‘As in the days of Noah’; We’re creating ‘humanized pigs’ in our ultraclean lab to study human illnesses and treatments. ‘Pigs are closer to humans than mice because of GENETIC makeup.’
April 12, 2021 3.18pm EDT The Conversation
The U.S. Food and Drug Administration requires all new medicines to be tested in animals before use in people. Pigs make better medical research subjects than mice, because they are closer to humans in size, physiology and genetic makeup.
In recent years, our team at Iowa State University has found a way to make pigs an even closer stand-in for humans. We have successfully transferred components of the human immune system into pigs that lack a functional immune system. This breakthrough has the potential to accelerate medical research in many areas, including virus and vaccine research, as well as cancer and stem cell therapeutics.
Existing biomedical models
Severe Combined Immunodeficiency, or SCID, is a genetic condition that causes impaired development of the immune system. People can develop SCID, as dramatized in the 1976 movie “The Boy in the Plastic Bubble.” Other animals can develop SCID, too, including mice.
Researchers in the 1980s recognized that SCID mice could be implanted with human immune cells for further study. Such mice are called “humanized” mice and have been optimized over the past 30 years to study many questions relevant to human health.
Mice are the most commonly used animal in biomedical research, but results from mice often do not translate well to human responses, thanks to differences in metabolism, size and divergent cell functions compared with people.
Nonhuman primates are also used for medical research and are certainly closer stand-ins for humans. But using them for this purpose raises numerous ethical considerations. With these concerns in mind, the National Institutes of Health retired most of its chimpanzees from biomedical research in 2013.
Alternative animal models are in demand.
Swine are a viable option for medical research because of their similarities to humans. And with their widespread commercial use, pigs are met with fewer ethical dilemmas than primates. Upwards of 100 million hogs are slaughtered each year for food in the U.S.
In 2012, groups at Iowa State University and Kansas State University, including Jack Dekkers, an expert in animal breeding and genetics, and Raymond Rowland, a specialist in animal diseases, serendipitously discovered a naturally occurring genetic mutation in pigs that caused SCID. We wondered if we could develop these pigs to create a new biomedical model.
Our group has worked for nearly a decade developing and optimizing SCID pigs for applications in biomedical research. In 2018, we achieved a twofold milestone when working with animal physiologist Jason Ross and his lab. Together we developed a more immunocompromised pig than the original SCID pig – and successfully humanized it, by transferring cultured human immune stem cells into the livers of developing piglets.
During early fetal development, immune cells develop within the liver, providing an opportunity to introduce human cells. We inject human immune stem cells into fetal pig livers using ultrasound imaging as a guide. As the pig fetus develops, the injected human immune stem cells begin to differentiate – or change into other kinds of cells – and spread through the pig’s body. Once SCID piglets are born, we can detect human immune cells in their blood, liver, spleen and thymus gland. This humanization is what makes them so valuable for testing new medical treatments.
We have found that human ovarian tumors survive and grow in SCID pigs, giving us an opportunity to study ovarian cancer in a new way. Similarly, because human skin survives on SCID pigs, scientists may be able to develop new treatments for skin burns. Other research possibilities are numerous.
Pigs in a bubble
Since our pigs lack essential components of their immune system, they are extremely susceptible to infection and require special housing to help reduce exposure to pathogens.
SCID pigs are raised in bubble biocontainment facilities. Positive pressure rooms, which maintain a higher air pressure than the surrounding environment to keep pathogens out, are coupled with highly filtered air and water. All personnel are required to wear full personal protective equipment. We typically have anywhere from two to 15 SCID pigs and breeding animals at a given time. (Our breeding animals do not have SCID, but they are genetic carriers of the mutation, so their offspring may have SCID.)
As with any animal research, ethical considerations are always front and center. All our protocols are approved by Iowa State University’s Institutional Animal Care and Use Committee and are in accordance with The National Institutes of Health’s Guide for the Care and Use of Laboratory Animals.
Every day, twice a day, our pigs are checked by expert caretakers who monitor their health status and provide engagement. We have veterinarians on call. If any pigs fall ill, and drug or antibiotic intervention does not improve their condition, the animals are humanely euthanized.
Our goal is to continue optimizing our humanized SCID pigs so they can be more readily available for stem cell therapy testing, as well as research in other areas, including cancer. We hope the development of the SCID pig model will pave the way for advancements in therapeutic testing, with the long-term goal of improving human patient outcomes.
Seven (7) References to ‘BE WATCHING or WATCHFUL.’
Matthew 24:42; Watch therefore: for ye know not what hour your Lord doth come.
Matthew 25:13; Watch therefore, for ye know neither the day nor the hour wherein the Son of man cometh.
Mark 13:35; Watch ye therefore: for ye know not when the master of the house cometh, at even, or at midnight, or at the cockcrowing, or in the morning.
Luke 21:36; Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man
Luke 12:37-39; Blessed are those servants, whom the lord when he cometh shall find watching: verily I say unto you, that he shall gird himself, and make them to sit down to meat, and will come forth and serve them. And if he shall come in the second watch, or come in the third watch, and find them so, blessed are those servants. And this know, that if the goodman of the house had known what hour the thief would come, he would have watched, and not have suffered his house to be broken through.
