Targeting AGTPBP1 inhibits pancreatic cancer progression via regulating microtubules and ERK signaling pathway.

BACKGROUND: AGTPBP1 is a cytosolic carboxypeptidase that cleaves poly-glutamic acids from the C terminus or side chains of α/ß tubulins. Although its dysregulated expression has been linked to the development of non-small cell lung cancer, the specific roles and mechanisms of AGTPBP1 in pancreatic cancer (PC) have yet to be fully understood. In this study, we examined the role of AGTPBP1 on PC in vitro and in vivo. METHODS: Immunohistochemistry was used to examine the expression of AGTPBP1 in PC and non-cancerous tissues. Additionally, we assessed the malignant behaviors of PC cells following siRNA-mediated AGTPBP1 knockdown both in vitro and in vivo. RNA sequencing and bioinformatics analysis were performed to identify the differentially expressed genes regulated by AGTPBP1. RESULTS: We determined that AGTPBP1 was overexpressed in PC tissues and the higher expression of AGTPBP1 was closely related to the location of tumors. AGTPBP1 inhibition can significantly decrease cell progression in vivo and in vitro. Moreover, the knockdown of AGTPBP1 inhibited the expression of ERK1/2, P-ERK1/2, MYLK, and TUBB4B proteins via the ERK signaling pathway. CONCLUSION: Our research indicates that AGTPBP1 may be a putative therapeutic target for PC.

[Approach to the road of vigorously developing Chinese medicine by scientific location of channels and collaterals].

Through researches of channels and collaterals and clinical practice of many years, the authors understand that Chinese medicine, which considers the human body as an interrelated, mutual constraints, whole, dynamic living system, has gradually become an important part of modern medicine. Channels and collaterals are a closed loop system which is communicated and linked by energy and information in the form of electromagnetic oscillation, reflecting many characteristics similar to quantum. Channels and collaterals are not a fixed organizational structure. Studies on channel and collaterals find that the track of the propagated sensation along channels (PSC) have the phenomenon drifting about. This exactly reflects the law of channels dynamically running. By information triggering and living resonance, channels and collaterals bring into play entirely regulative action. The innovative treatment of channels and collaterals followed by characteristics and laws of quantum can get a better curative effect. Theory of channels in the position of quantum information medical science provides an important breach for modernization of Chinese medicine.

[Study on theory and clinical application of meridians (III)].

OBJECTIVE: To probe into essence of meridians. METHODS: To examine meridians, acupoints, brain and relative organs by SQUID and fMRI, and to analyze the results. CONCLUSION: A relative stable circular current of electromagnetic and chemical oscillation along the low electric resistance pathway was found. Competition of different frequency oscillation often yield resonance in some positions of the human body so as to form "oscillatory network" and "strange point" with the electromagnetic and chemical oscillation circulating dominant position in the body, which is possibly meridians and acupoints with regulative actions. The brain is the center of meridians. In different physiological or pathological process, characteristic changes and negatively correlative phenomenon of electromagnetic spectrum at acupoints and the brain are possibly key mechanisms in dynamic regulation of meridians.

[Relationship of meridians with human material and energy systems study on theory and clinical application of meridians (IV)].

OBJECTIVE: To expound the relationship between meridians and the human two information systems, material system and energy system. METHODS: Summarize and analyze the results of experimental and other studies. CONCLUSION: The carrier of the meridian is human material system. The nerve, body fluid, microcirculation and chemical factors take part in meridian circulation, and it must depend on the energy information system which works mainly at the form of electromagnetic and chemical oscillation with functions of physiological regulation and pathological repair. Oscillation parameters include various signals of regulating development and physiologic activities, and coordinate functions of organs and tissues. The meridians have the "quantum" characteristics, material particles coexist and exchange each other with electromagnetic and chemical oscillation characteristic.

[Meridian regulation is a course of communicating and implicating of the informational system with the material system].

OBJECTIVE: To approach to the intrinsic mechanism of meridian regulation. METHODS: Summarize and analyze the results of the author's studies and the development of other studies about life regulating and meridian at home and abroad. CONCLUSION: The regulating mechanism of meridians has two levels. The macroscopic regulation center is the brain, and the microscopic regulation base is the energy and informational current that depends on electromagnetic and chemical oscillation mainly. The meridian regulation is the process of the energy and informational system communicating and implicating with the material system. Neuroendocrine is the link of communicating and implicating, and Ca2+ oscillation frequencies exert intermediary function between the two systems.