ± 72.6	447.1 ± 131.2	0.028
Polydispersity index^b
Not functionalized	0.5 ± 0.1	0.6 ± 0.1	n.s.
Functionalized with FLAGPP1	0.1 ± 0.1	0.9 ± 0.1	0.013
ζ-Potential^b
Not functionalized	–43.7 ± 0.5	–42.2 ± 0.3	n.s.
Functionalized with FLAGPP1	–39.5 ± 1.3	–44.6 ± 0.8	n.s.
Microencapsulation efficiency (%)^c	55.5	56.0	n.s.
Loading efficiency (%)^c	Not applicable	22.6	n.s.

Values are mean ± SD. HSANP and S-HSANP, void and SGI-1027-loaded NP, respectively. ^a n = 60 individual NP per group; ^b means of technical triplicate measure; ^c mean from a technical duplicate measure. Kruskal-Wallis test with Bonferroni correction and multiple comparisons post hoc. n.s.: statistically not significant

Supplementary materials

The supplementary material for this article is available at: https://www.explorationpub.com/uploads/Article/file/101221_sup_1.pdf.

Declarations

Acknowledgments

We thank the personnel of Cedars-Sinai Medical Center Microscopy Core, Los Angeles, CA, USA; Dr. Jiani Zhu, Postdoctoral Scientist, Medicine Department, Cedars Sinai Medical Center, Los Angeles, CA, USA; and the personnel of the Flow Cytometry Core, XXI Century National Medical Center, Mexico City, Mexico, for their generous assistance. This article is in memory of Dr. Jorge A. Martínez García, excellent colleague and pathologist, generous collaborator who has given assistance and advice during the early phase of this study.

Author contributions

ACMS: Investigation, Writing—original draft. AMG, DCC, and GdCRM: Investigation. RCJ and EKK: Supervision, Validation. LSS: Investigation, Supervision, Validation. DK and DRR: Investigation, Formal analysis. AMA: Validation, Supervision. GL: Supervision, Validation, Writing—review & editing. SZ: Conceptualization, Supervision, Writing—review & editing.

Conflicts of interest

SZ filed a patent application regarding the SGI-1027-loaded, PP1-functionalized HSA NP described here. The patent (patent number: MX/a/2019/015004) is of no financial interest to the subject matter and material of the manuscript. All other authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Ethical approval

The laboratory animal protocol was approved by the committee for ethics in research of the University of Guanajuato (approval no. CIBIUG-P10-2017) and performed in agreement with the official Mexican guideline for the use of laboratory animals NOM-062-ZOO-1999.

Consent to participate

Not applicable.

Consent to publication

Not applicable.

Availability of data and materials

The data analyzed in this study was obtained from our own experimental work. Requests for access to these datasets should be directed to Silvio Zaina, szaina@ugto.mx.

Funding

Work was supported by the Mexican Council for Humanities, Science and Technology (CONAHCyT) Proyectos de desarrollo científico para atender problemas nacionales grant no. [584] to SZ; and by the University of Guanajuato Convocatoria Institucional de Investigación Científica grant no. [045/2019] to SZ. CONAHCyT fellowships supported DCC (Postdoctoral), ACMS (PhD), AMG (MSc) and GdCRM (“Ayudante a SNI3/Emérito”). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Copyright

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