1 Thessalonians 5:2-4; For yourselves know perfectly that the day of the Lord so cometh as a thief in the night. For when they shall say, Peace and safety; then sudden destruction cometh upon them, as travail upon a woman with child; and they shall not escape. But ye, brethren, are not in darkness, that that day should overtake you as a thief. (Be Watching).
John 13:19 Now I tell you before it come, that, when it is come to pass, ye may believe that I am he.
John 14:29 And now I have told you before it come to pass, that, when it is come to pass, ye might believe.
Luke 21:31 So likewise ye, when ye see these things come to pass, know ye that the kingdom of God is nigh at hand.
Mark 13:29 So ye in like manner, when ye shall see these things come to pass, know that it is nigh, even at the doors.
Luke 21:28 And when these things begin to come to pass, then look up, and lift up your heads; for your redemption draweth nigh.
Revelation 1:1 The Revelation of Jesus Christ, which God gave unto him, to shew unto his servants things which must shortly come to pass; and he sent and signified it by his angel unto his servant John:
‘Increasing Like Labor Pains.’ ‘Fearful Sights.’ ‘Perilous Times.’ ‘Men’s hearts failing with fear.’ Great Convergence of Signs.’ REDEMPTION IMMINENT.
In His Service,
Night Watchman Ministries
Make Your Decision for Christ NOW!!!!!!! Time is Up!!!!!!!
Jesus Christ’s Offer of Salvation:
The ABCs of Salvation through Jesus Christ (the Lamb)
A. Admit/Acknowledge/Accept that you are sinner. Ask God’s forgiveness and repent of your sins.
. . . “For all have sinned, and come short of the glory of God.” (Romans 3:23).
. . . “As it is written, There is none righteous, no, not one.” (Romans 3:10).
. . . “If we say that we have no sin, we deceive ourselves, and the truth is not in us.” (1 John 1:8).
B. Believe Jesus is Lord. Believe that Jesus Christ is who He claimed to be; that He was both fully God and fully man and that we are saved through His death, burial, and resurrection. Put your trust in Him as your only hope of salvation. Become a son or daughter of God by receiving Christ.
. . . “That whosoever believeth in him should not perish, but have eternal life. For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life. For God sent not his son into the world to condemn the world; but that the world through him might be saved. (John 3:15-17). For whosoever shall call upon the name of the Lord shall be saved.” (Romans 10:13).
C. Call upon His name, Confess with your heart and with your lips that Jesus is your Lord and Savior.
. . . “That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved. For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.” (Romans 10:9-10).
. . . “If we say that we have no sin, we deceive ourselves, and the truth is not in us. If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness. If we say that we have not sinned, we make him a liar, and his word is not in us.” (John 1:8-10).
. . . “And he is the propitiation for our sins: and not for ours only, but also for the sins of the whole world. (John 2:2).
. . . “In this was manifested the love of god toward us, because that God sent his only begotten Son into the world, that we might live through him. And we have seen and do testify that the Father sent the Son to be the Saviour of the world. Whosoever shall confess that Jesus is the Son of God, God dwelleth in him, and he in God.” (1 John 4:9, 14-15).
. . . “But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us. Much more then, being now justified by his blood, we shall be saved from wrath through him. For if, when we were enemies, we were reconciled to God by the death of his Son, much more, being reconciled, we shall be saved by his life.” (Romans 5:8-10).
. . . “For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord.” (Romans 6:23).
. . . “Jesus saith unto them, I am the way, the truth, and the life, no man cometh unto the Father, but by me.” (John 14:6).
. . . “For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to everyone that believeth.” (Romans 1:16).
. . . “Neither is there salvation in any other: for there is none other name under heaven given among men, whereby we must be saved.” (Acts: 4:12).
. . . “Who will have all men to be saved, and to come unto the knowledge of the truth for there is one God, and one mediator between God and men, the man Christ Jesus.” (1 Timothy 2:4-6).
. . . “For God did not appoint us to suffer wrath but to receive salvation through our Lord Jesus Christ.” (1 Thessalonians 5:9).
. . . “But as many as received him, to them gave the power to become the sons of God, even to them that believe on his name.” (John 1:12).
True Church / Bride of Christ Spared from God’s Wrath:
Romans 5:8-10. “But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us. Much more then, being now justified by his blood, we shall be saved from wrath through him. For if, when we were enemies, we were reconciled to God by the death of his Son, much more, being reconciled, we shall be saved by his life.”
Romans 12:19. Dearly beloved, avenge not yourselves, but rather give place unto wrath: for it is written, Vengeance is mine; I will repay, saith the Lord.
1 Thessalonians 1:10. And to wait for his Son from heaven, whom he raised from the dead, even Jesus, which delivered us from the wrath to come.
1 Thessalonians 5:9. For God hath not appointed us to wrath, but to obtain salvation by our Lord Jesus Christ,
Romans 8:35. Who shall separate us from the love of Christ? shall tribulation, or distress, or persecution, or famine, or nakedness, or peril, or sword?
Jeremiah 30:7. Alas! for that day is great, so that none is like it: it is even the time of Jacob’s trouble, but he shall be saved out of it.
Revelation 3:10 Because thou hast kept the word of my patience, I also will keep thee from the hour of temptation, which shall come upon all the world, to try them that dwell upon the earth.
Categories: Genetic Manipulation and Hybridization Update